/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:39:50,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:39:50,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:39:50,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-09-17 01:39:50,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:39:50,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:39:50,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:39:50,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:39:50,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:39:50,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:39:50,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:39:50,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:39:50,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:39:50,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:39:50,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:39:50,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:39:50,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 01:39:50,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:39:50,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:39:50,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:39:50,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:39:50,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:39:50,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:39:50,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:39:50,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:39:50,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:39:50,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:39:50,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:39:50,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 01:39:50,339 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:39:50,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:39:50,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:39:50,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:39:50,342 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:39:50,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:39:50,343 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:39:50,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:39:50,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:39:50,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:39:50,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:39:50,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:39:50,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:39:50,346 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:39:50,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:39:50,346 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:39:50,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:39:50,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:39:50,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:39:50,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:39:50,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:39:50,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:39:50,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:39:50,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:39:50,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:39:50,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:39:50,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:39:50,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:39:50,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:39:50,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:39:50,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:39:50,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:39:50,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:39:50,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:39:50,870 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:39:50,871 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-09-17 01:39:50,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36a3fb0e1/922fad6ef47f4fc19a0e9fa997f76251/FLAGc36801157 [2020-09-17 01:39:51,642 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:39:51,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2020-09-17 01:39:51,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36a3fb0e1/922fad6ef47f4fc19a0e9fa997f76251/FLAGc36801157 [2020-09-17 01:39:51,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36a3fb0e1/922fad6ef47f4fc19a0e9fa997f76251 [2020-09-17 01:39:51,921 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:39:51,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:39:51,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:39:51,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:39:51,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:39:51,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:39:51" (1/1) ... [2020-09-17 01:39:51,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c331e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:51, skipping insertion in model container [2020-09-17 01:39:51,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:39:51" (1/1) ... [2020-09-17 01:39:51,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:39:52,004 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:39:52,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:39:52,548 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:39:52,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:39:52,719 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:39:52,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52 WrapperNode [2020-09-17 01:39:52,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:39:52,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:39:52,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:39:52,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:39:52,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:39:52,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:39:52,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:39:52,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:39:52,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (1/1) ... [2020-09-17 01:39:52,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:39:52,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:39:52,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:39:52,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:39:52,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (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 [2020-09-17 01:39:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-09-17 01:39:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-09-17 01:39:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-17 01:39:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-17 01:39:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:39:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:39:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:39:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:39:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:39:52,907 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:39:53,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:39:53,222 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-09-17 01:39:53,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:39:53 BoogieIcfgContainer [2020-09-17 01:39:53,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:39:53,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:39:53,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:39:53,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:39:53,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:39:51" (1/3) ... [2020-09-17 01:39:53,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1671c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:39:53, skipping insertion in model container [2020-09-17 01:39:53,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:39:52" (2/3) ... [2020-09-17 01:39:53,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1671c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:39:53, skipping insertion in model container [2020-09-17 01:39:53,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:39:53" (3/3) ... [2020-09-17 01:39:53,240 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2020-09-17 01:39:53,255 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:39:53,255 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:39:53,267 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:39:53,268 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:39:53,304 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,304 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,306 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,306 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,306 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,307 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,308 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,308 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,316 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,317 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,317 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,318 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:53,352 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:39:53,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:39:53,383 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:39:53,383 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:39:53,383 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:39:53,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:39:53,383 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:39:53,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:39:53,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:39:53,402 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 112 flow [2020-09-17 01:39:53,406 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 112 flow [2020-09-17 01:39:53,457 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-09-17 01:39:53,457 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:39:53,464 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. [2020-09-17 01:39:53,467 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 112 flow [2020-09-17 01:39:53,491 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2020-09-17 01:39:53,491 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:39:53,492 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. [2020-09-17 01:39:53,495 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 692 [2020-09-17 01:39:53,496 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:39:54,785 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-09-17 01:39:54,855 INFO L206 etLargeBlockEncoding]: Checked pairs total: 576 [2020-09-17 01:39:54,856 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2020-09-17 01:39:54,860 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 12 transitions, 34 flow [2020-09-17 01:39:54,873 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-09-17 01:39:54,876 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-17 01:39:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:39:54,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:54,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:39:54,887 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:39:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:54,895 INFO L82 PathProgramCache]: Analyzing trace with hash 208056, now seen corresponding path program 1 times [2020-09-17 01:39:54,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:54,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87738597] [2020-09-17 01:39:54,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:55,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:55,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87738597] [2020-09-17 01:39:55,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:55,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:39:55,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042116392] [2020-09-17 01:39:55,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:39:55,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:55,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:39:55,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:39:55,178 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-09-17 01:39:55,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:55,216 INFO L93 Difference]: Finished difference Result 35 states and 59 transitions. [2020-09-17 01:39:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:39:55,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:39:55,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:55,233 INFO L225 Difference]: With dead ends: 35 [2020-09-17 01:39:55,233 INFO L226 Difference]: Without dead ends: 31 [2020-09-17 01:39:55,235 INFO L675 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 [2020-09-17 01:39:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-17 01:39:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-17 01:39:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-17 01:39:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 51 transitions. [2020-09-17 01:39:55,289 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 51 transitions. Word has length 3 [2020-09-17 01:39:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:55,289 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 51 transitions. [2020-09-17 01:39:55,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:39:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 51 transitions. [2020-09-17 01:39:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-17 01:39:55,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:55,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:55,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:39:55,291 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:39:55,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:55,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1139052385, now seen corresponding path program 1 times [2020-09-17 01:39:55,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:55,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193313034] [2020-09-17 01:39:55,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:55,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193313034] [2020-09-17 01:39:55,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:55,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:39:55,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843886251] [2020-09-17 01:39:55,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:39:55,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:39:55,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:39:55,389 INFO L87 Difference]: Start difference. First operand 31 states and 51 transitions. Second operand 4 states. [2020-09-17 01:39:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:55,408 INFO L93 Difference]: Finished difference Result 26 states and 42 transitions. [2020-09-17 01:39:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:39:55,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-09-17 01:39:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:55,410 INFO L225 Difference]: With dead ends: 26 [2020-09-17 01:39:55,410 INFO L226 Difference]: Without dead ends: 24 [2020-09-17 01:39:55,411 INFO L675 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 [2020-09-17 01:39:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-17 01:39:55,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-09-17 01:39:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-09-17 01:39:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-09-17 01:39:55,416 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 39 transitions. Word has length 7 [2020-09-17 01:39:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:55,416 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-09-17 01:39:55,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:39:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 39 transitions. [2020-09-17 01:39:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:39:55,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:55,418 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:55,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:39:55,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:39:55,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:55,419 INFO L82 PathProgramCache]: Analyzing trace with hash -950894116, now seen corresponding path program 1 times [2020-09-17 01:39:55,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:55,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90120444] [2020-09-17 01:39:55,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:39:55,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:39:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:39:55,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:39:55,496 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:39:55,496 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:39:55,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:39:55,498 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 01:39:55,498 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-17 01:39:55,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,510 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,511 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,511 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,512 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,512 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,512 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,518 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,518 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,519 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,519 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,519 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,519 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,520 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,523 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,523 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,523 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,528 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:55,534 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 01:39:55,534 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:39:55,534 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:39:55,535 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:39:55,535 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:39:55,535 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:39:55,535 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:39:55,535 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:39:55,535 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:39:55,539 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 69 transitions, 162 flow [2020-09-17 01:39:55,539 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 162 flow [2020-09-17 01:39:55,559 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2020-09-17 01:39:55,559 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-17 01:39:55,561 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. [2020-09-17 01:39:55,563 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 69 transitions, 162 flow [2020-09-17 01:39:55,580 INFO L129 PetriNetUnfolder]: 4/83 cut-off events. [2020-09-17 01:39:55,581 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-17 01:39:55,582 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. [2020-09-17 01:39:55,584 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1108 [2020-09-17 01:39:55,584 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:39:56,837 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-09-17 01:39:56,913 INFO L206 etLargeBlockEncoding]: Checked pairs total: 964 [2020-09-17 01:39:56,914 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-17 01:39:56,914 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 66 flow [2020-09-17 01:39:56,941 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 224 states. [2020-09-17 01:39:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states. [2020-09-17 01:39:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:39:56,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:56,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:39:56,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:56,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:56,943 INFO L82 PathProgramCache]: Analyzing trace with hash 354555, now seen corresponding path program 1 times [2020-09-17 01:39:56,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:56,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199082173] [2020-09-17 01:39:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:57,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199082173] [2020-09-17 01:39:57,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:57,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:39:57,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178274423] [2020-09-17 01:39:57,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:39:57,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:57,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:39:57,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:39:57,026 INFO L87 Difference]: Start difference. First operand 224 states. Second operand 3 states. [2020-09-17 01:39:57,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:57,056 INFO L93 Difference]: Finished difference Result 185 states and 459 transitions. [2020-09-17 01:39:57,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:39:57,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:39:57,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:57,062 INFO L225 Difference]: With dead ends: 185 [2020-09-17 01:39:57,062 INFO L226 Difference]: Without dead ends: 171 [2020-09-17 01:39:57,062 INFO L675 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 [2020-09-17 