/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:20,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:20,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:20,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:20,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:20,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:20,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:20,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:20,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:20,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:20,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:20,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:20,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:20,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:20,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:20,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:20,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:20,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:20,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:20,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:20,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:20,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:20,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:20,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:20,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:19:20,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:19:20,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:19:20,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:19:20,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:19:20,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:19:20,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:19:20,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:19:20,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:19:20,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:20,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:20,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:20,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:19:20,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:20,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:20,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:20,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:20,336 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:20,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:20,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:20,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:20,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:20,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:20,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:20,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:20,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:20,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:20,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:20,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:20,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:20,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:20,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:20,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:20,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:20,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:20,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:20,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:20,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:20,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:20,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:20,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:20,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:20,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:20,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:20,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:20,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:20,701 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:20,702 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-10-15 22:19:20,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1206bacc/7a8ebda2aa744928a75434fc39375ccb/FLAGf4a913451 [2020-10-15 22:19:21,301 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:21,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-10-15 22:19:21,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1206bacc/7a8ebda2aa744928a75434fc39375ccb/FLAGf4a913451 [2020-10-15 22:19:21,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1206bacc/7a8ebda2aa744928a75434fc39375ccb [2020-10-15 22:19:21,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:21,599 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:21,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:21,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:21,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:21,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:21" (1/1) ... [2020-10-15 22:19:21,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22290d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:21, skipping insertion in model container [2020-10-15 22:19:21,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:21" (1/1) ... [2020-10-15 22:19:21,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:21,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:22,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:22,136 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:22,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:22,274 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:22,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22 WrapperNode [2020-10-15 22:19:22,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:22,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:22,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:22,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:22,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:22,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:22,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:22,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:22,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... [2020-10-15 22:19:22,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:22,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:22,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:22,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:22,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:22,412 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-10-15 22:19:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-10-15 22:19:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 22:19:22,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 22:19:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:22,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:22,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:22,416 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:19:22,753 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:22,753 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-15 22:19:22,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:22 BoogieIcfgContainer [2020-10-15 22:19:22,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:22,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:22,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:22,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:22,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:21" (1/3) ... [2020-10-15 22:19:22,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a69153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:22, skipping insertion in model container [2020-10-15 22:19:22,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:22" (2/3) ... [2020-10-15 22:19:22,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a69153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:22, skipping insertion in model container [2020-10-15 22:19:22,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:22" (3/3) ... [2020-10-15 22:19:22,769 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2020-10-15 22:19:22,780 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:22,781 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:22,788 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:22,789 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:22,813 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,814 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,814 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,815 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,815 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,815 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,815 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,816 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,816 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,817 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,817 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,818 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,818 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,819 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,819 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,819 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,823 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,823 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,824 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,824 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,824 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,831 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,831 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:22,847 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:19:22,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:22,868 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:22,868 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:22,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:22,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:22,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:22,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:22,869 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:22,881 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:22,884 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:22,887 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:22,889 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 112 flow [2020-10-15 22:19:22,927 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-10-15 22:19:22,927 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:22,933 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2020-10-15 22:19:22,935 INFO L117 LiptonReduction]: Number of co-enabled transitions 692 [2020-10-15 22:19:24,041 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 22:19:24,104 INFO L132 LiptonReduction]: Checked pairs total: 670 [2020-10-15 22:19:24,104 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-15 22:19:24,112 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-10-15 22:19:24,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-15 22:19:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-15 22:19:24,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:24,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:24,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:24,150 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:24,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:24,157 INFO L82 PathProgramCache]: Analyzing trace with hash 208056, now seen corresponding path program 1 times [2020-10-15 22:19:24,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:24,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780587049] [2020-10-15 22:19:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:24,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780587049] [2020-10-15 22:19:24,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:24,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:24,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861173596] [2020-10-15 22:19:24,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:24,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:24,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:24,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:24,393 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-15 22:19:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:24,421 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-10-15 22:19:24,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:24,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:24,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:24,433 INFO L225 Difference]: With dead ends: 35 [2020-10-15 22:19:24,434 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 22:19:24,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 22:19:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-15 22:19:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-15 22:19:24,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-10-15 22:19:24,472 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-10-15 22:19:24,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:24,473 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-10-15 22:19:24,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-10-15 22:19:24,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:19:24,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:24,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:24,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:24,475 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:24,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1139052385, now seen corresponding path program 1 times [2020-10-15 22:19:24,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:24,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319457006] [2020-10-15 22:19:24,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:24,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319457006] [2020-10-15 22:19:24,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:24,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:24,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843210051] [2020-10-15 22:19:24,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:24,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:24,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:24,556 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-10-15 22:19:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:24,573 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-10-15 22:19:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:19:24,573 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 22:19:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:24,574 INFO L225 Difference]: With dead ends: 26 [2020-10-15 22:19:24,574 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 22:19:24,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:24,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 22:19:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-15 22:19:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 22:19:24,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-10-15 22:19:24,580 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-10-15 22:19:24,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:24,580 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-10-15 22:19:24,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-10-15 22:19:24,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:19:24,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:24,581 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:24,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:24,582 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:24,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash -950894116, now seen corresponding path program 1 times [2020-10-15 22:19:24,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:24,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564080709] [2020-10-15 22:19:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:24,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:24,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:24,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:24,643 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:24,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:24,645 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:24,645 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 22:19:24,655 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,656 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,656 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,656 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,656 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,657 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,657 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,657 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,657 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,657 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,658 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,658 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,665 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,666 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,666 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,666 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,666 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,668 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,669 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,669 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:24,678 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:19:24,679 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:24,679 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:24,679 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:24,679 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:24,679 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:24,680 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:24,680 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:24,680 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:24,683 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:24,683 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:24,683 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:24,684 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 162 flow [2020-10-15 22:19:24,703 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2020-10-15 22:19:24,703 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 22:19:24,705 INFO L80 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 83 events. 4/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 141 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2020-10-15 22:19:24,707 INFO L117 LiptonReduction]: Number of co-enabled transitions 1108 [2020-10-15 22:19:25,742 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:19:25,809 INFO L132 LiptonReduction]: Checked pairs total: 1240 [2020-10-15 22:19:25,809 INFO L134 LiptonReduction]: Total number of compositions: 62 [2020-10-15 22:19:25,810 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-10-15 22:19:25,824 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-10-15 22:19:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-10-15 22:19:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:25,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:25,825 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:25,825 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:25,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:25,826 INFO L82 PathProgramCache]: Analyzing trace with hash 354555, now seen corresponding path program 1 times [2020-10-15 22:19:25,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:25,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524475256] [2020-10-15 22:19:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:25,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524475256] [2020-10-15 22:19:25,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:25,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:25,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575081498] [2020-10-15 22:19:25,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:25,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:25,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:25,860 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-10-15 22:19:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:25,888 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-10-15 22:19:25,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:25,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:25,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:25,893 INFO L225 Difference]: With dead ends: 185 [2020-10-15 22:19:25,894 INFO L226 Difference]: Without dead ends: 171 [2020-10-15 22:19:25,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-15 22:19:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-10-15 22:19:25,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-10-15 22:19:25,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-10-15 22:19:25,928 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-10-15 22:19:25,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:25,928 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-10-15 22:19:25,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:25,929 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-10-15 22:19:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:25,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:25,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:25,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:25,930 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:25,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:25,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1106209149, now seen corresponding path program 1 times [2020-10-15 22:19:25,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:25,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190915089] [2020-10-15 22:19:25,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:25,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190915089] [2020-10-15 22:19:25,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:25,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:25,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518796949] [2020-10-15 22:19:25,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:25,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:25,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:25,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:25,990 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-10-15 22:19:26,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:26,047 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-10-15 22:19:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:26,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:26,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:26,050 INFO L225 Difference]: With dead ends: 205 [2020-10-15 22:19:26,050 INFO L226 Difference]: Without dead ends: 201 [2020-10-15 22:19:26,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:26,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-10-15 22:19:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-10-15 22:19:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-15 22:19:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-10-15 22:19:26,070 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-10-15 22:19:26,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:26,070 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-10-15 22:19:26,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-10-15 22:19:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:26,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,072 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:26,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:26,073 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,073 INFO L82 PathProgramCache]: Analyzing trace with hash 583411714, now seen corresponding path program 1 times [2020-10-15 22:19:26,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133702023] [2020-10-15 22:19:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:26,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133702023] [2020-10-15 22:19:26,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:26,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:26,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274011077] [2020-10-15 22:19:26,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:26,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:26,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:26,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:26,143 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-10-15 22:19:26,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:26,196 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-10-15 22:19:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:26,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:26,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:26,198 INFO L225 Difference]: With dead ends: 189 [2020-10-15 22:19:26,199 INFO L226 Difference]: Without dead ends: 185 [2020-10-15 22:19:26,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:26,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-15 22:19:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-10-15 22:19:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-15 22:19:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-10-15 22:19:26,212 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-10-15 22:19:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:26,213 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-10-15 22:19:26,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:26,214 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-10-15 22:19:26,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:19:26,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:26,215 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:26,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:19:26,216 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:26,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:26,216 INFO L82 PathProgramCache]: Analyzing trace with hash 903154619, now seen corresponding path program 1 times [2020-10-15 22:19:26,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:26,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141237565] [2020-10-15 22:19:26,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:26,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:26,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:26,249 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:26,249 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:26,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:19:26,253 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:26,254 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 22:19:26,267 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,267 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,267 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,267 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,268 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,269 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,271 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,271 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,271 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,282 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,282 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,282 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,282 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,283 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,284 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,284 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,284 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,285 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,286 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,286 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,286 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,286 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,287 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:26,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 22:19:26,295 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:26,295 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:26,295 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:26,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:26,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:26,296 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:26,296 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:26,296 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:26,298 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:26,298 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,298 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,299 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 87 transitions, 216 flow [2020-10-15 22:19:26,319 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2020-10-15 22:19:26,320 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 22:19:26,321 INFO L80 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 105 events. 5/105 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 187 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2020-10-15 22:19:26,325 INFO L117 LiptonReduction]: Number of co-enabled transitions 1608 [2020-10-15 22:19:27,613 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-15 22:19:27,789 INFO L132 LiptonReduction]: Checked pairs total: 2157 [2020-10-15 22:19:27,790 INFO L134 LiptonReduction]: Total number of compositions: 77 [2020-10-15 22:19:27,790 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-10-15 22:19:27,822 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-10-15 22:19:27,823 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-10-15 22:19:27,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:27,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:27,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:27,824 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:27,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:27,824 INFO L82 PathProgramCache]: Analyzing trace with hash 535749, now seen corresponding path program 1 times [2020-10-15 22:19:27,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:27,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558156235] [2020-10-15 22:19:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:27,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558156235] [2020-10-15 22:19:27,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:27,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:27,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696702585] [2020-10-15 22:19:27,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:27,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:27,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:27,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:27,857 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-10-15 22:19:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:27,887 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-10-15 22:19:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:27,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:27,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:27,894 INFO L225 Difference]: With dead ends: 600 [2020-10-15 22:19:27,895 INFO L226 Difference]: Without dead ends: 559 [2020-10-15 22:19:27,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-10-15 22:19:27,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-10-15 22:19:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-15 22:19:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-10-15 22:19:27,940 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-10-15 22:19:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:27,940 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-10-15 22:19:27,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-10-15 22:19:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:27,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:27,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:27,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:19:27,942 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:27,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash -404806880, now seen corresponding path program 1 times [2020-10-15 22:19:27,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:27,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132438853] [2020-10-15 22:19:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:28,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132438853] [2020-10-15 22:19:28,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:28,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790811843] [2020-10-15 22:19:28,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:28,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:28,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:28,014 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-10-15 22:19:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,100 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-10-15 22:19:28,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:28,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:28,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,109 INFO L225 Difference]: With dead ends: 817 [2020-10-15 22:19:28,109 INFO L226 Difference]: Without dead ends: 812 [2020-10-15 22:19:28,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:28,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-10-15 22:19:28,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-10-15 22:19:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-15 22:19:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-10-15 22:19:28,136 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-10-15 22:19:28,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,137 INFO L481 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-10-15 22:19:28,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-10-15 22:19:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:28,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,138 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 22:19:28,139 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:28,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,139 INFO L82 PathProgramCache]: Analyzing trace with hash -669323978, now seen corresponding path program 1 times [2020-10-15 22:19:28,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407804050] [2020-10-15 22:19:28,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:28,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407804050] [2020-10-15 22:19:28,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:28,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750775479] [2020-10-15 22:19:28,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:28,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:28,180 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-10-15 22:19:28,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,250 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-10-15 22:19:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:28,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:28,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,257 INFO L225 Difference]: With dead ends: 843 [2020-10-15 22:19:28,257 INFO L226 Difference]: Without dead ends: 836 [2020-10-15 22:19:28,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-15 22:19:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-10-15 22:19:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-10-15 22:19:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-10-15 22:19:28,283 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-10-15 22:19:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,284 INFO L481 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-10-15 22:19:28,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-10-15 22:19:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:28,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,285 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 22:19:28,286 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,286 INFO L82 PathProgramCache]: Analyzing trace with hash -56737855, now seen corresponding path program 1 times [2020-10-15 22:19:28,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015260503] [2020-10-15 22:19:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:28,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015260503] [2020-10-15 22:19:28,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138944277] [2020-10-15 22:19:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:28,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:28,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:28,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:28,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:28,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151464410] [2020-10-15 22:19:28,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:28,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:28,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:28,459 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 9 states. [2020-10-15 22:19:28,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:28,631 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-10-15 22:19:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:28,632 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:28,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:28,638 INFO L225 Difference]: With dead ends: 1059 [2020-10-15 22:19:28,639 INFO L226 Difference]: Without dead ends: 1052 [2020-10-15 22:19:28,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:28,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-15 22:19:28,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-10-15 22:19:28,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-10-15 22:19:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-10-15 22:19:28,666 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-10-15 22:19:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:28,666 INFO L481 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-10-15 22:19:28,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-10-15 22:19:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:28,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:28,668 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:28,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-15 22:19:28,883 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:28,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:28,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1024744543, now seen corresponding path program 2 times [2020-10-15 22:19:28,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:28,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695821982] [2020-10-15 22:19:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:28,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695821982] [2020-10-15 22:19:28,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:28,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:28,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610435340] [2020-10-15 22:19:28,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:28,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:28,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:28,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:28,933 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-10-15 22:19:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:29,109 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-10-15 22:19:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:29,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:29,119 INFO L225 Difference]: With dead ends: 1053 [2020-10-15 22:19:29,119 INFO L226 Difference]: Without dead ends: 1045 [2020-10-15 22:19:29,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:29,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-10-15 22:19:29,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-10-15 22:19:29,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-10-15 22:19:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-10-15 22:19:29,150 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-10-15 22:19:29,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:29,151 INFO L481 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-10-15 22:19:29,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-10-15 22:19:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:29,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:29,153 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:29,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:19:29,154 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:29,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:29,154 INFO L82 PathProgramCache]: Analyzing trace with hash 68174732, now seen corresponding path program 1 times [2020-10-15 22:19:29,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:29,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810183279] [2020-10-15 22:19:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:29,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810183279] [2020-10-15 22:19:29,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:29,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:29,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656052460] [2020-10-15 22:19:29,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:29,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:29,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:29,195 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-10-15 22:19:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:29,258 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-10-15 22:19:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:29,259 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:29,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:29,265 INFO L225 Difference]: With dead ends: 736 [2020-10-15 22:19:29,265 INFO L226 Difference]: Without dead ends: 728 [2020-10-15 22:19:29,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-10-15 22:19:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-10-15 22:19:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-10-15 22:19:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-10-15 22:19:29,289 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-10-15 22:19:29,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:29,289 INFO L481 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-10-15 22:19:29,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-10-15 22:19:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 22:19:29,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:29,291 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:29,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 22:19:29,291 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:29,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:29,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2109628021, now seen corresponding path program 1 times [2020-10-15 22:19:29,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:29,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672421196] [2020-10-15 22:19:29,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:29,303 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:29,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:29,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:29,318 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:29,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 22:19:29,319 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:29,319 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 22:19:29,331 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,331 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,331 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,332 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,333 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,334 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,335 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,336 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,344 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,344 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,344 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,344 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,344 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,348 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,349 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,349 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,349 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,352 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,353 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,353 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,353 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,353 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,354 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,354 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,355 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,355 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,355 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,356 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,356 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,356 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,356 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,356 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,357 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,358 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,358 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,358 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,359 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,359 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,360 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,361 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,361 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,361 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,361 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,363 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,363 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,363 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,363 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:29,365 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 22:19:29,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:29,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:29,366 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:29,366 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:29,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:29,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:29,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:29,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:29,368 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:29,368 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:29,368 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:29,368 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 105 transitions, 274 flow [2020-10-15 22:19:29,388 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2020-10-15 22:19:29,388 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 22:19:29,390 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 127 events. 6/127 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 211 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2020-10-15 22:19:29,394 INFO L117 LiptonReduction]: Number of co-enabled transitions 2192 [2020-10-15 22:19:30,992 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-10-15 22:19:31,054 INFO L132 LiptonReduction]: Checked pairs total: 2978 [2020-10-15 22:19:31,054 INFO L134 LiptonReduction]: Total number of compositions: 97 [2020-10-15 22:19:31,054 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-10-15 22:19:31,180 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-10-15 22:19:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-10-15 22:19:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:31,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:31,181 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,182 INFO L82 PathProgramCache]: Analyzing trace with hash 753552, now seen corresponding path program 1 times [2020-10-15 22:19:31,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083920205] [2020-10-15 22:19:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:31,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083920205] [2020-10-15 22:19:31,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:31,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:31,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671307286] [2020-10-15 22:19:31,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:31,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:31,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:31,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:31,207 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-10-15 22:19:31,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:31,253 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-10-15 22:19:31,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:31,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:31,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:31,270 INFO L225 Difference]: With dead ends: 1889 [2020-10-15 22:19:31,270 INFO L226 Difference]: Without dead ends: 1767 [2020-10-15 22:19:31,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:31,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-10-15 22:19:31,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-10-15 22:19:31,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-10-15 22:19:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-10-15 22:19:31,384 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-10-15 22:19:31,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:31,384 INFO L481 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-10-15 22:19:31,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-10-15 22:19:31,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:31,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:31,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 22:19:31,385 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,386 INFO L82 PathProgramCache]: Analyzing trace with hash -260829075, now seen corresponding path program 1 times [2020-10-15 22:19:31,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211261054] [2020-10-15 22:19:31,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:31,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:31,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211261054] [2020-10-15 22:19:31,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:31,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:31,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697938424] [2020-10-15 22:19:31,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:31,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:31,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:31,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:31,427 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-10-15 22:19:31,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:31,524 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-10-15 22:19:31,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:31,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:31,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:31,548 INFO L225 Difference]: With dead ends: 2905 [2020-10-15 22:19:31,548 INFO L226 Difference]: Without dead ends: 2899 [2020-10-15 22:19:31,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-10-15 22:19:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-10-15 22:19:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-10-15 22:19:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-10-15 22:19:31,670 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-10-15 22:19:31,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:31,671 INFO L481 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-10-15 22:19:31,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-10-15 22:19:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:31,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,671 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:31,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 22:19:31,672 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1408743431, now seen corresponding path program 1 times [2020-10-15 22:19:31,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240513789] [2020-10-15 22:19:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:31,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:31,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240513789] [2020-10-15 22:19:31,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:31,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:31,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018918722] [2020-10-15 22:19:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:31,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:31,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:31,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:31,714 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-10-15 22:19:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:31,801 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-10-15 22:19:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:31,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:31,837 INFO L225 Difference]: With dead ends: 3204 [2020-10-15 22:19:31,838 INFO L226 Difference]: Without dead ends: 3194 [2020-10-15 22:19:31,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:31,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-10-15 22:19:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-10-15 22:19:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-10-15 22:19:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-10-15 22:19:31,955 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-10-15 22:19:31,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:31,957 INFO L481 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-10-15 22:19:31,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-10-15 22:19:31,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:31,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:31,958 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:31,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 22:19:31,959 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:31,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1555768808, now seen corresponding path program 1 times [2020-10-15 22:19:31,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:31,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111367602] [2020-10-15 22:19:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:32,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111367602] [2020-10-15 22:19:32,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496975862] [2020-10-15 22:19:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:32,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:32,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:32,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:32,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203818389] [2020-10-15 22:19:32,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:32,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:32,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:32,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:32,104 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 9 states. [2020-10-15 22:19:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:32,355 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-10-15 22:19:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:32,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:32,377 INFO L225 Difference]: With dead ends: 4556 [2020-10-15 22:19:32,378 INFO L226 Difference]: Without dead ends: 4546 [2020-10-15 22:19:32,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-10-15 22:19:32,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-10-15 22:19:32,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-10-15 22:19:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-10-15 22:19:32,500 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-10-15 22:19:32,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:32,500 INFO L481 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-10-15 22:19:32,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-10-15 22:19:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:32,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:32,501 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:32,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-10-15 22:19:32,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash -887756896, now seen corresponding path program 2 times [2020-10-15 22:19:32,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:32,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908802347] [2020-10-15 22:19:32,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:32,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908802347] [2020-10-15 22:19:32,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:32,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:32,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397543957] [2020-10-15 22:19:32,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:32,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:32,763 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-10-15 22:19:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,033 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-10-15 22:19:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:33,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,053 INFO L225 Difference]: With dead ends: 4612 [2020-10-15 22:19:33,053 INFO L226 Difference]: Without dead ends: 4601 [2020-10-15 22:19:33,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-10-15 22:19:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-10-15 22:19:33,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-10-15 22:19:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-10-15 22:19:33,167 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-10-15 22:19:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:33,167 INFO L481 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-10-15 22:19:33,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-10-15 22:19:33,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:33,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:33,169 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:33,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 22:19:33,169 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:33,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:33,170 INFO L82 PathProgramCache]: Analyzing trace with hash 695111130, now seen corresponding path program 1 times [2020-10-15 22:19:33,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:33,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083616257] [2020-10-15 22:19:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:33,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083616257] [2020-10-15 22:19:33,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:33,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:33,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073350014] [2020-10-15 22:19:33,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:33,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:33,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:33,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:33,235 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-10-15 22:19:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,319 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-10-15 22:19:33,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:33,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,332 INFO L225 Difference]: With dead ends: 3265 [2020-10-15 22:19:33,333 INFO L226 Difference]: Without dead ends: 3250 [2020-10-15 22:19:33,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-10-15 22:19:33,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-10-15 22:19:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-10-15 22:19:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-10-15 22:19:33,421 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-10-15 22:19:33,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:33,422 INFO L481 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-10-15 22:19:33,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-10-15 22:19:33,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:33,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:33,423 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:33,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 22:19:33,424 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:33,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:33,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1754455113, now seen corresponding path program 1 times [2020-10-15 22:19:33,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:33,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785133544] [2020-10-15 22:19:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:33,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785133544] [2020-10-15 22:19:33,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317418009] [2020-10-15 22:19:33,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:33,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:33,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:33,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:33,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:33,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075587357] [2020-10-15 22:19:33,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:33,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:33,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:33,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:33,581 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 9 states. [2020-10-15 22:19:33,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:33,805 INFO L93 Difference]: Finished difference Result 4825 states and 15986 transitions. [2020-10-15 22:19:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:33,805 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:33,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:33,822 INFO L225 Difference]: With dead ends: 4825 [2020-10-15 22:19:33,822 INFO L226 Difference]: Without dead ends: 4813 [2020-10-15 22:19:33,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2020-10-15 22:19:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 2305. [2020-10-15 22:19:33,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-10-15 22:19:33,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-10-15 22:19:33,930 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-10-15 22:19:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:33,930 INFO L481 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-10-15 22:19:33,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:33,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-10-15 22:19:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:33,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:33,932 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:34,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:34,147 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:34,147 INFO L82 PathProgramCache]: Analyzing trace with hash -131464925, now seen corresponding path program 1 times [2020-10-15 22:19:34,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:34,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130810182] [2020-10-15 22:19:34,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:34,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130810182] [2020-10-15 22:19:34,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816935516] [2020-10-15 22:19:34,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:34,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:34,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:34,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:34,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:34,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969924377] [2020-10-15 22:19:34,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:34,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:34,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:34,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:34,289 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 9 states. [2020-10-15 22:19:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:34,528 INFO L93 Difference]: Finished difference Result 4942 states and 16410 transitions. [2020-10-15 22:19:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:34,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:34,544 INFO L225 Difference]: With dead ends: 4942 [2020-10-15 22:19:34,544 INFO L226 Difference]: Without dead ends: 4925 [2020-10-15 22:19:34,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2020-10-15 22:19:34,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 2299. [2020-10-15 22:19:34,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-10-15 22:19:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-10-15 22:19:34,726 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-10-15 22:19:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:34,728 INFO L481 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-10-15 22:19:34,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-10-15 22:19:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:34,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:34,730 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:34,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:34,944 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:34,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:34,944 INFO L82 PathProgramCache]: Analyzing trace with hash -2013120191, now seen corresponding path program 2 times [2020-10-15 22:19:34,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:34,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962449469] [2020-10-15 22:19:34,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:34,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:34,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962449469] [2020-10-15 22:19:34,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:34,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:34,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863191345] [2020-10-15 22:19:34,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:34,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:34,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:34,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:34,985 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 7 states. [2020-10-15 22:19:35,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:35,194 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-10-15 22:19:35,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:35,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:35,205 INFO L225 Difference]: With dead ends: 4934 [2020-10-15 22:19:35,205 INFO L226 Difference]: Without dead ends: 4917 [2020-10-15 22:19:35,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-10-15 22:19:35,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-10-15 22:19:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-10-15 22:19:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-10-15 22:19:35,311 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-10-15 22:19:35,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:35,311 INFO L481 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-10-15 22:19:35,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-10-15 