01:39:57,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-17 01:39:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2020-09-17 01:39:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2020-09-17 01:39:57,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 418 transitions. [2020-09-17 01:39:57,093 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 418 transitions. Word has length 3 [2020-09-17 01:39:57,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:57,093 INFO L479 AbstractCegarLoop]: Abstraction has 171 states and 418 transitions. [2020-09-17 01:39:57,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:39:57,094 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 418 transitions. [2020-09-17 01:39:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:39:57,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:57,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:57,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:39:57,095 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:57,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:57,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1106209149, now seen corresponding path program 1 times [2020-09-17 01:39:57,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:57,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217116464] [2020-09-17 01:39:57,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:57,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:57,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217116464] [2020-09-17 01:39:57,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:57,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:39:57,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044061818] [2020-09-17 01:39:57,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:39:57,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:57,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:39:57,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:39:57,184 INFO L87 Difference]: Start difference. First operand 171 states and 418 transitions. Second operand 5 states. [2020-09-17 01:39:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:57,281 INFO L93 Difference]: Finished difference Result 205 states and 460 transitions. [2020-09-17 01:39:57,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:39:57,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:39:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:57,285 INFO L225 Difference]: With dead ends: 205 [2020-09-17 01:39:57,285 INFO L226 Difference]: Without dead ends: 201 [2020-09-17 01:39:57,286 INFO L675 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 [2020-09-17 01:39:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-09-17 01:39:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 162. [2020-09-17 01:39:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-17 01:39:57,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 399 transitions. [2020-09-17 01:39:57,307 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 399 transitions. Word has length 9 [2020-09-17 01:39:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:57,307 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 399 transitions. [2020-09-17 01:39:57,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:39:57,308 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 399 transitions. [2020-09-17 01:39:57,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:39:57,309 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:57,309 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:57,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:39:57,310 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:57,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:57,310 INFO L82 PathProgramCache]: Analyzing trace with hash 583411714, now seen corresponding path program 1 times [2020-09-17 01:39:57,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:57,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992354995] [2020-09-17 01:39:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:39:57,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992354995] [2020-09-17 01:39:57,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:57,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:39:57,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139763182] [2020-09-17 01:39:57,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:39:57,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:57,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:39:57,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:39:57,377 INFO L87 Difference]: Start difference. First operand 162 states and 399 transitions. Second operand 5 states. [2020-09-17 01:39:57,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:57,434 INFO L93 Difference]: Finished difference Result 189 states and 423 transitions. [2020-09-17 01:39:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:39:57,434 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 01:39:57,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:57,437 INFO L225 Difference]: With dead ends: 189 [2020-09-17 01:39:57,437 INFO L226 Difference]: Without dead ends: 185 [2020-09-17 01:39:57,437 INFO L675 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 [2020-09-17 01:39:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-09-17 01:39:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 153. [2020-09-17 01:39:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-17 01:39:57,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 367 transitions. [2020-09-17 01:39:57,452 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 367 transitions. Word has length 13 [2020-09-17 01:39:57,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:57,454 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 367 transitions. [2020-09-17 01:39:57,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:39:57,454 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 367 transitions. [2020-09-17 01:39:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 01:39:57,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:57,456 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:57,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 01:39:57,456 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:57,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:57,457 INFO L82 PathProgramCache]: Analyzing trace with hash 903154619, now seen corresponding path program 1 times [2020-09-17 01:39:57,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:57,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620087651] [2020-09-17 01:39:57,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:39:57,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:39:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:39:57,505 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:39:57,513 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:39:57,513 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:39:57,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 01:39:57,514 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 01:39:57,515 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-17 01:39:57,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,525 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,526 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,527 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,528 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,528 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,529 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,530 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,530 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,538 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,538 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,544 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,545 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,545 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,545 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,546 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,547 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,547 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,547 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,547 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,549 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,554 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:39:57,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-17 01:39:57,556 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:39:57,556 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:39:57,556 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:39:57,556 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:39:57,556 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:39:57,556 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:39:57,557 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:39:57,557 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:39:57,559 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 87 transitions, 216 flow [2020-09-17 01:39:57,559 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 87 transitions, 216 flow [2020-09-17 01:39:57,576 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2020-09-17 01:39:57,576 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-17 01:39:57,578 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. [2020-09-17 01:39:57,581 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 87 transitions, 216 flow [2020-09-17 01:39:57,595 INFO L129 PetriNetUnfolder]: 5/105 cut-off events. [2020-09-17 01:39:57,595 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-17 01:39:57,597 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. [2020-09-17 01:39:57,600 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1608 [2020-09-17 01:39:57,600 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:39:59,248 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-09-17 01:39:59,459 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1796 [2020-09-17 01:39:59,459 INFO L214 etLargeBlockEncoding]: Total number of compositions: 73 [2020-09-17 01:39:59,459 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 27 transitions, 96 flow [2020-09-17 01:39:59,488 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 683 states. [2020-09-17 01:39:59,488 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states. [2020-09-17 01:39:59,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:39:59,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:59,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:39:59,489 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:59,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:59,490 INFO L82 PathProgramCache]: Analyzing trace with hash 535749, now seen corresponding path program 1 times [2020-09-17 01:39:59,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:59,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674073701] [2020-09-17 01:39:59,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:59,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674073701] [2020-09-17 01:39:59,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:59,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:39:59,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057314508] [2020-09-17 01:39:59,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:39:59,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:59,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:39:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:39:59,532 INFO L87 Difference]: Start difference. First operand 683 states. Second operand 3 states. [2020-09-17 01:39:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:59,581 INFO L93 Difference]: Finished difference Result 600 states and 1886 transitions. [2020-09-17 01:39:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:39:59,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:39:59,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:59,590 INFO L225 Difference]: With dead ends: 600 [2020-09-17 01:39:59,590 INFO L226 Difference]: Without dead ends: 559 [2020-09-17 01:39:59,591 INFO L675 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 [2020-09-17 01:39:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-17 01:39:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2020-09-17 01:39:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-09-17 01:39:59,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 1737 transitions. [2020-09-17 01:39:59,636 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 1737 transitions. Word has length 3 [2020-09-17 01:39:59,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:59,637 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 1737 transitions. [2020-09-17 01:39:59,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:39:59,637 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 1737 transitions. [2020-09-17 01:39:59,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:39:59,638 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:59,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:59,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 01:39:59,638 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:59,639 INFO L82 PathProgramCache]: Analyzing trace with hash -404806880, now seen corresponding path program 1 times [2020-09-17 01:39:59,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:59,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675058376] [2020-09-17 01:39:59,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:39:59,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675058376] [2020-09-17 01:39:59,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:59,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:39:59,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391393277] [2020-09-17 01:39:59,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:39:59,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:59,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:39:59,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:39:59,701 INFO L87 Difference]: Start difference. First operand 559 states and 1737 transitions. Second operand 5 states. [2020-09-17 01:39:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:59,814 INFO L93 Difference]: Finished difference Result 817 states and 2317 transitions. [2020-09-17 01:39:59,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:39:59,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:39:59,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:59,825 INFO L225 Difference]: With dead ends: 817 [2020-09-17 01:39:59,825 INFO L226 Difference]: Without dead ends: 812 [2020-09-17 01:39:59,825 INFO L675 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 [2020-09-17 01:39:59,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-17 01:39:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 585. [2020-09-17 01:39:59,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-09-17 01:39:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 1832 transitions. [2020-09-17 01:39:59,863 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 1832 transitions. Word has length 9 [2020-09-17 01:39:59,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:59,863 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 1832 transitions. [2020-09-17 01:39:59,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:39:59,863 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 1832 transitions. [2020-09-17 01:39:59,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:39:59,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:39:59,869 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:39:59,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 01:39:59,870 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:39:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:39:59,870 INFO L82 PathProgramCache]: Analyzing trace with hash -669323978, now seen corresponding path program 1 times [2020-09-17 01:39:59,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:39:59,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656177065] [2020-09-17 01:39:59,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:39:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:39:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:39:59,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656177065] [2020-09-17 01:39:59,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:39:59,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:39:59,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545104183] [2020-09-17 01:39:59,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:39:59,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:39:59,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:39:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:39:59,950 INFO L87 Difference]: Start difference. First operand 585 states and 1832 transitions. Second operand 5 states. [2020-09-17 01:40:00,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:00,046 INFO L93 Difference]: Finished difference Result 843 states and 2406 transitions. [2020-09-17 01:40:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:00,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 01:40:00,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:00,054 INFO L225 Difference]: With dead ends: 843 [2020-09-17 01:40:00,054 INFO L226 Difference]: Without dead ends: 836 [2020-09-17 01:40:00,056 INFO L675 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 [2020-09-17 01:40:00,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-17 01:40:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 611. [2020-09-17 01:40:00,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-17 01:40:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1906 transitions. [2020-09-17 01:40:00,088 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1906 transitions. Word has length 13 [2020-09-17 01:40:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:00,088 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 1906 transitions. [2020-09-17 01:40:00,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:00,088 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1906 transitions. [2020-09-17 01:40:00,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:00,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:00,091 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:00,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 01:40:00,091 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:40:00,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:00,092 INFO L82 PathProgramCache]: Analyzing trace with hash -56737855, now seen corresponding path program 1 times [2020-09-17 01:40:00,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:00,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129922560] [2020-09-17 01:40:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:00,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:00,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129922560] [2020-09-17 01:40:00,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709810650] [2020-09-17 01:40:00,227 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 [2020-09-17 01:40:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:00,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:00,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:00,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:00,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:00,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174397720] [2020-09-17 01:40:00,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:00,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:00,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:00,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:00,409 INFO L87 Difference]: Start difference. First operand 611 states and 1906 transitions. Second operand 9 states. [2020-09-17 01:40:00,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:00,600 INFO L93 Difference]: Finished difference Result 1059 states and 2818 transitions. [2020-09-17 01:40:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:00,600 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-09-17 01:40:00,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:00,609 INFO L225 Difference]: With dead ends: 1059 [2020-09-17 01:40:00,609 INFO L226 Difference]: Without dead ends: 1052 [2020-09-17 01:40:00,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:00,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-09-17 01:40:00,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 591. [2020-09-17 01:40:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-17 01:40:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1840 transitions. [2020-09-17 01:40:00,640 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1840 transitions. Word has length 15 [2020-09-17 01:40:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:00,640 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 1840 transitions. [2020-09-17 01:40:00,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1840 transitions. [2020-09-17 01:40:00,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:00,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:00,641 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:00,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-09-17 01:40:00,851 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:40:00,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:00,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1024744543, now seen corresponding path program 2 times [2020-09-17 01:40:00,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:00,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128770725] [2020-09-17 01:40:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:00,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:00,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128770725] [2020-09-17 