22:19:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:35,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:35,313 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:35,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 22:19:35,313 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2013113743, now seen corresponding path program 2 times [2020-10-15 22:19:35,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:35,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104847523] [2020-10-15 22:19:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:35,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:35,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104847523] [2020-10-15 22:19:35,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:35,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:35,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068590113] [2020-10-15 22:19:35,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:35,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:35,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:35,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:35,363 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 7 states. [2020-10-15 22:19:35,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:35,563 INFO L93 Difference]: Finished difference Result 4774 states and 15828 transitions. [2020-10-15 22:19:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:35,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:35,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:35,571 INFO L225 Difference]: With dead ends: 4774 [2020-10-15 22:19:35,571 INFO L226 Difference]: Without dead ends: 4757 [2020-10-15 22:19:35,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:35,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-10-15 22:19:35,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2150. [2020-10-15 22:19:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-10-15 22:19:35,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-10-15 22:19:35,652 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-10-15 22:19:35,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:35,653 INFO L481 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-10-15 22:19:35,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:35,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-10-15 22:19:35,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:35,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:35,655 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:35,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 22:19:35,655 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:35,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:35,655 INFO L82 PathProgramCache]: Analyzing trace with hash -9146414, now seen corresponding path program 1 times [2020-10-15 22:19:35,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:35,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535519743] [2020-10-15 22:19:35,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:35,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535519743] [2020-10-15 22:19:35,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228942985] [2020-10-15 22:19:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:35,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:35,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:35,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:35,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:35,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450324494] [2020-10-15 22:19:35,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:35,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:35,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:35,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:35,825 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 11 states. [2020-10-15 22:19:36,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:36,380 INFO L93 Difference]: Finished difference Result 6025 states and 18746 transitions. [2020-10-15 22:19:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:36,380 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:36,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:36,389 INFO L225 Difference]: With dead ends: 6025 [2020-10-15 22:19:36,389 INFO L226 Difference]: Without dead ends: 6017 [2020-10-15 22:19:36,389 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:36,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2020-10-15 22:19:36,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 2117. [2020-10-15 22:19:36,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-10-15 22:19:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-10-15 22:19:36,515 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-10-15 22:19:36,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:36,515 INFO L481 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-10-15 22:19:36,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:36,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-10-15 22:19:36,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:36,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:36,517 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:36,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-15 22:19:36,723 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:36,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:36,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1890795232, now seen corresponding path program 2 times [2020-10-15 22:19:36,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:36,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732084438] [2020-10-15 22:19:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:36,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:36,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732084438] [2020-10-15 22:19:36,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105690688] [2020-10-15 22:19:36,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:36,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:19:36,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:36,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:36,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:36,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:36,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:36,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342799607] [2020-10-15 22:19:36,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:36,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:36,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:36,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:36,885 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 11 states. [2020-10-15 22:19:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:37,474 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2020-10-15 22:19:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:37,475 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:37,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:37,484 INFO L225 Difference]: With dead ends: 5914 [2020-10-15 22:19:37,484 INFO L226 Difference]: Without dead ends: 5903 [2020-10-15 22:19:37,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:37,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2020-10-15 22:19:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2020-10-15 22:19:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-10-15 22:19:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-10-15 22:19:37,568 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-10-15 22:19:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:37,568 INFO L481 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-10-15 22:19:37,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:37,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-10-15 22:19:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:37,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:37,571 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:37,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:37,784 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:37,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:37,785 INFO L82 PathProgramCache]: Analyzing trace with hash 180724060, now seen corresponding path program 3 times [2020-10-15 22:19:37,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:37,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637031430] [2020-10-15 22:19:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:37,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:37,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637031430] [2020-10-15 22:19:37,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827806298] [2020-10-15 22:19:37,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:37,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:19:37,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:37,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:37,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:37,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:37,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:37,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845753951] [2020-10-15 22:19:37,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:37,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:37,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:37,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:37,949 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 11 states. [2020-10-15 22:19:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:38,448 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2020-10-15 22:19:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:38,448 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:38,459 INFO L225 Difference]: With dead ends: 5907 [2020-10-15 22:19:38,459 INFO L226 Difference]: Without dead ends: 5899 [2020-10-15 22:19:38,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2020-10-15 22:19:38,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2020-10-15 22:19:38,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-10-15 22:19:38,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-10-15 22:19:38,550 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-10-15 22:19:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:38,550 INFO L481 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-10-15 22:19:38,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-10-15 22:19:38,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:38,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:38,552 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:38,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-15 22:19:38,766 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:38,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:38,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1783759286, now seen corresponding path program 4 times [2020-10-15 22:19:38,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:38,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948602631] [2020-10-15 22:19:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:38,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948602631] [2020-10-15 22:19:38,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093099980] [2020-10-15 22:19:38,819 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:38,899 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:19:38,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:38,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:38,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:19:38,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:38,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:38,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429900343] [2020-10-15 22:19:38,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:38,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:38,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:38,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:38,997 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 11 states. [2020-10-15 22:19:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:39,559 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2020-10-15 22:19:39,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:39,559 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:39,572 INFO L225 Difference]: With dead ends: 5835 [2020-10-15 22:19:39,572 INFO L226 Difference]: Without dead ends: 5824 [2020-10-15 22:19:39,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2020-10-15 22:19:39,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2020-10-15 22:19:39,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-10-15 22:19:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-10-15 22:19:39,669 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-10-15 22:19:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:39,669 INFO L481 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-10-15 22:19:39,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-10-15 22:19:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:39,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:39,678 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:39,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-10-15 22:19:39,892 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:39,892 INFO L82 PathProgramCache]: Analyzing trace with hash -964809789, now seen corresponding path program 1 times [2020-10-15 22:19:39,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:39,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983528844] [2020-10-15 22:19:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:39,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:19:39,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983528844] [2020-10-15 22:19:39,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:39,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:39,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878921415] [2020-10-15 22:19:39,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:39,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:39,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:39,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:39,927 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-10-15 22:19:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:39,998 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2020-10-15 22:19:39,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:39,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:19:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:40,005 INFO L225 Difference]: With dead ends: 3016 [2020-10-15 22:19:40,005 INFO L226 Difference]: Without dead ends: 3000 [2020-10-15 22:19:40,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-10-15 22:19:40,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2020-10-15 22:19:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-10-15 22:19:40,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-10-15 22:19:40,060 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-10-15 22:19:40,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:40,060 INFO L481 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-10-15 22:19:40,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:40,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-10-15 22:19:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:40,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:40,062 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:40,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 22:19:40,062 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1873231848, now seen corresponding path program 5 times [2020-10-15 22:19:40,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:40,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908614318] [2020-10-15 22:19:40,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:40,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908614318] [2020-10-15 22:19:40,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:40,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:40,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56133414] [2020-10-15 22:19:40,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:40,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:40,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:40,124 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2020-10-15 22:19:40,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:40,633 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2020-10-15 22:19:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:40,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:19:40,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:40,646 INFO L225 Difference]: With dead ends: 6150 [2020-10-15 22:19:40,646 INFO L226 Difference]: Without dead ends: 6139 [2020-10-15 22:19:40,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:19:40,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-10-15 22:19:40,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2020-10-15 22:19:40,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-10-15 22:19:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-10-15 22:19:40,737 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-10-15 22:19:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:40,737 INFO L481 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-10-15 22:19:40,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-10-15 22:19:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:40,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:40,739 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:40,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 22:19:40,739 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:40,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1867041768, now seen corresponding path program 6 times [2020-10-15 22:19:40,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:40,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965032372] [2020-10-15 22:19:40,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:40,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965032372] [2020-10-15 22:19:40,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:40,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:40,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187562092] [2020-10-15 22:19:40,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:40,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:40,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:40,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:40,798 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-10-15 22:19:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:41,349 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-10-15 22:19:41,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:41,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:19:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:41,358 INFO L225 Difference]: With dead ends: 6017 [2020-10-15 22:19:41,358 INFO L226 Difference]: Without dead ends: 6002 [2020-10-15 22:19:41,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:19:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-10-15 22:19:41,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-10-15 22:19:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-10-15 22:19:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-10-15 22:19:41,445 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-10-15 22:19:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:41,445 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-10-15 22:19:41,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-10-15 22:19:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-15 22:19:41,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:41,448 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:41,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-15 22:19:41,448 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 22:19:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:41,448 INFO L82 PathProgramCache]: Analyzing trace with hash 150840888, now seen corresponding path program 1 times [2020-10-15 22:19:41,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:41,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164545744] [2020-10-15 22:19:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:41,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:41,463 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:41,469 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:41,469 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:41,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 22:19:41,470 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:41,470 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 22:19:41,483 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,484 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,485 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,486 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,489 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,493 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,494 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,495 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,496 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,497 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,498 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,503 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,503 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,504 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,504 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,506 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,506 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:41,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-15 22:19:41,519 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:41,519 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:41,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:41,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:41,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:41,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:41,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:41,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:41,521 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:41,522 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:41,522 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:41,522 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 123 transitions, 336 flow [2020-10-15 22:19:41,543 INFO L129 PetriNetUnfolder]: 7/149 cut-off events. [2020-10-15 22:19:41,543 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 22:19:41,545 INFO L80 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 149 events. 7/149 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 256 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 176. Up to 12 conditions per place. [2020-10-15 22:19:41,550 INFO L117 LiptonReduction]: Number of co-enabled transitions 2860 [2020-10-15 22:19:43,201 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:19:43,272 INFO L132 LiptonReduction]: Checked pairs total: 4168 [2020-10-15 22:19:43,272 INFO L134 LiptonReduction]: Total number of compositions: 121 [2020-10-15 22:19:43,273 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-10-15 22:19:43,711 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-10-15 22:19:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-10-15 22:19:43,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:19:43,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:43,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:19:43,712 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:43,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1011964, now seen corresponding path program 1 times [2020-10-15 22:19:43,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:43,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381592903] [2020-10-15 22:19:43,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:43,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381592903] [2020-10-15 22:19:43,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:43,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:19:43,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342599544] [2020-10-15 22:19:43,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:43,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:43,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:43,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:43,744 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-10-15 22:19:43,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:43,806 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-10-15 22:19:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:43,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:19:43,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:43,824 INFO L225 Difference]: With dead ends: 5844 [2020-10-15 22:19:43,825 INFO L226 Difference]: Without dead ends: 5479 [2020-10-15 22:19:43,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:43,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-10-15 22:19:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-10-15 22:19:43,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-10-15 22:19:43,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-10-15 22:19:43,986 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-10-15 22:19:43,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:43,987 INFO L481 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-10-15 22:19:43,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-10-15 22:19:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:43,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:43,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:43,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 22:19:43,987 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:43,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:43,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1084774388, now seen corresponding path program 1 times [2020-10-15 22:19:43,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:43,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696808641] [2020-10-15 22:19:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:44,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:44,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696808641] [2020-10-15 22:19:44,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:44,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:44,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713896603] [2020-10-15 22:19:44,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:44,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:44,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:44,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:44,023 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-10-15 22:19:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:44,133 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-10-15 22:19:44,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:44,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:19:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:44,154 INFO L225 Difference]: With dead ends: 9673 [2020-10-15 22:19:44,155 INFO L226 Difference]: Without dead ends: 9666 [2020-10-15 22:19:44,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-10-15 22:19:44,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-10-15 22:19:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-10-15 22:19:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-10-15 22:19:44,353 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-10-15 22:19:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:44,354 INFO L481 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-10-15 22:19:44,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-10-15 22:19:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:19:44,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:44,354 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:44,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 22:19:44,354 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:44,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2112403116, now seen corresponding path program 1 times [2020-10-15 22:19:44,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:44,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183974839] [2020-10-15 22:19:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:44,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183974839] [2020-10-15 22:19:44,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:44,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:44,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872214155] [2020-10-15 22:19:44,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:44,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:44,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:44,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:44,383 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-10-15 22:19:44,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:44,508 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-10-15 22:19:44,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:44,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:19:44,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:44,533 INFO L225 Difference]: With dead ends: 11081 [2020-10-15 22:19:44,533 INFO L226 Difference]: Without dead ends: 11068 [2020-10-15 22:19:44,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:44,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-10-15 22:19:44,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-10-15 22:19:44,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-10-15 22:19:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-10-15 22:19:44,941 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-10-15 22:19:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:44,941 INFO L481 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-10-15 22:19:44,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-10-15 22:19:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:44,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:44,942 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:44,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 22:19:44,942 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:44,942 INFO L82 PathProgramCache]: Analyzing trace with hash -28983895, now seen corresponding path program 1 times [2020-10-15 22:19:44,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:44,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099962264] [2020-10-15 22:19:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:44,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099962264] [2020-10-15 22:19:44,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254583297] [2020-10-15 22:19:44,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:45,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:45,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:45,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:45,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:45,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513824619] [2020-10-15 22:19:45,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:45,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:45,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:45,077 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 9 states. [2020-10-15 22:19:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:45,342 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-10-15 22:19:45,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:45,342 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:19:45,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:45,378 INFO L225 Difference]: With dead ends: 16749 [2020-10-15 22:19:45,379 INFO L226 Difference]: Without dead ends: 16736 [2020-10-15 22:19:45,379 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:45,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-10-15 22:19:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-10-15 22:19:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-10-15 22:19:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-10-15 22:19:45,663 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-10-15 22:19:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:45,664 INFO L481 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-10-15 22:19:45,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-10-15 22:19:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:19:45,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:45,665 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:45,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:45,866 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:45,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:45,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1500121559, now seen corresponding path program 2 times [2020-10-15 22:19:45,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:45,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457719020] [2020-10-15 22:19:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:45,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457719020] [2020-10-15 22:19:45,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:45,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:45,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850295427] [2020-10-15 22:19:45,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:45,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:45,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:45,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:45,904 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-10-15 22:19:46,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:46,151 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-10-15 22:19:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:46,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:19:46,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:46,188 INFO L225 Difference]: With dead ends: 17085 [2020-10-15 22:19:46,188 INFO L226 Difference]: Without dead ends: 17071 [2020-10-15 22:19:46,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-10-15 22:19:46,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-10-15 22:19:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-10-15 22:19:47,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-10-15 22:19:47,407 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-10-15 22:19:47,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:47,407 INFO L481 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-10-15 22:19:47,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:47,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-10-15 22:19:47,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:19:47,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:47,408 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:47,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 22:19:47,408 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:47,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1891696605, now seen corresponding path program 1 times [2020-10-15 22:19:47,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:47,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128715081] [2020-10-15 22:19:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:47,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128715081] [2020-10-15 22:19:47,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:47,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:47,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242426529] [2020-10-15 22:19:47,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:47,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:47,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:47,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:47,439 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-10-15 22:19:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:47,550 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-10-15 22:19:47,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:47,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:19:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:47,579 INFO L225 Difference]: With dead ends: 12234 [2020-10-15 22:19:47,579 INFO L226 Difference]: Without dead ends: 12212 [2020-10-15 22:19:47,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-10-15 22:19:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-10-15 22:19:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-10-15 22:19:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-10-15 22:19:47,812 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-10-15 22:19:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:47,812 INFO L481 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-10-15 22:19:47,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-10-15 22:19:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:47,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:47,814 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:47,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 22:19:47,814 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:47,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:47,814 INFO L82 PathProgramCache]: Analyzing trace with hash -74039136, now seen corresponding path program 1 times [2020-10-15 22:19:47,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:47,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495690949] [2020-10-15 22:19:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:19:47,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495690949] [2020-10-15 22:19:47,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311955468] [2020-10-15 22:19:47,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:47,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:47,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:19:47,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:47,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:47,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992389521] [2020-10-15 22:19:47,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:47,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:47,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:47,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:47,953 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 9 states. [2020-10-15 22:19:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:48,222 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-10-15 22:19:48,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:48,223 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:48,265 INFO L225 Difference]: With dead ends: 19016 [2020-10-15 22:19:48,265 INFO L226 Difference]: Without dead ends: 18998 [2020-10-15 22:19:48,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-10-15 22:19:48,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-10-15 22:19:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-10-15 22:19:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-10-15 22:19:48,569 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-10-15 22:19:48,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:48,569 INFO L481 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-10-15 22:19:48,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-10-15 22:19:48,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:48,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:48,570 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:48,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-10-15 22:19:48,771 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:48,772 INFO L82 PathProgramCache]: Analyzing trace with hash -274460668, now seen corresponding path program 1 times [2020-10-15 22:19:48,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:48,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965642692] [2020-10-15 22:19:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:48,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965642692] [2020-10-15 22:19:48,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521186026] [2020-10-15 22:19:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:49,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:49,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:49,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:49,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:49,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:19:49,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420139724] [2020-10-15 22:19:49,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:49,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:49,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:49,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:49,052 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 9 states. [2020-10-15 22:19:49,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:49,381 INFO L93 Difference]: Finished difference Result 19670 states and 79028 transitions. [2020-10-15 22:19:49,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:49,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:19:49,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:49,459 INFO L225 Difference]: With dead ends: 19670 [2020-10-15 22:19:49,459 INFO L226 Difference]: Without dead ends: 19645 [2020-10-15 22:19:49,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:19:49,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19645 states. [2020-10-15 22:19:49,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19645 to 8480. [2020-10-15 22:19:49,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-10-15 22:19:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-10-15 22:19:49,976 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-10-15 22:19:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:49,976 INFO L481 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-10-15 22:19:49,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:49,976 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-10-15 22:19:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:49,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:49,977 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:50,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-10-15 22:19:50,178 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:50,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1149256224, now seen corresponding path program 2 times [2020-10-15 22:19:50,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:50,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627290605] [2020-10-15 22:19:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:50,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:50,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627290605] [2020-10-15 22:19:50,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:50,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:50,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631799827] [2020-10-15 22:19:50,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:50,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:50,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:50,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:50,214 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-10-15 22:19:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:50,470 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-10-15 22:19:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:50,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:50,516 INFO L225 Difference]: With dead ends: 19852 [2020-10-15 22:19:50,516 INFO L226 Difference]: Without dead ends: 19827 [2020-10-15 22:19:50,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-10-15 22:19:50,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-10-15 22:19:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-10-15 22:19:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-10-15 22:19:50,857 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-10-15 22:19:50,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:50,858 INFO L481 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-10-15 22:19:50,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:50,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-10-15 22:19:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:19:50,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:50,859 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:50,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-15 22:19:50,859 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:50,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1149271290, now seen corresponding path program 2 times [2020-10-15 22:19:50,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:50,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147709772] [2020-10-15 22:19:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:50,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147709772] [2020-10-15 22:19:50,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:50,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:19:50,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927527697] [2020-10-15 22:19:50,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:50,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:50,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:50,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:50,907 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-10-15 22:19:51,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:51,165 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-10-15 22:19:51,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:19:51,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:19:51,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:51,344 INFO L225 Difference]: With dead ends: 19555 [2020-10-15 22:19:51,344 INFO L226 Difference]: Without dead ends: 19530 [2020-10-15 22:19:51,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:19:51,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-10-15 22:19:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-10-15 22:19:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-10-15 22:19:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-10-15 22:19:51,649 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-10-15 22:19:51,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:51,649 INFO L481 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-10-15 22:19:51,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:51,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-10-15 22:19:51,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:51,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:51,651 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:51,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-15 22:19:51,651 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:51,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:51,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1557322431, now seen corresponding path program 1 times [2020-10-15 22:19:51,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:51,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356843470] [2020-10-15 22:19:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:51,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356843470] [2020-10-15 22:19:51,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596980483] [2020-10-15 22:19:51,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:51,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:51,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:51,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:51,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:51,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611998187] [2020-10-15 22:19:51,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:51,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:51,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:51,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:51,806 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 11 states. [2020-10-15 22:19:52,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:52,459 INFO L93 Difference]: Finished difference Result 26969 states and 101544 transitions. [2020-10-15 22:19:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:52,459 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:52,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:52,518 INFO L225 Difference]: With dead ends: 26969 [2020-10-15 22:19:52,518 INFO L226 Difference]: Without dead ends: 26957 [2020-10-15 22:19:52,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:52,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2020-10-15 22:19:52,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 8204. [2020-10-15 22:19:52,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2020-10-15 22:19:52,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 37628 transitions. [2020-10-15 22:19:52,891 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 37628 transitions. Word has length 21 [2020-10-15 22:19:52,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:52,892 INFO L481 AbstractCegarLoop]: Abstraction has 8204 states and 37628 transitions. [2020-10-15 22:19:52,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:52,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 37628 transitions. [2020-10-15 22:19:52,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:52,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:52,893 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:53,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:53,093 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:53,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:53,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1862834243, now seen corresponding path program 2 times [2020-10-15 22:19:53,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:53,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102466912] [2020-10-15 22:19:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:19:53,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102466912] [2020-10-15 22:19:53,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743622292] [2020-10-15 22:19:53,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:53,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:19:53,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:53,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:53,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:19:53,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:53,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:53,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459035975] [2020-10-15 22:19:53,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:53,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:53,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:53,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:53,267 INFO L87 Difference]: Start difference. First operand 8204 states and 37628 transitions. Second operand 11 states. [2020-10-15 22:19:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:54,054 INFO L93 Difference]: Finished difference Result 26661 states and 100277 transitions. [2020-10-15 22:19:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:54,055 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:54,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:54,113 INFO L225 Difference]: With dead ends: 26661 [2020-10-15 22:19:54,114 INFO L226 Difference]: Without dead ends: 26645 [2020-10-15 22:19:54,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:54,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26645 states. [2020-10-15 22:19:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26645 to 8091. [2020-10-15 22:19:54,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8091 states. [2020-10-15 22:19:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 37076 transitions. [2020-10-15 22:19:54,478 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 37076 transitions. Word has length 21 [2020-10-15 22:19:54,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:54,478 INFO L481 AbstractCegarLoop]: Abstraction has 8091 states and 37076 transitions. [2020-10-15 22:19:54,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:54,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 37076 transitions. [2020-10-15 22:19:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:54,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:54,479 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:54,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-10-15 22:19:54,680 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:54,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:54,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1769991039, now seen corresponding path program 3 times [2020-10-15 22:19:54,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:54,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538178687] [2020-10-15 22:19:54,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:54,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538178687] [2020-10-15 22:19:54,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723734451] [2020-10-15 22:19:54,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:54,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:19:54,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:54,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:54,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:54,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:54,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:54,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821584811] [2020-10-15 22:19:54,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:54,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:54,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:54,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:54,830 INFO L87 Difference]: Start difference. First operand 8091 states and 37076 transitions. Second operand 11 states. [2020-10-15 22:19:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:55,484 INFO L93 Difference]: Finished difference Result 26686 states and 100402 transitions. [2020-10-15 22:19:55,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:55,484 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:55,547 INFO L225 Difference]: With dead ends: 26686 [2020-10-15 22:19:55,547 INFO L226 Difference]: Without dead ends: 26674 [2020-10-15 22:19:55,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:55,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2020-10-15 22:19:55,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 7861. [2020-10-15 22:19:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-10-15 22:19:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-10-15 22:19:55,921 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-10-15 22:19:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:55,921 INFO L481 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-10-15 22:19:55,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:55,921 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-10-15 22:19:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:55,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:55,922 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:56,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:56,123 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:56,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1763681919, now seen corresponding path program 4 times [2020-10-15 22:19:56,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:56,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557838124] [2020-10-15 22:19:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:56,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557838124] [2020-10-15 22:19:56,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117733271] [2020-10-15 22:19:56,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:56,259 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:19:56,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:56,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:56,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:56,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:56,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:19:56,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395558755] [2020-10-15 22:19:56,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:19:56,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:56,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:19:56,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:19:56,283 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 11 states. [2020-10-15 22:19:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:56,984 INFO L93 Difference]: Finished difference Result 26489 states and 99650 transitions. [2020-10-15 22:19:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:56,984 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:19:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:57,048 INFO L225 Difference]: With dead ends: 26489 [2020-10-15 22:19:57,048 INFO L226 Difference]: Without dead ends: 26473 [2020-10-15 22:19:57,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:19:57,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26473 states. [2020-10-15 22:19:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26473 to 7748. [2020-10-15 22:19:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-10-15 22:19:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-10-15 22:19:57,423 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-10-15 22:19:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:57,423 INFO L481 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-10-15 22:19:57,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:19:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-10-15 22:19:57,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:57,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:57,425 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:57,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-10-15 22:19:57,639 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:57,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:57,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1774143127, now seen corresponding path program 1 times [2020-10-15 22:19:57,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:57,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030019190] [2020-10-15 22:19:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:57,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:19:57,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030019190] [2020-10-15 22:19:57,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:57,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:57,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847979159] [2020-10-15 22:19:57,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:57,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:57,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:57,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:57,667 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 5 states. [2020-10-15 22:19:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:57,796 INFO L93 Difference]: Finished difference Result 13251 states and 57501 transitions. [2020-10-15 22:19:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:57,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:19:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:57,839 INFO L225 Difference]: With dead ends: 13251 [2020-10-15 22:19:57,840 INFO L226 Difference]: Without dead ends: 13220 [2020-10-15 22:19:57,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13220 states. [2020-10-15 22:19:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13220 to 9255. [2020-10-15 22:19:58,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-10-15 22:19:58,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-10-15 22:19:58,144 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-10-15 22:19:58,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:58,145 INFO L481 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-10-15 22:19:58,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-10-15 22:19:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:58,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:58,146 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:58,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-15 22:19:58,146 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:58,146 INFO L82 PathProgramCache]: Analyzing trace with hash -628636285, now seen corresponding path program 5 times [2020-10-15 22:19:58,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:58,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90546465] [2020-10-15 22:19:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:58,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90546465] [2020-10-15 22:19:58,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:58,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:58,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121731689] [2020-10-15 22:19:58,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:58,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:58,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:58,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:58,204 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-10-15 22:19:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:58,946 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-10-15 22:19:58,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:19:58,947 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:19:58,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:59,059 INFO L225 Difference]: With dead ends: 29788 [2020-10-15 22:19:59,059 INFO L226 Difference]: Without dead ends: 29770 [2020-10-15 22:19:59,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:19:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-10-15 22:19:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-10-15 22:19:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-10-15 22:19:59,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-10-15 22:19:59,898 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-10-15 22:19:59,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:59,899 INFO L481 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-10-15 22:19:59,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:19:59,899 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-10-15 22:19:59,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:19:59,900 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:59,900 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:59,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-15 22:19:59,901 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:59,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:59,901 INFO L82 PathProgramCache]: Analyzing trace with hash -643099645, now seen corresponding path program 6 times [2020-10-15 22:19:59,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:59,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108191331] [2020-10-15 22:19:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:19:59,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108191331] [2020-10-15 22:19:59,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:59,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:19:59,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966108679] [2020-10-15 22:19:59,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:19:59,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:59,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:19:59,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:59,957 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-10-15 22:20:00,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:00,648 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-10-15 22:20:00,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:00,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:20:00,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:00,705 INFO L225 Difference]: With dead ends: 29379 [2020-10-15 22:20:00,706 INFO L226 Difference]: Without dead ends: 29356 [2020-10-15 22:20:00,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-10-15 22:20:01,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-10-15 22:20:01,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-10-15 22:20:01,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-10-15 22:20:01,133 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-10-15 22:20:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:01,133 INFO L481 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-10-15 22:20:01,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:01,133 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-10-15 22:20:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:01,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:01,135 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:01,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-15 22:20:01,135 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:01,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:01,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1599602836, now seen corresponding path program 1 times [2020-10-15 22:20:01,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:01,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694585958] [2020-10-15 22:20:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:01,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694585958] [2020-10-15 22:20:01,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546833108] [2020-10-15 22:20:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:01,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:01,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:01,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:01,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:01,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059388240] [2020-10-15 22:20:01,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:01,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:01,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:01,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:01,264 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 9 states. [2020-10-15 22:20:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:01,550 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-10-15 22:20:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:01,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:01,590 INFO L225 Difference]: With dead ends: 19727 [2020-10-15 22:20:01,591 INFO L226 Difference]: Without dead ends: 19703 [2020-10-15 22:20:01,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:20:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-10-15 22:20:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-10-15 22:20:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-10-15 22:20:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-10-15 22:20:01,914 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-10-15 22:20:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:01,914 INFO L481 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-10-15 22:20:01,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-10-15 22:20:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:01,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:01,917 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:02,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-10-15 22:20:02,118 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:02,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:02,119 INFO L82 PathProgramCache]: Analyzing trace with hash 72758744, now seen corresponding path program 1 times [2020-10-15 22:20:02,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:02,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081937558] [2020-10-15 22:20:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:02,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081937558] [2020-10-15 22:20:02,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33521748] [2020-10-15 22:20:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:02,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:02,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:02,271 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:02,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:02,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:02,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039060969] [2020-10-15 22:20:02,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:02,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:02,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:02,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:02,273 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 9 states. [2020-10-15 22:20:02,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:02,721 INFO L93 Difference]: Finished difference Result 20694 states and 84261 transitions. [2020-10-15 22:20:02,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:02,722 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:02,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:02,769 INFO L225 Difference]: With dead ends: 20694 [2020-10-15 22:20:02,769 INFO L226 Difference]: Without dead ends: 20666 [2020-10-15 22:20:02,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:20:02,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20666 states. [2020-10-15 22:20:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20666 to 9115. [2020-10-15 22:20:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-10-15 22:20:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-10-15 22:20:03,104 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-10-15 22:20:03,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:03,104 INFO L481 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-10-15 22:20:03,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-10-15 22:20:03,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:03,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:03,106 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:03,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:03,307 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:03,308 INFO L82 PathProgramCache]: Analyzing trace with hash -328675496, now seen corresponding path program 1 times [2020-10-15 22:20:03,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:03,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242266477] [2020-10-15 22:20:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:03,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242266477] [2020-10-15 22:20:03,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266822308] [2020-10-15 22:20:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:03,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:03,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:03,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:03,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:03,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220699128] [2020-10-15 22:20:03,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:03,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:03,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:03,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:03,448 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 9 states. [2020-10-15 22:20:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:03,745 INFO L93 Difference]: Finished difference Result 21396 states and 87360 transitions. [2020-10-15 22:20:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:03,746 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:20:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:03,790 INFO L225 Difference]: With dead ends: 21396 [2020-10-15 22:20:03,790 INFO L226 Difference]: Without dead ends: 21359 [2020-10-15 22:20:03,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:20:03,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21359 states. [2020-10-15 22:20:04,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21359 to 9320. [2020-10-15 22:20:04,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-10-15 22:20:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-10-15 22:20:04,123 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-10-15 22:20:04,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:04,123 INFO L481 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-10-15 22:20:04,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-10-15 22:20:04,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:04,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:04,126 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:04,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-10-15 22:20:04,326 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:04,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:04,327 INFO L82 PathProgramCache]: Analyzing trace with hash -150456492, now seen corresponding path program 2 times [2020-10-15 22:20:04,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:04,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425807582] [2020-10-15 22:20:04,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:04,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425807582] [2020-10-15 22:20:04,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:04,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:04,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670917644] [2020-10-15 22:20:04,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:04,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:04,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:04,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:04,360 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 7 states. [2020-10-15 22:20:04,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:04,644 INFO L93 Difference]: Finished difference Result 21489 states and 87752 transitions. [2020-10-15 22:20:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:04,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:04,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:04,693 INFO L225 Difference]: With dead ends: 21489 [2020-10-15 22:20:04,693 INFO L226 Difference]: Without dead ends: 21452 [2020-10-15 22:20:04,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:20:04,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21452 states. [2020-10-15 22:20:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21452 to 9401. [2020-10-15 22:20:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-10-15 22:20:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-10-15 22:20:05,044 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-10-15 22:20:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:05,044 INFO L481 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-10-15 22:20:05,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-10-15 22:20:05,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:05,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:05,046 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:05,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-15 22:20:05,047 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:05,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:05,047 INFO L82 PathProgramCache]: Analyzing trace with hash -150471558, now seen corresponding path program 2 times [2020-10-15 22:20:05,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:05,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783353040] [2020-10-15 22:20:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:05,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783353040] [2020-10-15 22:20:05,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:05,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:05,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10395608] [2020-10-15 22:20:05,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:05,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:05,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:05,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:05,080 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 7 states. [2020-10-15 22:20:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:05,365 INFO L93 Difference]: Finished difference Result 21218 states and 86469 transitions. [2020-10-15 22:20:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:05,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:05,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:05,415 INFO L225 Difference]: With dead ends: 21218 [2020-10-15 22:20:05,415 INFO L226 Difference]: Without dead ends: 21181 [2020-10-15 22:20:05,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:20:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21181 states. [2020-10-15 22:20:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21181 to 9396. [2020-10-15 22:20:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-10-15 22:20:05,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-10-15 22:20:05,902 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-10-15 22:20:05,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:05,902 INFO L481 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-10-15 22:20:05,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-10-15 22:20:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:20:05,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:05,904 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:05,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-15 22:20:05,904 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:05,904 INFO L82 PathProgramCache]: Analyzing trace with hash -150449920, now seen corresponding path program 2 times [2020-10-15 22:20:05,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:05,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673769586] [2020-10-15 22:20:05,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:05,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673769586] [2020-10-15 22:20:05,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:05,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:05,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095095073] [2020-10-15 22:20:05,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:05,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:05,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:05,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:05,944 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 7 states. [2020-10-15 22:20:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:06,233 INFO L93 Difference]: Finished difference Result 21047 states and 85702 transitions. [2020-10-15 22:20:06,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:06,234 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:20:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:06,282 INFO L225 Difference]: With dead ends: 21047 [2020-10-15 22:20:06,282 INFO L226 Difference]: Without dead ends: 21010 [2020-10-15 22:20:06,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:20:06,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21010 states. [2020-10-15 22:20:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21010 to 9426. [2020-10-15 22:20:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-10-15 22:20:06,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-10-15 22:20:06,617 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-10-15 22:20:06,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:06,617 INFO L481 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-10-15 22:20:06,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:06,617 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-10-15 22:20:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:06,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:06,620 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:06,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-15 22:20:06,620 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:06,620 INFO L82 PathProgramCache]: Analyzing trace with hash -156736363, now seen corresponding path program 1 times [2020-10-15 22:20:06,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:06,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339106466] [2020-10-15 22:20:06,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:06,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:20:06,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339106466] [2020-10-15 22:20:06,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301272271] [2020-10-15 22:20:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:06,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:06,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:20:06,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:06,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:06,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914831744] [2020-10-15 22:20:06,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:06,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:06,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:06,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:06,770 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 11 states. [2020-10-15 22:20:07,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:07,516 INFO L93 Difference]: Finished difference Result 30145 states and 115754 transitions. [2020-10-15 22:20:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:07,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:07,582 INFO L225 Difference]: With dead ends: 30145 [2020-10-15 22:20:07,582 INFO L226 Difference]: Without dead ends: 30125 [2020-10-15 22:20:07,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30125 states. [2020-10-15 22:20:07,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30125 to 9338. [2020-10-15 22:20:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2020-10-15 22:20:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 42582 transitions. [2020-10-15 22:20:08,003 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 42582 transitions. Word has length 25 [2020-10-15 22:20:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:08,003 INFO L481 AbstractCegarLoop]: Abstraction has 9338 states and 42582 transitions. [2020-10-15 22:20:08,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 42582 transitions. [2020-10-15 22:20:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:08,006 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:08,006 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:08,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-10-15 22:20:08,207 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:08,207 INFO L82 PathProgramCache]: Analyzing trace with hash -558170603, now seen corresponding path program 1 times [2020-10-15 22:20:08,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:08,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090590073] [2020-10-15 22:20:08,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:08,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090590073] [2020-10-15 22:20:08,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15204442] [2020-10-15 22:20:08,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:08,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:08,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:08,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:08,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:08,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:08,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688179432] [2020-10-15 22:20:08,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:08,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:08,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:08,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:08,357 INFO L87 Difference]: Start difference. First operand 9338 states and 42582 transitions. Second operand 11 states. [2020-10-15 22:20:09,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:09,053 INFO L93 Difference]: Finished difference Result 29696 states and 113916 transitions. [2020-10-15 22:20:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:09,054 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:09,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:09,129 INFO L225 Difference]: With dead ends: 29696 [2020-10-15 22:20:09,130 INFO L226 Difference]: Without dead ends: 29676 [2020-10-15 22:20:09,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29676 states. [2020-10-15 22:20:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29676 to 9291. [2020-10-15 22:20:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-10-15 22:20:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 42295 transitions. [2020-10-15 22:20:09,740 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 42295 transitions. Word has length 25 [2020-10-15 22:20:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:09,740 INFO L481 AbstractCegarLoop]: Abstraction has 9291 states and 42295 transitions. [2020-10-15 22:20:09,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:09,740 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 42295 transitions. [2020-10-15 22:20:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:09,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:09,743 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:09,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-10-15 22:20:09,944 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:09,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:09,945 INFO L82 PathProgramCache]: Analyzing trace with hash -379966665, now seen corresponding path program 2 times [2020-10-15 22:20:09,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:09,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880383346] [2020-10-15 22:20:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:09,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880383346] [2020-10-15 22:20:09,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398021358] [2020-10-15 22:20:09,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:10,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:10,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:10,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:10,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:10,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:10,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:10,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901169487] [2020-10-15 22:20:10,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:10,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:10,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:10,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:10,090 INFO L87 Difference]: Start difference. First operand 9291 states and 42295 transitions. Second operand 11 states. [2020-10-15 22:20:10,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:10,741 INFO L93 Difference]: Finished difference Result 29267 states and 112142 transitions. [2020-10-15 22:20:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:10,741 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:10,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:10,807 INFO L225 Difference]: With dead ends: 29267 [2020-10-15 22:20:10,807 INFO L226 Difference]: Without dead ends: 29245 [2020-10-15 22:20:10,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:10,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29245 states. [2020-10-15 22:20:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29245 to 9288. [2020-10-15 22:20:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9288 states. [2020-10-15 22:20:11,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 42242 transitions. [2020-10-15 22:20:11,249 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 42242 transitions. Word has length 25 [2020-10-15 22:20:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:11,249 INFO L481 AbstractCegarLoop]: Abstraction has 9288 states and 42242 transitions. [2020-10-15 22:20:11,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:11,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 42242 transitions. [2020-10-15 22:20:11,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:11,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:11,252 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:11,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-10-15 22:20:11,453 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:11,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash -379945027, now seen corresponding path program 2 times [2020-10-15 22:20:11,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:11,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700150102] [2020-10-15 22:20:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:11,502 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:11,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700150102] [2020-10-15 22:20:11,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410275014] [2020-10-15 22:20:11,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:11,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:11,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:11,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:11,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:20:11,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:11,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:11,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457177702] [2020-10-15 22:20:11,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:11,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:11,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:11,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:11,610 INFO L87 Difference]: Start difference. First operand 9288 states and 42242 transitions. Second operand 11 states. [2020-10-15 22:20:12,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:12,293 INFO L93 Difference]: Finished difference Result 28920 states and 110796 transitions. [2020-10-15 22:20:12,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:12,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:12,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:12,357 INFO L225 Difference]: With dead ends: 28920 [2020-10-15 22:20:12,358 INFO L226 Difference]: Without dead ends: 28898 [2020-10-15 22:20:12,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28898 states. [2020-10-15 22:20:12,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28898 to 9176. [2020-10-15 22:20:12,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9176 states. [2020-10-15 22:20:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 41695 transitions. [2020-10-15 22:20:12,782 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 41695 transitions. Word has length 25 [2020-10-15 22:20:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:12,782 INFO L481 AbstractCegarLoop]: Abstraction has 9176 states and 41695 transitions. [2020-10-15 22:20:12,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 41695 transitions. [2020-10-15 22:20:12,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:12,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:12,785 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:12,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:12,986 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:12,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:12,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1211690581, now seen corresponding path program 3 times [2020-10-15 22:20:12,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:12,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713669851] [2020-10-15 22:20:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:13,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:13,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713669851] [2020-10-15 22:20:13,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284872241] [2020-10-15 22:20:13,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:13,116 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 22:20:13,116 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:13,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:13,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:13,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:13,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:13,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36935736] [2020-10-15 22:20:13,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:13,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:13,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:13,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:13,143 INFO L87 Difference]: Start difference. First operand 9176 states and 41695 transitions. Second operand 11 states. [2020-10-15 22:20:13,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:13,801 INFO L93 Difference]: Finished difference Result 29038 states and 111216 transitions. [2020-10-15 22:20:13,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:13,801 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:13,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:13,867 INFO L225 Difference]: With dead ends: 29038 [2020-10-15 22:20:13,867 INFO L226 Difference]: Without dead ends: 29018 [2020-10-15 22:20:13,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29018 states. [2020-10-15 22:20:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29018 to 9000. [2020-10-15 22:20:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9000 states. [2020-10-15 22:20:14,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 40897 transitions. [2020-10-15 22:20:14,406 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 40897 transitions. Word has length 25 [2020-10-15 22:20:14,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:14,406 INFO L481 AbstractCegarLoop]: Abstraction has 9000 states and 40897 transitions. [2020-10-15 22:20:14,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:14,407 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 40897 transitions. [2020-10-15 22:20:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:14,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:14,409 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:14,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-10-15 22:20:14,610 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:14,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1201691221, now seen corresponding path program 4 times [2020-10-15 22:20:14,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:14,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432141142] [2020-10-15 22:20:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:14,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432141142] [2020-10-15 22:20:14,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121854108] [2020-10-15 22:20:14,659 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:14,734 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:14,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:14,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:14,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:14,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:14,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:14,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:14,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487457652] [2020-10-15 22:20:14,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:14,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:14,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:14,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:14,755 INFO L87 Difference]: Start difference. First operand 9000 states and 40897 transitions. Second operand 11 states. [2020-10-15 22:20:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:15,480 INFO L93 Difference]: Finished difference Result 29283 states and 112236 transitions. [2020-10-15 22:20:15,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:15,481 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:15,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:15,540 INFO L225 Difference]: With dead ends: 29283 [2020-10-15 22:20:15,541 INFO L226 Difference]: Without dead ends: 29261 [2020-10-15 22:20:15,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:15,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29261 states. [2020-10-15 22:20:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29261 to 8997. [2020-10-15 22:20:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8997 states. [2020-10-15 22:20:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 40842 transitions. [2020-10-15 22:20:15,958 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 40842 transitions. Word has length 25 [2020-10-15 22:20:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:15,958 INFO L481 AbstractCegarLoop]: Abstraction has 8997 states and 40842 transitions. [2020-10-15 22:20:15,958 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 40842 transitions. [2020-10-15 22:20:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:15,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:15,961 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:16,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:16,162 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:16,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:16,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1201697793, now seen corresponding path program 1 times [2020-10-15 22:20:16,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:16,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678294489] [2020-10-15 22:20:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:16,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678294489] [2020-10-15 22:20:16,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34881477] [2020-10-15 22:20:16,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:16,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:16,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:16,304 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:16,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:16,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:16,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889429483] [2020-10-15 22:20:16,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:16,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:16,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:16,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:16,306 INFO L87 Difference]: Start difference. First operand 8997 states and 40842 transitions. Second operand 11 states. [2020-10-15 22:20:17,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:17,028 INFO L93 Difference]: Finished difference Result 29105 states and 111801 transitions. [2020-10-15 22:20:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:17,028 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:17,091 INFO L225 Difference]: With dead ends: 29105 [2020-10-15 22:20:17,091 INFO L226 Difference]: Without dead ends: 29085 [2020-10-15 22:20:17,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2020-10-15 22:20:17,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 8955. [2020-10-15 22:20:17,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8955 states. [2020-10-15 22:20:17,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8955 states to 8955 states and 40593 transitions. [2020-10-15 22:20:17,518 INFO L78 Accepts]: Start accepts. Automaton has 8955 states and 40593 transitions. Word has length 25 [2020-10-15 22:20:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:17,518 INFO L481 AbstractCegarLoop]: Abstraction has 8955 states and 40593 transitions. [2020-10-15 22:20:17,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8955 states and 40593 transitions. [2020-10-15 22:20:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:17,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:17,522 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:17,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-10-15 22:20:17,723 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:17,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:17,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1218006273, now seen corresponding path program 2 times [2020-10-15 22:20:17,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:17,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793616924] [2020-10-15 22:20:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:17,771 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:17,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793616924] [2020-10-15 22:20:17,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54280708] [2020-10-15 22:20:17,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:17,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:17,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:17,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-15 22:20:17,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:17,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:17,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903915341] [2020-10-15 22:20:17,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:17,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:17,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:17,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:17,920 INFO L87 Difference]: Start difference. First operand 8955 states and 40593 transitions. Second operand 11 states. [2020-10-15 22:20:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:18,827 INFO L93 Difference]: Finished difference Result 28806 states and 110558 transitions. [2020-10-15 22:20:18,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:18,828 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:18,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:18,941 INFO L225 Difference]: With dead ends: 28806 [2020-10-15 22:20:18,941 INFO L226 Difference]: Without dead ends: 28779 [2020-10-15 22:20:18,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2020-10-15 22:20:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 8841. [2020-10-15 22:20:19,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8841 states. [2020-10-15 22:20:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 40062 transitions. [2020-10-15 22:20:19,609 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 40062 transitions. Word has length 25 [2020-10-15 22:20:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:19,610 INFO L481 AbstractCegarLoop]: Abstraction has 8841 states and 40062 transitions. [2020-10-15 22:20:19,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 40062 transitions. [2020-10-15 22:20:19,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:19,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:19,614 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:19,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:19,815 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:19,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:19,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1980442581, now seen corresponding path program 3 times [2020-10-15 22:20:19,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:19,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734892046] [2020-10-15 22:20:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:19,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734892046] [2020-10-15 22:20:19,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840059146] [2020-10-15 22:20:19,862 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:19,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:20:19,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:19,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:19,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:19,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:19,950 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:19,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850825256] [2020-10-15 22:20:19,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:19,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:19,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:19,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:19,951 INFO L87 Difference]: Start difference. First operand 8841 states and 40062 transitions. Second operand 11 states. [2020-10-15 22:20:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:20,652 INFO L93 Difference]: Finished difference Result 28636 states and 109852 transitions. [2020-10-15 22:20:20,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:20,653 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:20,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:20,710 INFO L225 Difference]: With dead ends: 28636 [2020-10-15 22:20:20,710 INFO L226 Difference]: Without dead ends: 28616 [2020-10-15 22:20:20,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2020-10-15 22:20:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 8702. [2020-10-15 22:20:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8702 states. [2020-10-15 22:20:21,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 39438 transitions. [2020-10-15 22:20:21,093 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 39438 transitions. Word has length 25 [2020-10-15 22:20:21,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:21,093 INFO L481 AbstractCegarLoop]: Abstraction has 8702 states and 39438 transitions. [2020-10-15 22:20:21,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 39438 transitions. [2020-10-15 22:20:21,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:21,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:21,096 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:21,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-10-15 22:20:21,297 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:21,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:21,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1965964155, now seen corresponding path program 3 times [2020-10-15 22:20:21,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:21,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475255093] [2020-10-15 22:20:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:21,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475255093] [2020-10-15 22:20:21,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118179093] [2020-10-15 22:20:21,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:21,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:20:21,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:21,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:21,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:21,471 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:21,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:21,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:21,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293714697] [2020-10-15 22:20:21,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:21,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:21,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:21,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:21,472 INFO L87 Difference]: Start difference. First operand 8702 states and 39438 transitions. Second operand 11 states. [2020-10-15 22:20:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:22,088 INFO L93 Difference]: Finished difference Result 28297 states and 108461 transitions. [2020-10-15 22:20:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:22,089 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:22,146 INFO L225 Difference]: With dead ends: 28297 [2020-10-15 22:20:22,146 INFO L226 Difference]: Without dead ends: 28277 [2020-10-15 22:20:22,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28277 states. [2020-10-15 22:20:22,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28277 to 8596. [2020-10-15 22:20:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8596 states. [2020-10-15 22:20:22,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 38978 transitions. [2020-10-15 22:20:22,529 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 38978 transitions. Word has length 25 [2020-10-15 22:20:22,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:22,529 INFO L481 AbstractCegarLoop]: Abstraction has 8596 states and 38978 transitions. [2020-10-15 22:20:22,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:22,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 38978 transitions. [2020-10-15 22:20:22,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:22,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:22,532 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:22,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:22,733 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:22,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1970443221, now seen corresponding path program 4 times [2020-10-15 22:20:22,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:22,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878592574] [2020-10-15 22:20:22,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:22,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878592574] [2020-10-15 22:20:22,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568154910] [2020-10-15 22:20:22,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:22,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:22,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:22,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:22,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:22,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:22,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:22,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107103686] [2020-10-15 22:20:22,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:22,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:22,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:22,882 INFO L87 Difference]: Start difference. First operand 8596 states and 38978 transitions. Second operand 11 states. [2020-10-15 22:20:23,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:23,519 INFO L93 Difference]: Finished difference Result 28565 states and 109596 transitions. [2020-10-15 22:20:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:23,520 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:23,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:23,579 INFO L225 Difference]: With dead ends: 28565 [2020-10-15 22:20:23,579 INFO L226 Difference]: Without dead ends: 28538 [2020-10-15 22:20:23,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28538 states. [2020-10-15 22:20:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28538 to 8563. [2020-10-15 22:20:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2020-10-15 22:20:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 38809 transitions. [2020-10-15 22:20:23,970 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 38809 transitions. Word has length 25 [2020-10-15 22:20:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:23,971 INFO L481 AbstractCegarLoop]: Abstraction has 8563 states and 38809 transitions. [2020-10-15 22:20:23,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 38809 transitions. [2020-10-15 22:20:23,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:23,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:23,974 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:24,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-10-15 22:20:24,174 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:24,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428155, now seen corresponding path program 4 times [2020-10-15 22:20:24,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:24,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868654480] [2020-10-15 22:20:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:24,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868654480] [2020-10-15 22:20:24,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439881266] [2020-10-15 22:20:24,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:24,422 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:20:24,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:24,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:24,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:20:24,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:24,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:20:24,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297654955] [2020-10-15 22:20:24,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:20:24,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:24,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:20:24,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:20:24,446 INFO L87 Difference]: Start difference. First operand 8563 states and 38809 transitions. Second operand 11 states. [2020-10-15 22:20:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:25,137 INFO L93 Difference]: Finished difference Result 28213 states and 108237 transitions. [2020-10-15 22:20:25,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:25,137 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:20:25,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:25,195 INFO L225 Difference]: With dead ends: 28213 [2020-10-15 22:20:25,195 INFO L226 Difference]: Without dead ends: 28186 [2020-10-15 22:20:25,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:20:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2020-10-15 22:20:25,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 8421. [2020-10-15 22:20:25,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8421 states. [2020-10-15 22:20:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8421 states to 8421 states and 38146 transitions. [2020-10-15 22:20:25,578 INFO L78 Accepts]: Start accepts. Automaton has 8421 states and 38146 transitions. Word has length 25 [2020-10-15 22:20:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:25,578 INFO L481 AbstractCegarLoop]: Abstraction has 8421 states and 38146 transitions. [2020-10-15 22:20:25,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:20:25,578 INFO L276 IsEmpty]: Start isEmpty. Operand 8421 states and 38146 transitions. [2020-10-15 22:20:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:25,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:25,581 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:25,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:25,782 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:25,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:25,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1943046054, now seen corresponding path program 1 times [2020-10-15 22:20:25,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:25,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106455205] [2020-10-15 22:20:25,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:20:25,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106455205] [2020-10-15 22:20:25,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:25,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:25,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833089826] [2020-10-15 22:20:25,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:25,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:25,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:25,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:25,807 INFO L87 Difference]: Start difference. First operand 8421 states and 38146 transitions. Second operand 5 states. [2020-10-15 22:20:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:25,963 INFO L93 Difference]: Finished difference Result 13647 states and 59401 transitions. [2020-10-15 22:20:25,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:25,964 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 22:20:25,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:26,021 INFO L225 Difference]: With dead ends: 13647 [2020-10-15 22:20:26,021 INFO L226 Difference]: Without dead ends: 13615 [2020-10-15 22:20:26,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2020-10-15 22:20:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 9928. [2020-10-15 22:20:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9928 states. [2020-10-15 22:20:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 44651 transitions. [2020-10-15 22:20:26,578 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 44651 transitions. Word has length 25 [2020-10-15 22:20:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:26,579 INFO L481 AbstractCegarLoop]: Abstraction has 9928 states and 44651 transitions. [2020-10-15 22:20:26,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:26,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 44651 transitions. [2020-10-15 22:20:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:26,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:26,586 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:26,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-10-15 22:20:26,586 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:26,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1440199159, now seen corresponding path program 5 times [2020-10-15 22:20:26,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:26,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322338336] [2020-10-15 22:20:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:26,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322338336] [2020-10-15 22:20:26,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:26,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:26,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381700182] [2020-10-15 22:20:26,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:26,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:26,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:26,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:26,680 INFO L87 Difference]: Start difference. First operand 9928 states and 44651 transitions. Second operand 9 states. [2020-10-15 22:20:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:27,423 INFO L93 Difference]: Finished difference Result 31816 states and 123346 transitions. [2020-10-15 22:20:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:27,424 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:27,492 INFO L225 Difference]: With dead ends: 31816 [2020-10-15 22:20:27,492 INFO L226 Difference]: Without dead ends: 31790 [2020-10-15 22:20:27,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31790 states. [2020-10-15 22:20:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31790 to 9766. [2020-10-15 22:20:27,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9766 states. [2020-10-15 22:20:27,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 43873 transitions. [2020-10-15 22:20:27,950 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 43873 transitions. Word has length 25 [2020-10-15 22:20:27,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:27,951 INFO L481 AbstractCegarLoop]: Abstraction has 9766 states and 43873 transitions. [2020-10-15 22:20:27,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:27,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 43873 transitions. [2020-10-15 22:20:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:27,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:27,954 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:27,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-10-15 22:20:27,954 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:27,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1440220797, now seen corresponding path program 5 times [2020-10-15 22:20:27,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:27,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498912536] [2020-10-15 22:20:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:27,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498912536] [2020-10-15 22:20:27,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:27,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:27,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259327446] [2020-10-15 22:20:28,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:28,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:28,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:28,000 INFO L87 Difference]: Start difference. First operand 9766 states and 43873 transitions. Second operand 9 states. [2020-10-15 22:20:28,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:28,634 INFO L93 Difference]: Finished difference Result 31277 states and 121098 transitions. [2020-10-15 22:20:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:28,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:28,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:28,699 INFO L225 Difference]: With dead ends: 31277 [2020-10-15 22:20:28,699 INFO L226 Difference]: Without dead ends: 31251 [2020-10-15 22:20:28,700 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2020-10-15 22:20:29,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 9592. [2020-10-15 22:20:29,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9592 states. [2020-10-15 22:20:29,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9592 states to 9592 states and 43051 transitions. [2020-10-15 22:20:29,144 INFO L78 Accepts]: Start accepts. Automaton has 9592 states and 43051 transitions. Word has length 25 [2020-10-15 22:20:29,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:29,145 INFO L481 AbstractCegarLoop]: Abstraction has 9592 states and 43051 transitions. [2020-10-15 22:20:29,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:29,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9592 states and 43051 transitions. [2020-10-15 22:20:29,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:29,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:29,148 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:29,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-10-15 22:20:29,148 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:29,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1425735799, now seen corresponding path program 6 times [2020-10-15 22:20:29,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:29,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463820939] [2020-10-15 22:20:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:29,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463820939] [2020-10-15 22:20:29,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:29,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:29,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962040840] [2020-10-15 22:20:29,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:29,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:29,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:29,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:29,202 INFO L87 Difference]: Start difference. First operand 9592 states and 43051 transitions. Second operand 9 states. [2020-10-15 22:20:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:29,844 INFO L93 Difference]: Finished difference Result 30952 states and 119650 transitions. [2020-10-15 22:20:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:29,844 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:30,058 INFO L225 Difference]: With dead ends: 30952 [2020-10-15 22:20:30,058 INFO L226 Difference]: Without dead ends: 30919 [2020-10-15 22:20:30,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:30,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30919 states. [2020-10-15 22:20:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30919 to 9246. [2020-10-15 22:20:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9246 states. [2020-10-15 22:20:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 41509 transitions. [2020-10-15 22:20:30,477 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 41509 transitions. Word has length 25 [2020-10-15 22:20:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:30,477 INFO L481 AbstractCegarLoop]: Abstraction has 9246 states and 41509 transitions. [2020-10-15 22:20:30,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:30,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 41509 transitions. [2020-10-15 22:20:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:30,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:30,480 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:30,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-10-15 22:20:30,481 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:30,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:30,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1425742371, now seen corresponding path program 5 times [2020-10-15 22:20:30,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:30,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034025570] [2020-10-15 22:20:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:30,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034025570] [2020-10-15 22:20:30,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:30,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:30,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809955541] [2020-10-15 22:20:30,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:30,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:30,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:30,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:30,537 INFO L87 Difference]: Start difference. First operand 9246 states and 41509 transitions. Second operand 9 states. [2020-10-15 22:20:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:31,240 INFO L93 Difference]: Finished difference Result 30541 states and 117947 transitions. [2020-10-15 22:20:31,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:31,241 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:31,304 INFO L225 Difference]: With dead ends: 30541 [2020-10-15 22:20:31,305 INFO L226 Difference]: Without dead ends: 30515 [2020-10-15 22:20:31,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30515 states. [2020-10-15 22:20:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30515 to 9136. [2020-10-15 22:20:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9136 states. [2020-10-15 22:20:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9136 states to 9136 states and 40999 transitions. [2020-10-15 22:20:31,730 INFO L78 Accepts]: Start accepts. Automaton has 9136 states and 40999 transitions. Word has length 25 [2020-10-15 22:20:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:31,730 INFO L481 AbstractCegarLoop]: Abstraction has 9136 states and 40999 transitions. [2020-10-15 22:20:31,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9136 states and 40999 transitions. [2020-10-15 22:20:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:31,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:31,733 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:31,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-10-15 22:20:31,733 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:31,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:31,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1446529917, now seen corresponding path program 6 times [2020-10-15 22:20:31,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:31,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169102922] [2020-10-15 22:20:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:31,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169102922] [2020-10-15 22:20:31,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:31,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:31,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300430539] [2020-10-15 22:20:31,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:31,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:31,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:31,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:31,794 INFO L87 Difference]: Start difference. First operand 9136 states and 40999 transitions. Second operand 9 states. [2020-10-15 22:20:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:32,704 INFO L93 Difference]: Finished difference Result 30263 states and 116773 transitions. [2020-10-15 22:20:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:32,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:32,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:32,796 INFO L225 Difference]: With dead ends: 30263 [2020-10-15 22:20:32,796 INFO L226 Difference]: Without dead ends: 30230 [2020-10-15 22:20:32,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:33,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2020-10-15 22:20:33,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 8877. [2020-10-15 22:20:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8877 states. [2020-10-15 22:20:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 39872 transitions. [2020-10-15 22:20:33,329 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 39872 transitions. Word has length 25 [2020-10-15 22:20:33,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:33,329 INFO L481 AbstractCegarLoop]: Abstraction has 8877 states and 39872 transitions. [2020-10-15 22:20:33,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:33,329 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 39872 transitions. [2020-10-15 22:20:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:20:33,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:33,332 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:33,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-10-15 22:20:33,332 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:33,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1446514851, now seen corresponding path program 6 times [2020-10-15 22:20:33,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:33,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789750984] [2020-10-15 22:20:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:20:33,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789750984] [2020-10-15 22:20:33,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:33,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:20:33,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237889598] [2020-10-15 22:20:33,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:33,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:33,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:33,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:33,380 INFO L87 Difference]: Start difference. First operand 8877 states and 39872 transitions. Second operand 9 states. [2020-10-15 22:20:34,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:34,082 INFO L93 Difference]: Finished difference Result 29856 states and 115140 transitions. [2020-10-15 22:20:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:20:34,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:20:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:34,145 INFO L225 Difference]: With dead ends: 29856 [2020-10-15 22:20:34,145 INFO L226 Difference]: Without dead ends: 29823 [2020-10-15 22:20:34,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:20:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2020-10-15 22:20:34,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 8560. [2020-10-15 22:20:34,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-10-15 22:20:34,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-10-15 22:20:34,552 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-10-15 22:20:34,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:34,552 INFO L481 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-10-15 22:20:34,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-10-15 22:20:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-15 22:20:34,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:34,555 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:34,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-10-15 22:20:34,555 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:34,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:34,556 INFO L82 PathProgramCache]: Analyzing trace with hash -110415564, now seen corresponding path program 1 times [2020-10-15 22:20:34,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:34,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633638218] [2020-10-15 22:20:34,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:20:34,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:20:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:20:34,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:20:34,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:20:34,574 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:20:34,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-10-15 22:20:34,574 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:20:34,575 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 22:20:34,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,605 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,605 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,606 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,607 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,608 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,609 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,622 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,622 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,623 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,626 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,626 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,633 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,634 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,634 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,634 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,634 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,636 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,636 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,636 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,636 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,636 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,637 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,637 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,639 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,639 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,641 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,643 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,643 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,644 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,644 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,644 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,645 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,645 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:20:34,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-15 22:20:34,654 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:20:34,655 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:20:34,655 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:20:34,655 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:20:34,655 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:20:34,655 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:20:34,655 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:20:34,655 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:20:34,657 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:20:34,657 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,657 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,658 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 160 places, 141 transitions, 402 flow [2020-10-15 22:20:34,680 INFO L129 PetriNetUnfolder]: 8/171 cut-off events. [2020-10-15 22:20:34,680 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-15 22:20:34,682 INFO L80 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 171 events. 