01:40:00,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:00,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:00,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19140309] [2020-09-17 01:40:00,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:00,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:00,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:00,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:00,924 INFO L87 Difference]: Start difference. First operand 591 states and 1840 transitions. Second operand 7 states. [2020-09-17 01:40:01,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:01,110 INFO L93 Difference]: Finished difference Result 1053 states and 2807 transitions. [2020-09-17 01:40:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:01,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-17 01:40:01,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:01,120 INFO L225 Difference]: With dead ends: 1053 [2020-09-17 01:40:01,121 INFO L226 Difference]: Without dead ends: 1045 [2020-09-17 01:40:01,121 INFO L675 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 [2020-09-17 01:40:01,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2020-09-17 01:40:01,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 536. [2020-09-17 01:40:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-17 01:40:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1688 transitions. [2020-09-17 01:40:01,156 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1688 transitions. Word has length 15 [2020-09-17 01:40:01,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:01,157 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 1688 transitions. [2020-09-17 01:40:01,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:01,157 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1688 transitions. [2020-09-17 01:40:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 01:40:01,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:01,159 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:01,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-17 01:40:01,159 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:40:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:01,160 INFO L82 PathProgramCache]: Analyzing trace with hash 68174732, now seen corresponding path program 1 times [2020-09-17 01:40:01,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:01,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994271276] [2020-09-17 01:40:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:01,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994271276] [2020-09-17 01:40:01,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:01,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:01,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853882535] [2020-09-17 01:40:01,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:01,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:01,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:01,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:01,223 INFO L87 Difference]: Start difference. First operand 536 states and 1688 transitions. Second operand 5 states. [2020-09-17 01:40:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:01,295 INFO L93 Difference]: Finished difference Result 736 states and 2123 transitions. [2020-09-17 01:40:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:01,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-17 01:40:01,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:01,302 INFO L225 Difference]: With dead ends: 736 [2020-09-17 01:40:01,302 INFO L226 Difference]: Without dead ends: 728 [2020-09-17 01:40:01,303 INFO L675 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 [2020-09-17 01:40:01,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-17 01:40:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 549. [2020-09-17 01:40:01,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 549 states. [2020-09-17 01:40:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 1684 transitions. [2020-09-17 01:40:01,329 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 1684 transitions. Word has length 17 [2020-09-17 01:40:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:01,330 INFO L479 AbstractCegarLoop]: Abstraction has 549 states and 1684 transitions. [2020-09-17 01:40:01,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:01,330 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 1684 transitions. [2020-09-17 01:40:01,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:40:01,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:01,332 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:01,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-17 01:40:01,332 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:40:01,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:01,333 INFO L82 PathProgramCache]: Analyzing trace with hash 2109628021, now seen corresponding path program 1 times [2020-09-17 01:40:01,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:01,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089070222] [2020-09-17 01:40:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:40:01,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:40:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:40:01,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:40:01,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:40:01,371 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:40:01,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-17 01:40:01,372 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 01:40:01,373 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-09-17 01:40:01,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,385 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,385 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,386 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,386 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,387 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,388 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,388 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,388 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,388 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,389 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,390 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,399 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,399 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,399 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,401 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,401 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,402 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,402 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,403 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,403 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,403 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,404 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,405 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,405 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,405 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,413 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,413 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,414 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,414 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:01,415 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-17 01:40:01,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:40:01,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:40:01,416 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:40:01,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:40:01,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:40:01,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:40:01,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:40:01,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:40:01,419 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 105 transitions, 274 flow [2020-09-17 01:40:01,419 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 105 transitions, 274 flow [2020-09-17 01:40:01,436 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2020-09-17 01:40:01,437 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-17 01:40:01,438 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. [2020-09-17 01:40:01,442 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 105 transitions, 274 flow [2020-09-17 01:40:01,456 INFO L129 PetriNetUnfolder]: 6/127 cut-off events. [2020-09-17 01:40:01,456 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-17 01:40:01,458 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. [2020-09-17 01:40:01,462 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2192 [2020-09-17 01:40:01,462 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:40:03,469 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-09-17 01:40:03,544 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2240 [2020-09-17 01:40:03,545 INFO L214 etLargeBlockEncoding]: Total number of compositions: 92 [2020-09-17 01:40:03,545 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 33 transitions, 130 flow [2020-09-17 01:40:03,658 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2060 states. [2020-09-17 01:40:03,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states. [2020-09-17 01:40:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:40:03,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:03,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:40:03,659 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:03,659 INFO L82 PathProgramCache]: Analyzing trace with hash 753552, now seen corresponding path program 1 times [2020-09-17 01:40:03,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:03,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848706001] [2020-09-17 01:40:03,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:03,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848706001] [2020-09-17 01:40:03,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:03,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:40:03,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755469555] [2020-09-17 01:40:03,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:40:03,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:03,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:40:03,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:40:03,685 INFO L87 Difference]: Start difference. First operand 2060 states. Second operand 3 states. [2020-09-17 01:40:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:03,747 INFO L93 Difference]: Finished difference Result 1889 states and 7217 transitions. [2020-09-17 01:40:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:40:03,748 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:40:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:03,768 INFO L225 Difference]: With dead ends: 1889 [2020-09-17 01:40:03,769 INFO L226 Difference]: Without dead ends: 1767 [2020-09-17 01:40:03,769 INFO L675 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 [2020-09-17 01:40:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2020-09-17 01:40:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2020-09-17 01:40:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2020-09-17 01:40:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 6690 transitions. [2020-09-17 01:40:03,874 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 6690 transitions. Word has length 3 [2020-09-17 01:40:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:03,875 INFO L479 AbstractCegarLoop]: Abstraction has 1767 states and 6690 transitions. [2020-09-17 01:40:03,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:40:03,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 6690 transitions. [2020-09-17 01:40:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:40:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:03,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:03,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-17 01:40:03,876 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash -260829075, now seen corresponding path program 1 times [2020-09-17 01:40:03,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:03,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787916538] [2020-09-17 01:40:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:03,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787916538] [2020-09-17 01:40:03,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:03,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:03,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652147070] [2020-09-17 01:40:03,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:03,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:03,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:03,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:03,936 INFO L87 Difference]: Start difference. First operand 1767 states and 6690 transitions. Second operand 5 states. [2020-09-17 01:40:04,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:04,027 INFO L93 Difference]: Finished difference Result 2905 states and 10138 transitions. [2020-09-17 01:40:04,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:04,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:40:04,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:04,054 INFO L225 Difference]: With dead ends: 2905 [2020-09-17 01:40:04,054 INFO L226 Difference]: Without dead ends: 2899 [2020-09-17 01:40:04,056 INFO L675 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 [2020-09-17 01:40:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-09-17 01:40:04,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 1966. [2020-09-17 01:40:04,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1966 states. [2020-09-17 01:40:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 7503 transitions. [2020-09-17 01:40:04,172 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 7503 transitions. Word has length 9 [2020-09-17 01:40:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:04,172 INFO L479 AbstractCegarLoop]: Abstraction has 1966 states and 7503 transitions. [2020-09-17 01:40:04,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 7503 transitions. [2020-09-17 01:40:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:40:04,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:04,173 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:04,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-17 01:40:04,173 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1408743431, now seen corresponding path program 1 times [2020-09-17 01:40:04,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:04,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309232593] [2020-09-17 01:40:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:04,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:04,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309232593] [2020-09-17 01:40:04,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:04,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:04,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42815528] [2020-09-17 01:40:04,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:04,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:04,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:04,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:04,239 INFO L87 Difference]: Start difference. First operand 1966 states and 7503 transitions. Second operand 5 states. [2020-09-17 01:40:04,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:04,352 INFO L93 Difference]: Finished difference Result 3204 states and 11312 transitions. [2020-09-17 01:40:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:04,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 01:40:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:04,386 INFO L225 Difference]: With dead ends: 3204 [2020-09-17 01:40:04,386 INFO L226 Difference]: Without dead ends: 3194 [2020-09-17 01:40:04,387 INFO L675 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 [2020-09-17 01:40:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2020-09-17 01:40:04,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2200. [2020-09-17 01:40:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2200 states. [2020-09-17 01:40:04,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2200 states to 2200 states and 8453 transitions. [2020-09-17 01:40:04,555 INFO L78 Accepts]: Start accepts. Automaton has 2200 states and 8453 transitions. Word has length 13 [2020-09-17 01:40:04,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:04,556 INFO L479 AbstractCegarLoop]: Abstraction has 2200 states and 8453 transitions. [2020-09-17 01:40:04,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:04,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2200 states and 8453 transitions. [2020-09-17 01:40:04,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:04,557 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:04,557 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:04,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-17 01:40:04,558 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:04,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1555768808, now seen corresponding path program 1 times [2020-09-17 01:40:04,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:04,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894199998] [2020-09-17 01:40:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:04,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:04,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894199998] [2020-09-17 01:40:04,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792819482] [2020-09-17 01:40:04,623 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 [2020-09-17 01:40:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:04,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:04,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:04,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:04,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:04,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:04,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78944457] [2020-09-17 01:40:04,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:04,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:04,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:04,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:04,728 INFO L87 Difference]: Start difference. First operand 2200 states and 8453 transitions. Second operand 9 states. [2020-09-17 01:40:04,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:04,974 INFO L93 Difference]: Finished difference Result 4556 states and 14911 transitions. [2020-09-17 01:40:04,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:04,974 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-09-17 01:40:04,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:05,019 INFO L225 Difference]: With dead ends: 4556 [2020-09-17 01:40:05,020 INFO L226 Difference]: Without dead ends: 4546 [2020-09-17 01:40:05,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-09-17 01:40:05,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 2157. [2020-09-17 01:40:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2157 states. [2020-09-17 01:40:05,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 8278 transitions. [2020-09-17 01:40:05,153 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 8278 transitions. Word has length 15 [2020-09-17 01:40:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:05,154 INFO L479 AbstractCegarLoop]: Abstraction has 2157 states and 8278 transitions. [2020-09-17 01:40:05,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 8278 transitions. [2020-09-17 01:40:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:05,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:05,155 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:05,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-09-17 01:40:05,369 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:05,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:05,370 INFO L82 PathProgramCache]: Analyzing trace with hash -887756896, now seen corresponding path program 2 times [2020-09-17 01:40:05,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:05,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833138643] [2020-09-17 01:40:05,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:05,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833138643] [2020-09-17 01:40:05,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:05,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:05,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983147164] [2020-09-17 01:40:05,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:05,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:05,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:05,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:05,448 INFO L87 Difference]: Start difference. First operand 2157 states and 8278 transitions. Second operand 7 states. [2020-09-17 01:40:05,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:05,675 INFO L93 Difference]: Finished difference Result 4612 states and 15111 transitions. [2020-09-17 01:40:05,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:05,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-17 01:40:05,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:05,695 INFO L225 Difference]: With dead ends: 4612 [2020-09-17 01:40:05,695 INFO L226 Difference]: Without dead ends: 4601 [2020-09-17 01:40:05,696 INFO L675 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 [2020-09-17 01:40:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2020-09-17 01:40:05,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 2035. [2020-09-17 01:40:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2035 states. [2020-09-17 