8/171 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 310 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 206. Up to 14 conditions per place. [2020-10-15 22:20:34,688 INFO L117 LiptonReduction]: Number of co-enabled transitions 3612 [2020-10-15 22:20:36,579 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:20:36,857 INFO L132 LiptonReduction]: Checked pairs total: 5372 [2020-10-15 22:20:36,857 INFO L134 LiptonReduction]: Total number of compositions: 134 [2020-10-15 22:20:36,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-10-15 22:20:38,298 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-10-15 22:20:38,298 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-10-15 22:20:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:20:38,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:38,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:20:38,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:38,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1291919, now seen corresponding path program 1 times [2020-10-15 22:20:38,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:38,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912057594] [2020-10-15 22:20:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:38,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912057594] [2020-10-15 22:20:38,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:38,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:20:38,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633521013] [2020-10-15 22:20:38,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:20:38,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:38,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:20:38,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:38,307 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-10-15 22:20:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:38,437 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-10-15 22:20:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:20:38,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:20:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:38,482 INFO L225 Difference]: With dead ends: 17885 [2020-10-15 22:20:38,482 INFO L226 Difference]: Without dead ends: 16791 [2020-10-15 22:20:38,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:38,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-10-15 22:20:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-10-15 22:20:39,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-10-15 22:20:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-10-15 22:20:39,240 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-10-15 22:20:39,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:39,240 INFO L481 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-10-15 22:20:39,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:20:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-10-15 22:20:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:20:39,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:39,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:39,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-10-15 22:20:39,241 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:39,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:39,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1124534846, now seen corresponding path program 1 times [2020-10-15 22:20:39,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:39,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471264969] [2020-10-15 22:20:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:39,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471264969] [2020-10-15 22:20:39,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:39,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:39,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546474378] [2020-10-15 22:20:39,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:39,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:39,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:39,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:39,265 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-10-15 22:20:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:39,485 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-10-15 22:20:39,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:39,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:20:39,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:39,568 INFO L225 Difference]: With dead ends: 30985 [2020-10-15 22:20:39,568 INFO L226 Difference]: Without dead ends: 30977 [2020-10-15 22:20:39,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-10-15 22:20:40,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-10-15 22:20:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-10-15 22:20:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-10-15 22:20:40,586 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-10-15 22:20:40,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:40,587 INFO L481 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-10-15 22:20:40,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-10-15 22:20:40,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:20:40,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:40,587 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:40,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-10-15 22:20:40,587 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:40,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:40,588 INFO L82 PathProgramCache]: Analyzing trace with hash -696216523, now seen corresponding path program 1 times [2020-10-15 22:20:40,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:40,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052221345] [2020-10-15 22:20:40,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:20:40,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052221345] [2020-10-15 22:20:40,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:40,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:40,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546379158] [2020-10-15 22:20:40,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:40,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:40,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:40,620 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-10-15 22:20:41,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:41,226 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-10-15 22:20:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:41,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:20:41,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:41,330 INFO L225 Difference]: With dead ends: 36296 [2020-10-15 22:20:41,330 INFO L226 Difference]: Without dead ends: 36280 [2020-10-15 22:20:41,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:41,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-10-15 22:20:42,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-10-15 22:20:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-10-15 22:20:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-10-15 22:20:42,471 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-10-15 22:20:42,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:42,471 INFO L481 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-10-15 22:20:42,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-10-15 22:20:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:20:42,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:42,472 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:42,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-10-15 22:20:42,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:42,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:42,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2123666531, now seen corresponding path program 1 times [2020-10-15 22:20:42,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:42,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818032803] [2020-10-15 22:20:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:42,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818032803] [2020-10-15 22:20:42,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453285582] [2020-10-15 22:20:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:42,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:42,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:42,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:42,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:42,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085280287] [2020-10-15 22:20:42,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:42,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:42,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:42,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:42,606 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 9 states. [2020-10-15 22:20:43,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:43,097 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-10-15 22:20:43,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:43,097 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-15 22:20:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:43,250 INFO L225 Difference]: With dead ends: 56720 [2020-10-15 22:20:43,251 INFO L226 Difference]: Without dead ends: 56704 [2020-10-15 22:20:43,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:20:43,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-10-15 22:20:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-10-15 22:20:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-10-15 22:20:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-10-15 22:20:44,654 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-10-15 22:20:44,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:44,654 INFO L481 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-10-15 22:20:44,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:44,654 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-10-15 22:20:44,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:20:44,655 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:44,655 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:44,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-10-15 22:20:44,856 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:44,856 INFO L82 PathProgramCache]: Analyzing trace with hash 950817645, now seen corresponding path program 2 times [2020-10-15 22:20:44,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:44,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145627861] [2020-10-15 22:20:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:20:44,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145627861] [2020-10-15 22:20:44,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:44,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:44,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572814844] [2020-10-15 22:20:44,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:44,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:44,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:44,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:44,889 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-10-15 22:20:47,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:47,030 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-10-15 22:20:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:47,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:20:47,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:47,193 INFO L225 Difference]: With dead ends: 58078 [2020-10-15 22:20:47,194 INFO L226 Difference]: Without dead ends: 58061 [2020-10-15 22:20:47,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:20:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-10-15 22:20:48,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-10-15 22:20:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-10-15 22:20:48,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-10-15 22:20:48,616 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-10-15 22:20:48,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:48,617 INFO L481 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-10-15 22:20:48,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:48,617 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-10-15 22:20:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:20:48,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:48,617 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:48,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-10-15 22:20:48,618 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:48,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:48,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2120658652, now seen corresponding path program 1 times [2020-10-15 22:20:48,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:48,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115880059] [2020-10-15 22:20:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:20:48,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115880059] [2020-10-15 22:20:48,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:48,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:48,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776114041] [2020-10-15 22:20:48,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:48,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:48,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:48,643 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-10-15 22:20:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:49,164 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-10-15 22:20:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:20:49,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:20:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:49,382 INFO L225 Difference]: With dead ends: 41885 [2020-10-15 22:20:49,382 INFO L226 Difference]: Without dead ends: 41856 [2020-10-15 22:20:49,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-10-15 22:20:50,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-10-15 22:20:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-10-15 22:20:50,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-10-15 22:20:50,979 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-10-15 22:20:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:50,979 INFO L481 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-10-15 22:20:50,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-10-15 22:20:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:50,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:50,980 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:50,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-10-15 22:20:50,980 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:50,980 INFO L82 PathProgramCache]: Analyzing trace with hash 269605662, now seen corresponding path program 1 times [2020-10-15 22:20:50,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:50,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468371341] [2020-10-15 22:20:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:20:51,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468371341] [2020-10-15 22:20:51,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691282571] [2020-10-15 22:20:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:51,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:51,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:20:51,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:51,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:20:51,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932121608] [2020-10-15 22:20:51,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:20:51,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:51,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:20:51,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:51,108 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 9 states. [2020-10-15 22:20:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:51,662 INFO L93 Difference]: Finished difference Result 66831 states and 314874 transitions. [2020-10-15 22:20:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:51,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-10-15 22:20:51,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:52,580 INFO L225 Difference]: With dead ends: 66831 [2020-10-15 22:20:52,580 INFO L226 Difference]: Without dead ends: 66807 [2020-10-15 22:20:52,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:20:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2020-10-15 22:20:54,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 28673. [2020-10-15 22:20:54,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28673 states. [2020-10-15 22:20:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28673 states to 28673 states and 152375 transitions. [2020-10-15 22:20:54,229 INFO L78 Accepts]: Start accepts. Automaton has 28673 states and 152375 transitions. Word has length 19 [2020-10-15 22:20:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:54,229 INFO L481 AbstractCegarLoop]: Abstraction has 28673 states and 152375 transitions. [2020-10-15 22:20:54,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:20:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 28673 states and 152375 transitions. [2020-10-15 22:20:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:54,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:54,230 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:54,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-10-15 22:20:54,445 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:54,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2138468196, now seen corresponding path program 2 times [2020-10-15 22:20:54,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:54,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019980366] [2020-10-15 22:20:54,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:54,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:20:54,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019980366] [2020-10-15 22:20:54,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:54,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:54,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331651773] [2020-10-15 22:20:54,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:54,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:54,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:54,479 INFO L87 Difference]: Start difference. First operand 28673 states and 152375 transitions. Second operand 7 states. [2020-10-15 22:20:55,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:55,007 INFO L93 Difference]: Finished difference Result 68538 states and 323189 transitions. [2020-10-15 22:20:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:55,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:20:55,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:55,192 INFO L225 Difference]: With dead ends: 68538 [2020-10-15 22:20:55,193 INFO L226 Difference]: Without dead ends: 68505 [2020-10-15 22:20:55,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:20:56,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68505 states. [2020-10-15 22:20:56,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68505 to 28061. [2020-10-15 22:20:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28061 states. [2020-10-15 22:20:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28061 states to 28061 states and 149307 transitions. [2020-10-15 22:20:56,954 INFO L78 Accepts]: Start accepts. Automaton has 28061 states and 149307 transitions. Word has length 19 [2020-10-15 22:20:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:56,954 INFO L481 AbstractCegarLoop]: Abstraction has 28061 states and 149307 transitions. [2020-10-15 22:20:56,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:20:56,954 INFO L276 IsEmpty]: Start isEmpty. Operand 28061 states and 149307 transitions. [2020-10-15 22:20:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:20:56,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:56,955 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:56,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-10-15 22:20:56,955 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:56,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:56,955 INFO L82 PathProgramCache]: Analyzing trace with hash -2138444729, now seen corresponding path program 1 times [2020-10-15 22:20:56,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:56,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172309648] [2020-10-15 22:20:56,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:20:56,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172309648] [2020-10-15 22:20:56,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:56,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:20:56,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207935020] [2020-10-15 22:20:56,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:20:56,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:56,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:20:56,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:56,996 INFO L87 Difference]: Start difference. First operand 28061 states and 149307 transitions. Second operand 7 states. [2020-10-15 22:20:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:59,193 INFO L93 Difference]: Finished difference Result 69070 states and 326154 transitions. [2020-10-15 22:20:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:20:59,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:20:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:59,385 INFO L225 Difference]: With dead ends: 69070 [2020-10-15 22:20:59,386 INFO L226 Difference]: Without dead ends: 69037 [2020-10-15 22:20:59,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69037 states. [2020-10-15 22:21:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69037 to 28938. [2020-10-15 22:21:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28938 states. [2020-10-15 22:21:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28938 states to 28938 states and 153909 transitions. [2020-10-15 22:21:01,079 INFO L78 Accepts]: Start accepts. Automaton has 28938 states and 153909 transitions. Word has length 19 [2020-10-15 22:21:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:01,079 INFO L481 AbstractCegarLoop]: Abstraction has 28938 states and 153909 transitions. [2020-10-15 22:21:01,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:01,079 INFO L276 IsEmpty]: Start isEmpty. Operand 28938 states and 153909 transitions. [2020-10-15 22:21:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:21:01,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:01,080 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:01,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-10-15 22:21:01,080 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:01,081 INFO L82 PathProgramCache]: Analyzing trace with hash -2117255609, now seen corresponding path program 2 times [2020-10-15 22:21:01,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:01,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806394252] [2020-10-15 22:21:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:01,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806394252] [2020-10-15 22:21:01,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:01,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:01,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640320869] [2020-10-15 22:21:01,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:01,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:01,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:01,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:01,121 INFO L87 Difference]: Start difference. First operand 28938 states and 153909 transitions. Second operand 7 states. [2020-10-15 22:21:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:01,890 INFO L93 Difference]: Finished difference Result 70096 states and 331298 transitions. [2020-10-15 22:21:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:01,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:21:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:02,111 INFO L225 Difference]: With dead ends: 70096 [2020-10-15 22:21:02,112 INFO L226 Difference]: Without dead ends: 70063 [2020-10-15 22:21:02,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70063 states. [2020-10-15 22:21:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70063 to 29094. [2020-10-15 22:21:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2020-10-15 22:21:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2020-10-15 22:21:03,875 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2020-10-15 22:21:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:03,875 INFO L481 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2020-10-15 22:21:03,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2020-10-15 22:21:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:03,877 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:03,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-10-15 22:21:03,877 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1393024961, now seen corresponding path program 1 times [2020-10-15 22:21:03,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568254815] [2020-10-15 22:21:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:03,923 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:21:03,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568254815] [2020-10-15 22:21:03,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463175542] [2020-10-15 22:21:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:04,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:04,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:21:04,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:04,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:04,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592668579] [2020-10-15 22:21:04,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:04,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:04,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:04,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:04,032 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 11 states. [2020-10-15 22:21:05,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:05,706 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2020-10-15 22:21:05,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:05,707 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:21:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:05,996 INFO L225 Difference]: With dead ends: 100731 [2020-10-15 22:21:05,996 INFO L226 Difference]: Without dead ends: 100715 [2020-10-15 22:21:05,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:21:07,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100715 states. [2020-10-15 22:21:08,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100715 to 28723. [2020-10-15 22:21:08,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28723 states. [2020-10-15 22:21:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28723 states to 28723 states and 152772 transitions. [2020-10-15 22:21:08,212 INFO L78 Accepts]: Start accepts. Automaton has 28723 states and 152772 transitions. Word has length 21 [2020-10-15 22:21:08,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:08,213 INFO L481 AbstractCegarLoop]: Abstraction has 28723 states and 152772 transitions. [2020-10-15 22:21:08,213 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28723 states and 152772 transitions. [2020-10-15 22:21:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:08,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:08,214 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:08,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:08,415 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:08,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:08,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1414214081, now seen corresponding path program 2 times [2020-10-15 22:21:08,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:08,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443642835] [2020-10-15 22:21:08,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:21:08,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443642835] [2020-10-15 22:21:08,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853509446] [2020-10-15 22:21:08,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:08,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:21:08,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:21:08,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:08,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:08,566 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 22:21:08,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:08,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:08,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952929564] [2020-10-15 22:21:08,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:08,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:08,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:08,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:08,567 INFO L87 Difference]: Start difference. First operand 28723 states and 152772 transitions. Second operand 11 states. [2020-10-15 22:21:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:09,646 INFO L93 Difference]: Finished difference Result 99884 states and 444368 transitions. [2020-10-15 22:21:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:09,647 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-15 22:21:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:09,909 INFO L225 Difference]: With dead ends: 99884 [2020-10-15 22:21:09,909 INFO L226 Difference]: Without dead ends: 99863 [2020-10-15 22:21:09,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:21:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99863 states. [2020-10-15 22:21:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99863 to 28343. [2020-10-15 22:21:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28343 states. [2020-10-15 22:21:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28343 states to 28343 states and 150639 transitions. [2020-10-15 22:21:12,755 INFO L78 Accepts]: Start accepts. Automaton has 28343 states and 150639 transitions. Word has length 21 [2020-10-15 22:21:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:12,756 INFO L481 AbstractCegarLoop]: Abstraction has 28343 states and 150639 transitions. [2020-10-15 22:21:12,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 28343 states and 150639 transitions. [2020-10-15 22:21:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:12,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:12,757 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:12,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-10-15 22:21:12,957 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:12,958 INFO L82 PathProgramCache]: Analyzing trace with hash -2073547329, now seen corresponding path program 3 times [2020-10-15 22:21:12,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:12,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719984155] [2020-10-15 22:21:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:13,008 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:13,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719984155] [2020-10-15 22:21:13,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:13,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:13,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862004460] [2020-10-15 22:21:13,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:13,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:13,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:13,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:13,010 INFO L87 Difference]: Start difference. First operand 28343 states and 150639 transitions. Second operand 9 states. [2020-10-15 22:21:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:14,078 INFO L93 Difference]: Finished difference Result 100063 states and 445271 transitions. [2020-10-15 22:21:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:14,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:14,365 INFO L225 Difference]: With dead ends: 100063 [2020-10-15 22:21:14,366 INFO L226 Difference]: Without dead ends: 100047 [2020-10-15 22:21:14,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:21:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100047 states. [2020-10-15 22:21:16,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100047 to 27662. [2020-10-15 22:21:16,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27662 states. [2020-10-15 22:21:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27662 states to 27662 states and 147100 transitions. [2020-10-15 22:21:16,557 INFO L78 Accepts]: Start accepts. Automaton has 27662 states and 147100 transitions. Word has length 21 [2020-10-15 22:21:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:16,557 INFO L481 AbstractCegarLoop]: Abstraction has 27662 states and 147100 transitions. [2020-10-15 22:21:16,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 27662 states and 147100 transitions. [2020-10-15 22:21:16,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:16,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:16,559 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:16,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-10-15 22:21:16,559 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:16,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:16,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2051019009, now seen corresponding path program 4 times [2020-10-15 22:21:16,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:16,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034773814] [2020-10-15 22:21:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:16,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034773814] [2020-10-15 22:21:16,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:16,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:16,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608779142] [2020-10-15 22:21:16,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:16,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:16,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:16,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:16,606 INFO L87 Difference]: Start difference. First operand 27662 states and 147100 transitions. Second operand 9 states. [2020-10-15 22:21:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:17,685 INFO L93 Difference]: Finished difference Result 99531 states and 442783 transitions. [2020-10-15 22:21:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:17,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:17,999 INFO L225 Difference]: With dead ends: 99531 [2020-10-15 22:21:17,999 INFO L226 Difference]: Without dead ends: 99510 [2020-10-15 22:21:18,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:21:19,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99510 states. [2020-10-15 22:21:20,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99510 to 27286. [2020-10-15 22:21:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27286 states. [2020-10-15 22:21:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27286 states to 27286 states and 144979 transitions. [2020-10-15 22:21:20,588 INFO L78 Accepts]: Start accepts. Automaton has 27286 states and 144979 transitions. Word has length 21 [2020-10-15 22:21:20,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:20,588 INFO L481 AbstractCegarLoop]: Abstraction has 27286 states and 144979 transitions. [2020-10-15 22:21:20,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 27286 states and 144979 transitions. [2020-10-15 22:21:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:20,589 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:20,589 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:20,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-10-15 22:21:20,590 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:20,590 INFO L82 PathProgramCache]: Analyzing trace with hash 102150333, now seen corresponding path program 1 times [2020-10-15 22:21:20,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:20,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384366944] [2020-10-15 22:21:20,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:21:20,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384366944] [2020-10-15 22:21:20,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:20,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:21:20,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983178014] [2020-10-15 22:21:20,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:21:20,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:20,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:21:20,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:21:20,616 INFO L87 Difference]: Start difference. First operand 27286 states and 144979 transitions. Second operand 5 states. [2020-10-15 22:21:20,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:20,954 INFO L93 Difference]: Finished difference Result 49004 states and 248721 transitions. [2020-10-15 22:21:20,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:21:20,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-10-15 22:21:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:21,103 INFO L225 Difference]: With dead ends: 49004 [2020-10-15 22:21:21,104 INFO L226 Difference]: Without dead ends: 48958 [2020-10-15 22:21:21,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:21,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48958 states. [2020-10-15 22:21:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48958 to 33985. [2020-10-15 22:21:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33985 states. [2020-10-15 22:21:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33985 states to 33985 states and 181777 transitions. [2020-10-15 22:21:22,613 INFO L78 Accepts]: Start accepts. Automaton has 33985 states and 181777 transitions. Word has length 21 [2020-10-15 22:21:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:22,614 INFO L481 AbstractCegarLoop]: Abstraction has 33985 states and 181777 transitions. [2020-10-15 22:21:22,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:21:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 33985 states and 181777 transitions. [2020-10-15 22:21:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:22,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:22,615 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:22,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-10-15 22:21:22,615 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:22,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:22,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1130516927, now seen corresponding path program 5 times [2020-10-15 22:21:22,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:22,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398561210] [2020-10-15 22:21:22,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:22,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398561210] [2020-10-15 22:21:22,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:22,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:22,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567807087] [2020-10-15 22:21:22,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:22,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:22,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:22,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:22,662 INFO L87 Difference]: Start difference. First operand 33985 states and 181777 transitions. Second operand 9 states. [2020-10-15 22:21:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:23,808 INFO L93 Difference]: Finished difference Result 115592 states and 523747 transitions. [2020-10-15 22:21:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:23,809 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:23,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:24,160 INFO L225 Difference]: With dead ends: 115592 [2020-10-15 22:21:24,160 INFO L226 Difference]: Without dead ends: 115567 [2020-10-15 22:21:24,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:21:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115567 states. [2020-10-15 22:21:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115567 to 33074. [2020-10-15 22:21:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33074 states. [2020-10-15 22:21:27,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33074 states to 33074 states and 176935 transitions. [2020-10-15 22:21:27,292 INFO L78 Accepts]: Start accepts. Automaton has 33074 states and 176935 transitions. Word has length 21 [2020-10-15 22:21:27,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:27,292 INFO L481 AbstractCegarLoop]: Abstraction has 33074 states and 176935 transitions. [2020-10-15 22:21:27,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand 33074 states and 176935 transitions. [2020-10-15 22:21:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 22:21:27,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:27,294 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:27,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-10-15 22:21:27,294 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:27,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:27,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1131856127, now seen corresponding path program 6 times [2020-10-15 22:21:27,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:27,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905376868] [2020-10-15 22:21:27,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:27,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905376868] [2020-10-15 22:21:27,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:27,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:21:27,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21697602] [2020-10-15 22:21:27,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:27,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:27,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:27,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:27,343 INFO L87 Difference]: Start difference. First operand 33074 states and 176935 transitions. Second operand 9 states. [2020-10-15 22:21:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:28,435 INFO L93 Difference]: Finished difference Result 114402 states and 517732 transitions. [2020-10-15 22:21:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:28,435 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-15 22:21:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:28,766 INFO L225 Difference]: With dead ends: 114402 [2020-10-15 22:21:28,766 INFO L226 Difference]: Without dead ends: 114371 [2020-10-15 22:21:28,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:21:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114371 states. [2020-10-15 22:21:31,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114371 to 31960. [2020-10-15 22:21:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31960 states. [2020-10-15 22:21:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31960 states to 31960 states and 171209 transitions. [2020-10-15 22:21:31,293 INFO L78 Accepts]: Start accepts. Automaton has 31960 states and 171209 transitions. Word has length 21 [2020-10-15 22:21:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:31,293 INFO L481 AbstractCegarLoop]: Abstraction has 31960 states and 171209 transitions. [2020-10-15 22:21:31,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:31,293 INFO L276 IsEmpty]: Start isEmpty. Operand 31960 states and 171209 transitions. [2020-10-15 22:21:31,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:31,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:31,295 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:31,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-10-15 22:21:31,295 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1106577557, now seen corresponding path program 1 times [2020-10-15 22:21:31,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:31,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515593984] [2020-10-15 22:21:31,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:31,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515593984] [2020-10-15 22:21:31,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124818890] [2020-10-15 22:21:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:31,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:21:31,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:31,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:31,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:21:31,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077984085] [2020-10-15 22:21:31,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:31,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:31,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:31,436 INFO L87 Difference]: Start difference. First operand 31960 states and 171209 transitions. Second operand 9 states. [2020-10-15 22:21:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:32,072 INFO L93 Difference]: Finished difference Result 75380 states and 361389 transitions. [2020-10-15 22:21:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:32,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:21:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:32,308 INFO L225 Difference]: With dead ends: 75380 [2020-10-15 22:21:32,309 INFO L226 Difference]: Without dead ends: 75344 [2020-10-15 22:21:32,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:21:33,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75344 states. [2020-10-15 22:21:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75344 to 32974. [2020-10-15 22:21:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2020-10-15 22:21:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 176363 transitions. [2020-10-15 22:21:34,716 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 176363 transitions. Word has length 23 [2020-10-15 22:21:34,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:34,716 INFO L481 AbstractCegarLoop]: Abstraction has 32974 states and 176363 transitions. [2020-10-15 22:21:34,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:34,716 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 176363 transitions. [2020-10-15 22:21:34,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:34,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:34,718 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:34,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:34,918 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:34,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:34,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1026706248, now seen corresponding path program 1 times [2020-10-15 22:21:34,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:34,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839245972] [2020-10-15 22:21:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:34,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839245972] [2020-10-15 22:21:34,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596047435] [2020-10-15 22:21:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:35,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:21:35,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:21:35,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:35,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:21:35,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869986025] [2020-10-15 22:21:35,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:21:35,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:35,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:21:35,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:35,079 INFO L87 Difference]: Start difference. First operand 32974 states and 176363 transitions. Second operand 9 states. [2020-10-15 22:21:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:36,061 INFO L93 Difference]: Finished difference Result 79463 states and 381713 transitions. [2020-10-15 22:21:36,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:36,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-15 22:21:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:36,301 INFO L225 Difference]: With dead ends: 79463 [2020-10-15 22:21:36,302 INFO L226 Difference]: Without dead ends: 79421 [2020-10-15 22:21:36,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:21:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79421 states. [2020-10-15 22:21:38,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79421 to 33977. [2020-10-15 22:21:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33977 states. [2020-10-15 22:21:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33977 states to 33977 states and 181698 transitions. [2020-10-15 22:21:38,368 INFO L78 Accepts]: Start accepts. Automaton has 33977 states and 181698 transitions. Word has length 23 [2020-10-15 22:21:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:38,369 INFO L481 AbstractCegarLoop]: Abstraction has 33977 states and 181698 transitions. [2020-10-15 22:21:38,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:21:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33977 states and 181698 transitions. [2020-10-15 22:21:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:38,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:38,371 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:38,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:38,572 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -617779723, now seen corresponding path program 2 times [2020-10-15 22:21:38,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:38,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994462758] [2020-10-15 22:21:38,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:21:38,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994462758] [2020-10-15 22:21:38,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:38,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:38,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205216030] [2020-10-15 22:21:38,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:38,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:38,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:38,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:38,603 INFO L87 Difference]: Start difference. First operand 33977 states and 181698 transitions. Second operand 7 states. [2020-10-15 22:21:39,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:39,201 INFO L93 Difference]: Finished difference Result 80867 states and 388763 transitions. [2020-10-15 22:21:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:39,202 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:39,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:39,427 INFO L225 Difference]: With dead ends: 80867 [2020-10-15 22:21:39,427 INFO L226 Difference]: Without dead ends: 80812 [2020-10-15 22:21:39,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:40,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80812 states. [2020-10-15 22:21:41,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80812 to 34223. [2020-10-15 22:21:41,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34223 states. [2020-10-15 22:21:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34223 states to 34223 states and 183033 transitions. [2020-10-15 22:21:41,350 INFO L78 Accepts]: Start accepts. Automaton has 34223 states and 183033 transitions. Word has length 23 [2020-10-15 22:21:41,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:41,350 INFO L481 AbstractCegarLoop]: Abstraction has 34223 states and 183033 transitions. [2020-10-15 22:21:41,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:41,351 INFO L276 IsEmpty]: Start isEmpty. Operand 34223 states and 183033 transitions. [2020-10-15 22:21:41,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:41,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:41,352 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:41,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-10-15 22:21:41,353 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:41,353 INFO L82 PathProgramCache]: Analyzing trace with hash -617778328, now seen corresponding path program 2 times [2020-10-15 22:21:41,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:41,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348585977] [2020-10-15 22:21:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:41,389 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:21:41,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348585977] [2020-10-15 22:21:41,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:41,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:41,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370757676] [2020-10-15 22:21:41,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:41,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:41,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:41,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:41,391 INFO L87 Difference]: Start difference. First operand 34223 states and 183033 transitions. Second operand 7 states. [2020-10-15 22:21:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:42,245 INFO L93 Difference]: Finished difference Result 80887 states and 388540 transitions. [2020-10-15 22:21:42,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:42,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:42,471 INFO L225 Difference]: With dead ends: 80887 [2020-10-15 22:21:42,472 INFO L226 Difference]: Without dead ends: 80832 [2020-10-15 22:21:42,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:43,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80832 states. [2020-10-15 22:21:44,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80832 to 34508. [2020-10-15 22:21:44,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34508 states. [2020-10-15 22:21:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34508 states to 34508 states and 184670 transitions. [2020-10-15 22:21:44,476 INFO L78 Accepts]: Start accepts. Automaton has 34508 states and 184670 transitions. Word has length 23 [2020-10-15 22:21:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:44,476 INFO L481 AbstractCegarLoop]: Abstraction has 34508 states and 184670 transitions. [2020-10-15 22:21:44,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 34508 states and 184670 transitions. [2020-10-15 22:21:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:44,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:44,478 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:44,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-10-15 22:21:44,478 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:44,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:44,479 INFO L82 PathProgramCache]: Analyzing trace with hash -617756256, now seen corresponding path program 1 times [2020-10-15 22:21:44,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:44,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827209236] [2020-10-15 22:21:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:21:44,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827209236] [2020-10-15 22:21:44,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:44,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:44,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096661886] [2020-10-15 22:21:44,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:44,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:44,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:44,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:44,511 INFO L87 Difference]: Start difference. First operand 34508 states and 184670 transitions. Second operand 7 states. [2020-10-15 22:21:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:45,143 INFO L93 Difference]: Finished difference Result 83313 states and 401031 transitions. [2020-10-15 22:21:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:45,143 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:45,387 INFO L225 Difference]: With dead ends: 83313 [2020-10-15 22:21:45,387 INFO L226 Difference]: Without dead ends: 83258 [2020-10-15 22:21:45,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83258 states. [2020-10-15 22:21:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83258 to 36258. [2020-10-15 22:21:47,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36258 states. [2020-10-15 22:21:47,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36258 states to 36258 states and 193887 transitions. [2020-10-15 22:21:47,452 INFO L78 Accepts]: Start accepts. Automaton has 36258 states and 193887 transitions. Word has length 23 [2020-10-15 22:21:47,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:47,452 INFO L481 AbstractCegarLoop]: Abstraction has 36258 states and 193887 transitions. [2020-10-15 22:21:47,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand 36258 states and 193887 transitions. [2020-10-15 22:21:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-15 22:21:47,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:47,454 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:47,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-10-15 22:21:47,454 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:47,454 INFO L82 PathProgramCache]: Analyzing trace with hash -581716896, now seen corresponding path program 2 times [2020-10-15 22:21:47,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:47,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736842323] [2020-10-15 22:21:47,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:21:47,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736842323] [2020-10-15 22:21:47,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:47,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:21:47,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366101059] [2020-10-15 22:21:47,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:21:47,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:47,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:21:47,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:47,490 INFO L87 Difference]: Start difference. First operand 36258 states and 193887 transitions. Second operand 7 states. [2020-10-15 22:21:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:48,176 INFO L93 Difference]: Finished difference Result 84364 states and 406246 transitions. [2020-10-15 22:21:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:21:48,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-15 22:21:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:48,458 INFO L225 Difference]: With dead ends: 84364 [2020-10-15 22:21:48,459 INFO L226 Difference]: Without dead ends: 84309 [2020-10-15 22:21:48,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:21:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84309 states. [2020-10-15 22:21:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84309 to 37062. [2020-10-15 22:21:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37062 states. [2020-10-15 22:21:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37062 states to 37062 states and 198528 transitions. [2020-10-15 22:21:51,252 INFO L78 Accepts]: Start accepts. Automaton has 37062 states and 198528 transitions. Word has length 23 [2020-10-15 22:21:51,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:51,253 INFO L481 AbstractCegarLoop]: Abstraction has 37062 states and 198528 transitions. [2020-10-15 22:21:51,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:21:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 37062 states and 198528 transitions. [2020-10-15 22:21:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:21:51,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:51,256 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:51,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-10-15 22:21:51,256 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:51,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:51,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1745706838, now seen corresponding path program 1 times [2020-10-15 22:21:51,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:51,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301993052] [2020-10-15 22:21:51,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:51,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301993052] [2020-10-15 22:21:51,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83328118] [2020-10-15 22:21:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:51,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:51,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:51,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:51,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:51,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287494705] [2020-10-15 22:21:51,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:51,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:51,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:51,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:51,414 INFO L87 Difference]: Start difference. First operand 37062 states and 198528 transitions. Second operand 11 states. [2020-10-15 22:21:52,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:52,630 INFO L93 Difference]: Finished difference Result 122892 states and 561130 transitions. [2020-10-15 22:21:52,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:52,631 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:21:52,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:52,985 INFO L225 Difference]: With dead ends: 122892 [2020-10-15 22:21:52,985 INFO L226 Difference]: Without dead ends: 122862 [2020-10-15 22:21:52,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:21:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122862 states. [2020-10-15 22:21:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122862 to 36735. [2020-10-15 22:21:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36735 states. [2020-10-15 22:21:55,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36735 states to 36735 states and 196486 transitions. [2020-10-15 22:21:55,710 INFO L78 Accepts]: Start accepts. Automaton has 36735 states and 196486 transitions. Word has length 25 [2020-10-15 22:21:55,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:55,710 INFO L481 AbstractCegarLoop]: Abstraction has 36735 states and 196486 transitions. [2020-10-15 22:21:55,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:21:55,710 INFO L276 IsEmpty]: Start isEmpty. Operand 36735 states and 196486 transitions. [2020-10-15 22:21:55,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:21:55,713 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:55,713 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:55,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2020-10-15 22:21:55,914 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:55,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1730856598, now seen corresponding path program 2 times [2020-10-15 22:21:55,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:55,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090969805] [2020-10-15 22:21:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:55,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090969805] [2020-10-15 22:21:55,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70046526] [2020-10-15 22:21:55,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:56,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:21:56,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:21:56,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:21:56,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:21:56,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:21:56,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:21:56,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972764427] [2020-10-15 22:21:56,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:21:56,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:56,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:21:56,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:56,072 INFO L87 Difference]: Start difference. First operand 36735 states and 196486 transitions. Second operand 11 states. [2020-10-15 22:21:57,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:57,280 INFO L93 Difference]: Finished difference Result 121506 states and 554103 transitions. [2020-10-15 22:21:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:21:57,280 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:21:57,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:57,604 INFO L225 Difference]: With dead ends: 121506 [2020-10-15 22:21:57,605 INFO L226 Difference]: Without dead ends: 121473 [2020-10-15 22:21:57,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:21:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121473 states. [2020-10-15 22:22:00,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121473 to 36666. [2020-10-15 22:22:00,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36666 states. [2020-10-15 22:22:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36666 states to 36666 states and 195964 transitions. [2020-10-15 22:22:01,103 INFO L78 Accepts]: Start accepts. Automaton has 36666 states and 195964 transitions. Word has length 25 [2020-10-15 22:22:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:01,103 INFO L481 AbstractCegarLoop]: Abstraction has 36666 states and 195964 transitions. [2020-10-15 22:22:01,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 36666 states and 195964 transitions. [2020-10-15 22:22:01,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:01,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:01,107 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:01,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:01,315 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:01,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1730878670, now seen corresponding path program 1 times [2020-10-15 22:22:01,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:01,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523482439] [2020-10-15 22:22:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:22:01,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523482439] [2020-10-15 22:22:01,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344056553] [2020-10-15 22:22:01,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:01,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:01,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:22:01,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:01,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:01,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980267214] [2020-10-15 22:22:01,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:01,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:01,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:01,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:01,476 INFO L87 Difference]: Start difference. First operand 36666 states and 195964 transitions. Second operand 11 states. [2020-10-15 22:22:02,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:02,657 INFO L93 Difference]: Finished difference Result 120500 states and 549397 transitions. [2020-10-15 22:22:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:02,657 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:02,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:02,987 INFO L225 Difference]: With dead ends: 120500 [2020-10-15 22:22:02,988 INFO L226 Difference]: Without dead ends: 120470 [2020-10-15 22:22:02,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120470 states. [2020-10-15 22:22:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120470 to 36343. [2020-10-15 22:22:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36343 states. [2020-10-15 22:22:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36343 states to 36343 states and 194056 transitions. [2020-10-15 22:22:05,754 INFO L78 Accepts]: Start accepts. Automaton has 36343 states and 194056 transitions. Word has length 25 [2020-10-15 22:22:05,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:05,754 INFO L481 AbstractCegarLoop]: Abstraction has 36343 states and 194056 transitions. [2020-10-15 22:22:05,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 36343 states and 194056 transitions. [2020-10-15 22:22:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:05,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:05,757 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:05,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-10-15 