01:40:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 7845 transitions. [2020-09-17 01:40:05,883 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 7845 transitions. Word has length 15 [2020-09-17 01:40:05,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:05,883 INFO L479 AbstractCegarLoop]: Abstraction has 2035 states and 7845 transitions. [2020-09-17 01:40:05,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:05,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 7845 transitions. [2020-09-17 01:40:05,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 01:40:05,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:05,885 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:05,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-17 01:40:05,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:05,886 INFO L82 PathProgramCache]: Analyzing trace with hash 695111130, now seen corresponding path program 1 times [2020-09-17 01:40:05,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:05,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554517967] [2020-09-17 01:40:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:05,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:05,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554517967] [2020-09-17 01:40:05,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:05,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:05,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510015219] [2020-09-17 01:40:05,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:05,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:05,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:05,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:05,982 INFO L87 Difference]: Start difference. First operand 2035 states and 7845 transitions. Second operand 5 states. [2020-09-17 01:40:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:06,077 INFO L93 Difference]: Finished difference Result 3265 states and 11681 transitions. [2020-09-17 01:40:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:06,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-17 01:40:06,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:06,092 INFO L225 Difference]: With dead ends: 3265 [2020-09-17 01:40:06,092 INFO L226 Difference]: Without dead ends: 3250 [2020-09-17 01:40:06,093 INFO L675 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 [2020-09-17 01:40:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2020-09-17 01:40:06,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2281. [2020-09-17 01:40:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2281 states. [2020-09-17 01:40:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 8755 transitions. [2020-09-17 01:40:06,196 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 8755 transitions. Word has length 17 [2020-09-17 01:40:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:06,196 INFO L479 AbstractCegarLoop]: Abstraction has 2281 states and 8755 transitions. [2020-09-17 01:40:06,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 8755 transitions. [2020-09-17 01:40:06,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:06,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:06,198 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:06,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-17 01:40:06,198 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1754455113, now seen corresponding path program 1 times [2020-09-17 01:40:06,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:06,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000769276] [2020-09-17 01:40:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:06,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000769276] [2020-09-17 01:40:06,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031841368] [2020-09-17 01:40:06,283 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 [2020-09-17 01:40:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:06,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:06,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:06,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:06,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:06,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290358931] [2020-09-17 01:40:06,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:06,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:06,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:06,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:06,408 INFO L87 Difference]: Start difference. First operand 2281 states and 8755 transitions. Second operand 9 states. [2020-09-17 01:40:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:06,652 INFO L93 Difference]: Finished difference Result 4825 states and 15986 transitions. [2020-09-17 01:40:06,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:06,652 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-17 01:40:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:06,671 INFO L225 Difference]: With dead ends: 4825 [2020-09-17 01:40:06,671 INFO L226 Difference]: Without dead ends: 4813 [2020-09-17 01:40:06,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4813 states. [2020-09-17 01:40:06,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4813 to 2305. [2020-09-17 01:40:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2305 states. [2020-09-17 01:40:06,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 8815 transitions. [2020-09-17 01:40:06,799 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 8815 transitions. Word has length 19 [2020-09-17 01:40:06,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:06,799 INFO L479 AbstractCegarLoop]: Abstraction has 2305 states and 8815 transitions. [2020-09-17 01:40:06,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:06,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 8815 transitions. [2020-09-17 01:40:06,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:06,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:06,801 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:07,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:07,015 INFO L427 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:07,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:07,016 INFO L82 PathProgramCache]: Analyzing trace with hash -131464925, now seen corresponding path program 1 times [2020-09-17 01:40:07,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:07,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37378436] [2020-09-17 01:40:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:07,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37378436] [2020-09-17 01:40:07,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187265481] [2020-09-17 01:40:07,081 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 [2020-09-17 01:40:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:07,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:07,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:07,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:07,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:07,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57774572] [2020-09-17 01:40:07,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:07,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:07,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:07,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:07,184 INFO L87 Difference]: Start difference. First operand 2305 states and 8815 transitions. Second operand 9 states. [2020-09-17 01:40:07,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:07,518 INFO L93 Difference]: Finished difference Result 4942 states and 16410 transitions. [2020-09-17 01:40:07,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:07,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-17 01:40:07,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:07,535 INFO L225 Difference]: With dead ends: 4942 [2020-09-17 01:40:07,535 INFO L226 Difference]: Without dead ends: 4925 [2020-09-17 01:40:07,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2020-09-17 01:40:07,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 2299. [2020-09-17 01:40:07,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-09-17 01:40:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 8782 transitions. [2020-09-17 01:40:07,664 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 8782 transitions. Word has length 19 [2020-09-17 01:40:07,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:07,665 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 8782 transitions. [2020-09-17 01:40:07,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:07,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 8782 transitions. [2020-09-17 01:40:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:07,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:07,667 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:07,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:07,880 INFO L427 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:07,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2013120191, now seen corresponding path program 2 times [2020-09-17 01:40:07,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:07,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161170904] [2020-09-17 01:40:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:07,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161170904] [2020-09-17 01:40:07,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:07,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:07,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656856280] [2020-09-17 01:40:07,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:07,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:07,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:07,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:07,950 INFO L87 Difference]: Start difference. First operand 2299 states and 8782 transitions. Second operand 7 states. [2020-09-17 01:40:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:08,210 INFO L93 Difference]: Finished difference Result 4934 states and 16393 transitions. [2020-09-17 01:40:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:08,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:40:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:08,229 INFO L225 Difference]: With dead ends: 4934 [2020-09-17 01:40:08,230 INFO L226 Difference]: Without dead ends: 4917 [2020-09-17 01:40:08,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:40:08,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2020-09-17 01:40:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 2216. [2020-09-17 01:40:08,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2216 states. [2020-09-17 01:40:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2216 states to 2216 states and 8477 transitions. [2020-09-17 01:40:08,334 INFO L78 Accepts]: Start accepts. Automaton has 2216 states and 8477 transitions. Word has length 19 [2020-09-17 01:40:08,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:08,334 INFO L479 AbstractCegarLoop]: Abstraction has 2216 states and 8477 transitions. [2020-09-17 01:40:08,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:08,334 INFO L276 IsEmpty]: Start isEmpty. Operand 2216 states and 8477 transitions. [2020-09-17 01:40:08,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:08,336 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:08,336 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:08,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-17 01:40:08,336 INFO L427 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:08,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:08,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2013113743, now seen corresponding path program 2 times [2020-09-17 01:40:08,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:08,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187649114] [2020-09-17 01:40:08,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:08,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187649114] [2020-09-17 01:40:08,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:08,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:08,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201214294] [2020-09-17 01:40:08,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:08,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:08,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:08,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:08,410 INFO L87 Difference]: Start difference. First operand 2216 states and 8477 transitions. Second operand 7 states. [2020-09-17 01:40:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:08,626 INFO L93 Difference]: Finished difference Result 4774 states and 15828 transitions. [2020-09-17 01:40:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:08,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:40:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:08,649 INFO L225 Difference]: With dead ends: 4774 [2020-09-17 01:40:08,649 INFO L226 Difference]: Without dead ends: 4757 [2020-09-17 01:40:08,649 INFO L675 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 [2020-09-17 01:40:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2020-09-17 01:40:08,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 2150. [2020-09-17 01:40:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2150 states. [2020-09-17 01:40:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 8243 transitions. [2020-09-17 01:40:08,755 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 8243 transitions. Word has length 19 [2020-09-17 01:40:08,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:08,755 INFO L479 AbstractCegarLoop]: Abstraction has 2150 states and 8243 transitions. [2020-09-17 01:40:08,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 8243 transitions. [2020-09-17 01:40:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:08,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:08,757 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:08,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-17 01:40:08,758 INFO L427 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash -9146414, now seen corresponding path program 1 times [2020-09-17 01:40:08,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:08,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605308787] [2020-09-17 01:40:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:08,954 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:08,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605308787] [2020-09-17 01:40:08,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621456123] [2020-09-17 01:40:08,955 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 [2020-09-17 01:40:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:09,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:09,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:09,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:09,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:09,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541503531] [2020-09-17 01:40:09,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:09,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:09,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:09,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:09,056 INFO L87 Difference]: Start difference. First operand 2150 states and 8243 transitions. Second operand 11 states. [2020-09-17 01:40:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:09,740 INFO L93 Difference]: Finished difference Result 6025 states and 18746 transitions. [2020-09-17 01:40:09,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:09,741 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:09,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:09,754 INFO L225 Difference]: With dead ends: 6025 [2020-09-17 01:40:09,754 INFO L226 Difference]: Without dead ends: 6017 [2020-09-17 01:40:09,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2020-09-17 01:40:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 2117. [2020-09-17 01:40:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2020-09-17 01:40:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 8106 transitions. [2020-09-17 01:40:09,860 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 8106 transitions. Word has length 21 [2020-09-17 01:40:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:09,861 INFO L479 AbstractCegarLoop]: Abstraction has 2117 states and 8106 transitions. [2020-09-17 01:40:09,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 8106 transitions. [2020-09-17 01:40:09,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:09,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:09,863 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:10,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-09-17 01:40:10,077 INFO L427 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1890795232, now seen corresponding path program 2 times [2020-09-17 01:40:10,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:10,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488457839] [2020-09-17 01:40:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:10,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:10,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488457839] [2020-09-17 01:40:10,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792145178] [2020-09-17 01:40:10,159 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 [2020-09-17 01:40:10,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:40:10,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:10,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:10,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:10,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:10,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:10,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180229294] [2020-09-17 01:40:10,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:10,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:10,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:10,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:10,275 INFO L87 Difference]: Start difference. First operand 2117 states and 8106 transitions. Second operand 11 states. [2020-09-17 01:40:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:11,008 INFO L93 Difference]: Finished difference Result 5914 states and 18384 transitions. [2020-09-17 01:40:11,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:11,009 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:11,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:11,018 INFO L225 Difference]: With dead ends: 5914 [2020-09-17 01:40:11,018 INFO L226 Difference]: Without dead ends: 5903 [2020-09-17 01:40:11,019 INFO L675 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 [2020-09-17 01:40:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2020-09-17 01:40:11,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 2085. [2020-09-17 01:40:11,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2085 states. [2020-09-17 01:40:11,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 7975 transitions. [2020-09-17 01:40:11,197 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 7975 transitions. Word has length 21 [2020-09-17 01:40:11,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:11,198 INFO L479 AbstractCegarLoop]: Abstraction has 2085 states and 7975 transitions. [2020-09-17 01:40:11,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:11,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 7975 transitions. [2020-09-17 01:40:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:11,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:11,200 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:11,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:11,414 INFO L427 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:11,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:11,415 INFO L82 PathProgramCache]: Analyzing trace with hash 180724060, now seen corresponding path program 3 times [2020-09-17 01:40:11,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:11,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903113433] [2020-09-17 01:40:11,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:11,500 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:11,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903113433] [2020-09-17 01:40:11,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270689259] [2020-09-17 01:40:11,501 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 [2020-09-17 01:40:11,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:40:11,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:11,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:11,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:11,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:11,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:11,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651618578] [2020-09-17 01:40:11,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:11,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:11,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:11,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:11,614 INFO L87 Difference]: Start difference. First operand 2085 states and 7975 transitions. Second operand 11 states. [2020-09-17 01:40:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:12,198 INFO L93 Difference]: Finished difference Result 5907 states and 18375 transitions. [2020-09-17 01:40:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:12,199 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:12,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:12,208 INFO L225 Difference]: With dead ends: 5907 [2020-09-17 01:40:12,208 INFO L226 Difference]: Without dead ends: 5899 [2020-09-17 01:40:12,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5899 