22:22:05,958 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:05,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1766918030, now seen corresponding path program 2 times [2020-10-15 22:22:05,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:05,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526275287] [2020-10-15 22:22:05,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:06,006 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:22:06,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526275287] [2020-10-15 22:22:06,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342934372] [2020-10-15 22:22:06,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:06,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:22:06,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:06,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:06,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:22:06,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:06,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:06,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142329721] [2020-10-15 22:22:06,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:06,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:06,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:06,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:06,119 INFO L87 Difference]: Start difference. First operand 36343 states and 194056 transitions. Second operand 11 states. [2020-10-15 22:22:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:07,276 INFO L93 Difference]: Finished difference Result 119731 states and 545560 transitions. [2020-10-15 22:22:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:07,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:07,608 INFO L225 Difference]: With dead ends: 119731 [2020-10-15 22:22:07,608 INFO L226 Difference]: Without dead ends: 119698 [2020-10-15 22:22:07,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:08,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119698 states. [2020-10-15 22:22:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119698 to 36040. [2020-10-15 22:22:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36040 states. [2020-10-15 22:22:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36040 states to 36040 states and 192287 transitions. [2020-10-15 22:22:10,841 INFO L78 Accepts]: Start accepts. Automaton has 36040 states and 192287 transitions. Word has length 25 [2020-10-15 22:22:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:10,841 INFO L481 AbstractCegarLoop]: Abstraction has 36040 states and 192287 transitions. [2020-10-15 22:22:10,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 36040 states and 192287 transitions. [2020-10-15 22:22:10,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:10,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:10,843 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:11,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:11,044 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:11,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1849107924, now seen corresponding path program 3 times [2020-10-15 22:22:11,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:11,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931497798] [2020-10-15 22:22:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:11,092 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:11,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931497798] [2020-10-15 22:22:11,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950736539] [2020-10-15 22:22:11,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:11,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:22:11,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:11,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:11,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:11,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:11,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:11,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380466674] [2020-10-15 22:22:11,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:11,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:11,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:11,200 INFO L87 Difference]: Start difference. First operand 36040 states and 192287 transitions. Second operand 11 states. [2020-10-15 22:22:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:12,372 INFO L93 Difference]: Finished difference Result 119762 states and 545615 transitions. [2020-10-15 22:22:12,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:12,373 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:12,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:12,696 INFO L225 Difference]: With dead ends: 119762 [2020-10-15 22:22:12,697 INFO L226 Difference]: Without dead ends: 119732 [2020-10-15 22:22:12,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:13,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119732 states. [2020-10-15 22:22:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119732 to 35475. [2020-10-15 22:22:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35475 states. [2020-10-15 22:22:15,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35475 states to 35475 states and 189246 transitions. [2020-10-15 22:22:15,421 INFO L78 Accepts]: Start accepts. Automaton has 35475 states and 189246 transitions. Word has length 25 [2020-10-15 22:22:15,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:15,421 INFO L481 AbstractCegarLoop]: Abstraction has 35475 states and 189246 transitions. [2020-10-15 22:22:15,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 35475 states and 189246 transitions. [2020-10-15 22:22:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:15,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:15,424 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:15,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-10-15 22:22:15,625 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:15,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:15,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1177775680, now seen corresponding path program 4 times [2020-10-15 22:22:15,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:15,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367601618] [2020-10-15 22:22:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:15,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:15,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367601618] [2020-10-15 22:22:15,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125830188] [2020-10-15 22:22:15,675 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:15,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:22:15,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:15,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:15,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:15,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:15,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:15,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928970770] [2020-10-15 22:22:15,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:15,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:15,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:15,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:15,781 INFO L87 Difference]: Start difference. First operand 35475 states and 189246 transitions. Second operand 11 states. [2020-10-15 22:22:16,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:16,991 INFO L93 Difference]: Finished difference Result 120788 states and 550630 transitions. [2020-10-15 22:22:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:16,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:16,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:17,327 INFO L225 Difference]: With dead ends: 120788 [2020-10-15 22:22:17,328 INFO L226 Difference]: Without dead ends: 120755 [2020-10-15 22:22:17,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:18,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120755 states. [2020-10-15 22:22:20,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120755 to 35406. [2020-10-15 22:22:20,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35406 states. [2020-10-15 22:22:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35406 states to 35406 states and 188724 transitions. [2020-10-15 22:22:20,654 INFO L78 Accepts]: Start accepts. Automaton has 35406 states and 188724 transitions. Word has length 25 [2020-10-15 22:22:20,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:20,655 INFO L481 AbstractCegarLoop]: Abstraction has 35406 states and 188724 transitions. [2020-10-15 22:22:20,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 35406 states and 188724 transitions. [2020-10-15 22:22:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:20,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:20,657 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:20,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-10-15 22:22:20,858 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:20,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1177752213, now seen corresponding path program 1 times [2020-10-15 22:22:20,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:20,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065817510] [2020-10-15 22:22:20,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:20,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:20,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065817510] [2020-10-15 22:22:20,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14895146] [2020-10-15 22:22:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:20,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:20,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:21,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:21,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:21,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802596551] [2020-10-15 22:22:21,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:21,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:21,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:21,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:21,015 INFO L87 Difference]: Start difference. First operand 35406 states and 188724 transitions. Second operand 11 states. [2020-10-15 22:22:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:22,301 INFO L93 Difference]: Finished difference Result 120291 states and 549128 transitions. [2020-10-15 22:22:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:22,302 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:22,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:22,640 INFO L225 Difference]: With dead ends: 120291 [2020-10-15 22:22:22,640 INFO L226 Difference]: Without dead ends: 120261 [2020-10-15 22:22:22,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120261 states. [2020-10-15 22:22:25,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120261 to 35196. [2020-10-15 22:22:25,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35196 states. [2020-10-15 22:22:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 187476 transitions. [2020-10-15 22:22:25,233 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 187476 transitions. Word has length 25 [2020-10-15 22:22:25,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:25,233 INFO L481 AbstractCegarLoop]: Abstraction has 35196 states and 187476 transitions. [2020-10-15 22:22:25,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 187476 transitions. [2020-10-15 22:22:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:25,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:25,236 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:25,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:25,436 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:25,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:25,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1141712853, now seen corresponding path program 2 times [2020-10-15 22:22:25,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:25,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310801822] [2020-10-15 22:22:25,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:25,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310801822] [2020-10-15 22:22:25,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140485927] [2020-10-15 22:22:25,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:25,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:22:25,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:22:25,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:22:25,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:22:25,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:25,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:22:25,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327773599] [2020-10-15 22:22:25,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:22:25,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:25,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:22:25,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:22:25,601 INFO L87 Difference]: Start difference. First operand 35196 states and 187476 transitions. Second operand 11 states. [2020-10-15 22:22:26,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:26,755 INFO L93 Difference]: Finished difference Result 119264 states and 544110 transitions. [2020-10-15 22:22:26,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:26,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-10-15 22:22:26,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:27,091 INFO L225 Difference]: With dead ends: 119264 [2020-10-15 22:22:27,091 INFO L226 Difference]: Without dead ends: 119224 [2020-10-15 22:22:27,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:22:28,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119224 states. [2020-10-15 22:22:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119224 to 34815. [2020-10-15 22:22:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34815 states. [2020-10-15 22:22:30,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34815 states to 34815 states and 185342 transitions. [2020-10-15 22:22:30,283 INFO L78 Accepts]: Start accepts. Automaton has 34815 states and 185342 transitions. Word has length 25 [2020-10-15 22:22:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:30,283 INFO L481 AbstractCegarLoop]: Abstraction has 34815 states and 185342 transitions. [2020-10-15 22:22:30,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:22:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 34815 states and 185342 transitions. [2020-10-15 22:22:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:30,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:30,286 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:30,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-10-15 22:22:30,493 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:30,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:30,494 INFO L82 PathProgramCache]: Analyzing trace with hash -980827488, now seen corresponding path program 5 times [2020-10-15 22:22:30,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:30,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167005130] [2020-10-15 22:22:30,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:30,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167005130] [2020-10-15 22:22:30,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:30,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:30,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124067335] [2020-10-15 22:22:30,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:30,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:30,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:30,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:30,545 INFO L87 Difference]: Start difference. First operand 34815 states and 185342 transitions. Second operand 9 states. [2020-10-15 22:22:31,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:31,676 INFO L93 Difference]: Finished difference Result 119116 states and 542590 transitions. [2020-10-15 22:22:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:31,677 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:31,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:32,003 INFO L225 Difference]: With dead ends: 119116 [2020-10-15 22:22:32,003 INFO L226 Difference]: Without dead ends: 119086 [2020-10-15 22:22:32,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:33,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119086 states. [2020-10-15 22:22:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119086 to 34044. [2020-10-15 22:22:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34044 states. [2020-10-15 22:22:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34044 states to 34044 states and 181257 transitions. [2020-10-15 22:22:34,603 INFO L78 Accepts]: Start accepts. Automaton has 34044 states and 181257 transitions. Word has length 25 [2020-10-15 22:22:34,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:34,603 INFO L481 AbstractCegarLoop]: Abstraction has 34044 states and 181257 transitions. [2020-10-15 22:22:34,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:34,603 INFO L276 IsEmpty]: Start isEmpty. Operand 34044 states and 181257 transitions. [2020-10-15 22:22:34,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:34,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:34,606 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:34,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-10-15 22:22:34,606 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:34,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:34,607 INFO L82 PathProgramCache]: Analyzing trace with hash -980805416, now seen corresponding path program 3 times [2020-10-15 22:22:34,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:34,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571222353] [2020-10-15 22:22:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:34,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:34,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571222353] [2020-10-15 22:22:34,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:34,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:34,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999175736] [2020-10-15 22:22:34,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:34,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:34,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:34,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:34,656 INFO L87 Difference]: Start difference. First operand 34044 states and 181257 transitions. Second operand 9 states. [2020-10-15 22:22:35,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:35,850 INFO L93 Difference]: Finished difference Result 118392 states and 539774 transitions. [2020-10-15 22:22:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:35,851 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:36,181 INFO L225 Difference]: With dead ends: 118392 [2020-10-15 22:22:36,181 INFO L226 Difference]: Without dead ends: 118362 [2020-10-15 22:22:36,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118362 states. [2020-10-15 22:22:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118362 to 33530. [2020-10-15 22:22:39,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33530 states. [2020-10-15 22:22:39,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33530 states to 33530 states and 178563 transitions. [2020-10-15 22:22:39,487 INFO L78 Accepts]: Start accepts. Automaton has 33530 states and 178563 transitions. Word has length 25 [2020-10-15 22:22:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:39,487 INFO L481 AbstractCegarLoop]: Abstraction has 33530 states and 178563 transitions. [2020-10-15 22:22:39,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 33530 states and 178563 transitions. [2020-10-15 22:22:39,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:39,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:39,490 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:39,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-10-15 22:22:39,490 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:39,490 INFO L82 PathProgramCache]: Analyzing trace with hash -979488288, now seen corresponding path program 6 times [2020-10-15 22:22:39,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:39,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704576248] [2020-10-15 22:22:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:39,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704576248] [2020-10-15 22:22:39,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:39,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:39,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309933236] [2020-10-15 22:22:39,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:39,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:39,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:39,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:39,535 INFO L87 Difference]: Start difference. First operand 33530 states and 178563 transitions. Second operand 9 states. [2020-10-15 22:22:40,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:40,661 INFO L93 Difference]: Finished difference Result 116966 states and 531912 transitions. [2020-10-15 22:22:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:40,661 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:40,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:40,982 INFO L225 Difference]: With dead ends: 116966 [2020-10-15 22:22:40,982 INFO L226 Difference]: Without dead ends: 116926 [2020-10-15 22:22:40,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116926 states. [2020-10-15 22:22:43,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116926 to 32557. [2020-10-15 22:22:43,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32557 states. [2020-10-15 22:22:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32557 states to 32557 states and 173592 transitions. [2020-10-15 22:22:43,496 INFO L78 Accepts]: Start accepts. Automaton has 32557 states and 173592 transitions. Word has length 25 [2020-10-15 22:22:43,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:43,496 INFO L481 AbstractCegarLoop]: Abstraction has 32557 states and 173592 transitions. [2020-10-15 22:22:43,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:43,496 INFO L276 IsEmpty]: Start isEmpty. Operand 32557 states and 173592 transitions. [2020-10-15 22:22:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:43,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:43,498 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:43,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-10-15 22:22:43,499 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:43,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:43,499 INFO L82 PathProgramCache]: Analyzing trace with hash -979464821, now seen corresponding path program 3 times [2020-10-15 22:22:43,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:43,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869481578] [2020-10-15 22:22:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:43,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869481578] [2020-10-15 22:22:43,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:43,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:43,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180018928] [2020-10-15 22:22:43,548 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:43,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:43,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:43,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:43,549 INFO L87 Difference]: Start difference. First operand 32557 states and 173592 transitions. Second operand 9 states. [2020-10-15 22:22:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:44,654 INFO L93 Difference]: Finished difference Result 116421 states and 530054 transitions. [2020-10-15 22:22:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:44,654 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:44,984 INFO L225 Difference]: With dead ends: 116421 [2020-10-15 22:22:44,984 INFO L226 Difference]: Without dead ends: 116391 [2020-10-15 22:22:44,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:46,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116391 states. [2020-10-15 22:22:47,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116391 to 32226. [2020-10-15 22:22:47,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32226 states. [2020-10-15 22:22:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32226 states to 32226 states and 171898 transitions. [2020-10-15 22:22:47,437 INFO L78 Accepts]: Start accepts. Automaton has 32226 states and 171898 transitions. Word has length 25 [2020-10-15 22:22:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:47,437 INFO L481 AbstractCegarLoop]: Abstraction has 32226 states and 171898 transitions. [2020-10-15 22:22:47,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 32226 states and 171898 transitions. [2020-10-15 22:22:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:47,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:47,439 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:47,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2020-10-15 22:22:47,439 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:47,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:47,440 INFO L82 PathProgramCache]: Analyzing trace with hash -958277096, now seen corresponding path program 4 times [2020-10-15 22:22:47,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:47,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850558433] [2020-10-15 22:22:47,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:47,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850558433] [2020-10-15 22:22:47,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:47,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:47,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859281111] [2020-10-15 22:22:47,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:47,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:47,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:47,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:47,961 INFO L87 Difference]: Start difference. First operand 32226 states and 171898 transitions. Second operand 9 states. [2020-10-15 22:22:49,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:49,140 INFO L93 Difference]: Finished difference Result 116502 states and 530595 transitions. [2020-10-15 22:22:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:49,140 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:49,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:49,468 INFO L225 Difference]: With dead ends: 116502 [2020-10-15 22:22:49,469 INFO L226 Difference]: Without dead ends: 116462 [2020-10-15 22:22:49,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:50,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116462 states. [2020-10-15 22:22:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116462 to 32188. [2020-10-15 22:22:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32188 states. [2020-10-15 22:22:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 171558 transitions. [2020-10-15 22:22:51,950 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 171558 transitions. Word has length 25 [2020-10-15 22:22:51,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:51,951 INFO L481 AbstractCegarLoop]: Abstraction has 32188 states and 171558 transitions. [2020-10-15 22:22:51,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 171558 transitions. [2020-10-15 22:22:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:51,953 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:51,953 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:51,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2020-10-15 22:22:51,954 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:51,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash -958275701, now seen corresponding path program 4 times [2020-10-15 22:22:51,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:51,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573748170] [2020-10-15 22:22:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:52,002 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:52,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573748170] [2020-10-15 22:22:52,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:52,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:52,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430738991] [2020-10-15 22:22:52,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:52,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:52,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:52,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:52,004 INFO L87 Difference]: Start difference. First operand 32188 states and 171558 transitions. Second operand 9 states. [2020-10-15 22:22:53,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:53,214 INFO L93 Difference]: Finished difference Result 115555 states and 526107 transitions. [2020-10-15 22:22:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:22:53,214 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:22:53,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:53,542 INFO L225 Difference]: With dead ends: 115555 [2020-10-15 22:22:53,542 INFO L226 Difference]: Without dead ends: 115515 [2020-10-15 22:22:53,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:22:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115515 states. [2020-10-15 22:22:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115515 to 31998. [2020-10-15 22:22:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31998 states. [2020-10-15 22:22:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31998 states to 31998 states and 170450 transitions. [2020-10-15 22:22:56,077 INFO L78 Accepts]: Start accepts. Automaton has 31998 states and 170450 transitions. Word has length 25 [2020-10-15 22:22:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:56,077 INFO L481 AbstractCegarLoop]: Abstraction has 31998 states and 170450 transitions. [2020-10-15 22:22:56,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:22:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 31998 states and 170450 transitions. [2020-10-15 22:22:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:56,080 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:56,080 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:56,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2020-10-15 22:22:56,080 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:56,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1698987747, now seen corresponding path program 1 times [2020-10-15 22:22:56,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:56,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965591303] [2020-10-15 22:22:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:22:56,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965591303] [2020-10-15 22:22:56,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:56,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:22:56,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487896886] [2020-10-15 22:22:56,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:22:56,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:56,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:22:56,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:22:56,108 INFO L87 Difference]: Start difference. First operand 31998 states and 170450 transitions. Second operand 5 states. [2020-10-15 22:22:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:56,908 INFO L93 Difference]: Finished difference Result 56734 states and 290623 transitions. [2020-10-15 22:22:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:22:56,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 22:22:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:57,087 INFO L225 Difference]: With dead ends: 56734 [2020-10-15 22:22:57,087 INFO L226 Difference]: Without dead ends: 56671 [2020-10-15 22:22:57,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:22:57,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56671 states. [2020-10-15 22:22:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56671 to 40400. [2020-10-15 22:22:58,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40400 states. [2020-10-15 22:22:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40400 states to 40400 states and 215336 transitions. [2020-10-15 22:22:58,729 INFO L78 Accepts]: Start accepts. Automaton has 40400 states and 215336 transitions. Word has length 25 [2020-10-15 22:22:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:58,730 INFO L481 AbstractCegarLoop]: Abstraction has 40400 states and 215336 transitions. [2020-10-15 22:22:58,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:22:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 40400 states and 215336 transitions. [2020-10-15 22:22:58,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:22:58,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:58,732 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:58,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2020-10-15 22:22:58,732 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:58,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:58,733 INFO L82 PathProgramCache]: Analyzing trace with hash -670679464, now seen corresponding path program 5 times [2020-10-15 22:22:58,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:58,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113218439] [2020-10-15 22:22:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:22:58,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113218439] [2020-10-15 22:22:58,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:22:58,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:22:58,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996979645] [2020-10-15 22:22:58,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:22:58,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:58,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:22:58,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:22:58,780 INFO L87 Difference]: Start difference. First operand 40400 states and 215336 transitions. Second operand 9 states. [2020-10-15 22:23:00,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:00,043 INFO L93 Difference]: Finished difference Result 137449 states and 636138 transitions. [2020-10-15 22:23:00,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:00,043 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:00,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:00,436 INFO L225 Difference]: With dead ends: 137449 [2020-10-15 22:23:00,436 INFO L226 Difference]: Without dead ends: 137407 [2020-10-15 22:23:00,436 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:23:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137407 states. [2020-10-15 22:23:03,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137407 to 39840. [2020-10-15 22:23:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39840 states. [2020-10-15 22:23:03,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39840 states to 39840 states and 212294 transitions. [2020-10-15 22:23:03,483 INFO L78 Accepts]: Start accepts. Automaton has 39840 states and 212294 transitions. Word has length 25 [2020-10-15 22:23:03,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:03,483 INFO L481 AbstractCegarLoop]: Abstraction has 39840 states and 212294 transitions. [2020-10-15 22:23:03,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:03,483 INFO L276 IsEmpty]: Start isEmpty. Operand 39840 states and 212294 transitions. [2020-10-15 22:23:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:03,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:03,485 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:03,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2020-10-15 22:23:03,486 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:03,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:03,486 INFO L82 PathProgramCache]: Analyzing trace with hash -669338869, now seen corresponding path program 5 times [2020-10-15 22:23:03,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:03,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040703511] [2020-10-15 22:23:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:23:03,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040703511] [2020-10-15 22:23:03,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:03,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:03,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824522341] [2020-10-15 22:23:03,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:03,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:03,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:03,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:03,538 INFO L87 Difference]: Start difference. First operand 39840 states and 212294 transitions. Second operand 9 states. [2020-10-15 22:23:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:04,764 INFO L93 Difference]: Finished difference Result 136260 states and 629977 transitions. [2020-10-15 22:23:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:04,765 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:04,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:05,155 INFO L225 Difference]: With dead ends: 136260 [2020-10-15 22:23:05,156 INFO L226 Difference]: Without dead ends: 136218 [2020-10-15 22:23:05,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:23:07,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136218 states. [2020-10-15 22:23:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136218 to 39457. [2020-10-15 22:23:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39457 states. [2020-10-15 22:23:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39457 states to 39457 states and 210241 transitions. [2020-10-15 22:23:08,691 INFO L78 Accepts]: Start accepts. Automaton has 39457 states and 210241 transitions. Word has length 25 [2020-10-15 22:23:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:08,691 INFO L481 AbstractCegarLoop]: Abstraction has 39457 states and 210241 transitions. [2020-10-15 22:23:08,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand 39457 states and 210241 transitions. [2020-10-15 22:23:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:08,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:08,694 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:08,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2020-10-15 22:23:08,694 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:08,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:08,694 INFO L82 PathProgramCache]: Analyzing trace with hash -684190504, now seen corresponding path program 6 times [2020-10-15 22:23:08,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:08,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146826808] [2020-10-15 22:23:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:23:08,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146826808] [2020-10-15 22:23:08,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:08,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:08,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912306477] [2020-10-15 22:23:08,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:08,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:08,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:08,744 INFO L87 Difference]: Start difference. First operand 39457 states and 210241 transitions. Second operand 9 states. [2020-10-15 22:23:09,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:09,979 INFO L93 Difference]: Finished difference Result 135358 states and 625465 transitions. [2020-10-15 22:23:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:09,980 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:09,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:10,363 INFO L225 Difference]: With dead ends: 135358 [2020-10-15 22:23:10,363 INFO L226 Difference]: Without dead ends: 135306 [2020-10-15 22:23:10,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:23:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135306 states. [2020-10-15 22:23:13,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135306 to 38674. [2020-10-15 22:23:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38674 states. [2020-10-15 22:23:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38674 states to 38674 states and 206150 transitions. [2020-10-15 22:23:13,287 INFO L78 Accepts]: Start accepts. Automaton has 38674 states and 206150 transitions. Word has length 25 [2020-10-15 22:23:13,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:13,287 INFO L481 AbstractCegarLoop]: Abstraction has 38674 states and 206150 transitions. [2020-10-15 22:23:13,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38674 states and 206150 transitions. [2020-10-15 22:23:13,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 22:23:13,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:13,289 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:13,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2020-10-15 22:23:13,289 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:13,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:13,290 INFO L82 PathProgramCache]: Analyzing trace with hash -684189109, now seen corresponding path program 6 times [2020-10-15 22:23:13,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:13,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210961280] [2020-10-15 22:23:13,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:23:13,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210961280] [2020-10-15 22:23:13,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:23:13,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:23:13,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342001740] [2020-10-15 22:23:13,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:13,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:13,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:13,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:13,336 INFO L87 Difference]: Start difference. First operand 38674 states and 206150 transitions. Second operand 9 states. [2020-10-15 22:23:15,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:15,222 INFO L93 Difference]: Finished difference Result 134089 states and 619317 transitions. [2020-10-15 22:23:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:23:15,222 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 22:23:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:15,625 INFO L225 Difference]: With dead ends: 134089 [2020-10-15 22:23:15,625 INFO L226 Difference]: Without dead ends: 134037 [2020-10-15 22:23:15,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:23:16,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134037 states. [2020-10-15 22:23:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134037 to 37675. [2020-10-15 22:23:18,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37675 states. [2020-10-15 22:23:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37675 states to 37675 states and 201015 transitions. [2020-10-15 22:23:18,383 INFO L78 Accepts]: Start accepts. Automaton has 37675 states and 201015 transitions. Word has length 25 [2020-10-15 22:23:18,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:18,383 INFO L481 AbstractCegarLoop]: Abstraction has 37675 states and 201015 transitions. [2020-10-15 22:23:18,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 37675 states and 201015 transitions. [2020-10-15 22:23:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:18,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:18,387 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:18,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-10-15 22:23:18,387 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:18,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:18,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1444696671, now seen corresponding path program 1 times [2020-10-15 22:23:18,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:18,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938769177] [2020-10-15 22:23:18,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:23:18,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938769177] [2020-10-15 22:23:18,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343337486] [2020-10-15 22:23:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:18,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:23:18,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:23:18,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:18,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:23:18,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518662100] [2020-10-15 22:23:18,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:23:18,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:18,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:23:18,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:23:18,523 INFO L87 Difference]: Start difference. First operand 37675 states and 201015 transitions. Second operand 9 states. [2020-10-15 22:23:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:19,193 INFO L93 Difference]: Finished difference Result 85349 states and 414605 transitions. [2020-10-15 22:23:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:23:19,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:23:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:19,443 INFO L225 Difference]: With dead ends: 85349 [2020-10-15 22:23:19,443 INFO L226 Difference]: Without dead ends: 85301 [2020-10-15 22:23:19,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:23:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-10-15 22:23:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 38836. [2020-10-15 22:23:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38836 states. [2020-10-15 22:23:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38836 states to 38836 states and 206710 transitions. [2020-10-15 22:23:21,586 INFO L78 Accepts]: Start accepts. Automaton has 38836 states and 206710 transitions. Word has length 27 [2020-10-15 22:23:21,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:21,586 INFO L481 AbstractCegarLoop]: Abstraction has 38836 states and 206710 transitions. [2020-10-15 22:23:21,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:23:21,587 INFO L276 IsEmpty]: Start isEmpty. Operand 38836 states and 206710 transitions. [2020-10-15 22:23:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:21,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:21,590 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:21,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2020-10-15 22:23:21,804 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:21,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1707919879, now seen corresponding path program 1 times [2020-10-15 22:23:21,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:21,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730149907] [2020-10-15 22:23:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:21,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730149907] [2020-10-15 22:23:21,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467488204] [2020-10-15 22:23:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:21,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:21,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:21,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:21,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:21,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:21,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087876332] [2020-10-15 22:23:21,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:21,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:21,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:21,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:21,986 INFO L87 Difference]: Start difference. First operand 38836 states and 206710 transitions. Second operand 13 states. [2020-10-15 22:23:25,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:25,124 INFO L93 Difference]: Finished difference Result 184520 states and 806691 transitions. [2020-10-15 22:23:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:25,125 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:25,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:25,641 INFO L225 Difference]: With dead ends: 184520 [2020-10-15 22:23:25,641 INFO L226 Difference]: Without dead ends: 184502 [2020-10-15 22:23:25,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:23:27,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184502 states. [2020-10-15 22:23:29,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184502 to 38937. [2020-10-15 22:23:29,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38937 states. [2020-10-15 22:23:29,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38937 states to 38937 states and 207195 transitions. [2020-10-15 22:23:29,368 INFO L78 Accepts]: Start accepts. Automaton has 38937 states and 207195 transitions. Word has length 27 [2020-10-15 22:23:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:29,368 INFO L481 AbstractCegarLoop]: Abstraction has 38937 states and 207195 transitions. [2020-10-15 22:23:29,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 38937 states and 207195 transitions. [2020-10-15 22:23:29,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:29,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:29,372 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:29,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-10-15 22:23:29,573 INFO L429 AbstractCegarLoop]: === Iteration 45 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:29,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:29,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1671880519, now seen corresponding path program 2 times [2020-10-15 22:23:29,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:29,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057117883] [2020-10-15 22:23:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:29,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:29,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057117883] [2020-10-15 22:23:29,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961305425] [2020-10-15 22:23:29,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:29,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:23:29,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:29,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:29,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:29,759 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:29,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:29,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:29,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496234691] [2020-10-15 22:23:29,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:29,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:29,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:29,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:29,761 INFO L87 Difference]: Start difference. First operand 38937 states and 207195 transitions. Second operand 13 states. [2020-10-15 22:23:32,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:32,375 INFO L93 Difference]: Finished difference Result 184111 states and 804949 transitions. [2020-10-15 22:23:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:32,376 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:32,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:32,870 INFO L225 Difference]: With dead ends: 184111 [2020-10-15 22:23:32,871 INFO L226 Difference]: Without dead ends: 184087 [2020-10-15 22:23:32,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:23:34,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184087 states. [2020-10-15 22:23:37,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184087 to 38705. [2020-10-15 22:23:37,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38705 states. [2020-10-15 22:23:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38705 states to 38705 states and 205959 transitions. [2020-10-15 22:23:37,566 INFO L78 Accepts]: Start accepts. Automaton has 38705 states and 205959 transitions. Word has length 27 [2020-10-15 22:23:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:37,567 INFO L481 AbstractCegarLoop]: Abstraction has 38705 states and 205959 transitions. [2020-10-15 22:23:37,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 38705 states and 205959 transitions. [2020-10-15 22:23:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:37,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:37,571 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:37,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:37,772 INFO L429 AbstractCegarLoop]: === Iteration 46 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:37,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1200868665, now seen corresponding path program 3 times [2020-10-15 22:23:37,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:37,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061979936] [2020-10-15 22:23:37,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:37,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061979936] [2020-10-15 22:23:37,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116190128] [2020-10-15 22:23:37,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:37,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-15 22:23:37,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:37,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:37,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:37,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:37,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:37,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447459753] [2020-10-15 22:23:37,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:37,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:37,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:37,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:37,958 INFO L87 Difference]: Start difference. First operand 38705 states and 205959 transitions. Second operand 13 states. [2020-10-15 22:23:40,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:40,433 INFO L93 Difference]: Finished difference Result 183485 states and 802028 transitions. [2020-10-15 22:23:40,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:40,434 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:40,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:40,926 INFO L225 Difference]: With dead ends: 183485 [2020-10-15 22:23:40,926 INFO L226 Difference]: Without dead ends: 183467 [2020-10-15 22:23:40,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:23:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183467 states. [2020-10-15 22:23:45,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183467 to 38802. [2020-10-15 22:23:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38802 states. [2020-10-15 22:23:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 206432 transitions. [2020-10-15 22:23:45,674 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 206432 transitions. Word has length 27 [2020-10-15 22:23:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:45,674 INFO L481 AbstractCegarLoop]: Abstraction has 38802 states and 206432 transitions. [2020-10-15 22:23:45,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 206432 transitions. [2020-10-15 22:23:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:45,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:45,678 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:45,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:45,878 INFO L429 AbstractCegarLoop]: === Iteration 47 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:45,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1222057785, now seen corresponding path program 4 times [2020-10-15 22:23:45,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:45,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48799384] [2020-10-15 22:23:45,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:45,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48799384] [2020-10-15 22:23:45,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501748805] [2020-10-15 22:23:45,945 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:46,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:23:46,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:46,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:46,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:46,056 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:46,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:46,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:46,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070247240] [2020-10-15 22:23:46,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:46,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:46,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:46,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:46,058 INFO L87 Difference]: Start difference. First operand 38802 states and 206432 transitions. Second operand 13 states. [2020-10-15 22:23:48,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:48,595 INFO L93 Difference]: Finished difference Result 183194 states and 800691 transitions. [2020-10-15 22:23:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:48,596 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:49,092 INFO L225 Difference]: With dead ends: 183194 [2020-10-15 22:23:49,092 INFO L226 Difference]: Without dead ends: 183170 [2020-10-15 22:23:49,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:23:50,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183170 states. [2020-10-15 22:23:52,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183170 to 38578. [2020-10-15 22:23:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38578 states. [2020-10-15 22:23:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38578 states to 38578 states and 205224 transitions. [2020-10-15 22:23:52,901 INFO L78 Accepts]: Start accepts. Automaton has 38578 states and 205224 transitions. Word has length 27 [2020-10-15 22:23:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:23:52,901 INFO L481 AbstractCegarLoop]: Abstraction has 38578 states and 205224 transitions. [2020-10-15 22:23:52,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:23:52,901 INFO L276 IsEmpty]: Start isEmpty. Operand 38578 states and 205224 transitions. [2020-10-15 22:23:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:23:52,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:23:52,905 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:23:53,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:53,105 INFO L429 AbstractCegarLoop]: === Iteration 48 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:23:53,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:23:53,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1510994617, now seen corresponding path program 5 times [2020-10-15 22:23:53,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:23:53,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268270785] [2020-10-15 22:23:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:23:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:23:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:53,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268270785] [2020-10-15 22:23:53,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753421228] [2020-10-15 22:23:53,175 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:23:53,266 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 22:23:53,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:23:53,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:23:53,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:23:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:23:53,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:23:53,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:23:53,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111614164] [2020-10-15 22:23:53,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:23:53,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:23:53,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:23:53,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:23:53,290 INFO L87 Difference]: Start difference. First operand 38578 states and 205224 transitions. Second operand 13 states. [2020-10-15 22:23:56,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:23:56,476 INFO L93 Difference]: Finished difference Result 182584 states and 797818 transitions. [2020-10-15 22:23:56,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:23:56,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:23:56,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:23:56,980 INFO L225 Difference]: With dead ends: 182584 [2020-10-15 22:23:56,981 INFO L226 Difference]: Without dead ends: 182566 [2020-10-15 22:23:56,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:23:58,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182566 states. [2020-10-15 22:24:00,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182566 to 38683. [2020-10-15 22:24:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38683 states. [2020-10-15 22:24:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38683 states to 38683 states and 205717 transitions. [2020-10-15 22:24:00,754 INFO L78 Accepts]: Start accepts. Automaton has 38683 states and 205717 transitions. Word has length 27 [2020-10-15 22:24:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:00,754 INFO L481 AbstractCegarLoop]: Abstraction has 38683 states and 205717 transitions. [2020-10-15 22:24:00,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:00,754 INFO L276 IsEmpty]: Start isEmpty. Operand 38683 states and 205717 transitions. [2020-10-15 22:24:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:00,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:00,758 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:00,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2020-10-15 22:24:00,959 INFO L429 AbstractCegarLoop]: === Iteration 49 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:00,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1496144377, now seen corresponding path program 6 times [2020-10-15 22:24:00,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:00,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112217440] [2020-10-15 22:24:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:24:01,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112217440] [2020-10-15 22:24:01,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399699042] [2020-10-15 22:24:01,029 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:01,120 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-10-15 22:24:01,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:01,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:01,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-15 22:24:01,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:01,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:01,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820659199] [2020-10-15 22:24:01,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:01,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:01,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:01,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:01,148 INFO L87 Difference]: Start difference. First operand 38683 states and 205717 transitions. Second operand 13 states. [2020-10-15 22:24:03,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:03,609 INFO L93 Difference]: Finished difference Result 182167 states and 796056 transitions. [2020-10-15 22:24:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:03,610 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:04,100 INFO L225 Difference]: With dead ends: 182167 [2020-10-15 22:24:04,100 INFO L226 Difference]: Without dead ends: 182139 [2020-10-15 22:24:04,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182139 states. [2020-10-15 22:24:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182139 to 38439. [2020-10-15 22:24:08,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38439 states. [2020-10-15 22:24:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38439 states to 38439 states and 204452 transitions. [2020-10-15 22:24:08,493 INFO L78 Accepts]: Start accepts. Automaton has 38439 states and 204452 transitions. Word has length 27 [2020-10-15 22:24:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:08,493 INFO L481 AbstractCegarLoop]: Abstraction has 38439 states and 204452 transitions. [2020-10-15 22:24:08,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38439 states and 204452 transitions. [2020-10-15 22:24:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:08,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:08,497 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:08,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2020-10-15 22:24:08,697 INFO L429 AbstractCegarLoop]: === Iteration 50 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1123724041, now seen corresponding path program 7 times [2020-10-15 22:24:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:08,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360278904] [2020-10-15 22:24:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:08,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360278904] [2020-10-15 22:24:08,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471409434] [2020-10-15 22:24:08,769 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:08,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:08,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:08,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:08,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:08,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212683958] [2020-10-15 22:24:08,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:08,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:08,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:08,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:08,884 INFO L87 Difference]: Start difference. First operand 38439 states and 204452 transitions. Second operand 13 states. [2020-10-15 22:24:11,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:11,394 INFO L93 Difference]: Finished difference Result 183258 states and 800935 transitions. [2020-10-15 22:24:11,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:11,394 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:11,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:11,884 INFO L225 Difference]: With dead ends: 183258 [2020-10-15 22:24:11,884 INFO L226 Difference]: Without dead ends: 183240 [2020-10-15 22:24:11,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:13,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183240 states. [2020-10-15 22:24:16,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183240 to 38278. [2020-10-15 22:24:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38278 states. [2020-10-15 22:24:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 203659 transitions. [2020-10-15 22:24:16,534 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 203659 transitions. Word has length 27 [2020-10-15 22:24:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:16,535 INFO L481 AbstractCegarLoop]: Abstraction has 38278 states and 203659 transitions. [2020-10-15 22:24:16,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 203659 transitions. [2020-10-15 22:24:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:16,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:16,538 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:16,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2020-10-15 22:24:16,739 INFO L429 AbstractCegarLoop]: === Iteration 51 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:16,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:16,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1087684681, now seen corresponding path program 8 times [2020-10-15 22:24:16,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:16,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634182205] [2020-10-15 