states. [2020-09-17 01:40:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5899 to 2008. [2020-09-17 01:40:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2008 states. [2020-09-17 01:40:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 7698 transitions. [2020-09-17 01:40:12,301 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 7698 transitions. Word has length 21 [2020-09-17 01:40:12,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:12,301 INFO L479 AbstractCegarLoop]: Abstraction has 2008 states and 7698 transitions. [2020-09-17 01:40:12,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:12,301 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 7698 transitions. [2020-09-17 01:40:12,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:12,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:12,303 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:12,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-09-17 01:40:12,517 INFO L427 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:12,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:12,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1783759286, now seen corresponding path program 4 times [2020-09-17 01:40:12,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:12,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199204821] [2020-09-17 01:40:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:12,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199204821] [2020-09-17 01:40:12,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355152692] [2020-09-17 01:40:12,617 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 [2020-09-17 01:40:12,707 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:40:12,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:12,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:12,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-17 01:40:12,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:12,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:12,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388209793] [2020-09-17 01:40:12,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:12,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:12,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:12,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:12,737 INFO L87 Difference]: Start difference. First operand 2008 states and 7698 transitions. Second operand 11 states. [2020-09-17 01:40:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:13,373 INFO L93 Difference]: Finished difference Result 5835 states and 18155 transitions. [2020-09-17 01:40:13,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:13,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:13,387 INFO L225 Difference]: With dead ends: 5835 [2020-09-17 01:40:13,387 INFO L226 Difference]: Without dead ends: 5824 [2020-09-17 01:40:13,388 INFO L675 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 [2020-09-17 01:40:13,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2020-09-17 01:40:13,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 1976. [2020-09-17 01:40:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1976 states. [2020-09-17 01:40:13,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 7567 transitions. [2020-09-17 01:40:13,541 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 7567 transitions. Word has length 21 [2020-09-17 01:40:13,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:13,541 INFO L479 AbstractCegarLoop]: Abstraction has 1976 states and 7567 transitions. [2020-09-17 01:40:13,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:13,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 7567 transitions. [2020-09-17 01:40:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:13,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:13,548 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:13,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-09-17 01:40:13,763 INFO L427 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:13,764 INFO L82 PathProgramCache]: Analyzing trace with hash -964809789, now seen corresponding path program 1 times [2020-09-17 01:40:13,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:13,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122053956] [2020-09-17 01:40:13,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:40:13,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122053956] [2020-09-17 01:40:13,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:13,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:13,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406790557] [2020-09-17 01:40:13,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:13,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:13,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:13,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:13,824 INFO L87 Difference]: Start difference. First operand 1976 states and 7567 transitions. Second operand 5 states. [2020-09-17 01:40:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:13,909 INFO L93 Difference]: Finished difference Result 3016 states and 10840 transitions. [2020-09-17 01:40:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:13,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-17 01:40:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:13,917 INFO L225 Difference]: With dead ends: 3016 [2020-09-17 01:40:13,918 INFO L226 Difference]: Without dead ends: 3000 [2020-09-17 01:40:13,918 INFO L675 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 [2020-09-17 01:40:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2020-09-17 01:40:13,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2183. [2020-09-17 01:40:13,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-09-17 01:40:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 8210 transitions. [2020-09-17 01:40:13,987 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 8210 transitions. Word has length 21 [2020-09-17 01:40:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:13,988 INFO L479 AbstractCegarLoop]: Abstraction has 2183 states and 8210 transitions. [2020-09-17 01:40:13,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 8210 transitions. [2020-09-17 01:40:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:13,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:13,990 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:13,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-17 01:40:13,990 INFO L427 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:13,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:13,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1873231848, now seen corresponding path program 5 times [2020-09-17 01:40:13,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:13,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068042575] [2020-09-17 01:40:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:14,083 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:14,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068042575] [2020-09-17 01:40:14,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:14,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:40:14,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108168920] [2020-09-17 01:40:14,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:14,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:14,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:14,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:14,085 INFO L87 Difference]: Start difference. First operand 2183 states and 8210 transitions. Second operand 9 states. [2020-09-17 01:40:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:14,649 INFO L93 Difference]: Finished difference Result 6150 states and 19247 transitions. [2020-09-17 01:40:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:14,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:40:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:14,659 INFO L225 Difference]: With dead ends: 6150 [2020-09-17 01:40:14,659 INFO L226 Difference]: Without dead ends: 6139 [2020-09-17 01:40:14,660 INFO L675 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 [2020-09-17 01:40:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2020-09-17 01:40:14,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 2096. [2020-09-17 01:40:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2020-09-17 01:40:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 7876 transitions. [2020-09-17 01:40:14,737 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 7876 transitions. Word has length 21 [2020-09-17 01:40:14,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:14,737 INFO L479 AbstractCegarLoop]: Abstraction has 2096 states and 7876 transitions. [2020-09-17 01:40:14,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 7876 transitions. [2020-09-17 01:40:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:14,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:14,739 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:14,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-17 01:40:14,739 INFO L427 AbstractCegarLoop]: === Iteration 17 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:14,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1867041768, now seen corresponding path program 6 times [2020-09-17 01:40:14,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:14,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358725003] [2020-09-17 01:40:14,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:14,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358725003] [2020-09-17 01:40:14,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:14,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:40:14,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834999323] [2020-09-17 01:40:14,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:14,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:14,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:14,822 INFO L87 Difference]: Start difference. First operand 2096 states and 7876 transitions. Second operand 9 states. [2020-09-17 01:40:15,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:15,382 INFO L93 Difference]: Finished difference Result 6017 states and 18791 transitions. [2020-09-17 01:40:15,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:15,382 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:40:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:15,393 INFO L225 Difference]: With dead ends: 6017 [2020-09-17 01:40:15,393 INFO L226 Difference]: Without dead ends: 6002 [2020-09-17 01:40:15,394 INFO L675 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 [2020-09-17 01:40:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6002 states. [2020-09-17 01:40:15,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6002 to 1965. [2020-09-17 01:40:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2020-09-17 01:40:15,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 7429 transitions. [2020-09-17 01:40:15,478 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 7429 transitions. Word has length 21 [2020-09-17 01:40:15,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:15,479 INFO L479 AbstractCegarLoop]: Abstraction has 1965 states and 7429 transitions. [2020-09-17 01:40:15,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:15,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 7429 transitions. [2020-09-17 01:40:15,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 01:40:15,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:15,481 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:15,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-17 01:40:15,481 INFO L427 AbstractCegarLoop]: === Iteration 18 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-17 01:40:15,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:15,481 INFO L82 PathProgramCache]: Analyzing trace with hash 150840888, now seen corresponding path program 1 times [2020-09-17 01:40:15,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:15,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122980128] [2020-09-17 01:40:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:40:15,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:40:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:40:15,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:40:15,583 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:40:15,584 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:40:15,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-17 01:40:15,585 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 01:40:15,585 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-09-17 01:40:15,598 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,598 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,598 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,599 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,600 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,601 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,602 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,603 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,615 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,615 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,615 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,621 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,621 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,621 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,622 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,623 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,623 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,623 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,623 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,625 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,625 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,625 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,625 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,626 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,627 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,627 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,627 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,628 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,629 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,629 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,629 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,629 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,630 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,630 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,632 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,633 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,633 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,633 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,634 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,634 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,635 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,635 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,636 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,636 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:40:15,638 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-09-17 01:40:15,638 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:40:15,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:40:15,639 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:40:15,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:40:15,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:40:15,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:40:15,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:40:15,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:40:15,643 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 123 transitions, 336 flow [2020-09-17 01:40:15,643 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 123 transitions, 336 flow [2020-09-17 01:40:15,666 INFO L129 PetriNetUnfolder]: 7/149 cut-off events. [2020-09-17 01:40:15,666 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-09-17 01:40:15,668 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. [2020-09-17 01:40:15,673 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 123 transitions, 336 flow [2020-09-17 01:40:15,690 INFO L129 PetriNetUnfolder]: 7/149 cut-off events. [2020-09-17 01:40:15,690 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-09-17 01:40:15,692 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. [2020-09-17 01:40:15,697 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2860 [2020-09-17 01:40:15,697 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:40:17,777 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-09-17 01:40:17,855 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3096 [2020-09-17 01:40:17,855 INFO L214 etLargeBlockEncoding]: Total number of compositions: 115 [2020-09-17 01:40:17,856 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 39 transitions, 168 flow [2020-09-17 01:40:18,300 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6191 states. [2020-09-17 01:40:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 6191 states. [2020-09-17 01:40:18,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:40:18,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:18,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:40:18,301 INFO L427 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]=== [2020-09-17 01:40:18,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:18,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1011964, now seen corresponding path program 1 times [2020-09-17 01:40:18,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:18,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649383230] [2020-09-17 01:40:18,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:18,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:18,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649383230] [2020-09-17 01:40:18,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:18,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:40:18,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278821303] [2020-09-17 01:40:18,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:40:18,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:40:18,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:40:18,336 INFO L87 Difference]: Start difference. First operand 6191 states. Second operand 3 states. [2020-09-17 01:40:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:18,407 INFO L93 Difference]: Finished difference Result 5844 states and 26316 transitions. [2020-09-17 01:40:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:40:18,408 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:40:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:18,428 INFO L225 Difference]: With dead ends: 5844 [2020-09-17 01:40:18,428 INFO L226 Difference]: Without dead ends: 5479 [2020-09-17 01:40:18,429 INFO L675 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 [2020-09-17 01:40:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5479 states. [2020-09-17 01:40:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5479 to 5479. [2020-09-17 01:40:18,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5479 states. [2020-09-17 01:40:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 24493 transitions. [2020-09-17 01:40:18,609 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 24493 transitions. Word has length 3 [2020-09-17 01:40:18,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:18,610 INFO L479 AbstractCegarLoop]: Abstraction has 5479 states and 24493 transitions. [2020-09-17 01:40:18,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:40:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 24493 transitions. [2020-09-17 01:40:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:40:18,610 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:18,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:18,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-17 01:40:18,610 INFO L427 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]=== [2020-09-17 01:40:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1084774388, now seen corresponding path program 1 times [2020-09-17 01:40:18,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:18,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872422982] [2020-09-17 01:40:18,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:18,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872422982] [2020-09-17 01:40:18,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:18,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:18,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751242484] [2020-09-17 01:40:18,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:18,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:18,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:18,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:18,656 INFO L87 Difference]: Start difference. First operand 5479 states and 24493 transitions. Second operand 5 states. [2020-09-17 01:40:18,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:18,796 INFO L93 Difference]: Finished difference Result 9673 states and 40333 transitions. [2020-09-17 01:40:18,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:18,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:40:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:18,833 INFO L225 Difference]: With dead ends: 9673 [2020-09-17 01:40:18,833 INFO L226 Difference]: Without dead ends: 9666 [2020-09-17 01:40:18,833 INFO L675 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 [2020-09-17 01:40:18,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2020-09-17 01:40:19,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 6331. [2020-09-17 01:40:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6331 states. [2020-09-17 01:40:19,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 28544 transitions. [2020-09-17 01:40:19,160 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 28544 transitions. Word has length 9 [2020-09-17 01:40:19,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:19,161 INFO L479 AbstractCegarLoop]: Abstraction has 6331 states and 28544 transitions. [2020-09-17 01:40:19,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 28544 transitions. [2020-09-17 01:40:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:40:19,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:19,161 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:19,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-17 01:40:19,162 INFO L427 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]=== [2020-09-17 01:40:19,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:19,162 INFO L82 PathProgramCache]: Analyzing trace with hash 2112403116, now seen corresponding path program 1 times [2020-09-17 01:40:19,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:19,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808966232] [2020-09-17 01:40:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:19,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808966232] [2020-09-17 01:40:19,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:19,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:19,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661688473] [2020-09-17 01:40:19,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:19,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:19,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:19,210 INFO L87 Difference]: Start difference. First operand 6331 states and 28544 transitions. Second operand 5 states. [2020-09-17 01:40:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:19,353 INFO L93 Difference]: Finished difference Result 11081 states and 46826 transitions. [2020-09-17 01:40:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:19,354 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 01:40:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:19,384 INFO L225 Difference]: With dead ends: 11081 [2020-09-17 01:40:19,385 INFO L226 Difference]: Without dead ends: 11068 [2020-09-17 01:40:19,385 INFO L675 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 [2020-09-17 01:40:19,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2020-09-17 01:40:20,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 7391. [2020-09-17 01:40:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7391 states. [2020-09-17 01:40:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 33694 transitions. [2020-09-17 01:40:20,330 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 33694 transitions. Word has length 13 [2020-09-17 01:40:20,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:20,331 INFO L479 AbstractCegarLoop]: Abstraction has 7391 states and 33694 transitions. [2020-09-17 01:40:20,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 33694 transitions. [2020-09-17 01:40:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:20,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:20,331 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:20,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-09-17 01:40:20,332 INFO L427 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]=== [2020-09-17 01:40:20,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:20,332 INFO L82 PathProgramCache]: Analyzing trace with hash -28983895, now seen corresponding path program 1 times [2020-09-17 01:40:20,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:20,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684846996] [2020-09-17 01:40:20,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:20,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684846996] [2020-09-17 01:40:20,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220522618] [2020-09-17 01:40:20,387 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 [2020-09-17 01:40:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:20,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:20,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:20,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:20,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:20,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49446021] [2020-09-17 01:40:20,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:20,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:20,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:20,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:20,506 INFO L87 Difference]: Start difference. First operand 7391 states and 33694 transitions. Second operand 9 states. [2020-09-17 01:40:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:20,852 INFO L93 Difference]: Finished difference Result 16749 states and 66010 transitions. [2020-09-17 01:40:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:20,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-09-17 01:40:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:20,905 INFO L225 Difference]: With dead ends: 16749 [2020-09-17 01:40:20,905 INFO L226 Difference]: Without dead ends: 16736 [2020-09-17 01:40:20,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2020-09-17 01:40:21,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 7303. [2020-09-17 01:40:21,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2020-09-17 01:40:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 33260 transitions. [2020-09-17 01:40:21,234 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 33260 transitions. Word has length 15 [2020-09-17 01:40:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:21,234 INFO L479 AbstractCegarLoop]: Abstraction has 7303 states and 33260 transitions. [2020-09-17 01:40:21,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 33260 transitions. [2020-09-17 01:40:21,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:40:21,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:21,235 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:21,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:21,439 INFO L427 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]=== [2020-09-17 01:40:21,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:21,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1500121559, now seen corresponding path program 2 times [2020-09-17 01:40:21,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:21,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537410100] [2020-09-17 01:40:21,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:21,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537410100] [2020-09-17 01:40:21,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:21,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:21,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651131478] [2020-09-17 01:40:21,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:21,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:21,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:21,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:21,498 INFO L87 Difference]: Start difference. First operand 7303 states and 33260 transitions. Second operand 7 states. [2020-09-17 01:40:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:21,817 INFO L93 Difference]: Finished difference Result 17085 states and 67393 transitions. [2020-09-17 01:40:21,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:21,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-17 01:40:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:22,081 INFO L225 Difference]: With dead ends: 17085 [2020-09-17 01:40:22,081 INFO L226 Difference]: Without dead ends: 17071 [2020-09-17 01:40:22,082 INFO L675 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 [2020-09-17 01:40:22,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17071 states. [2020-09-17 01:40:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17071 to 7048. [2020-09-17 01:40:22,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7048 states. [2020-09-17 01:40:22,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7048 states to 7048 states and 32136 transitions. [2020-09-17 01:40:22,367 INFO L78 Accepts]: Start accepts. Automaton has 7048 states and 32136 transitions. Word has length 15 [2020-09-17 01:40:22,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:22,367 INFO L479 AbstractCegarLoop]: Abstraction has 7048 states and 32136 transitions. [2020-09-17 01:40:22,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:22,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7048 states and 32136 transitions. [2020-09-17 01:40:22,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 01:40:22,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:22,368 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:22,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-09-17 01:40:22,369 INFO L427 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]=== [2020-09-17 01:40:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:22,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1891696605, now seen corresponding path program 1 times [2020-09-17 01:40:22,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:22,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110292344] [2020-09-17 01:40:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:22,415 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110292344] [2020-09-17 01:40:22,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:22,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:22,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036599902] [2020-09-17 01:40:22,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:22,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:22,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:22,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:22,417 INFO L87 Difference]: Start difference. First operand 7048 states and 32136 transitions. Second operand 5 states. [2020-09-17 01:40:22,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:22,557 INFO L93 Difference]: Finished difference Result 12234 states and 52488 transitions. [2020-09-17 01:40:22,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:22,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-17 01:40:22,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:22,589 INFO L225 Difference]: With dead ends: 12234 [2020-09-17 01:40:22,590 INFO L226 Difference]: Without dead ends: 12212 [2020-09-17 01:40:22,590 INFO L675 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 [2020-09-17 01:40:22,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12212 states. [2020-09-17 01:40:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12212 to 8342. [2020-09-17 01:40:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8342 states. [2020-09-17 01:40:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8342 states to 8342 states and 38278 transitions. [2020-09-17 01:40:22,845 INFO L78 Accepts]: Start accepts. Automaton has 8342 states and 38278 transitions. Word has length 17 [2020-09-17 01:40:22,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:22,846 INFO L479 AbstractCegarLoop]: Abstraction has 8342 states and 38278 transitions. [2020-09-17 01:40:22,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 8342 states and 38278 transitions. [2020-09-17 01:40:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:22,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:22,847 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:22,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-09-17 01:40:22,848 INFO L427 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]=== [2020-09-17 01:40:22,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:22,848 INFO L82 PathProgramCache]: Analyzing trace with hash -74039136, now seen corresponding path program 1 times [2020-09-17 01:40:22,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:22,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921217662] [2020-09-17 01:40:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:22,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921217662] [2020-09-17 01:40:22,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285680001] [2020-09-17 01:40:22,909 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 [2020-09-17 01:40:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:22,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:22,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:23,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:23,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:23,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828751582] [2020-09-17 01:40:23,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:23,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:23,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:23,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:23,020 INFO L87 Difference]: Start difference. First operand 8342 states and 38278 transitions. Second operand 9 states. [2020-09-17 01:40:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:23,348 INFO L93 Difference]: Finished difference Result 19016 states and 76191 transitions. [2020-09-17 01:40:23,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:23,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-17 01:40:23,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:23,408 INFO L225 Difference]: With dead ends: 19016 [2020-09-17 01:40:23,409 INFO L226 Difference]: Without dead ends: 18998 [2020-09-17 01:40:23,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18998 states. [2020-09-17 01:40:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18998 to 8452. [2020-09-17 01:40:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8452 states. [2020-09-17 01:40:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8452 states to 8452 states and 38704 transitions. [2020-09-17 01:40:23,876 INFO L78 Accepts]: Start accepts. Automaton has 8452 states and 38704 transitions. Word has length 19 [2020-09-17 01:40:23,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:23,876 INFO L479 AbstractCegarLoop]: Abstraction has 8452 states and 38704 transitions. [2020-09-17 01:40:23,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:23,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8452 states and 38704 transitions. [2020-09-17 01:40:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:23,877 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:23,878 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:24,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-09-17 01:40:24,079 INFO L427 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]=== [2020-09-17 01:40:24,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:24,080 INFO L82 PathProgramCache]: Analyzing trace with hash -274460668, now seen corresponding path program 1 times [2020-09-17 01:40:24,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:24,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406778650] [2020-09-17 01:40:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:24,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406778650] [2020-09-17 01:40:24,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253284085] [2020-09-17 01:40:24,138 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 [2020-09-17 01:40:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:24,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:24,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:24,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:24,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:24,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:24,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315262740] [2020-09-17 01:40:24,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:24,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:24,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:24,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:24,265 INFO L87 Difference]: Start difference. First operand 8452 states and 38704 transitions. Second operand 9 states. [2020-09-17 01:40:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:24,713 INFO L93 Difference]: Finished difference Result 19670 states and 79028 transitions. [2020-09-17 01:40:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:24,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-17 01:40:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:24,798 INFO L225 Difference]: With dead ends: 19670 [2020-09-17 01:40:24,798 INFO L226 Difference]: Without dead ends: 19645 [2020-09-17 01:40:24,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:40:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19645 states. [2020-09-17 01:40:25,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19645 to 8480. [2020-09-17 01:40:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8480 states. [2020-09-17 01:40:25,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8480 states to 8480 states and 38825 transitions. [2020-09-17 01:40:25,338 INFO L78 Accepts]: Start accepts. Automaton has 8480 states and 38825 transitions. Word has length 19 [2020-09-17 01:40:25,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:25,339 INFO L479 AbstractCegarLoop]: Abstraction has 8480 states and 38825 transitions. [2020-09-17 01:40:25,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 8480 states and 38825 transitions. [2020-09-17 01:40:25,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:25,340 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:25,340 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:25,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-09-17 01:40:25,554 INFO L427 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]=== [2020-09-17 01:40:25,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:25,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1149256224, now seen corresponding path program 2 times [2020-09-17 01:40:25,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:25,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494980900] [2020-09-17 01:40:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:25,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494980900] [2020-09-17 01:40:25,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:25,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:25,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903069398] [2020-09-17 01:40:25,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:25,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:25,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:25,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:25,623 INFO L87 Difference]: Start difference. First operand 8480 states and 38825 transitions. Second operand 7 states. [2020-09-17 01:40:26,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:26,057 INFO L93 Difference]: Finished difference Result 19852 states and 79846 transitions. [2020-09-17 01:40:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:26,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:40:26,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:26,106 INFO L225 Difference]: With dead ends: 19852 [2020-09-17 01:40:26,106 INFO L226 Difference]: Without dead ends: 19827 [2020-09-17 01:40:26,107 INFO L675 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 [2020-09-17 01:40:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19827 states. [2020-09-17 01:40:26,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19827 to 8379. [2020-09-17 01:40:26,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8379 states. [2020-09-17 01:40:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8379 states to 8379 states and 38406 transitions. [2020-09-17 01:40:26,443 INFO L78 Accepts]: Start accepts. Automaton has 8379 states and 38406 transitions. Word has length 19 [2020-09-17 01:40:26,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:26,444 INFO L479 AbstractCegarLoop]: Abstraction has 8379 states and 38406 transitions. [2020-09-17 01:40:26,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 8379 states and 38406 transitions. [2020-09-17 01:40:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:40:26,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:26,445 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:26,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-09-17 01:40:26,446 INFO L427 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]=== [2020-09-17 01:40:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:26,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1149271290, now seen corresponding path program 2 times [2020-09-17 01:40:26,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:26,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126331202] [2020-09-17 01:40:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:26,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126331202] [2020-09-17 01:40:26,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:26,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:26,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418266223] [2020-09-17 01:40:26,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:26,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:26,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:26,512 INFO L87 Difference]: Start difference. First operand 8379 states and 38406 transitions. Second operand 7 states. [2020-09-17 01:40:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:26,844 INFO L93 Difference]: Finished difference Result 19555 states and 78564 transitions. [2020-09-17 01:40:26,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:26,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:40:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:26,900 INFO L225 Difference]: With dead ends: 19555 [2020-09-17 01:40:26,900 INFO L226 Difference]: Without dead ends: 19530 [2020-09-17 01:40:26,901 INFO L675 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 [2020-09-17 01:40:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19530 states. [2020-09-17 