22:24:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:16,812 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:16,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634182205] [2020-10-15 22:24:16,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508025460] [2020-10-15 22:24:16,813 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:16,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:24:16,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:16,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:16,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:16,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:16,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:16,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145842556] [2020-10-15 22:24:16,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:16,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:16,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:16,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:16,928 INFO L87 Difference]: Start difference. First operand 38278 states and 203659 transitions. Second operand 13 states. [2020-10-15 22:24:19,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:19,456 INFO L93 Difference]: Finished difference Result 182849 states and 799193 transitions. [2020-10-15 22:24:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:19,456 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:19,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:19,946 INFO L225 Difference]: With dead ends: 182849 [2020-10-15 22:24:19,946 INFO L226 Difference]: Without dead ends: 182825 [2020-10-15 22:24:19,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182825 states. [2020-10-15 22:24:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182825 to 37884. [2020-10-15 22:24:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37884 states. [2020-10-15 22:24:23,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37884 states to 37884 states and 201622 transitions. [2020-10-15 22:24:23,741 INFO L78 Accepts]: Start accepts. Automaton has 37884 states and 201622 transitions. Word has length 27 [2020-10-15 22:24:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:23,741 INFO L481 AbstractCegarLoop]: Abstraction has 37884 states and 201622 transitions. [2020-10-15 22:24:23,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:23,741 INFO L276 IsEmpty]: Start isEmpty. Operand 37884 states and 201622 transitions. [2020-10-15 22:24:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:23,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:23,745 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:23,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2020-10-15 22:24:23,946 INFO L429 AbstractCegarLoop]: === Iteration 52 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:23,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2028959203, now seen corresponding path program 9 times [2020-10-15 22:24:23,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:23,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294271391] [2020-10-15 22:24:23,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:24,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294271391] [2020-10-15 22:24:24,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44172653] [2020-10-15 22:24:24,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:24,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:24:24,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:24,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:24,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:24,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:24,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:24,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572680036] [2020-10-15 22:24:24,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:24,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:24,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:24,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:24,130 INFO L87 Difference]: Start difference. First operand 37884 states and 201622 transitions. Second operand 13 states. [2020-10-15 22:24:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:26,971 INFO L93 Difference]: Finished difference Result 183773 states and 803153 transitions. [2020-10-15 22:24:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:26,972 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:27,465 INFO L225 Difference]: With dead ends: 183773 [2020-10-15 22:24:27,465 INFO L226 Difference]: Without dead ends: 183755 [2020-10-15 22:24:27,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183755 states. [2020-10-15 22:24:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183755 to 37981. [2020-10-15 22:24:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37981 states. [2020-10-15 22:24:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 202095 transitions. [2020-10-15 22:24:31,283 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 202095 transitions. Word has length 27 [2020-10-15 22:24:31,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:31,283 INFO L481 AbstractCegarLoop]: Abstraction has 37981 states and 202095 transitions. [2020-10-15 22:24:31,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:31,283 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 202095 transitions. [2020-10-15 22:24:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:31,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:31,288 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:31,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2020-10-15 22:24:31,501 INFO L429 AbstractCegarLoop]: === Iteration 53 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:31,501 INFO L82 PathProgramCache]: Analyzing trace with hash 2051487523, now seen corresponding path program 10 times [2020-10-15 22:24:31,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:31,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671121377] [2020-10-15 22:24:31,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:31,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671121377] [2020-10-15 22:24:31,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765880755] [2020-10-15 22:24:31,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:31,656 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:24:31,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:31,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:31,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:31,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:31,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:31,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089654363] [2020-10-15 22:24:31,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:31,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:31,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:31,681 INFO L87 Difference]: Start difference. First operand 37981 states and 202095 transitions. Second operand 13 states. [2020-10-15 22:24:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:34,383 INFO L93 Difference]: Finished difference Result 184574 states and 806606 transitions. [2020-10-15 22:24:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:34,384 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:35,798 INFO L225 Difference]: With dead ends: 184574 [2020-10-15 22:24:35,798 INFO L226 Difference]: Without dead ends: 184550 [2020-10-15 22:24:35,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184550 states. [2020-10-15 22:24:39,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184550 to 37723. [2020-10-15 22:24:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37723 states. [2020-10-15 22:24:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37723 states to 37723 states and 200669 transitions. [2020-10-15 22:24:39,424 INFO L78 Accepts]: Start accepts. Automaton has 37723 states and 200669 transitions. Word has length 27 [2020-10-15 22:24:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:39,424 INFO L481 AbstractCegarLoop]: Abstraction has 37723 states and 200669 transitions. [2020-10-15 22:24:39,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 37723 states and 200669 transitions. [2020-10-15 22:24:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:39,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:39,428 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:39,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:39,635 INFO L429 AbstractCegarLoop]: === Iteration 54 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:39,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1310776872, now seen corresponding path program 1 times [2020-10-15 22:24:39,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:39,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901120691] [2020-10-15 22:24:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:24:39,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901120691] [2020-10-15 22:24:39,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54491745] [2020-10-15 22:24:39,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:39,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:24:39,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:24:39,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:39,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:24:39,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931973500] [2020-10-15 22:24:39,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:24:39,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:39,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:24:39,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:24:39,785 INFO L87 Difference]: Start difference. First operand 37723 states and 200669 transitions. Second operand 9 states. [2020-10-15 22:24:40,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:40,467 INFO L93 Difference]: Finished difference Result 87418 states and 424333 transitions. [2020-10-15 22:24:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:24:40,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:24:40,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:40,728 INFO L225 Difference]: With dead ends: 87418 [2020-10-15 22:24:40,728 INFO L226 Difference]: Without dead ends: 87366 [2020-10-15 22:24:40,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:24:41,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87366 states. [2020-10-15 22:24:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87366 to 39181. [2020-10-15 22:24:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39181 states. [2020-10-15 22:24:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39181 states to 39181 states and 208301 transitions. [2020-10-15 22:24:42,905 INFO L78 Accepts]: Start accepts. Automaton has 39181 states and 208301 transitions. Word has length 27 [2020-10-15 22:24:42,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:42,905 INFO L481 AbstractCegarLoop]: Abstraction has 39181 states and 208301 transitions. [2020-10-15 22:24:42,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:24:42,905 INFO L276 IsEmpty]: Start isEmpty. Operand 39181 states and 208301 transitions. [2020-10-15 22:24:42,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:42,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:42,909 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:43,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2020-10-15 22:24:43,110 INFO L429 AbstractCegarLoop]: === Iteration 55 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:43,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1955882141, now seen corresponding path program 11 times [2020-10-15 22:24:43,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:43,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068174194] [2020-10-15 22:24:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:43,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068174194] [2020-10-15 22:24:43,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661621756] [2020-10-15 22:24:43,181 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:43,270 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-10-15 22:24:43,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:43,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:43,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:43,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:43,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:43,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404821507] [2020-10-15 22:24:43,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:43,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:43,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:43,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:43,295 INFO L87 Difference]: Start difference. First operand 39181 states and 208301 transitions. Second operand 13 states. [2020-10-15 22:24:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:46,070 INFO L93 Difference]: Finished difference Result 181204 states and 790360 transitions. [2020-10-15 22:24:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:46,071 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:46,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:46,559 INFO L225 Difference]: With dead ends: 181204 [2020-10-15 22:24:46,560 INFO L226 Difference]: Without dead ends: 181186 [2020-10-15 22:24:46,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:48,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181186 states. [2020-10-15 22:24:50,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181186 to 39282. [2020-10-15 22:24:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39282 states. [2020-10-15 22:24:50,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39282 states to 39282 states and 208786 transitions. [2020-10-15 22:24:50,373 INFO L78 Accepts]: Start accepts. Automaton has 39282 states and 208786 transitions. Word has length 27 [2020-10-15 22:24:50,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:50,373 INFO L481 AbstractCegarLoop]: Abstraction has 39282 states and 208786 transitions. [2020-10-15 22:24:50,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:50,373 INFO L276 IsEmpty]: Start isEmpty. Operand 39282 states and 208786 transitions. [2020-10-15 22:24:50,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:50,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:50,378 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:50,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:50,578 INFO L429 AbstractCegarLoop]: === Iteration 56 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:50,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:50,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1969393181, now seen corresponding path program 12 times [2020-10-15 22:24:50,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:50,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292531148] [2020-10-15 22:24:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:50,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292531148] [2020-10-15 22:24:50,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410692332] [2020-10-15 22:24:50,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:24:50,742 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-10-15 22:24:50,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:24:50,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-15 22:24:50,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:24:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:24:50,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:24:50,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-10-15 22:24:50,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103273883] [2020-10-15 22:24:50,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 22:24:50,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:50,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 22:24:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-10-15 22:24:50,770 INFO L87 Difference]: Start difference. First operand 39282 states and 208786 transitions. Second operand 13 states. [2020-10-15 22:24:54,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:24:54,087 INFO L93 Difference]: Finished difference Result 181788 states and 792986 transitions. [2020-10-15 22:24:54,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:24:54,087 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-10-15 22:24:54,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:24:54,580 INFO L225 Difference]: With dead ends: 181788 [2020-10-15 22:24:54,581 INFO L226 Difference]: Without dead ends: 181760 [2020-10-15 22:24:54,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-10-15 22:24:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181760 states. [2020-10-15 22:24:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181760 to 39046. [2020-10-15 22:24:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39046 states. [2020-10-15 22:24:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39046 states to 39046 states and 207541 transitions. [2020-10-15 22:24:58,194 INFO L78 Accepts]: Start accepts. Automaton has 39046 states and 207541 transitions. Word has length 27 [2020-10-15 22:24:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:24:58,195 INFO L481 AbstractCegarLoop]: Abstraction has 39046 states and 207541 transitions. [2020-10-15 22:24:58,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 22:24:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 39046 states and 207541 transitions. [2020-10-15 22:24:58,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:24:58,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:24:58,200 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:24:58,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable130 [2020-10-15 22:24:58,414 INFO L429 AbstractCegarLoop]: === Iteration 57 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:24:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:24:58,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1977356605, now seen corresponding path program 13 times [2020-10-15 22:24:58,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:24:58,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120031216] [2020-10-15 22:24:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:24:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:24:58,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:24:58,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120031216] [2020-10-15 22:24:58,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:24:58,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:24:58,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016792291] [2020-10-15 22:24:58,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:24:58,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:24:58,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:24:58,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:24:58,484 INFO L87 Difference]: Start difference. First operand 39046 states and 207541 transitions. Second operand 11 states. [2020-10-15 22:25:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:00,979 INFO L93 Difference]: Finished difference Result 182119 states and 794828 transitions. [2020-10-15 22:25:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:00,980 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:01,475 INFO L225 Difference]: With dead ends: 182119 [2020-10-15 22:25:01,475 INFO L226 Difference]: Without dead ends: 182101 [2020-10-15 22:25:01,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182101 states. [2020-10-15 22:25:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182101 to 38885. [2020-10-15 22:25:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38885 states. [2020-10-15 22:25:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38885 states to 38885 states and 206748 transitions. [2020-10-15 22:25:06,124 INFO L78 Accepts]: Start accepts. Automaton has 38885 states and 206748 transitions. Word has length 27 [2020-10-15 22:25:06,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:06,124 INFO L481 AbstractCegarLoop]: Abstraction has 38885 states and 206748 transitions. [2020-10-15 22:25:06,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:06,124 INFO L276 IsEmpty]: Start isEmpty. Operand 38885 states and 206748 transitions. [2020-10-15 22:25:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:06,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:06,128 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:06,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2020-10-15 22:25:06,129 INFO L429 AbstractCegarLoop]: === Iteration 58 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:06,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1956167485, now seen corresponding path program 14 times [2020-10-15 22:25:06,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:06,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646232731] [2020-10-15 22:25:06,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:06,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646232731] [2020-10-15 22:25:06,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:06,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:06,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098166718] [2020-10-15 22:25:06,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:06,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:06,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:06,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:06,202 INFO L87 Difference]: Start difference. First operand 38885 states and 206748 transitions. Second operand 11 states. [2020-10-15 22:25:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:08,651 INFO L93 Difference]: Finished difference Result 182770 states and 797712 transitions. [2020-10-15 22:25:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:08,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:08,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:09,147 INFO L225 Difference]: With dead ends: 182770 [2020-10-15 22:25:09,147 INFO L226 Difference]: Without dead ends: 182746 [2020-10-15 22:25:09,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182746 states. [2020-10-15 22:25:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182746 to 38499. [2020-10-15 22:25:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38499 states. [2020-10-15 22:25:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38499 states to 38499 states and 204735 transitions. [2020-10-15 22:25:13,863 INFO L78 Accepts]: Start accepts. Automaton has 38499 states and 204735 transitions. Word has length 27 [2020-10-15 22:25:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:13,864 INFO L481 AbstractCegarLoop]: Abstraction has 38499 states and 204735 transitions. [2020-10-15 22:25:13,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 38499 states and 204735 transitions. [2020-10-15 22:25:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:13,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:13,869 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:13,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2020-10-15 22:25:13,869 INFO L429 AbstractCegarLoop]: === Iteration 59 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:13,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:13,869 INFO L82 PathProgramCache]: Analyzing trace with hash -690385405, now seen corresponding path program 15 times [2020-10-15 22:25:13,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:13,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64386107] [2020-10-15 22:25:13,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:13,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64386107] [2020-10-15 22:25:13,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:13,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:13,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920791218] [2020-10-15 22:25:13,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:13,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:13,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:13,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:13,940 INFO L87 Difference]: Start difference. First operand 38499 states and 204735 transitions. Second operand 11 states. [2020-10-15 22:25:16,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:16,453 INFO L93 Difference]: Finished difference Result 181153 states and 790470 transitions. [2020-10-15 22:25:16,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:16,454 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:16,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:17,020 INFO L225 Difference]: With dead ends: 181153 [2020-10-15 22:25:17,020 INFO L226 Difference]: Without dead ends: 181135 [2020-10-15 22:25:17,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1561 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:18,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181135 states. [2020-10-15 22:25:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181135 to 38208. [2020-10-15 22:25:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38208 states. [2020-10-15 22:25:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38208 states to 38208 states and 203398 transitions. [2020-10-15 22:25:20,571 INFO L78 Accepts]: Start accepts. Automaton has 38208 states and 203398 transitions. Word has length 27 [2020-10-15 22:25:20,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:20,572 INFO L481 AbstractCegarLoop]: Abstraction has 38208 states and 203398 transitions. [2020-10-15 22:25:20,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38208 states and 203398 transitions. [2020-10-15 22:25:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:20,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:20,575 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:20,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2020-10-15 22:25:20,576 INFO L429 AbstractCegarLoop]: === Iteration 60 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash -667857085, now seen corresponding path program 16 times [2020-10-15 22:25:20,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:20,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260329926] [2020-10-15 22:25:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:20,643 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:20,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260329926] [2020-10-15 22:25:20,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:20,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:20,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290299577] [2020-10-15 22:25:20,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:20,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:20,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:20,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:20,645 INFO L87 Difference]: Start difference. First operand 38208 states and 203398 transitions. Second operand 11 states. [2020-10-15 22:25:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:23,545 INFO L93 Difference]: Finished difference Result 181957 states and 793915 transitions. [2020-10-15 22:25:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:23,546 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:24,059 INFO L225 Difference]: With dead ends: 181957 [2020-10-15 22:25:24,059 INFO L226 Difference]: Without dead ends: 181933 [2020-10-15 22:25:24,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:25,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181933 states. [2020-10-15 22:25:27,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181933 to 37822. [2020-10-15 22:25:27,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37822 states. [2020-10-15 22:25:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37822 states to 37822 states and 201385 transitions. [2020-10-15 22:25:27,669 INFO L78 Accepts]: Start accepts. Automaton has 37822 states and 201385 transitions. Word has length 27 [2020-10-15 22:25:27,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:27,669 INFO L481 AbstractCegarLoop]: Abstraction has 37822 states and 201385 transitions. [2020-10-15 22:25:27,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:27,669 INFO L276 IsEmpty]: Start isEmpty. Operand 37822 states and 201385 transitions. [2020-10-15 22:25:27,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:27,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:27,673 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:27,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2020-10-15 22:25:27,673 INFO L429 AbstractCegarLoop]: === Iteration 61 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:27,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1485355099, now seen corresponding path program 1 times [2020-10-15 22:25:27,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:27,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970664713] [2020-10-15 22:25:27,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:27,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970664713] [2020-10-15 22:25:27,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478592736] [2020-10-15 22:25:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:25:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:27,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:25:27,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:25:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:27,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:25:27,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-15 22:25:27,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746616322] [2020-10-15 22:25:27,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:25:27,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:27,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:25:27,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:25:27,811 INFO L87 Difference]: Start difference. First operand 37822 states and 201385 transitions. Second operand 9 states. [2020-10-15 22:25:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:28,529 INFO L93 Difference]: Finished difference Result 90020 states and 438095 transitions. [2020-10-15 22:25:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:28,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-15 22:25:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:28,802 INFO L225 Difference]: With dead ends: 90020 [2020-10-15 22:25:28,803 INFO L226 Difference]: Without dead ends: 89960 [2020-10-15 22:25:28,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-10-15 22:25:29,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89960 states. [2020-10-15 22:25:31,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89960 to 39411. [2020-10-15 22:25:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39411 states. [2020-10-15 22:25:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 210063 transitions. [2020-10-15 22:25:31,722 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 210063 transitions. Word has length 27 [2020-10-15 22:25:31,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:31,722 INFO L481 AbstractCegarLoop]: Abstraction has 39411 states and 210063 transitions. [2020-10-15 22:25:31,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:25:31,722 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 210063 transitions. [2020-10-15 22:25:31,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:31,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:31,727 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:31,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2020-10-15 22:25:31,927 INFO L429 AbstractCegarLoop]: === Iteration 62 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:31,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:31,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1781288445, now seen corresponding path program 17 times [2020-10-15 22:25:31,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:31,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208307879] [2020-10-15 22:25:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:31,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208307879] [2020-10-15 22:25:31,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:31,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:31,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131413269] [2020-10-15 22:25:31,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:31,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:31,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:31,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:31,999 INFO L87 Difference]: Start difference. First operand 39411 states and 210063 transitions. Second operand 11 states. [2020-10-15 22:25:34,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:34,475 INFO L93 Difference]: Finished difference Result 181463 states and 790579 transitions. [2020-10-15 22:25:34,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:34,476 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:34,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:34,971 INFO L225 Difference]: With dead ends: 181463 [2020-10-15 22:25:34,971 INFO L226 Difference]: Without dead ends: 181445 [2020-10-15 22:25:34,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181445 states. [2020-10-15 22:25:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181445 to 39508. [2020-10-15 22:25:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39508 states. [2020-10-15 22:25:38,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 210536 transitions. [2020-10-15 22:25:38,810 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 210536 transitions. Word has length 27 [2020-10-15 22:25:38,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:38,810 INFO L481 AbstractCegarLoop]: Abstraction has 39508 states and 210536 transitions. [2020-10-15 22:25:38,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:38,810 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 210536 transitions. [2020-10-15 22:25:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:38,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:38,814 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:38,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2020-10-15 22:25:38,815 INFO L429 AbstractCegarLoop]: === Iteration 63 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:38,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1779949245, now seen corresponding path program 18 times [2020-10-15 22:25:38,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:38,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444419732] [2020-10-15 22:25:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:25:38,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444419732] [2020-10-15 22:25:38,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:38,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:25:38,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641288606] [2020-10-15 22:25:38,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:25:38,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:38,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:25:38,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:25:38,890 INFO L87 Difference]: Start difference. First operand 39508 states and 210536 transitions. Second operand 11 states. [2020-10-15 22:25:42,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:42,005 INFO L93 Difference]: Finished difference Result 181054 states and 788837 transitions. [2020-10-15 22:25:42,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:25:42,006 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:25:42,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:42,507 INFO L225 Difference]: With dead ends: 181054 [2020-10-15 22:25:42,507 INFO L226 Difference]: Without dead ends: 181026 [2020-10-15 22:25:42,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:25:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181026 states. [2020-10-15 22:25:46,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181026 to 39280. [2020-10-15 22:25:46,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39280 states. [2020-10-15 22:25:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39280 states to 39280 states and 209319 transitions. [2020-10-15 22:25:46,241 INFO L78 Accepts]: Start accepts. Automaton has 39280 states and 209319 transitions. Word has length 27 [2020-10-15 22:25:46,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:46,241 INFO L481 AbstractCegarLoop]: Abstraction has 39280 states and 209319 transitions. [2020-10-15 22:25:46,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:25:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand 39280 states and 209319 transitions. [2020-10-15 22:25:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:46,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:46,246 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:46,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2020-10-15 22:25:46,246 INFO L429 AbstractCegarLoop]: === Iteration 64 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:46,247 INFO L82 PathProgramCache]: Analyzing trace with hash -639654315, now seen corresponding path program 2 times [2020-10-15 22:25:46,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:46,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731748494] [2020-10-15 22:25:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:46,279 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:25:46,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731748494] [2020-10-15 22:25:46,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:46,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:46,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378306167] [2020-10-15 22:25:46,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:46,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:46,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:46,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:46,281 INFO L87 Difference]: Start difference. First operand 39280 states and 209319 transitions. Second operand 7 states. [2020-10-15 22:25:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:46,971 INFO L93 Difference]: Finished difference Result 90032 states and 438659 transitions. [2020-10-15 22:25:46,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:46,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:46,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:47,241 INFO L225 Difference]: With dead ends: 90032 [2020-10-15 22:25:47,241 INFO L226 Difference]: Without dead ends: 89955 [2020-10-15 22:25:47,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:25:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89955 states. [2020-10-15 22:25:50,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89955 to 40208. [2020-10-15 22:25:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40208 states. [2020-10-15 22:25:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40208 states to 40208 states and 214272 transitions. [2020-10-15 22:25:50,218 INFO L78 Accepts]: Start accepts. Automaton has 40208 states and 214272 transitions. Word has length 27 [2020-10-15 22:25:50,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:50,219 INFO L481 AbstractCegarLoop]: Abstraction has 40208 states and 214272 transitions. [2020-10-15 22:25:50,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 40208 states and 214272 transitions. [2020-10-15 22:25:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:50,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:50,223 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:50,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2020-10-15 22:25:50,224 INFO L429 AbstractCegarLoop]: === Iteration 65 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:50,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:50,224 INFO L82 PathProgramCache]: Analyzing trace with hash -639652920, now seen corresponding path program 2 times [2020-10-15 22:25:50,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:50,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11152339] [2020-10-15 22:25:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:25:50,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11152339] [2020-10-15 22:25:50,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:50,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:50,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143478673] [2020-10-15 22:25:50,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:50,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:50,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:50,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:50,258 INFO L87 Difference]: Start difference. First operand 40208 states and 214272 transitions. Second operand 7 states. [2020-10-15 22:25:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:50,930 INFO L93 Difference]: Finished difference Result 90501 states and 440366 transitions. [2020-10-15 22:25:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:50,931 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:51,199 INFO L225 Difference]: With dead ends: 90501 [2020-10-15 22:25:51,200 INFO L226 Difference]: Without dead ends: 90424 [2020-10-15 22:25:51,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:25:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90424 states. [2020-10-15 22:25:53,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90424 to 40817. [2020-10-15 22:25:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40817 states. [2020-10-15 22:25:53,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40817 states to 40817 states and 217501 transitions. [2020-10-15 22:25:53,449 INFO L78 Accepts]: Start accepts. Automaton has 40817 states and 217501 transitions. Word has length 27 [2020-10-15 22:25:53,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:53,449 INFO L481 AbstractCegarLoop]: Abstraction has 40817 states and 217501 transitions. [2020-10-15 22:25:53,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:53,450 INFO L276 IsEmpty]: Start isEmpty. Operand 40817 states and 217501 transitions. [2020-10-15 22:25:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:53,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:53,454 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:53,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2020-10-15 22:25:53,455 INFO L429 AbstractCegarLoop]: === Iteration 66 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash -639668389, now seen corresponding path program 2 times [2020-10-15 22:25:53,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:53,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321633500] [2020-10-15 22:25:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:25:53,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321633500] [2020-10-15 22:25:53,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:53,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:53,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266175405] [2020-10-15 22:25:53,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:53,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:53,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:53,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:53,489 INFO L87 Difference]: Start difference. First operand 40817 states and 217501 transitions. Second operand 7 states. [2020-10-15 22:25:54,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:54,198 INFO L93 Difference]: Finished difference Result 91389 states and 444541 transitions. [2020-10-15 22:25:54,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:54,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:54,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:54,475 INFO L225 Difference]: With dead ends: 91389 [2020-10-15 22:25:54,475 INFO L226 Difference]: Without dead ends: 91312 [2020-10-15 22:25:54,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:25:55,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91312 states. [2020-10-15 22:25:56,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91312 to 41653. [2020-10-15 22:25:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41653 states. [2020-10-15 22:25:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41653 states to 41653 states and 221647 transitions. [2020-10-15 22:25:56,779 INFO L78 Accepts]: Start accepts. Automaton has 41653 states and 221647 transitions. Word has length 27 [2020-10-15 22:25:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:25:56,779 INFO L481 AbstractCegarLoop]: Abstraction has 41653 states and 221647 transitions. [2020-10-15 22:25:56,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:25:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 41653 states and 221647 transitions. [2020-10-15 22:25:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:25:56,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:25:56,784 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:25:56,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2020-10-15 22:25:56,784 INFO L429 AbstractCegarLoop]: === Iteration 67 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:25:56,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:25:56,784 INFO L82 PathProgramCache]: Analyzing trace with hash -639630848, now seen corresponding path program 1 times [2020-10-15 22:25:56,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:25:56,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909532720] [2020-10-15 22:25:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:25:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:25:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:25:56,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909532720] [2020-10-15 22:25:56,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:25:56,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:25:56,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874559232] [2020-10-15 22:25:56,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:25:56,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:25:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:25:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:25:56,817 INFO L87 Difference]: Start difference. First operand 41653 states and 221647 transitions. Second operand 7 states. [2020-10-15 22:25:58,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:25:58,147 INFO L93 Difference]: Finished difference Result 96066 states and 468402 transitions. [2020-10-15 22:25:58,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:25:58,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:25:58,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:25:58,448 INFO L225 Difference]: With dead ends: 96066 [2020-10-15 22:25:58,448 INFO L226 Difference]: Without dead ends: 95989 [2020-10-15 22:25:58,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:25:59,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95989 states. [2020-10-15 22:26:00,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95989 to 44034. [2020-10-15 22:26:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44034 states. [2020-10-15 22:26:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44034 states to 44034 states and 234037 transitions. [2020-10-15 22:26:00,782 INFO L78 Accepts]: Start accepts. Automaton has 44034 states and 234037 transitions. Word has length 27 [2020-10-15 22:26:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:00,782 INFO L481 AbstractCegarLoop]: Abstraction has 44034 states and 234037 transitions. [2020-10-15 22:26:00,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:26:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 44034 states and 234037 transitions. [2020-10-15 22:26:00,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:00,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:00,786 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:00,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2020-10-15 22:26:00,787 INFO L429 AbstractCegarLoop]: === Iteration 68 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:00,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:00,787 INFO L82 PathProgramCache]: Analyzing trace with hash -616120448, now seen corresponding path program 2 times [2020-10-15 22:26:00,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:00,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348033841] [2020-10-15 22:26:00,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:26:00,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348033841] [2020-10-15 22:26:00,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:00,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:26:00,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092723426] [2020-10-15 22:26:00,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:26:00,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:00,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:26:00,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:26:00,821 INFO L87 Difference]: Start difference. First operand 44034 states and 234037 transitions. Second operand 7 states. [2020-10-15 22:26:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:01,527 INFO L93 Difference]: Finished difference Result 97335 states and 474289 transitions. [2020-10-15 22:26:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:26:01,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-15 22:26:01,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:01,820 INFO L225 Difference]: With dead ends: 97335 [2020-10-15 22:26:01,820 INFO L226 Difference]: Without dead ends: 97258 [2020-10-15 22:26:01,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:26:02,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97258 states. [2020-10-15 22:26:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97258 to 45832. [2020-10-15 22:26:04,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45832 states. [2020-10-15 22:26:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45832 states to 45832 states and 243883 transitions. [2020-10-15 22:26:04,255 INFO L78 Accepts]: Start accepts. Automaton has 45832 states and 243883 transitions. Word has length 27 [2020-10-15 22:26:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:04,255 INFO L481 AbstractCegarLoop]: Abstraction has 45832 states and 243883 transitions. [2020-10-15 22:26:04,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:26:04,255 INFO L276 IsEmpty]: Start isEmpty. Operand 45832 states and 243883 transitions. [2020-10-15 22:26:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:04,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:04,260 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:04,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2020-10-15 22:26:04,260 INFO L429 AbstractCegarLoop]: === Iteration 69 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash -263020797, now seen corresponding path program 19 times [2020-10-15 22:26:04,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:04,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788880049] [2020-10-15 22:26:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:04,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788880049] [2020-10-15 22:26:04,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:04,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:04,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435016725] [2020-10-15 22:26:04,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:04,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:04,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:04,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:04,332 INFO L87 Difference]: Start difference. First operand 45832 states and 243883 transitions. Second operand 11 states. [2020-10-15 22:26:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:07,712 INFO L93 Difference]: Finished difference Result 206462 states and 913897 transitions. [2020-10-15 22:26:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:07,713 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:07,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:08,310 INFO L225 Difference]: With dead ends: 206462 [2020-10-15 22:26:08,310 INFO L226 Difference]: Without dead ends: 206438 [2020-10-15 22:26:08,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206438 states. [2020-10-15 22:26:12,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206438 to 45730. [2020-10-15 22:26:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45730 states. [2020-10-15 22:26:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45730 states to 45730 states and 243333 transitions. [2020-10-15 22:26:12,667 INFO L78 Accepts]: Start accepts. Automaton has 45730 states and 243333 transitions. Word has length 27 [2020-10-15 22:26:12,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:12,667 INFO L481 AbstractCegarLoop]: Abstraction has 45730 states and 243333 transitions. [2020-10-15 22:26:12,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 45730 states and 243333 transitions. [2020-10-15 22:26:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:12,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:12,674 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:12,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2020-10-15 22:26:12,674 INFO L429 AbstractCegarLoop]: === Iteration 70 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:12,674 INFO L82 PathProgramCache]: Analyzing trace with hash -277871037, now seen corresponding path program 20 times [2020-10-15 22:26:12,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:12,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636153990] [2020-10-15 22:26:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:12,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636153990] [2020-10-15 22:26:12,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:12,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:12,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369787817] [2020-10-15 22:26:12,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:12,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:12,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:12,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:12,765 INFO L87 Difference]: Start difference. First operand 45730 states and 243333 transitions. Second operand 11 states. [2020-10-15 22:26:15,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:15,372 INFO L93 Difference]: Finished difference Result 205970 states and 911791 transitions. [2020-10-15 22:26:15,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:15,373 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:15,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:15,944 INFO L225 Difference]: With dead ends: 205970 [2020-10-15 22:26:15,944 INFO L226 Difference]: Without dead ends: 205940 [2020-10-15 22:26:15,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1548 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205940 states. [2020-10-15 22:26:20,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205940 to 45335. [2020-10-15 22:26:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45335 states. [2020-10-15 22:26:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45335 states to 45335 states and 241261 transitions. [2020-10-15 22:26:20,845 INFO L78 Accepts]: Start accepts. Automaton has 45335 states and 241261 transitions. Word has length 27 [2020-10-15 22:26:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:20,845 INFO L481 AbstractCegarLoop]: Abstraction has 45335 states and 241261 transitions. [2020-10-15 22:26:20,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 45335 states and 241261 transitions. [2020-10-15 22:26:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:20,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:20,850 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:20,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2020-10-15 22:26:20,851 INFO L429 AbstractCegarLoop]: === Iteration 71 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:20,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1023950403, now seen corresponding path program 21 times [2020-10-15 22:26:20,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:20,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800575512] [2020-10-15 22:26:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:20,910 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:20,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800575512] [2020-10-15 22:26:20,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:20,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:20,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015440638] [2020-10-15 22:26:20,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:20,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:20,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:20,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:20,912 INFO L87 Difference]: Start difference. First operand 45335 states and 241261 transitions. Second operand 11 states. [2020-10-15 22:26:23,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:23,620 INFO L93 Difference]: Finished difference Result 205404 states and 909139 transitions. [2020-10-15 22:26:23,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:23,621 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:23,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:24,191 INFO L225 Difference]: With dead ends: 205404 [2020-10-15 22:26:24,191 INFO L226 Difference]: Without dead ends: 205380 [2020-10-15 22:26:24,191 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205380 states. [2020-10-15 22:26:29,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205380 to 45076. [2020-10-15 22:26:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45076 states. [2020-10-15 22:26:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45076 states to 45076 states and 240064 transitions. [2020-10-15 22:26:29,468 INFO L78 Accepts]: Start accepts. Automaton has 45076 states and 240064 transitions. Word has length 27 [2020-10-15 22:26:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:29,468 INFO L481 AbstractCegarLoop]: Abstraction has 45076 states and 240064 transitions. [2020-10-15 22:26:29,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 45076 states and 240064 transitions. [2020-10-15 22:26:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:29,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:29,473 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:29,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2020-10-15 22:26:29,473 INFO L429 AbstractCegarLoop]: === Iteration 72 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1010439363, now seen corresponding path program 22 times [2020-10-15 22:26:29,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:29,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246535824] [2020-10-15 22:26:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:29,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246535824] [2020-10-15 22:26:29,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:29,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:29,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084856897] [2020-10-15 22:26:29,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:29,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:29,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:29,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:29,546 INFO L87 Difference]: Start difference. First operand 45076 states and 240064 transitions. Second operand 11 states. [2020-10-15 22:26:32,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:32,222 INFO L93 Difference]: Finished difference Result 205143 states and 907975 transitions. [2020-10-15 22:26:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:32,224 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:32,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:32,796 INFO L225 Difference]: With dead ends: 205143 [2020-10-15 22:26:32,796 INFO L226 Difference]: Without dead ends: 205113 [2020-10-15 22:26:32,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1562 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:34,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205113 states. [2020-10-15 22:26:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205113 to 44685. [2020-10-15 22:26:37,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44685 states. [2020-10-15 22:26:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44685 states to 44685 states and 238000 transitions. [2020-10-15 22:26:38,119 INFO L78 Accepts]: Start accepts. Automaton has 44685 states and 238000 transitions. Word has length 27 [2020-10-15 22:26:38,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:38,119 INFO L481 AbstractCegarLoop]: Abstraction has 44685 states and 238000 transitions. [2020-10-15 22:26:38,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:38,119 INFO L276 IsEmpty]: Start isEmpty. Operand 44685 states and 238000 transitions. [2020-10-15 22:26:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:38,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:38,124 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:38,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2020-10-15 22:26:38,125 INFO L429 AbstractCegarLoop]: === Iteration 73 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:38,125 INFO L82 PathProgramCache]: Analyzing trace with hash -377078589, now seen corresponding path program 23 times [2020-10-15 22:26:38,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:38,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878557149] [2020-10-15 22:26:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:38,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:38,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878557149] [2020-10-15 22:26:38,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:38,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:38,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847464346] [2020-10-15 22:26:38,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:38,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:38,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:38,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:38,198 INFO L87 Difference]: Start difference. First operand 44685 states and 238000 transitions. Second operand 11 states. [2020-10-15 22:26:40,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:40,872 INFO L93 Difference]: Finished difference Result 204573 states and 905311 transitions. [2020-10-15 22:26:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:40,872 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:40,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:41,444 INFO L225 Difference]: With dead ends: 204573 [2020-10-15 22:26:41,444 INFO L226 Difference]: Without dead ends: 204549 [2020-10-15 22:26:41,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204549 states. [2020-10-15 22:26:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204549 to 44434. [2020-10-15 22:26:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44434 states. [2020-10-15 22:26:45,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 236823 transitions. [2020-10-15 22:26:45,801 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 236823 transitions. Word has length 27 [2020-10-15 22:26:45,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:45,801 INFO L481 AbstractCegarLoop]: Abstraction has 44434 states and 236823 transitions. [2020-10-15 22:26:45,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:45,801 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 236823 transitions. [2020-10-15 22:26:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-15 22:26:45,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:45,806 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:45,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2020-10-15 22:26:45,807 INFO L429 AbstractCegarLoop]: === Iteration 74 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:45,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:45,807 INFO L82 PathProgramCache]: Analyzing trace with hash -375739389, now seen corresponding path program 24 times [2020-10-15 22:26:45,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:45,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388404568] [2020-10-15 22:26:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:26:45,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388404568] [2020-10-15 22:26:45,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:45,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 22:26:45,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993690581] [2020-10-15 22:26:45,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:45,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:45,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:45,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:45,883 INFO L87 Difference]: Start difference. First operand 44434 states and 236823 transitions. Second operand 11 states. [2020-10-15 22:26:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:49,045 INFO L93 Difference]: Finished difference Result 204089 states and 903225 transitions. [2020-10-15 22:26:49,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-10-15 22:26:49,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-10-15 22:26:49,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:49,621 INFO L225 Difference]: With dead ends: 204089 [2020-10-15 22:26:49,621 INFO L226 Difference]: Without dead ends: 204054 [2020-10-15 22:26:49,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-10-15 22:26:51,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204054 states. [2020-10-15 22:26:53,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204054 to 43794. [2020-10-15 22:26:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43794 states. [2020-10-15 22:26:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43794 states to 43794 states and 233791 transitions. [2020-10-15 22:26:54,001 INFO L78 Accepts]: Start accepts. Automaton has 43794 states and 233791 transitions. Word has length 27 [2020-10-15 22:26:54,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:54,001 INFO L481 AbstractCegarLoop]: Abstraction has 43794 states and 233791 transitions. [2020-10-15 22:26:54,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:54,001 INFO L276 IsEmpty]: Start isEmpty. Operand 43794 states and 233791 transitions. [2020-10-15 22:26:54,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:26:54,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:54,009 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:54,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2020-10-15 22:26:54,010 INFO L429 AbstractCegarLoop]: === Iteration 75 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:54,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1079064756, now seen corresponding path program 1 times [2020-10-15 22:26:54,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:54,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67712212] [2020-10-15 22:26:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:26:54,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67712212] [2020-10-15 22:26:54,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136400062] [2020-10-15 22:26:54,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:26:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:54,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:26:54,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:26:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:26:54,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:26:54,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:26:54,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670398130] [2020-10-15 22:26:54,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:26:54,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:26:54,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:26:54,200 INFO L87 Difference]: Start difference. First operand 43794 states and 233791 transitions. Second operand 11 states. [2020-10-15 22:26:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:56,124 INFO L93 Difference]: Finished difference Result 139868 states and 649854 transitions. [2020-10-15 22:26:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:26:56,124 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:26:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:56,534 INFO L225 Difference]: With dead ends: 139868 [2020-10-15 22:26:56,534 INFO L226 Difference]: Without dead