01:40:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19530 to 8317. [2020-09-17 01:40:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8317 states. [2020-09-17 01:40:27,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 38184 transitions. [2020-09-17 01:40:27,258 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 38184 transitions. Word has length 19 [2020-09-17 01:40:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:27,258 INFO L479 AbstractCegarLoop]: Abstraction has 8317 states and 38184 transitions. [2020-09-17 01:40:27,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 38184 transitions. [2020-09-17 01:40:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:27,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:27,260 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:27,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-09-17 01:40:27,260 INFO L427 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]=== [2020-09-17 01:40:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:27,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1557322431, now seen corresponding path program 1 times [2020-09-17 01:40:27,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:27,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017018804] [2020-09-17 01:40:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:27,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017018804] [2020-09-17 01:40:27,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854915382] [2020-09-17 01:40:27,344 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 [2020-09-17 01:40:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:27,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:27,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:40:27,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:27,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:27,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005131178] [2020-09-17 01:40:27,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:27,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:27,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:27,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:27,464 INFO L87 Difference]: Start difference. First operand 8317 states and 38184 transitions. Second operand 11 states. [2020-09-17 01:40:28,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:28,295 INFO L93 Difference]: Finished difference Result 26969 states and 101544 transitions. [2020-09-17 01:40:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:28,295 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:28,564 INFO L225 Difference]: With dead ends: 26969 [2020-09-17 01:40:28,564 INFO L226 Difference]: Without dead ends: 26957 [2020-09-17 01:40:28,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26957 states. [2020-09-17 01:40:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26957 to 8204. [2020-09-17 01:40:28,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8204 states. [2020-09-17 01:40:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8204 states to 8204 states and 37628 transitions. [2020-09-17 01:40:28,929 INFO L78 Accepts]: Start accepts. Automaton has 8204 states and 37628 transitions. Word has length 21 [2020-09-17 01:40:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:28,929 INFO L479 AbstractCegarLoop]: Abstraction has 8204 states and 37628 transitions. [2020-09-17 01:40:28,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 8204 states and 37628 transitions. [2020-09-17 01:40:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:28,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:28,930 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:29,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:29,131 INFO L427 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]=== [2020-09-17 01:40:29,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:29,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1862834243, now seen corresponding path program 2 times [2020-09-17 01:40:29,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:29,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120591052] [2020-09-17 01:40:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:29,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120591052] [2020-09-17 01:40:29,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711123844] [2020-09-17 01:40:29,217 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 [2020-09-17 01:40:29,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:40:29,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:29,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:29,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:29,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:29,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:29,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:29,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330042512] [2020-09-17 01:40:29,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:29,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:29,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:29,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:29,372 INFO L87 Difference]: Start difference. First operand 8204 states and 37628 transitions. Second operand 11 states. [2020-09-17 01:40:30,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:30,341 INFO L93 Difference]: Finished difference Result 26661 states and 100277 transitions. [2020-09-17 01:40:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:30,342 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:30,442 INFO L225 Difference]: With dead ends: 26661 [2020-09-17 01:40:30,443 INFO L226 Difference]: Without dead ends: 26645 [2020-09-17 01:40:30,444 INFO L675 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 [2020-09-17 01:40:30,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26645 states. [2020-09-17 01:40:30,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26645 to 8091. [2020-09-17 01:40:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8091 states. [2020-09-17 01:40:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8091 states to 8091 states and 37076 transitions. [2020-09-17 01:40:31,009 INFO L78 Accepts]: Start accepts. Automaton has 8091 states and 37076 transitions. Word has length 21 [2020-09-17 01:40:31,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:31,010 INFO L479 AbstractCegarLoop]: Abstraction has 8091 states and 37076 transitions. [2020-09-17 01:40:31,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:31,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8091 states and 37076 transitions. [2020-09-17 01:40:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:31,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:31,011 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:31,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2020-09-17 01:40:31,212 INFO L427 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]=== [2020-09-17 01:40:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:31,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1769991039, now seen corresponding path program 3 times [2020-09-17 01:40:31,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:31,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963803441] [2020-09-17 01:40:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:31,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963803441] [2020-09-17 01:40:31,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228214166] [2020-09-17 01:40:31,287 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 [2020-09-17 01:40:31,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:40:31,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:31,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:31,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:31,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:31,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:31,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748929476] [2020-09-17 01:40:31,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:31,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:31,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:31,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:31,412 INFO L87 Difference]: Start difference. First operand 8091 states and 37076 transitions. Second operand 11 states. [2020-09-17 01:40:32,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:32,325 INFO L93 Difference]: Finished difference Result 26686 states and 100402 transitions. [2020-09-17 01:40:32,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:32,326 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:32,400 INFO L225 Difference]: With dead ends: 26686 [2020-09-17 01:40:32,400 INFO L226 Difference]: Without dead ends: 26674 [2020-09-17 01:40:32,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26674 states. [2020-09-17 01:40:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26674 to 7861. [2020-09-17 01:40:32,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7861 states. [2020-09-17 01:40:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7861 states to 7861 states and 36066 transitions. [2020-09-17 01:40:32,787 INFO L78 Accepts]: Start accepts. Automaton has 7861 states and 36066 transitions. Word has length 21 [2020-09-17 01:40:32,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:32,787 INFO L479 AbstractCegarLoop]: Abstraction has 7861 states and 36066 transitions. [2020-09-17 01:40:32,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:32,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7861 states and 36066 transitions. [2020-09-17 01:40:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:32,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:32,788 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:32,989 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:32,989 INFO L427 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]=== [2020-09-17 01:40:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:32,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1763681919, now seen corresponding path program 4 times [2020-09-17 01:40:32,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:32,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092996730] [2020-09-17 01:40:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:33,066 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:33,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092996730] [2020-09-17 01:40:33,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311406125] [2020-09-17 01:40:33,066 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 [2020-09-17 01:40:33,146 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:40:33,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:33,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:33,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:40:33,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:33,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:33,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276650344] [2020-09-17 01:40:33,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:33,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:33,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:33,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:33,187 INFO L87 Difference]: Start difference. First operand 7861 states and 36066 transitions. Second operand 11 states. [2020-09-17 01:40:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:33,962 INFO L93 Difference]: Finished difference Result 26489 states and 99650 transitions. [2020-09-17 01:40:33,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:33,962 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:40:33,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:34,039 INFO L225 Difference]: With dead ends: 26489 [2020-09-17 01:40:34,040 INFO L226 Difference]: Without dead ends: 26473 [2020-09-17 01:40:34,040 INFO L675 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 [2020-09-17 01:40:34,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26473 states. [2020-09-17 01:40:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26473 to 7748. [2020-09-17 01:40:34,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7748 states. [2020-09-17 01:40:34,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 35514 transitions. [2020-09-17 01:40:34,428 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 35514 transitions. Word has length 21 [2020-09-17 01:40:34,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:34,428 INFO L479 AbstractCegarLoop]: Abstraction has 7748 states and 35514 transitions. [2020-09-17 01:40:34,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 35514 transitions. [2020-09-17 01:40:34,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:34,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:34,429 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:34,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-09-17 01:40:34,638 INFO L427 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]=== [2020-09-17 01:40:34,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:34,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1774143127, now seen corresponding path program 1 times [2020-09-17 01:40:34,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:34,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939069762] [2020-09-17 01:40:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:40:34,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939069762] [2020-09-17 01:40:34,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:34,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:40:34,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950233893] [2020-09-17 01:40:34,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:40:34,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:40:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:40:34,692 INFO L87 Difference]: Start difference. First operand 7748 states and 35514 transitions. Second operand 5 states. [2020-09-17 01:40:34,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:34,967 INFO L93 Difference]: Finished difference Result 13251 states and 57501 transitions. [2020-09-17 01:40:34,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:40:34,968 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-17 01:40:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:35,014 INFO L225 Difference]: With dead ends: 13251 [2020-09-17 01:40:35,015 INFO L226 Difference]: Without dead ends: 13220 [2020-09-17 01:40:35,016 INFO L675 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 [2020-09-17 01:40:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13220 states. [2020-09-17 01:40:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13220 to 9255. [2020-09-17 01:40:35,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9255 states. [2020-09-17 01:40:35,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9255 states to 9255 states and 42368 transitions. [2020-09-17 01:40:35,301 INFO L78 Accepts]: Start accepts. Automaton has 9255 states and 42368 transitions. Word has length 21 [2020-09-17 01:40:35,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:35,302 INFO L479 AbstractCegarLoop]: Abstraction has 9255 states and 42368 transitions. [2020-09-17 01:40:35,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:40:35,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9255 states and 42368 transitions. [2020-09-17 01:40:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:35,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:35,304 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:35,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-09-17 01:40:35,304 INFO L427 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]=== [2020-09-17 01:40:35,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:35,305 INFO L82 PathProgramCache]: Analyzing trace with hash -628636285, now seen corresponding path program 5 times [2020-09-17 01:40:35,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:35,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465992307] [2020-09-17 01:40:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:35,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465992307] [2020-09-17 01:40:35,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:35,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:40:35,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786732543] [2020-09-17 01:40:35,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:35,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:35,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:35,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:35,384 INFO L87 Difference]: Start difference. First operand 9255 states and 42368 transitions. Second operand 9 states. [2020-09-17 01:40:36,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:36,160 INFO L93 Difference]: Finished difference Result 29788 states and 113841 transitions. [2020-09-17 01:40:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:36,160 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:40:36,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:36,229 INFO L225 Difference]: With dead ends: 29788 [2020-09-17 01:40:36,230 INFO L226 Difference]: Without dead ends: 29770 [2020-09-17 01:40:36,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:40:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29770 states. [2020-09-17 01:40:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29770 to 8964. [2020-09-17 01:40:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8964 states. [2020-09-17 01:40:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 41031 transitions. [2020-09-17 01:40:36,718 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 41031 transitions. Word has length 21 [2020-09-17 01:40:36,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:36,719 INFO L479 AbstractCegarLoop]: Abstraction has 8964 states and 41031 transitions. [2020-09-17 01:40:36,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:36,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 41031 transitions. [2020-09-17 01:40:36,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:40:36,720 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:36,720 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:36,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-09-17 01:40:36,721 INFO L427 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]=== [2020-09-17 01:40:36,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:36,721 INFO L82 PathProgramCache]: Analyzing trace with hash -643099645, now seen corresponding path program 6 times [2020-09-17 01:40:36,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:36,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491296140] [2020-09-17 01:40:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:36,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:40:36,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491296140] [2020-09-17 01:40:36,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:36,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:40:36,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239258722] [2020-09-17 01:40:36,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:36,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:36,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:36,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:36,816 INFO L87 Difference]: Start difference. First operand 8964 states and 41031 transitions. Second operand 9 states. [2020-09-17 01:40:37,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:37,685 INFO L93 Difference]: Finished difference Result 29379 states and 112099 transitions. [2020-09-17 01:40:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:37,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:40:37,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:37,757 INFO L225 Difference]: With dead ends: 29379 [2020-09-17 01:40:37,757 INFO L226 Difference]: Without dead ends: 29356 [2020-09-17 01:40:37,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:40:37,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29356 states. [2020-09-17 01:40:38,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29356 to 8573. [2020-09-17 01:40:38,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8573 states. [2020-09-17 01:40:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 39353 transitions. [2020-09-17 01:40:38,361 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 39353 transitions. Word has length 21 [2020-09-17 01:40:38,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:38,361 INFO L479 AbstractCegarLoop]: Abstraction has 8573 states and 39353 transitions. [2020-09-17 01:40:38,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:38,361 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 39353 transitions. [2020-09-17 01:40:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:38,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:38,363 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:38,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-09-17 01:40:38,363 INFO L427 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]=== [2020-09-17 01:40:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:38,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1599602836, now seen corresponding path program 1 times [2020-09-17 01:40:38,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:38,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225873035] [2020-09-17 01:40:38,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:38,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225873035] [2020-09-17 01:40:38,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975717178] [2020-09-17 01:40:38,437 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 [2020-09-17 01:40:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:38,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:38,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:38,563 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:38,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:38,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:38,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848516303] [2020-09-17 01:40:38,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:38,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:38,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:38,565 INFO L87 Difference]: Start difference. First operand 8573 states and 39353 transitions. Second operand 9 states. [2020-09-17 01:40:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:38,947 INFO L93 Difference]: Finished difference Result 19727 states and 80274 transitions. [2020-09-17 01:40:38,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:38,949 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-17 01:40:38,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:38,994 INFO L225 Difference]: With dead ends: 19727 [2020-09-17 01:40:38,994 INFO L226 Difference]: Without dead ends: 19703 [2020-09-17 01:40:38,994 INFO L675 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 [2020-09-17 01:40:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19703 states. [2020-09-17 01:40:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19703 to 8847. [2020-09-17 01:40:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8847 states. [2020-09-17 01:40:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 40495 transitions. [2020-09-17 01:40:39,316 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 40495 transitions. Word has length 23 [2020-09-17 01:40:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:39,316 INFO L479 AbstractCegarLoop]: Abstraction has 8847 states and 40495 transitions. [2020-09-17 01:40:39,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 40495 transitions. [2020-09-17 01:40:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:39,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:39,319 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:39,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-09-17 01:40:39,533 INFO L427 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]=== [2020-09-17 01:40:39,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash 72758744, now seen corresponding path program 1 times [2020-09-17 01:40:39,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:39,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733742913] [2020-09-17 01:40:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:39,599 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:39,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733742913] [2020-09-17 01:40:39,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57734054] [2020-09-17 01:40:39,600 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 [2020-09-17 01:40:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:39,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:39,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:39,732 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:39,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:39,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:39,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561436896] [2020-09-17 01:40:39,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:39,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:39,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:39,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:39,734 INFO L87 Difference]: Start difference. First operand 8847 states and 40495 transitions. Second operand 9 states. [2020-09-17 01:40:40,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:40,101 INFO L93 Difference]: Finished difference Result 20694 states and 84261 transitions. [2020-09-17 01:40:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:40,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-17 01:40:40,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:40,155 INFO L225 Difference]: With dead ends: 20694 [2020-09-17 01:40:40,155 INFO L226 Difference]: Without dead ends: 20666 [2020-09-17 01:40:40,155 INFO L675 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 [2020-09-17 01:40:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20666 states. [2020-09-17 01:40:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20666 to 9115. [2020-09-17 01:40:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9115 states. [2020-09-17 01:40:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9115 states to 9115 states and 41679 transitions. [2020-09-17 01:40:40,494 INFO L78 Accepts]: Start accepts. Automaton has 9115 states and 41679 transitions. Word has length 23 [2020-09-17 01:40:40,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:40,495 INFO L479 AbstractCegarLoop]: Abstraction has 9115 states and 41679 transitions. [2020-09-17 01:40:40,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9115 states and 41679 transitions. [2020-09-17 01:40:40,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:40,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:40,497 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:40,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:40,698 INFO L427 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]=== [2020-09-17 01:40:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash -328675496, now seen corresponding path program 1 times [2020-09-17 01:40:40,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:40,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335044269] [2020-09-17 01:40:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:40,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:40:40,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335044269] [2020-09-17 01:40:40,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588419544] [2020-09-17 01:40:40,763 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 [2020-09-17 01:40:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:40,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:40:40,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:40:40,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:40,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:40:40,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158955837] [2020-09-17 01:40:40,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:40:40,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:40,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:40:40,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:40:40,861 INFO L87 Difference]: Start difference. First operand 9115 states and 41679 transitions. Second operand 9 states. [2020-09-17 01:40:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:41,249 INFO L93 Difference]: Finished difference Result 21396 states and 87360 transitions. [2020-09-17 01:40:41,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:41,249 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-17 01:40:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:41,300 INFO L225 Difference]: With dead ends: 21396 [2020-09-17 01:40:41,301 INFO L226 Difference]: Without dead ends: 21359 [2020-09-17 01:40:41,301 INFO L675 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 [2020-09-17 01:40:41,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21359 states. [2020-09-17 01:40:41,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21359 to 9320. [2020-09-17 01:40:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9320 states. [2020-09-17 01:40:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 42648 transitions. [2020-09-17 01:40:41,807 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 42648 transitions. Word has length 23 [2020-09-17 01:40:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:41,807 INFO L479 AbstractCegarLoop]: Abstraction has 9320 states and 42648 transitions. [2020-09-17 01:40:41,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:40:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 42648 transitions. [2020-09-17 01:40:41,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:41,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:41,810 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:42,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-09-17 01:40:42,016 INFO L427 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]=== [2020-09-17 01:40:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:42,017 INFO L82 PathProgramCache]: Analyzing trace with hash -150456492, now seen corresponding path program 2 times [2020-09-17 01:40:42,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:42,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054288987] [2020-09-17 01:40:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:40:42,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054288987] [2020-09-17 01:40:42,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:42,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:42,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389333890] [2020-09-17 01:40:42,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:42,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:42,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:42,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:42,080 INFO L87 Difference]: Start difference. First operand 9320 states and 42648 transitions. Second operand 7 states. [2020-09-17 01:40:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:42,413 INFO L93 Difference]: Finished difference Result 21489 states and 87752 transitions. [2020-09-17 01:40:42,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:42,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:40:42,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:42,464 INFO L225 Difference]: With dead ends: 21489 [2020-09-17 01:40:42,464 INFO L226 Difference]: Without dead ends: 21452 [2020-09-17 01:40:42,464 INFO L675 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 [2020-09-17 01:40:42,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21452 states. [2020-09-17 01:40:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21452 to 9401. [2020-09-17 01:40:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9401 states. [2020-09-17 01:40:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 43010 transitions. [2020-09-17 01:40:42,823 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 43010 transitions. Word has length 23 [2020-09-17 01:40:42,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:42,823 INFO L479 AbstractCegarLoop]: Abstraction has 9401 states and 43010 transitions. [2020-09-17 01:40:42,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:42,824 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 43010 transitions. [2020-09-17 01:40:42,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:42,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:42,826 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:42,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-09-17 01:40:42,826 INFO L427 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]=== [2020-09-17 01:40:42,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:42,827 INFO L82 PathProgramCache]: Analyzing trace with hash -150471558, now seen corresponding path program 2 times [2020-09-17 01:40:42,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:42,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806248179] [2020-09-17 01:40:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:40:42,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806248179] [2020-09-17 01:40:42,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:42,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:42,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042204934] [2020-09-17 01:40:42,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:42,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:42,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:42,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:42,904 INFO L87 Difference]: Start difference. First operand 9401 states and 43010 transitions. Second operand 7 states. [2020-09-17 01:40:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:43,237 INFO L93 Difference]: Finished difference Result 21218 states and 86469 transitions. [2020-09-17 01:40:43,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:43,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:40:43,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:43,288 INFO L225 Difference]: With dead ends: 21218 [2020-09-17 01:40:43,288 INFO L226 Difference]: Without dead ends: 21181 [2020-09-17 01:40:43,289 INFO L675 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 [2020-09-17 01:40:43,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21181 states. [2020-09-17 01:40:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21181 to 9396. [2020-09-17 01:40:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9396 states. [2020-09-17 01:40:43,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9396 states to 9396 states and 42985 transitions. [2020-09-17 01:40:43,641 INFO L78 Accepts]: Start accepts. Automaton has 9396 states and 42985 transitions. Word has length 23 [2020-09-17 01:40:43,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:43,642 INFO L479 AbstractCegarLoop]: Abstraction has 9396 states and 42985 transitions. [2020-09-17 01:40:43,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:43,642 INFO L276 IsEmpty]: Start isEmpty. Operand 9396 states and 42985 transitions. [2020-09-17 01:40:43,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:40:43,644 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:43,644 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:43,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-09-17 01:40:43,644 INFO L427 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]=== [2020-09-17 01:40:43,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:43,645 INFO L82 PathProgramCache]: Analyzing trace with hash -150449920, now seen corresponding path program 2 times [2020-09-17 01:40:43,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:43,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93218616] [2020-09-17 01:40:43,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:43,712 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:40:43,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93218616] [2020-09-17 01:40:43,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:40:43,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:40:43,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204860541] [2020-09-17 01:40:43,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:40:43,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:43,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:40:43,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:40:43,714 INFO L87 Difference]: Start difference. First operand 9396 states and 42985 transitions. Second operand 7 states. [2020-09-17 01:40:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:44,045 INFO L93 Difference]: Finished difference Result 21047 states and 85702 transitions. [2020-09-17 01:40:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:40:44,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:40:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:44,095 INFO L225 Difference]: With dead ends: 21047 [2020-09-17 01:40:44,095 INFO L226 Difference]: Without dead ends: 21010 [2020-09-17 01:40:44,095 INFO L675 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 [2020-09-17 01:40:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21010 states. [2020-09-17 01:40:44,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21010 to 9426. [2020-09-17 01:40:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9426 states. [2020-09-17 01:40:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9426 states to 9426 states and 43057 transitions. [2020-09-17 01:40:44,584 INFO L78 Accepts]: Start accepts. Automaton has 9426 states and 43057 transitions. Word has length 23 [2020-09-17 01:40:44,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:44,584 INFO L479 AbstractCegarLoop]: Abstraction has 9426 states and 43057 transitions. [2020-09-17 01:40:44,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:40:44,584 INFO L276 IsEmpty]: Start isEmpty. Operand 9426 states and 43057 transitions. [2020-09-17 01:40:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:44,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:44,587 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:44,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-09-17 01:40:44,587 INFO L427 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]=== [2020-09-17 01:40:44,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:44,588 INFO L82 PathProgramCache]: Analyzing trace with hash -156736363, now seen corresponding path program 1 times [2020-09-17 01:40:44,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:44,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493758920] [2020-09-17 01:40:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:44,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493758920] [2020-09-17 01:40:44,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386399353] [2020-09-17 01:40:44,673 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 [2020-09-17 01:40:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:44,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:44,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:40:44,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:44,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:44,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945529145] [2020-09-17 01:40:44,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:44,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:44,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:44,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:44,813 INFO L87 Difference]: Start difference. First operand 9426 states and 43057 transitions. Second operand 11 states. [2020-09-17 01:40:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:45,724 INFO L93 Difference]: Finished difference Result 30145 states and 115754 transitions. [2020-09-17 01:40:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:45,725 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:45,803 INFO L225 Difference]: With dead ends: 30145 [2020-09-17 01:40:45,803 INFO L226 Difference]: Without dead ends: 30125 [2020-09-17 01:40:45,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:45,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30125 states. [2020-09-17 01:40:46,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30125 to 9338. [2020-09-17 01:40:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9338 states. [2020-09-17 01:40:46,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 42582 transitions. [2020-09-17 01:40:46,251 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 42582 transitions. Word has length 25 [2020-09-17 01:40:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:46,251 INFO L479 AbstractCegarLoop]: Abstraction has 9338 states and 42582 transitions. [2020-09-17 01:40:46,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 42582 transitions. [2020-09-17 01:40:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:46,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:46,254 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:46,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-09-17 01:40:46,455 INFO L427 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]=== [2020-09-17 01:40:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:46,456 INFO L82 PathProgramCache]: Analyzing trace with hash -558170603, now seen corresponding path program 1 times [2020-09-17 01:40:46,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:46,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037595359] [2020-09-17 01:40:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:46,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037595359] [2020-09-17 01:40:46,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195810130] [2020-09-17 01:40:46,545 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 [2020-09-17 01:40:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:46,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:46,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:46,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:46,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:46,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274204570] [2020-09-17 01:40:46,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:46,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:46,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:46,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:46,679 INFO L87 Difference]: Start difference. First operand 9338 states and 42582 transitions. Second operand 11 states. [2020-09-17 01:40:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:47,477 INFO L93 Difference]: Finished difference Result 29696 states and 113916 transitions. [2020-09-17 01:40:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:47,478 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:47,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:47,549 INFO L225 Difference]: With dead ends: 29696 [2020-09-17 01:40:47,549 INFO L226 Difference]: Without dead ends: 29676 [2020-09-17 01:40:47,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29676 states. [2020-09-17 01:40:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29676 to 9291. [2020-09-17 01:40:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9291 states. [2020-09-17 01:40:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 42295 transitions. [2020-09-17 01:40:47,993 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 42295 transitions. Word has length 25 [2020-09-17 01:40:47,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:47,993 INFO L479 AbstractCegarLoop]: Abstraction has 9291 states and 42295 transitions. [2020-09-17 01