ends: 139824 [2020-10-15 22:26:56,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:26:57,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139824 states. [2020-10-15 22:26:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139824 to 44208. [2020-10-15 22:26:59,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44208 states. [2020-10-15 22:26:59,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44208 states to 44208 states and 235737 transitions. [2020-10-15 22:26:59,662 INFO L78 Accepts]: Start accepts. Automaton has 44208 states and 235737 transitions. Word has length 29 [2020-10-15 22:26:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:26:59,663 INFO L481 AbstractCegarLoop]: Abstraction has 44208 states and 235737 transitions. [2020-10-15 22:26:59,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:26:59,663 INFO L276 IsEmpty]: Start isEmpty. Operand 44208 states and 235737 transitions. [2020-10-15 22:26:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:26:59,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:59,671 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:59,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149 [2020-10-15 22:26:59,872 INFO L429 AbstractCegarLoop]: === Iteration 76 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:59,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1079080225, now seen corresponding path program 1 times [2020-10-15 22:26:59,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:59,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624281163] [2020-10-15 22:26:59,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:59,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:26:59,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624281163] [2020-10-15 22:26:59,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105718000] [2020-10-15 22:26:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:00,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:00,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:00,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:00,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:00,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888391233] [2020-10-15 22:27:00,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:00,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:00,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:00,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:00,037 INFO L87 Difference]: Start difference. First operand 44208 states and 235737 transitions. Second operand 11 states. [2020-10-15 22:27:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:01,527 INFO L93 Difference]: Finished difference Result 138663 states and 644549 transitions. [2020-10-15 22:27:01,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:01,527 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:01,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:01,924 INFO L225 Difference]: With dead ends: 138663 [2020-10-15 22:27:01,925 INFO L226 Difference]: Without dead ends: 138619 [2020-10-15 22:27:01,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138619 states. [2020-10-15 22:27:05,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138619 to 44346. [2020-10-15 22:27:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44346 states. [2020-10-15 22:27:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44346 states to 44346 states and 236212 transitions. [2020-10-15 22:27:05,844 INFO L78 Accepts]: Start accepts. Automaton has 44346 states and 236212 transitions. Word has length 29 [2020-10-15 22:27:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:05,844 INFO L481 AbstractCegarLoop]: Abstraction has 44346 states and 236212 transitions. [2020-10-15 22:27:05,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 44346 states and 236212 transitions. [2020-10-15 22:27:05,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:05,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:05,853 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:06,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:06,053 INFO L429 AbstractCegarLoop]: === Iteration 77 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:06,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:06,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1079042684, now seen corresponding path program 1 times [2020-10-15 22:27:06,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:06,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697472669] [2020-10-15 22:27:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:06,104 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:06,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697472669] [2020-10-15 22:27:06,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269059791] [2020-10-15 22:27:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:06,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:06,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:06,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:06,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:06,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038749648] [2020-10-15 22:27:06,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:06,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:06,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:06,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:06,219 INFO L87 Difference]: Start difference. First operand 44346 states and 236212 transitions. Second operand 11 states. [2020-10-15 22:27:07,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:07,604 INFO L93 Difference]: Finished difference Result 137475 states and 638613 transitions. [2020-10-15 22:27:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:07,605 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:07,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:08,001 INFO L225 Difference]: With dead ends: 137475 [2020-10-15 22:27:08,002 INFO L226 Difference]: Without dead ends: 137431 [2020-10-15 22:27:08,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137431 states. [2020-10-15 22:27:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137431 to 44001. [2020-10-15 22:27:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44001 states. [2020-10-15 22:27:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44001 states to 44001 states and 234197 transitions. [2020-10-15 22:27:11,112 INFO L78 Accepts]: Start accepts. Automaton has 44001 states and 234197 transitions. Word has length 29 [2020-10-15 22:27:11,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:11,112 INFO L481 AbstractCegarLoop]: Abstraction has 44001 states and 234197 transitions. [2020-10-15 22:27:11,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 44001 states and 234197 transitions. [2020-10-15 22:27:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:11,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:11,121 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:11,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:11,321 INFO L429 AbstractCegarLoop]: === Iteration 78 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:11,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1076743476, now seen corresponding path program 2 times [2020-10-15 22:27:11,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:11,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184988840] [2020-10-15 22:27:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:11,374 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:11,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184988840] [2020-10-15 22:27:11,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542363022] [2020-10-15 22:27:11,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:11,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:11,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:11,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:11,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:11,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:11,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:11,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652266894] [2020-10-15 22:27:11,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:11,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:11,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:11,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:11,491 INFO L87 Difference]: Start difference. First operand 44001 states and 234197 transitions. Second operand 11 states. [2020-10-15 22:27:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:12,943 INFO L93 Difference]: Finished difference Result 137660 states and 639047 transitions. [2020-10-15 22:27:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:12,944 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:14,107 INFO L225 Difference]: With dead ends: 137660 [2020-10-15 22:27:14,107 INFO L226 Difference]: Without dead ends: 137614 [2020-10-15 22:27:14,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:15,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137614 states. [2020-10-15 22:27:16,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137614 to 43606. [2020-10-15 22:27:16,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43606 states. [2020-10-15 22:27:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43606 states to 43606 states and 231805 transitions. [2020-10-15 22:27:17,150 INFO L78 Accepts]: Start accepts. Automaton has 43606 states and 231805 transitions. Word has length 29 [2020-10-15 22:27:17,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:17,151 INFO L481 AbstractCegarLoop]: Abstraction has 43606 states and 231805 transitions. [2020-10-15 22:27:17,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 43606 states and 231805 transitions. [2020-10-15 22:27:17,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:17,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:17,159 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:17,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:17,360 INFO L429 AbstractCegarLoop]: === Iteration 79 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:17,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:17,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1091609185, now seen corresponding path program 2 times [2020-10-15 22:27:17,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:17,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57407130] [2020-10-15 22:27:17,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:17,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57407130] [2020-10-15 22:27:17,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068430596] [2020-10-15 22:27:17,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:17,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:17,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:17,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:17,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:17,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:17,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:17,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068597220] [2020-10-15 22:27:17,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:17,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:17,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:17,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:17,521 INFO L87 Difference]: Start difference. First operand 43606 states and 231805 transitions. Second operand 11 states. [2020-10-15 22:27:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:18,912 INFO L93 Difference]: Finished difference Result 136227 states and 631974 transitions. [2020-10-15 22:27:18,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:18,913 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:18,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:19,309 INFO L225 Difference]: With dead ends: 136227 [2020-10-15 22:27:19,309 INFO L226 Difference]: Without dead ends: 136181 [2020-10-15 22:27:19,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:20,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136181 states. [2020-10-15 22:27:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136181 to 43334. [2020-10-15 22:27:23,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43334 states. [2020-10-15 22:27:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43334 states to 43334 states and 230138 transitions. [2020-10-15 22:27:23,426 INFO L78 Accepts]: Start accepts. Automaton has 43334 states and 230138 transitions. Word has length 29 [2020-10-15 22:27:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:23,426 INFO L481 AbstractCegarLoop]: Abstraction has 43334 states and 230138 transitions. [2020-10-15 22:27:23,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 43334 states and 230138 transitions. [2020-10-15 22:27:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:23,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:23,434 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:23,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:23,640 INFO L429 AbstractCegarLoop]: === Iteration 80 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:23,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:23,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1055532284, now seen corresponding path program 2 times [2020-10-15 22:27:23,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:23,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308318082] [2020-10-15 22:27:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:23,693 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:23,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308318082] [2020-10-15 22:27:23,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065300209] [2020-10-15 22:27:23,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:23,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:23,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:23,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:23,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 22:27:23,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:23,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:23,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116889762] [2020-10-15 22:27:23,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:23,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:23,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:23,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:23,805 INFO L87 Difference]: Start difference. First operand 43334 states and 230138 transitions. Second operand 11 states. [2020-10-15 22:27:25,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:25,177 INFO L93 Difference]: Finished difference Result 135193 states and 626279 transitions. [2020-10-15 22:27:25,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:25,178 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:25,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:25,565 INFO L225 Difference]: With dead ends: 135193 [2020-10-15 22:27:25,565 INFO L226 Difference]: Without dead ends: 135147 [2020-10-15 22:27:25,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:26,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135147 states. [2020-10-15 22:27:28,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135147 to 43128. [2020-10-15 22:27:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43128 states. [2020-10-15 22:27:28,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43128 states to 43128 states and 228903 transitions. [2020-10-15 22:27:28,498 INFO L78 Accepts]: Start accepts. Automaton has 43128 states and 228903 transitions. Word has length 29 [2020-10-15 22:27:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:28,499 INFO L481 AbstractCegarLoop]: Abstraction has 43128 states and 228903 transitions. [2020-10-15 22:27:28,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 43128 states and 228903 transitions. [2020-10-15 22:27:28,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:28,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:28,507 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:28,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable154 [2020-10-15 22:27:28,708 INFO L429 AbstractCegarLoop]: === Iteration 81 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:28,708 INFO L82 PathProgramCache]: Analyzing trace with hash -233799798, now seen corresponding path program 3 times [2020-10-15 22:27:28,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:28,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885274627] [2020-10-15 22:27:28,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:28,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885274627] [2020-10-15 22:27:28,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286069152] [2020-10-15 22:27:28,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:28,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-10-15 22:27:28,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:28,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:28,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:28,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:28,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:28,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137210715] [2020-10-15 22:27:28,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:28,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:28,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:28,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:28,874 INFO L87 Difference]: Start difference. First operand 43128 states and 228903 transitions. Second operand 11 states. [2020-10-15 22:27:30,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:30,302 INFO L93 Difference]: Finished difference Result 135315 states and 626661 transitions. [2020-10-15 22:27:30,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:30,303 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:30,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:30,685 INFO L225 Difference]: With dead ends: 135315 [2020-10-15 22:27:30,685 INFO L226 Difference]: Without dead ends: 135271 [2020-10-15 22:27:30,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135271 states. [2020-10-15 22:27:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135271 to 42904. [2020-10-15 22:27:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42904 states. [2020-10-15 22:27:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42904 states to 42904 states and 227530 transitions. [2020-10-15 22:27:34,431 INFO L78 Accepts]: Start accepts. Automaton has 42904 states and 227530 transitions. Word has length 29 [2020-10-15 22:27:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:34,431 INFO L481 AbstractCegarLoop]: Abstraction has 42904 states and 227530 transitions. [2020-10-15 22:27:34,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 42904 states and 227530 transitions. [2020-10-15 22:27:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:34,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:34,439 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:34,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable155 [2020-10-15 22:27:34,640 INFO L429 AbstractCegarLoop]: === Iteration 82 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:34,641 INFO L82 PathProgramCache]: Analyzing trace with hash -938803546, now seen corresponding path program 1 times [2020-10-15 22:27:34,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:34,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068707188] [2020-10-15 22:27:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:27:34,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068707188] [2020-10-15 22:27:34,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912318000] [2020-10-15 22:27:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:34,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:34,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:27:34,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:34,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:34,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616153927] [2020-10-15 22:27:34,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:34,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:34,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:34,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:34,804 INFO L87 Difference]: Start difference. First operand 42904 states and 227530 transitions. Second operand 11 states. [2020-10-15 22:27:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:36,273 INFO L93 Difference]: Finished difference Result 140989 states and 654549 transitions. [2020-10-15 22:27:36,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:36,274 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:36,706 INFO L225 Difference]: With dead ends: 140989 [2020-10-15 22:27:36,706 INFO L226 Difference]: Without dead ends: 140945 [2020-10-15 22:27:36,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140945 states. [2020-10-15 22:27:39,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140945 to 42930. [2020-10-15 22:27:39,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42930 states. [2020-10-15 22:27:39,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42930 states to 42930 states and 227280 transitions. [2020-10-15 22:27:39,852 INFO L78 Accepts]: Start accepts. Automaton has 42930 states and 227280 transitions. Word has length 29 [2020-10-15 22:27:39,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:39,852 INFO L481 AbstractCegarLoop]: Abstraction has 42930 states and 227280 transitions. [2020-10-15 22:27:39,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:39,852 INFO L276 IsEmpty]: Start isEmpty. Operand 42930 states and 227280 transitions. [2020-10-15 22:27:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:39,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:39,860 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:40,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:40,061 INFO L429 AbstractCegarLoop]: === Iteration 83 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:40,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1231154336, now seen corresponding path program 4 times [2020-10-15 22:27:40,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:40,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252055478] [2020-10-15 22:27:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:40,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252055478] [2020-10-15 22:27:40,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622298941] [2020-10-15 22:27:40,109 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:40,199 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:27:40,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:40,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:40,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:40,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:40,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:40,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113951060] [2020-10-15 22:27:40,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:40,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:40,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:40,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:40,226 INFO L87 Difference]: Start difference. First operand 42930 states and 227280 transitions. Second operand 11 states. [2020-10-15 22:27:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:42,097 INFO L93 Difference]: Finished difference Result 136674 states and 632799 transitions. [2020-10-15 22:27:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:42,098 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:42,496 INFO L225 Difference]: With dead ends: 136674 [2020-10-15 22:27:42,496 INFO L226 Difference]: Without dead ends: 136628 [2020-10-15 22:27:42,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136628 states. [2020-10-15 22:27:45,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136628 to 43133. [2020-10-15 22:27:45,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43133 states. [2020-10-15 22:27:45,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43133 states to 43133 states and 228222 transitions. [2020-10-15 22:27:45,571 INFO L78 Accepts]: Start accepts. Automaton has 43133 states and 228222 transitions. Word has length 29 [2020-10-15 22:27:45,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:45,572 INFO L481 AbstractCegarLoop]: Abstraction has 43133 states and 228222 transitions. [2020-10-15 22:27:45,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:45,572 INFO L276 IsEmpty]: Start isEmpty. Operand 43133 states and 228222 transitions. [2020-10-15 22:27:45,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:45,580 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:45,580 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:45,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable157 [2020-10-15 22:27:45,781 INFO L429 AbstractCegarLoop]: === Iteration 84 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:45,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:45,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1231140262, now seen corresponding path program 2 times [2020-10-15 22:27:45,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:45,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65072884] [2020-10-15 22:27:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:45,830 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:45,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65072884] [2020-10-15 22:27:45,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221089458] [2020-10-15 22:27:45,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:45,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:45,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:45,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:45,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:45,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:45,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:45,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181394800] [2020-10-15 22:27:45,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:45,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:45,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:45,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:45,938 INFO L87 Difference]: Start difference. First operand 43133 states and 228222 transitions. Second operand 11 states. [2020-10-15 22:27:47,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:47,327 INFO L93 Difference]: Finished difference Result 137702 states and 638553 transitions. [2020-10-15 22:27:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:47,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:47,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:47,726 INFO L225 Difference]: With dead ends: 137702 [2020-10-15 22:27:47,727 INFO L226 Difference]: Without dead ends: 137652 [2020-10-15 22:27:47,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:49,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137652 states. [2020-10-15 22:27:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137652 to 42970. [2020-10-15 22:27:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42970 states. [2020-10-15 22:27:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42970 states to 42970 states and 227334 transitions. [2020-10-15 22:27:51,638 INFO L78 Accepts]: Start accepts. Automaton has 42970 states and 227334 transitions. Word has length 29 [2020-10-15 22:27:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:51,638 INFO L481 AbstractCegarLoop]: Abstraction has 42970 states and 227334 transitions. [2020-10-15 22:27:51,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 42970 states and 227334 transitions. [2020-10-15 22:27:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:51,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:51,647 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:51,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable158 [2020-10-15 22:27:51,848 INFO L429 AbstractCegarLoop]: === Iteration 85 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:51,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1231177803, now seen corresponding path program 1 times [2020-10-15 22:27:51,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:51,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339418521] [2020-10-15 22:27:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:51,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339418521] [2020-10-15 22:27:51,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781525447] [2020-10-15 22:27:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:51,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:51,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:52,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:52,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:52,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988069469] [2020-10-15 22:27:52,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:52,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:52,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:52,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:52,009 INFO L87 Difference]: Start difference. First operand 42970 states and 227334 transitions. Second operand 11 states. [2020-10-15 22:27:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:53,361 INFO L93 Difference]: Finished difference Result 136895 states and 634251 transitions. [2020-10-15 22:27:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:53,362 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:53,758 INFO L225 Difference]: With dead ends: 136895 [2020-10-15 22:27:53,758 INFO L226 Difference]: Without dead ends: 136851 [2020-10-15 22:27:53,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:27:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136851 states. [2020-10-15 22:27:56,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136851 to 42730. [2020-10-15 22:27:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42730 states. [2020-10-15 22:27:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42730 states to 42730 states and 225896 transitions. [2020-10-15 22:27:56,814 INFO L78 Accepts]: Start accepts. Automaton has 42730 states and 225896 transitions. Word has length 29 [2020-10-15 22:27:56,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:56,814 INFO L481 AbstractCegarLoop]: Abstraction has 42730 states and 225896 transitions. [2020-10-15 22:27:56,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:27:56,814 INFO L276 IsEmpty]: Start isEmpty. Operand 42730 states and 225896 transitions. [2020-10-15 22:27:56,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:27:56,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:56,822 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:57,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable159 [2020-10-15 22:27:57,025 INFO L429 AbstractCegarLoop]: === Iteration 86 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:57,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1254688203, now seen corresponding path program 2 times [2020-10-15 22:27:57,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:57,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671003520] [2020-10-15 22:27:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:57,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671003520] [2020-10-15 22:27:57,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504705504] [2020-10-15 22:27:57,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:27:57,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:27:57,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:27:57,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:27:57,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:27:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-15 22:27:57,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:27:57,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:27:57,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273911855] [2020-10-15 22:27:57,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:27:57,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:57,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:27:57,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:27:57,186 INFO L87 Difference]: Start difference. First operand 42730 states and 225896 transitions. Second operand 11 states. [2020-10-15 22:27:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:58,576 INFO L93 Difference]: Finished difference Result 136603 states and 632426 transitions. [2020-10-15 22:27:58,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:27:58,577 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:27:58,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:58,972 INFO L225 Difference]: With dead ends: 136603 [2020-10-15 22:27:58,972 INFO L226 Difference]: Without dead ends: 136553 [2020-10-15 22:27:58,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:01,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136553 states. [2020-10-15 22:28:02,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136553 to 42336. [2020-10-15 22:28:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42336 states. [2020-10-15 22:28:02,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42336 states to 42336 states and 223735 transitions. [2020-10-15 22:28:02,527 INFO L78 Accepts]: Start accepts. Automaton has 42336 states and 223735 transitions. Word has length 29 [2020-10-15 22:28:02,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:02,527 INFO L481 AbstractCegarLoop]: Abstraction has 42336 states and 223735 transitions. [2020-10-15 22:28:02,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:02,527 INFO L276 IsEmpty]: Start isEmpty. Operand 42336 states and 223735 transitions. [2020-10-15 22:28:02,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:02,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:02,535 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:02,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:02,736 INFO L429 AbstractCegarLoop]: === Iteration 87 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:02,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:02,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1636984727, now seen corresponding path program 3 times [2020-10-15 22:28:02,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:02,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530738192] [2020-10-15 22:28:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:02,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530738192] [2020-10-15 22:28:02,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211909080] [2020-10-15 22:28:02,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:02,869 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:28:02,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:02,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:02,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:02,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:02,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:02,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282639353] [2020-10-15 22:28:02,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:02,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:02,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:02,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:02,903 INFO L87 Difference]: Start difference. First operand 42336 states and 223735 transitions. Second operand 11 states. [2020-10-15 22:28:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:04,273 INFO L93 Difference]: Finished difference Result 136165 states and 630523 transitions. [2020-10-15 22:28:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:04,273 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:04,660 INFO L225 Difference]: With dead ends: 136165 [2020-10-15 22:28:04,661 INFO L226 Difference]: Without dead ends: 136121 [2020-10-15 22:28:04,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:05,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136121 states. [2020-10-15 22:28:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136121 to 42190. [2020-10-15 22:28:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42190 states. [2020-10-15 22:28:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42190 states to 42190 states and 222836 transitions. [2020-10-15 22:28:07,691 INFO L78 Accepts]: Start accepts. Automaton has 42190 states and 222836 transitions. Word has length 29 [2020-10-15 22:28:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:07,691 INFO L481 AbstractCegarLoop]: Abstraction has 42190 states and 222836 transitions. [2020-10-15 22:28:07,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 42190 states and 222836 transitions. [2020-10-15 22:28:07,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:07,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:07,700 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:07,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:07,901 INFO L429 AbstractCegarLoop]: === Iteration 88 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:07,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:07,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1194503706, now seen corresponding path program 3 times [2020-10-15 22:28:07,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:07,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230874692] [2020-10-15 22:28:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:07,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230874692] [2020-10-15 22:28:07,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002430985] [2020-10-15 22:28:07,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:08,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:28:08,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:08,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:08,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:08,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:08,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:08,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926610003] [2020-10-15 22:28:08,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:08,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:08,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:08,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:08,068 INFO L87 Difference]: Start difference. First operand 42190 states and 222836 transitions. Second operand 11 states. [2020-10-15 22:28:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:09,982 INFO L93 Difference]: Finished difference Result 135620 states and 627622 transitions. [2020-10-15 22:28:09,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:09,983 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:09,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:10,382 INFO L225 Difference]: With dead ends: 135620 [2020-10-15 22:28:10,382 INFO L226 Difference]: Without dead ends: 135576 [2020-10-15 22:28:10,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135576 states. [2020-10-15 22:28:13,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135576 to 42095. [2020-10-15 22:28:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42095 states. [2020-10-15 22:28:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42095 states to 42095 states and 222269 transitions. [2020-10-15 22:28:13,381 INFO L78 Accepts]: Start accepts. Automaton has 42095 states and 222269 transitions. Word has length 29 [2020-10-15 22:28:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:13,381 INFO L481 AbstractCegarLoop]: Abstraction has 42095 states and 222269 transitions. [2020-10-15 22:28:13,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 42095 states and 222269 transitions. [2020-10-15 22:28:13,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:13,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:13,390 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:13,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:13,591 INFO L429 AbstractCegarLoop]: === Iteration 89 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1497105939, now seen corresponding path program 4 times [2020-10-15 22:28:13,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:13,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025557705] [2020-10-15 22:28:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:13,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025557705] [2020-10-15 22:28:13,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72779874] [2020-10-15 22:28:13,645 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:13,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:28:13,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:13,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:13,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:13,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:13,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:13,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320488972] [2020-10-15 22:28:13,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:13,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:13,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:13,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:13,759 INFO L87 Difference]: Start difference. First operand 42095 states and 222269 transitions. Second operand 11 states. [2020-10-15 22:28:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:15,140 INFO L93 Difference]: Finished difference Result 137900 states and 638782 transitions. [2020-10-15 22:28:15,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:15,141 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:15,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:15,537 INFO L225 Difference]: With dead ends: 137900 [2020-10-15 22:28:15,537 INFO L226 Difference]: Without dead ends: 137850 [2020-10-15 22:28:15,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137850 states. [2020-10-15 22:28:19,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137850 to 42209. [2020-10-15 22:28:19,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42209 states. [2020-10-15 22:28:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42209 states to 42209 states and 222796 transitions. [2020-10-15 22:28:19,612 INFO L78 Accepts]: Start accepts. Automaton has 42209 states and 222796 transitions. Word has length 29 [2020-10-15 22:28:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:19,612 INFO L481 AbstractCegarLoop]: Abstraction has 42209 states and 222796 transitions. [2020-10-15 22:28:19,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 42209 states and 222796 transitions. [2020-10-15 22:28:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:19,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:19,621 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:19,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163,75 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:19,821 INFO L429 AbstractCegarLoop]: === Iteration 90 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:19,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:19,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1497107334, now seen corresponding path program 4 times [2020-10-15 22:28:19,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:19,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358247756] [2020-10-15 22:28:19,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:19,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358247756] [2020-10-15 22:28:19,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083605195] [2020-10-15 22:28:19,877 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:19,962 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-10-15 22:28:19,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:19,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:19,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:19,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:19,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:19,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491668971] [2020-10-15 22:28:19,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:19,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:19,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:19,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:19,985 INFO L87 Difference]: Start difference. First operand 42209 states and 222796 transitions. Second operand 11 states. [2020-10-15 22:28:21,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:21,459 INFO L93 Difference]: Finished difference Result 136803 states and 633722 transitions. [2020-10-15 22:28:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:21,459 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:21,854 INFO L225 Difference]: With dead ends: 136803 [2020-10-15 22:28:21,854 INFO L226 Difference]: Without dead ends: 136753 [2020-10-15 22:28:21,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136753 states. [2020-10-15 22:28:24,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136753 to 42058. [2020-10-15 22:28:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42058 states. [2020-10-15 22:28:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42058 states to 42058 states and 221940 transitions. [2020-10-15 22:28:24,995 INFO L78 Accepts]: Start accepts. Automaton has 42058 states and 221940 transitions. Word has length 29 [2020-10-15 22:28:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:24,995 INFO L481 AbstractCegarLoop]: Abstraction has 42058 states and 221940 transitions. [2020-10-15 22:28:24,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:24,995 INFO L276 IsEmpty]: Start isEmpty. Operand 42058 states and 221940 transitions. [2020-10-15 22:28:25,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:25,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:25,005 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:25,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:25,205 INFO L429 AbstractCegarLoop]: === Iteration 91 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:25,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1497129406, now seen corresponding path program 1 times [2020-10-15 22:28:25,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:25,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261560734] [2020-10-15 22:28:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:25,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261560734] [2020-10-15 22:28:25,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579332052] [2020-10-15 22:28:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:25,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:25,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:25,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:25,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:25,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135941415] [2020-10-15 22:28:25,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:25,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:25,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:25,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:25,368 INFO L87 Difference]: Start difference. First operand 42058 states and 221940 transitions. Second operand 11 states. [2020-10-15 22:28:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:26,846 INFO L93 Difference]: Finished difference Result 136837 states and 634815 transitions. [2020-10-15 22:28:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:26,847 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:27,249 INFO L225 Difference]: With dead ends: 136837 [2020-10-15 22:28:27,249 INFO L226 Difference]: Without dead ends: 136793 [2020-10-15 22:28:27,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:28,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136793 states. [2020-10-15 22:28:30,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136793 to 41929. [2020-10-15 22:28:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41929 states. [2020-10-15 22:28:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41929 states to 41929 states and 221167 transitions. [2020-10-15 22:28:31,028 INFO L78 Accepts]: Start accepts. Automaton has 41929 states and 221167 transitions. Word has length 29 [2020-10-15 22:28:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:31,028 INFO L481 AbstractCegarLoop]: Abstraction has 41929 states and 221167 transitions. [2020-10-15 22:28:31,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 41929 states and 221167 transitions. [2020-10-15 22:28:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:31,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:31,036 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:31,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:31,237 INFO L429 AbstractCegarLoop]: === Iteration 92 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:31,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:31,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1520639806, now seen corresponding path program 2 times [2020-10-15 22:28:31,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:31,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328619637] [2020-10-15 22:28:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:31,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328619637] [2020-10-15 22:28:31,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159297707] [2020-10-15 22:28:31,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:28:31,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:28:31,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:28:31,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:28:31,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:28:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-15 22:28:31,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:28:31,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-10-15 22:28:31,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421003969] [2020-10-15 22:28:31,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 22:28:31,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:31,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 22:28:31,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:28:31,400 INFO L87 Difference]: Start difference. First operand 41929 states and 221167 transitions. Second operand 11 states. [2020-10-15 22:28:32,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:32,766 INFO L93 Difference]: Finished difference Result 136136 states and 631023 transitions. [2020-10-15 22:28:32,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:32,767 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-10-15 22:28:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:33,189 INFO L225 Difference]: With dead ends: 136136 [2020-10-15 22:28:33,190 INFO L226 Difference]: Without dead ends: 136077 [2020-10-15 22:28:33,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 22:28:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136077 states. [2020-10-15 22:28:35,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136077 to 41353. [2020-10-15 22:28:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41353 states. [2020-10-15 22:28:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41353 states to 41353 states and 218039 transitions. [2020-10-15 22:28:36,140 INFO L78 Accepts]: Start accepts. Automaton has 41353 states and 218039 transitions. Word has length 29 [2020-10-15 22:28:36,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:36,145 INFO L481 AbstractCegarLoop]: Abstraction has 41353 states and 218039 transitions. [2020-10-15 22:28:36,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 22:28:36,145 INFO L276 IsEmpty]: Start isEmpty. Operand 41353 states and 218039 transitions. [2020-10-15 22:28:36,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:36,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:36,157 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:36,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2020-10-15 22:28:36,370 INFO L429 AbstractCegarLoop]: === Iteration 93 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:36,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:36,370 INFO L82 PathProgramCache]: Analyzing trace with hash -527473920, now seen corresponding path program 5 times [2020-10-15 22:28:36,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:36,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139638495] [2020-10-15 22:28:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:28:36,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139638495] [2020-10-15 22:28:36,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:36,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:36,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184278026] [2020-10-15 22:28:36,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:36,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:36,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:36,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:36,425 INFO L87 Difference]: Start difference. First operand 41353 states and 218039 transitions. Second operand 9 states. [2020-10-15 22:28:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:37,800 INFO L93 Difference]: Finished difference Result 135187 states and 625168 transitions. [2020-10-15 22:28:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:37,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:38,185 INFO L225 Difference]: With dead ends: 135187 [2020-10-15 22:28:38,185 INFO L226 Difference]: Without dead ends: 135143 [2020-10-15 22:28:38,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:28:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135143 states. [2020-10-15 22:28:41,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135143 to 40915. [2020-10-15 22:28:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40915 states. [2020-10-15 22:28:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40915 states to 40915 states and 215544 transitions. [2020-10-15 22:28:41,636 INFO L78 Accepts]: Start accepts. Automaton has 40915 states and 215544 transitions. Word has length 29 [2020-10-15 22:28:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:41,636 INFO L481 AbstractCegarLoop]: Abstraction has 40915 states and 215544 transitions. [2020-10-15 22:28:41,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:41,636 INFO L276 IsEmpty]: Start isEmpty. Operand 40915 states and 215544 transitions. [2020-10-15 22:28:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:41,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:41,645 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:41,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2020-10-15 22:28:41,645 INFO L429 AbstractCegarLoop]: === Iteration 94 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:41,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash -527489389, now seen corresponding path program 5 times [2020-10-15 22:28:41,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:41,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463864623] [2020-10-15 22:28:41,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:28:41,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463864623] [2020-10-15 22:28:41,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:41,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:41,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893917012] [2020-10-15 22:28:41,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:41,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:41,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:41,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:41,698 INFO L87 Difference]: Start difference. First operand 40915 states and 215544 transitions. Second operand 9 states. [2020-10-15 22:28:43,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:43,120 INFO L93 Difference]: Finished difference Result 133251 states and 615922 transitions. [2020-10-15 22:28:43,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:43,121 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:43,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:43,504 INFO L225 Difference]: With dead ends: 133251 [2020-10-15 22:28:43,504 INFO L226 Difference]: Without dead ends: 133207 [2020-10-15 22:28:43,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:28:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133207 states. [2020-10-15 22:28:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133207 to 40430. [2020-10-15 22:28:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40430 states. [2020-10-15 22:28:46,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40430 states to 40430 states and 212865 transitions. [2020-10-15 22:28:46,479 INFO L78 Accepts]: Start accepts. Automaton has 40430 states and 212865 transitions. Word has length 29 [2020-10-15 22:28:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:46,479 INFO L481 AbstractCegarLoop]: Abstraction has 40430 states and 212865 transitions. [2020-10-15 22:28:46,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 40430 states and 212865 transitions. [2020-10-15 22:28:46,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:46,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:46,488 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:46,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2020-10-15 22:28:46,488 INFO L429 AbstractCegarLoop]: === Iteration 95 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:46,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:46,488 INFO L82 PathProgramCache]: Analyzing trace with hash -527451848, now seen corresponding path program 3 times [2020-10-15 22:28:46,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:46,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709582804] [2020-10-15 22:28:46,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:28:46,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709582804] [2020-10-15 22:28:46,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:46,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:46,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555811458] [2020-10-15 22:28:46,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:46,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:46,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:46,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:46,539 INFO L87 Difference]: Start difference. First operand 40430 states and 212865 transitions. Second operand 9 states. [2020-10-15 22:28:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:48,496 INFO L93 Difference]: Finished difference Result 132509 states and 612908 transitions. [2020-10-15 22:28:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:48,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:48,894 INFO L225 Difference]: With dead ends: 132509 [2020-10-15 22:28:48,894 INFO L226 Difference]: Without dead ends: 132465 [2020-10-15 22:28:48,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:28:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132465 states. [2020-10-15 22:28:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132465 to 39940. [2020-10-15 22:28:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39940 states. [2020-10-15 22:28:51,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39940 states to 39940 states and 210218 transitions. [2020-10-15 22:28:51,718 INFO L78 Accepts]: Start accepts. Automaton has 39940 states and 210218 transitions. Word has length 29 [2020-10-15 22:28:51,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:51,718 INFO L481 AbstractCegarLoop]: Abstraction has 39940 states and 210218 transitions. [2020-10-15 22:28:51,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:51,718 INFO L276 IsEmpty]: Start isEmpty. Operand 39940 states and 210218 transitions. [2020-10-15 22:28:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:51,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:51,726 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:51,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2020-10-15 22:28:51,727 INFO L429 AbstractCegarLoop]: === Iteration 96 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:51,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:51,727 INFO L82 PathProgramCache]: Analyzing trace with hash -526134720, now seen corresponding path program 6 times [2020-10-15 22:28:51,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:51,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873696602] [2020-10-15 22:28:51,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:28:51,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873696602] [2020-10-15 22:28:51,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:51,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:51,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788020209] [2020-10-15 22:28:51,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:51,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:51,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:51,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:51,776 INFO L87 Difference]: Start difference. First operand 39940 states and 210218 transitions. Second operand 9 states. [2020-10-15 22:28:53,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:53,070 INFO L93 Difference]: Finished difference Result 130945 states and 603941 transitions. [2020-10-15 22:28:53,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:53,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:53,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:53,439 INFO L225 Difference]: With dead ends: 130945 [2020-10-15 22:28:53,440 INFO L226 Difference]: Without dead ends: 130886 [2020-10-15 22:28:53,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:28:54,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130886 states. [2020-10-15 22:28:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130886 to 39086. [2020-10-15 22:28:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39086 states. [2020-10-15 22:28:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39086 states to 39086 states and 205652 transitions. [2020-10-15 22:28:56,372 INFO L78 Accepts]: Start accepts. Automaton has 39086 states and 205652 transitions. Word has length 29 [2020-10-15 22:28:56,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:56,372 INFO L481 AbstractCegarLoop]: Abstraction has 39086 states and 205652 transitions. [2020-10-15 22:28:56,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:28:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand 39086 states and 205652 transitions. [2020-10-15 22:28:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:28:56,380 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:56,380 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:56,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2020-10-15 22:28:56,381 INFO L429 AbstractCegarLoop]: === Iteration 97 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:56,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:56,381 INFO L82 PathProgramCache]: Analyzing trace with hash -526148794, now seen corresponding path program 5 times [2020-10-15 22:28:56,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:56,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392391953] [2020-10-15 22:28:56,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:56,433 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:28:56,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392391953] [2020-10-15 22:28:56,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:56,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:28:56,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354977747] [2020-10-15 22:28:56,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:28:56,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:56,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:28:56,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:28:56,435 INFO L87 Difference]: Start difference. First operand 39086 states and 205652 transitions. Second operand 9 states. [2020-10-15 22:28:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:28:58,131 INFO L93 Difference]: Finished difference Result 130414 states and 601082 transitions. [2020-10-15 22:28:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:28:58,132 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:28:58,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:28:58,511 INFO L225 Difference]: With dead ends: 130414 [2020-10-15 22:28:58,512 INFO L226 Difference]: Without dead ends: 130370 [2020-10-15 22:28:58,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:28:59,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130370 states. [2020-10-15 22:29:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130370 to 38758. [2020-10-15 22:29:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38758 states. [2020-10-15 22:29:01,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38758 states to 38758 states and 203866 transitions. [2020-10-15 22:29:01,515 INFO L78 Accepts]: Start accepts. Automaton has 38758 states and 203866 transitions. Word has length 29 [2020-10-15 22:29:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:01,515 INFO L481 AbstractCegarLoop]: Abstraction has 38758 states and 203866 transitions. [2020-10-15 22:29:01,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 38758 states and 203866 transitions. [2020-10-15 22:29:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:01,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:01,523 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:01,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2020-10-15 22:29:01,524 INFO L429 AbstractCegarLoop]: === Iteration 98 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:01,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:01,524 INFO L82 PathProgramCache]: Analyzing trace with hash -526111253, now seen corresponding path program 3 times [2020-10-15 22:29:01,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:01,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727714876] [2020-10-15 22:29:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:01,581 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:01,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727714876] [2020-10-15 22:29:01,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:01,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:01,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557452627] [2020-10-15 22:29:01,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:01,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:01,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:01,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:01,583 INFO L87 Difference]: Start difference. First operand 38758 states and 203866 transitions. Second operand 9 states. [2020-10-15 22:29:02,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:02,900 INFO L93 Difference]: Finished difference Result 129953 states and 599494 transitions. [2020-10-15 22:29:02,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:02,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:02,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:03,280 INFO L225 Difference]: With dead ends: 129953 [2020-10-15 22:29:03,280 INFO L226 Difference]: Without dead ends: 129909 [2020-10-15 22:29:03,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:04,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129909 states. [2020-10-15 22:29:05,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129909 to 38350. [2020-10-15 22:29:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38350 states. [2020-10-15 22:29:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38350 states to 38350 states and 201720 transitions. [2020-10-15 22:29:06,086 INFO L78 Accepts]: Start accepts. Automaton has 38350 states and 201720 transitions. Word has length 29 [2020-10-15 22:29:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:06,086 INFO L481 AbstractCegarLoop]: Abstraction has 38350 states and 201720 transitions. [2020-10-15 22:29:06,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 38350 states and 201720 transitions. [2020-10-15 22:29:06,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:06,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:06,095 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:06,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2020-10-15 22:29:06,095 INFO L429 AbstractCegarLoop]: === Iteration 99 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:06,095 INFO L82 PathProgramCache]: Analyzing trace with hash -541000429, now seen corresponding path program 6 times [2020-10-15 22:29:06,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:06,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102480608] [2020-10-15 22:29:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:06,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102480608] [2020-10-15 22:29:06,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:06,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:06,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256998725] [2020-10-15 22:29:06,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:06,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:06,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:06,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:06,712 INFO L87 Difference]: Start difference. First operand 38350 states and 201720 transitions. Second operand 9 states. [2020-10-15 22:29:08,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:08,016 INFO L93 Difference]: Finished difference Result 128408 states and 591144 transitions. [2020-10-15 22:29:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:08,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:08,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:08,382 INFO L225 Difference]: With dead ends: 128408 [2020-10-15 22:29:08,383 INFO L226 Difference]: Without dead ends: 128349 [2020-10-15 22:29:08,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128349 states. [2020-10-15 22:29:11,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128349 to 37756. [2020-10-15 22:29:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37756 states. [2020-10-15 22:29:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37756 states to 37756 states and 198597 transitions. [2020-10-15 22:29:11,206 INFO L78 Accepts]: Start accepts. Automaton has 37756 states and 198597 transitions. Word has length 29 [2020-10-15 22:29:11,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:11,206 INFO L481 AbstractCegarLoop]: Abstraction has 37756 states and 198597 transitions. [2020-10-15 22:29:11,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 37756 states and 198597 transitions. [2020-10-15 22:29:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:11,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:11,214 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:11,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2020-10-15 22:29:11,214 INFO L429 AbstractCegarLoop]: === Iteration 100 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:11,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:11,214 INFO L82 PathProgramCache]: Analyzing trace with hash -540999034, now seen corresponding path program 6 times [2020-10-15 22:29:11,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:11,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216885972] [2020-10-15 22:29:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:11,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216885972] [2020-10-15 22:29:11,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:11,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:11,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023726996] [2020-10-15 22:29:11,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:11,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:11,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:11,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:11,266 INFO L87 Difference]: Start difference. First operand 37756 states and 198597 transitions. Second operand 9 states. [2020-10-15 22:29:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:12,644 INFO L93 Difference]: Finished difference Result 127321 states and 585958 transitions. [2020-10-15 22:29:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:12,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:12,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:13,011 INFO L225 Difference]: With dead ends: 127321 [2020-10-15 22:29:13,011 INFO L226 Difference]: Without dead ends: 127262 [2020-10-15 22:29:13,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:14,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127262 states. [2020-10-15 22:29:15,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127262 to 36966. [2020-10-15 22:29:15,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36966 states. [2020-10-15 22:29:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36966 states to 36966 states and 194506 transitions. [2020-10-15 22:29:16,821 INFO L78 Accepts]: Start accepts. Automaton has 36966 states and 194506 transitions. Word has length 29 [2020-10-15 22:29:16,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:16,821 INFO L481 AbstractCegarLoop]: Abstraction has 36966 states and 194506 transitions. [2020-10-15 22:29:16,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 36966 states and 194506 transitions. [2020-10-15 22:29:16,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:16,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:16,830 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:16,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2020-10-15 22:29:16,830 INFO L429 AbstractCegarLoop]: === Iteration 101 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:16,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:16,830 INFO L82 PathProgramCache]: Analyzing trace with hash -540976962, now seen corresponding path program 3 times [2020-10-15 22:29:16,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:16,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620856726] [2020-10-15 22:29:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:16,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620856726] [2020-10-15 22:29:16,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:16,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:16,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849227072] [2020-10-15 22:29:16,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:16,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:16,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:16,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:16,881 INFO L87 Difference]: Start difference. First operand 36966 states and 194506 transitions. Second operand 9 states. [2020-10-15 22:29:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:18,218 INFO L93 Difference]: Finished difference Result 127898 states and 589602 transitions. [2020-10-15 22:29:18,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:18,219 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:18,595 INFO L225 Difference]: With dead ends: 127898 [2020-10-15 22:29:18,596 INFO L226 Difference]: Without dead ends: 127854 [2020-10-15 22:29:18,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127854 states. [2020-10-15 22:29:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127854 to 36674. [2020-10-15 22:29:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36674 states. [2020-10-15 22:29:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36674 states to 36674 states and 193006 transitions. [2020-10-15 22:29:21,379 INFO L78 Accepts]: Start accepts. Automaton has 36674 states and 193006 transitions. Word has length 29 [2020-10-15 22:29:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:21,379 INFO L481 AbstractCegarLoop]: Abstraction has 36674 states and 193006 transitions. [2020-10-15 22:29:21,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 36674 states and 193006 transitions. [2020-10-15 22:29:21,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:21,386 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:21,386 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:21,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2020-10-15 22:29:21,387 INFO L429 AbstractCegarLoop]: === Iteration 102 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:21,387 INFO L82 PathProgramCache]: Analyzing trace with hash -504923528, now seen corresponding path program 4 times [2020-10-15 22:29:21,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:21,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384069905] [2020-10-15 22:29:21,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:21,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384069905] [2020-10-15 22:29:21,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:21,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:21,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329550612] [2020-10-15 22:29:21,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:21,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:21,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:21,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:21,431 INFO L87 Difference]: Start difference. First operand 36674 states and 193006 transitions. Second operand 9 states. [2020-10-15 22:29:22,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:22,706 INFO L93 Difference]: Finished difference Result 128860 states and 594173 transitions. [2020-10-15 22:29:22,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:22,707 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:22,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:23,083 INFO L225 Difference]: With dead ends: 128860 [2020-10-15 22:29:23,083 INFO L226 Difference]: Without dead ends: 128801 [2020-10-15 22:29:23,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:24,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128801 states. [2020-10-15 22:29:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128801 to 36922. [2020-10-15 22:29:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36922 states. [2020-10-15 22:29:26,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36922 states to 36922 states and 194255 transitions. [2020-10-15 22:29:26,862 INFO L78 Accepts]: Start accepts. Automaton has 36922 states and 194255 transitions. Word has length 29 [2020-10-15 22:29:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:26,863 INFO L481 AbstractCegarLoop]: Abstraction has 36922 states and 194255 transitions. [2020-10-15 22:29:26,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:26,863 INFO L276 IsEmpty]: Start isEmpty. Operand 36922 states and 194255 transitions. [2020-10-15 22:29:26,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:26,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:26,872 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:26,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2020-10-15 22:29:26,872 INFO L429 AbstractCegarLoop]: === Iteration 103 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash -504922133, now seen corresponding path program 4 times [2020-10-15 22:29:26,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:26,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594189506] [2020-10-15 22:29:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:26,923 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:26,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594189506] [2020-10-15 22:29:26,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:26,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:26,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179241170] [2020-10-15 22:29:26,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:26,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:26,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:26,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:26,925 INFO L87 Difference]: Start difference. First operand 36922 states and 194255 transitions. Second operand 9 states. [2020-10-15 22:29:28,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:28,263 INFO L93 Difference]: Finished difference Result 127746 states and 588973 transitions. [2020-10-15 22:29:28,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:28,263 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:28,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:28,667 INFO L225 Difference]: With dead ends: 127746 [2020-10-15 22:29:28,668 INFO L226 Difference]: Without dead ends: 127687 [2020-10-15 22:29:28,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:29,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127687 states. [2020-10-15 22:29:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127687 to 36885. [2020-10-15 22:29:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36885 states. [2020-10-15 22:29:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36885 states to 36885 states and 194028 transitions. [2020-10-15 22:29:31,304 INFO L78 Accepts]: Start accepts. Automaton has 36885 states and 194028 transitions. Word has length 29 [2020-10-15 22:29:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:31,304 INFO L481 AbstractCegarLoop]: Abstraction has 36885 states and 194028 transitions. [2020-10-15 22:29:31,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 36885 states and 194028 transitions. [2020-10-15 22:29:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:31,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:31,312 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:31,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2020-10-15 22:29:31,312 INFO L429 AbstractCegarLoop]: === Iteration 104 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash -504937602, now seen corresponding path program 4 times [2020-10-15 22:29:31,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:31,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289272744] [2020-10-15 22:29:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:31,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289272744] [2020-10-15 22:29:31,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:31,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:31,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137667477] [2020-10-15 22:29:31,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:31,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:31,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:31,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:31,366 INFO L87 Difference]: Start difference. First operand 36885 states and 194028 transitions. Second operand 9 states. [2020-10-15 22:29:32,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:32,734 INFO L93 Difference]: Finished difference Result 126643 states and 584111 transitions. [2020-10-15 22:29:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:32,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:33,090 INFO L225 Difference]: With dead ends: 126643 [2020-10-15 22:29:33,090 INFO L226 Difference]: Without dead ends: 126584 [2020-10-15 22:29:33,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126584 states. [2020-10-15 22:29:36,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126584 to 36688. [2020-10-15 22:29:36,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36688 states. [2020-10-15 22:29:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36688 states to 36688 states and 192991 transitions. [2020-10-15 22:29:36,646 INFO L78 Accepts]: Start accepts. Automaton has 36688 states and 192991 transitions. Word has length 29 [2020-10-15 22:29:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:36,646 INFO L481 AbstractCegarLoop]: Abstraction has 36688 states and 192991 transitions. [2020-10-15 22:29:36,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 36688 states and 192991 transitions. [2020-10-15 22:29:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:36,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:36,654 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:36,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2020-10-15 22:29:36,654 INFO L429 AbstractCegarLoop]: === Iteration 105 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:36,654 INFO L82 PathProgramCache]: Analyzing trace with hash -413562361, now seen corresponding path program 1 times [2020-10-15 22:29:36,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:36,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768705658] [2020-10-15 22:29:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-15 22:29:36,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768705658] [2020-10-15 22:29:36,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:36,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:29:36,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629886370] [2020-10-15 22:29:36,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:29:36,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:36,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:29:36,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:29:36,676 INFO L87 Difference]: Start difference. First operand 36688 states and 192991 transitions. Second operand 5 states. [2020-10-15 22:29:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:37,085 INFO L93 Difference]: Finished difference Result 61979 states and 317658 transitions. [2020-10-15 22:29:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:29:37,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-15 22:29:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:37,263 INFO L225 Difference]: With dead ends: 61979 [2020-10-15 22:29:37,263 INFO L226 Difference]: Without dead ends: 61915 [2020-10-15 22:29:37,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:29:38,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61915 states. [2020-10-15 22:29:38,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61915 to 45529. [2020-10-15 22:29:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45529 states. [2020-10-15 22:29:39,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45529 states to 45529 states and 238865 transitions. [2020-10-15 22:29:39,034 INFO L78 Accepts]: Start accepts. Automaton has 45529 states and 238865 transitions. Word has length 29 [2020-10-15 22:29:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:39,035 INFO L481 AbstractCegarLoop]: Abstraction has 45529 states and 238865 transitions. [2020-10-15 22:29:39,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:29:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand 45529 states and 238865 transitions. [2020-10-15 22:29:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:39,042 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:39,042 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:39,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2020-10-15 22:29:39,043 INFO L429 AbstractCegarLoop]: === Iteration 106 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:39,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:39,043 INFO L82 PathProgramCache]: Analyzing trace with hash 613734392, now seen corresponding path program 5 times [2020-10-15 22:29:39,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:39,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950947081] [2020-10-15 22:29:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:39,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950947081] [2020-10-15 22:29:39,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:39,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:39,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969608846] [2020-10-15 22:29:39,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:39,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:39,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:39,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:39,102 INFO L87 Difference]: Start difference. First operand 45529 states and 238865 transitions. Second operand 9 states. [2020-10-15 22:29:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:40,425 INFO L93 Difference]: Finished difference Result 150731 states and 702613 transitions. [2020-10-15 22:29:40,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:40,426 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:40,842 INFO L225 Difference]: With dead ends: 150731 [2020-10-15 22:29:40,842 INFO L226 Difference]: Without dead ends: 150675 [2020-10-15 22:29:40,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:42,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150675 states. [2020-10-15 22:29:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150675 to 46190. [2020-10-15 22:29:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46190 states. [2020-10-15 22:29:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46190 states to 46190 states and 242332 transitions. [2020-10-15 22:29:44,083 INFO L78 Accepts]: Start accepts. Automaton has 46190 states and 242332 transitions. Word has length 29 [2020-10-15 22:29:44,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:44,083 INFO L481 AbstractCegarLoop]: Abstraction has 46190 states and 242332 transitions. [2020-10-15 22:29:44,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 46190 states and 242332 transitions. [2020-10-15 22:29:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:44,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:44,091 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:44,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2020-10-15 22:29:44,092 INFO L429 AbstractCegarLoop]: === Iteration 107 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:44,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:44,092 INFO L82 PathProgramCache]: Analyzing trace with hash 613735787, now seen corresponding path program 5 times [2020-10-15 22:29:44,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:44,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402185942] [2020-10-15 22:29:44,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:44,146 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:44,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402185942] [2020-10-15 22:29:44,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:44,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:44,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654585990] [2020-10-15 22:29:44,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:44,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:44,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:44,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:44,149 INFO L87 Difference]: Start difference. First operand 46190 states and 242332 transitions. Second operand 9 states. [2020-10-15 22:29:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:45,827 INFO L93 Difference]: Finished difference Result 149511 states and 696801 transitions. [2020-10-15 22:29:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:45,828 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:46,265 INFO L225 Difference]: With dead ends: 149511 [2020-10-15 22:29:46,265 INFO L226 Difference]: Without dead ends: 149455 [2020-10-15 22:29:46,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149455 states. [2020-10-15 22:29:49,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149455 to 46554. [2020-10-15 22:29:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46554 states. [2020-10-15 22:29:49,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46554 states to 46554 states and 244235 transitions. [2020-10-15 22:29:49,575 INFO L78 Accepts]: Start accepts. Automaton has 46554 states and 244235 transitions. Word has length 29 [2020-10-15 22:29:49,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:49,575 INFO L481 AbstractCegarLoop]: Abstraction has 46554 states and 244235 transitions. [2020-10-15 22:29:49,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 46554 states and 244235 transitions. [2020-10-15 22:29:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:49,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:49,583 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:49,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2020-10-15 22:29:49,584 INFO L429 AbstractCegarLoop]: === Iteration 108 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:49,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash 613720318, now seen corresponding path program 5 times [2020-10-15 22:29:49,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:49,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328587083] [2020-10-15 22:29:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:49,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328587083] [2020-10-15 22:29:49,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:49,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:49,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832850451] [2020-10-15 22:29:49,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:49,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:49,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:49,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:49,635 INFO L87 Difference]: Start difference. First operand 46554 states and 244235 transitions. Second operand 9 states. [2020-10-15 22:29:51,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:51,051 INFO L93 Difference]: Finished difference Result 148338 states and 691501 transitions. [2020-10-15 22:29:51,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:51,052 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:51,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:51,500 INFO L225 Difference]: With dead ends: 148338 [2020-10-15 22:29:51,500 INFO L226 Difference]: Without dead ends: 148282 [2020-10-15 22:29:51,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:52,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148282 states. [2020-10-15 22:29:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148282 to 46429. [2020-10-15 22:29:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46429 states. [2020-10-15 22:29:55,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46429 states to 46429 states and 243498 transitions. [2020-10-15 22:29:55,619 INFO L78 Accepts]: Start accepts. Automaton has 46429 states and 243498 transitions. Word has length 29 [2020-10-15 22:29:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:29:55,620 INFO L481 AbstractCegarLoop]: Abstraction has 46429 states and 243498 transitions. [2020-10-15 22:29:55,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:29:55,620 INFO L276 IsEmpty]: Start isEmpty. Operand 46429 states and 243498 transitions. [2020-10-15 22:29:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:29:55,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:29:55,629 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:29:55,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2020-10-15 22:29:55,629 INFO L429 AbstractCegarLoop]: === Iteration 109 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:29:55,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:29:55,629 INFO L82 PathProgramCache]: Analyzing trace with hash 614716472, now seen corresponding path program 6 times [2020-10-15 22:29:55,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:29:55,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738810559] [2020-10-15 22:29:55,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:29:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:29:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:29:55,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738810559] [2020-10-15 22:29:55,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:29:55,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:29:55,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724209290] [2020-10-15 22:29:55,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:29:55,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:29:55,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:29:55,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:29:55,681 INFO L87 Difference]: Start difference. First operand 46429 states and 243498 transitions. Second operand 9 states. [2020-10-15 22:29:57,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:57,170 INFO L93 Difference]: Finished difference Result 148415 states and 691326 transitions. [2020-10-15 22:29:57,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:29:57,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:29:57,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:57,653 INFO L225 Difference]: With dead ends: 148415 [2020-10-15 22:29:57,653 INFO L226 Difference]: Without dead ends: 148344 [2020-10-15 22:29:57,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:29:59,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148344 states. [2020-10-15 22:30:00,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148344 to 45169. [2020-10-15 22:30:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45169 states. [2020-10-15 22:30:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45169 states to 45169 states and 236894 transitions. [2020-10-15 22:30:01,006 INFO L78 Accepts]: Start accepts. Automaton has 45169 states and 236894 transitions. Word has length 29 [2020-10-15 22:30:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:01,006 INFO L481 AbstractCegarLoop]: Abstraction has 45169 states and 236894 transitions. [2020-10-15 22:30:01,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:30:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 45169 states and 236894 transitions. [2020-10-15 22:30:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:30:01,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:01,014 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:01,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2020-10-15 22:30:01,014 INFO L429 AbstractCegarLoop]: === Iteration 110 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:01,015 INFO L82 PathProgramCache]: Analyzing trace with hash 616057067, now seen corresponding path program 6 times [2020-10-15 22:30:01,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:01,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569344309] [2020-10-15 22:30:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:01,062 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:30:01,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569344309] [2020-10-15 22:30:01,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:01,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:30:01,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489647419] [2020-10-15 22:30:01,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:30:01,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:01,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:30:01,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:30:01,064 INFO L87 Difference]: Start difference. First operand 45169 states and 236894 transitions. Second operand 9 states. [2020-10-15 22:30:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:02,605 INFO L93 Difference]: Finished difference Result 147425 states and 686023 transitions. [2020-10-15 22:30:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:30:02,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:30:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:03,090 INFO L225 Difference]: With dead ends: 147425 [2020-10-15 22:30:03,090 INFO L226 Difference]: Without dead ends: 147354 [2020-10-15 22:30:03,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:30:05,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147354 states. [2020-10-15 22:30:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147354 to 43980. [2020-10-15 22:30:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43980 states. [2020-10-15 22:30:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43980 states to 43980 states and 230752 transitions. [2020-10-15 22:30:07,029 INFO L78 Accepts]: Start accepts. Automaton has 43980 states and 230752 transitions. Word has length 29 [2020-10-15 22:30:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:07,029 INFO L481 AbstractCegarLoop]: Abstraction has 43980 states and 230752 transitions. [2020-10-15 22:30:07,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:30:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 43980 states and 230752 transitions. [2020-10-15 22:30:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 22:30:07,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:07,037 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:07,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2020-10-15 22:30:07,037 INFO L429 AbstractCegarLoop]: === Iteration 111 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:07,038 INFO L82 PathProgramCache]: Analyzing trace with hash 601191358, now seen corresponding path program 6 times [2020-10-15 22:30:07,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:07,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059472871] [2020-10-15 22:30:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-15 22:30:07,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059472871] [2020-10-15 22:30:07,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:07,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-15 22:30:07,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184220125] [2020-10-15 22:30:07,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 22:30:07,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:07,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 22:30:07,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:30:07,089 INFO L87 Difference]: Start difference. First operand 43980 states and 230752 transitions. Second operand 9 states. [2020-10-15 22:30:08,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:08,494 INFO L93 Difference]: Finished difference Result 146606 states and 682087 transitions. [2020-10-15 22:30:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 22:30:08,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-10-15 22:30:08,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:08,912 INFO L225 Difference]: With dead ends: 146606 [2020-10-15 22:30:08,913 INFO L226 Difference]: Without dead ends: 146535 [2020-10-15 22:30:08,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-10-15 22:30:10,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146535 states. [2020-10-15 22:30:12,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146535 to 42813. [2020-10-15 22:30:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42813 states. [2020-10-15 22:30:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42813 states to 42813 states and 224792 transitions. [2020-10-15 22:30:12,147 INFO L78 Accepts]: Start accepts. Automaton has 42813 states and 224792 transitions. Word has length 29 [2020-10-15 22:30:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:12,147 INFO L481 AbstractCegarLoop]: Abstraction has 42813 states and 224792 transitions. [2020-10-15 22:30:12,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 22:30:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 42813 states and 224792 transitions. [2020-10-15 22:30:12,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-15 22:30:12,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:12,157 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:12,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2020-10-15 22:30:12,157 INFO L429 AbstractCegarLoop]: === Iteration 112 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:12,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:12,157 INFO L82 PathProgramCache]: Analyzing trace with hash 58023263, now seen corresponding path program 1 times [2020-10-15 22:30:12,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:12,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823718547] [2020-10-15 22:30:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:30:12,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:30:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:30:12,167 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:30:12,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:30:12,175 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:30:12,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2020-10-15 22:30:12,176 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:30:12,176 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 22:30:12,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,192 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,192 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,193 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,199 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,200 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,211 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,211 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,211 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,217 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,217 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,219 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,225 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,229 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,230 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,230 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,230 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,230 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,231 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,232 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,232 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,235 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,236 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,237 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,238 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,239 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,239 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,240 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,240 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,241 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,243 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:30:12,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-15 22:30:12,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:30:12,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:30:12,246 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:30:12,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:30:12,246 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:30:12,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:30:12,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:30:12,246 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:30:12,247 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:30:12,247 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:12,248 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:12,248 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 181 places, 159 transitions, 472 flow [2020-10-15 22:30:12,269 INFO L129 PetriNetUnfolder]: 9/193 cut-off events. [2020-10-15 22:30:12,270 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-15 22:30:12,271 INFO L80 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 193 events. 9/193 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 334 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 237. Up to 16 conditions per place. [2020-10-15 22:30:12,279 INFO L117 LiptonReduction]: Number of co-enabled transitions 4448 [2020-10-15 22:30:12,999 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-15 22:30:15,203 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-15 22:30:15,304 INFO L132 LiptonReduction]: Checked pairs total: 7296 [2020-10-15 22:30:15,304 INFO L134 LiptonReduction]: Total number of compositions: 148 [2020-10-15 22:30:15,304 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 51 transitions, 256 flow [2020-10-15 22:30:25,174 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 55763 states. [2020-10-15 22:30:25,174 INFO L276 IsEmpty]: Start isEmpty. Operand 55763 states. [2020-10-15 22:30:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-15 22:30:25,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:25,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-15 22:30:25,175 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:25,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:25,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1622843, now seen corresponding path program 1 times [2020-10-15 22:30:25,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:25,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661288722] [2020-10-15 22:30:25,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:30:25,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661288722] [2020-10-15 22:30:25,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:25,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 22:30:25,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742928558] [2020-10-15 22:30:25,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:30:25,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:25,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:30:25,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:30:25,186 INFO L87 Difference]: Start difference. First operand 55763 states. Second operand 3 states. [2020-10-15 22:30:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:25,578 INFO L93 Difference]: Finished difference Result 54360 states and 318970 transitions. [2020-10-15 22:30:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:30:25,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-15 22:30:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:25,756 INFO L225 Difference]: With dead ends: 54360 [2020-10-15 22:30:25,756 INFO L226 Difference]: Without dead ends: 51079 [2020-10-15 22:30:25,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:30:29,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51079 states. [2020-10-15 22:30:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51079 to 51079. [2020-10-15 22:30:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51079 states. [2020-10-15 22:30:30,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51079 states to 51079 states and 298193 transitions. [2020-10-15 22:30:30,974 INFO L78 Accepts]: Start accepts. Automaton has 51079 states and 298193 transitions. Word has length 3 [2020-10-15 22:30:30,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:30,974 INFO L481 AbstractCegarLoop]: Abstraction has 51079 states and 298193 transitions. [2020-10-15 22:30:30,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:30:30,974 INFO L276 IsEmpty]: Start isEmpty. Operand 51079 states and 298193 transitions. [2020-10-15 22:30:30,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:30:30,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:30,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:30,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2020-10-15 22:30:30,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:30,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1940021698, now seen corresponding path program 1 times [2020-10-15 22:30:30,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:30,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672923495] [2020-10-15 22:30:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:30:30,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672923495] [2020-10-15 22:30:30,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:30,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:30:30,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548925111] [2020-10-15 22:30:30,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:30:30,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:30,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:30:30,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:30:30,993 INFO L87 Difference]: Start difference. First operand 51079 states and 298193 transitions. Second operand 5 states. [2020-10-15 22:30:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:31,624 INFO L93 Difference]: Finished difference Result 96937 states and 538177 transitions. [2020-10-15 22:30:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:30:31,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-15 22:30:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:31,938 INFO L225 Difference]: With dead ends: 96937 [2020-10-15 22:30:31,938 INFO L226 Difference]: Without dead ends: 96928 [2020-10-15 22:30:31,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:30:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96928 states. [2020-10-15 22:30:37,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96928 to 61361. [2020-10-15 22:30:37,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61361 states. [2020-10-15 22:30:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61361 states to 61361 states and 361700 transitions. [2020-10-15 22:30:43,872 INFO L78 Accepts]: Start accepts. Automaton has 61361 states and 361700 transitions. Word has length 9 [2020-10-15 22:30:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:43,872 INFO L481 AbstractCegarLoop]: Abstraction has 61361 states and 361700 transitions. [2020-10-15 22:30:43,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:30:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 61361 states and 361700 transitions. [2020-10-15 22:30:43,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:30:43,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:43,872 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:43,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2020-10-15 22:30:43,872 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:43,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:43,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1408430290, now seen corresponding path program 1 times [2020-10-15 22:30:43,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:43,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157490526] [2020-10-15 22:30:43,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:30:43,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157490526] [2020-10-15 22:30:43,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:43,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:30:43,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495209977] [2020-10-15 22:30:43,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:30:43,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:43,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:30:43,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:30:43,891 INFO L87 Difference]: Start difference. First operand 61361 states and 361700 transitions. Second operand 5 states. [2020-10-15 22:30:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:44,698 INFO L93 Difference]: Finished difference Result 115105 states and 647870 transitions. [2020-10-15 22:30:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:30:44,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:30:44,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:45,119 INFO L225 Difference]: With dead ends: 115105 [2020-10-15 22:30:45,119 INFO L226 Difference]: Without dead ends: 115086 [2020-10-15 22:30:45,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:30:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115086 states. [2020-10-15 22:30:57,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115086 to 74729. [2020-10-15 22:30:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74729 states. [2020-10-15 22:30:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74729 states to 74729 states and 446528 transitions. [2020-10-15 22:30:57,811 INFO L78 Accepts]: Start accepts. Automaton has 74729 states and 446528 transitions. Word has length 13 [2020-10-15 22:30:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:30:57,812 INFO L481 AbstractCegarLoop]: Abstraction has 74729 states and 446528 transitions. [2020-10-15 22:30:57,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:30:57,812 INFO L276 IsEmpty]: Start isEmpty. Operand 74729 states and 446528 transitions. [2020-10-15 22:30:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:30:57,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:30:57,812 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:30:57,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2020-10-15 22:30:57,812 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:30:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:30:57,813 INFO L82 PathProgramCache]: Analyzing trace with hash 586807343, now seen corresponding path program 1 times [2020-10-15 22:30:57,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:30:57,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924338636] [2020-10-15 22:30:57,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:30:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:30:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:30:57,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924338636] [2020-10-15 22:30:57,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:30:57,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:30:57,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19262553] [2020-10-15 22:30:57,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:30:57,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:30:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:30:57,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:30:57,846 INFO L87 Difference]: Start difference. First operand 74729 states and 446528 transitions. Second operand 7 states. [2020-10-15 22:30:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:30:59,104 INFO L93 Difference]: Finished difference Result 183405 states and 977356 transitions. [2020-10-15 22:30:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:30:59,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:30:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:30:59,690 INFO L225 Difference]: With dead ends: 183405 [2020-10-15 22:30:59,690 INFO L226 Difference]: Without dead ends: 183386 [2020-10-15 22:30:59,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:31:04,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183386 states. [2020-10-15 22:31:08,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183386 to 74375. [2020-10-15 22:31:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74375 states. [2020-10-15 22:31:08,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74375 states to 74375 states and 444112 transitions. [2020-10-15 22:31:08,358 INFO L78 Accepts]: Start accepts. Automaton has 74375 states and 444112 transitions. Word has length 15 [2020-10-15 22:31:08,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:08,358 INFO L481 AbstractCegarLoop]: Abstraction has 74375 states and 444112 transitions. [2020-10-15 22:31:08,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:31:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 74375 states and 444112 transitions. [2020-10-15 22:31:08,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:31:08,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:08,359 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:08,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2020-10-15 22:31:08,359 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:31:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:08,359 INFO L82 PathProgramCache]: Analyzing trace with hash 576093743, now seen corresponding path program 2 times [2020-10-15 22:31:08,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:08,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776502133] [2020-10-15 22:31:08,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:31:08,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776502133] [2020-10-15 22:31:08,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:31:08,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:31:08,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914195233] [2020-10-15 22:31:08,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:31:08,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:08,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:31:08,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:08,392 INFO L87 Difference]: Start difference. First operand 74375 states and 444112 transitions. Second operand 7 states. [2020-10-15 22:31:09,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:09,689 INFO L93 Difference]: Finished difference Result 188187 states and 1003599 transitions. [2020-10-15 22:31:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:31:09,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-15 22:31:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:10,283 INFO L225 Difference]: With dead ends: 188187 [2020-10-15 22:31:10,283 INFO L226 Difference]: Without dead ends: 188167 [2020-10-15 22:31:10,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:31:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188167 states. [2020-10-15 22:31:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188167 to 73326. [2020-10-15 22:31:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73326 states. [2020-10-15 22:31:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73326 states to 73326 states and 437534 transitions. [2020-10-15 22:31:19,703 INFO L78 Accepts]: Start accepts. Automaton has 73326 states and 437534 transitions. Word has length 15 [2020-10-15 22:31:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:19,703 INFO L481 AbstractCegarLoop]: Abstraction has 73326 states and 437534 transitions. [2020-10-15 22:31:19,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:31:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 73326 states and 437534 transitions. [2020-10-15 22:31:19,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-15 22:31:19,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:19,704 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:19,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2020-10-15 22:31:19,704 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:31:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:19,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1852086090, now seen corresponding path program 1 times [2020-10-15 22:31:19,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:19,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911432414] [2020-10-15 22:31:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:31:19,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911432414] [2020-10-15 22:31:19,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:31:19,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:31:19,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922177676] [2020-10-15 22:31:19,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:31:19,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:19,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:31:19,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:31:19,724 INFO L87 Difference]: Start difference. First operand 73326 states and 437534 transitions. Second operand 5 states. [2020-10-15 22:31:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:25,963 INFO L93 Difference]: Finished difference Result 136306 states and 779274 transitions. [2020-10-15 22:31:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:31:25,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-15 22:31:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:26,447 INFO L225 Difference]: With dead ends: 136306 [2020-10-15 22:31:26,447 INFO L226 Difference]: Without dead ends: 136270 [2020-10-15 22:31:26,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136270 states. [2020-10-15 22:31:33,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136270 to 91328. [2020-10-15 22:31:33,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91328 states. [2020-10-15 22:31:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91328 states to 91328 states and 551878 transitions. [2020-10-15 22:31:34,083 INFO L78 Accepts]: Start accepts. Automaton has 91328 states and 551878 transitions. Word has length 17 [2020-10-15 22:31:34,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:34,083 INFO L481 AbstractCegarLoop]: Abstraction has 91328 states and 551878 transitions. [2020-10-15 22:31:34,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:31:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 91328 states and 551878 transitions. [2020-10-15 22:31:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:31:34,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:34,084 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:34,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2020-10-15 22:31:34,084 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:31:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:34,084 INFO L82 PathProgramCache]: Analyzing trace with hash 805259199, now seen corresponding path program 1 times [2020-10-15 22:31:34,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:34,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885368418] [2020-10-15 22:31:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:31:34,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885368418] [2020-10-15 22:31:34,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034333720] [2020-10-15 22:31:34,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:31:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:34,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:31:34,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:31:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:31:34,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:31:34,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 22:31:34,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485351059] [2020-10-15 22:31:34,221 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:31:34,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:34,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:31:34,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:34,221 INFO L87 Difference]: Start difference. First operand 91328 states and 551878 transitions. Second operand 7 states. [2020-10-15 22:31:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:35,830 INFO L93 Difference]: Finished difference Result 220702 states and 1196059 transitions. [2020-10-15 22:31:35,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:31:35,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:31:35,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:36,573 INFO L225 Difference]: With dead ends: 220702 [2020-10-15 22:31:36,574 INFO L226 Difference]: Without dead ends: 220672 [2020-10-15 22:31:36,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:31:44,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220672 states. [2020-10-15 22:31:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220672 to 92876. [2020-10-15 22:31:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92876 states. [2020-10-15 22:31:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92876 states to 92876 states and 560664 transitions. [2020-10-15 22:31:56,258 INFO L78 Accepts]: Start accepts. Automaton has 92876 states and 560664 transitions. Word has length 19 [2020-10-15 22:31:56,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:31:56,259 INFO L481 AbstractCegarLoop]: Abstraction has 92876 states and 560664 transitions. [2020-10-15 22:31:56,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:31:56,259 INFO L276 IsEmpty]: Start isEmpty. Operand 92876 states and 560664 transitions. [2020-10-15 22:31:56,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 22:31:56,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:31:56,259 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:31:56,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193,79 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:31:56,460 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:31:56,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:31:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1738279999, now seen corresponding path program 2 times [2020-10-15 22:31:56,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:31:56,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007243796] [2020-10-15 22:31:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:31:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:31:56,496 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 22:31:56,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007243796] [2020-10-15 22:31:56,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:31:56,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 22:31:56,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952530510] [2020-10-15 22:31:56,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:31:56,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:31:56,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:31:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:31:56,498 INFO L87 Difference]: Start difference. First operand 92876 states and 560664 transitions. Second operand 7 states. [2020-10-15 22:31:58,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:31:58,178 INFO L93 Difference]: Finished difference Result 226856 states and 1230554 transitions. [2020-10-15 22:31:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 22:31:58,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 22:31:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:31:58,920 INFO L225 Difference]: With dead ends: 226856 [2020-10-15 22:31:58,920 INFO L226 Difference]: Without dead ends: 226815 [2020-10-15 22:31:58,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-10-15 22:32:06,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226815 states. [2020-10-15 22:32:09,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226815 to 91841. [2020-10-15 22:32:09,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91841 states. Received shutdown request... [2020-10-15 22:32:17,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2020-10-15 22:32:17,739 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 22:32:17,742 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 22:32:17,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:32:17 BasicIcfg [2020-10-15 22:32:17,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:32:17,744 INFO L168 Benchmark]: Toolchain (without parser) took 776145.35 ms. Allocated memory was 246.4 MB in the beginning and 6.1 GB in the end (delta: 5.9 GB). Free memory was 199.1 MB in the beginning and 4.2 GB in the end (delta: -4.0 GB). Peak memory consumption was 6.0 GB. Max. memory is 14.2 GB. [2020-10-15 22:32:17,744 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 246.4 MB. Free memory is still 220.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:32:17,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.53 ms. Allocated memory was 246.4 MB in the beginning and 297.8 MB in the end (delta: 51.4 MB). Free memory was 199.1 MB in the beginning and 253.1 MB in the end (delta: -54.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:17,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 297.8 MB. Free memory is still 253.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:32:17,745 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 ms. Allocated memory is still 297.8 MB. Free memory was 253.1 MB in the beginning and 250.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:17,745 INFO L168 Benchmark]: RCFGBuilder took 405.37 ms. Allocated memory is still 297.8 MB. Free memory was 250.6 MB in the beginning and 231.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. [2020-10-15 22:32:17,746 INFO L168 Benchmark]: TraceAbstraction took 774985.70 ms. Allocated memory was 297.8 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 231.3 MB in the beginning and 4.2 GB in the end (delta: -4.0 GB). Peak memory consumption was 6.0 GB. Max. memory is 14.2 GB. [2020-10-15 22:32:17,747 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 246.4 MB. Free memory is still 220.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 675.53 ms. Allocated memory was 246.4 MB in the beginning and 297.8 MB in the end (delta: 51.4 MB). Free memory was 199.1 MB in the beginning and 253.1 MB in the end (delta: -54.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.00 ms. Allocated memory is still 297.8 MB. Free memory is still 253.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.91 ms. Allocated memory is still 297.8 MB. Free memory was 253.1 MB in the beginning and 250.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 405.37 ms. Allocated memory is still 297.8 MB. Free memory was 250.6 MB in the beginning and 231.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 774985.70 ms. Allocated memory was 297.8 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 231.3 MB in the beginning and 4.2 GB in the end (delta: -4.0 GB). Peak memory consumption was 6.0 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 484 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 4 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 55 PlacesBefore, 18 PlacesAfterwards, 51 TransitionsBefore, 12 TransitionsAfterwards, 692 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 47 TotalNumberOfCompositions, 670 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 726 VarBasedMoverChecksPositive, 8 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 8 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 32 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 76 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 5 FixpointIterations, 25 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 62 TotalNumberOfCompositions, 1240 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 945 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 39 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 97 PlacesBefore, 41 PlacesAfterwards, 87 TransitionsBefore, 27 TransitionsAfterwards, 1608 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 77 TotalNumberOfCompositions, 2157 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1337 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 76 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 118 PlacesBefore, 51 PlacesAfterwards, 105 TransitionsBefore, 33 TransitionsAfterwards, 2192 CoEnabledTransitionPairs, 5 FixpointIterations, 43 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 5 ConcurrentYvCompositions, 5 ChoiceCompositions, 97 TotalNumberOfCompositions, 2978 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1675 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 139 PlacesBefore, 61 PlacesAfterwards, 123 TransitionsBefore, 39 TransitionsAfterwards, 2860 CoEnabledTransitionPairs, 5 FixpointIterations, 59 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 121 TotalNumberOfCompositions, 4168 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2181 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 113 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 160 PlacesBefore, 71 PlacesAfterwards, 141 TransitionsBefore, 45 TransitionsAfterwards, 3612 CoEnabledTransitionPairs, 5 FixpointIterations, 66 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 4 ConcurrentYvCompositions, 7 ChoiceCompositions, 134 TotalNumberOfCompositions, 5372 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2735 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 127 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.0s, 181 PlacesBefore, 81 PlacesAfterwards, 159 TransitionsBefore, 51 TransitionsAfterwards, 4448 CoEnabledTransitionPairs, 5 FixpointIterations, 74 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 3 ConcurrentYvCompositions, 8 ChoiceCompositions, 148 TotalNumberOfCompositions, 7296 MoverChecksTotal - TimeoutResultAtElement [Line: 679]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 679). Cancelled while ReachableStatesComputation was computing reachable states (42312 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 1 error locations. Started 7 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 774.5s, OverallIterations: 195, TraceHistogramMax: 7, AutomataDifference: 259.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 24.5s, HoareTripleCheckerStatistics: 15762 SDtfs, 49020 SDslu, 58008 SDs, 0 SdLazy, 65279 SolverSat, 5062 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6852 GetRequests, 1694 SyntacticMatches, 0 SemanticMatches, 5158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60629 ImplicationChecksByTransitivity, 51.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92876occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 454.0s AutomataMinimizationTime, 189 MinimizatonAttempts, 11135395 StatesRemovedByMinimization, 180 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 6309 NumberOfCodeBlocks, 6233 NumberOfCodeBlocksAsserted, 328 NumberOfCheckSat, 5924 ConstructedInterpolants, 0 QuantifiedInterpolants, 422232 SizeOfPredicates, 456 NumberOfNonLiveVariables, 9748 ConjunctsInSsa, 612 ConjunctsInUnsatCore, 267 InterpolantComputations, 111 PerfectInterpolantSequences, 3228/4674 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown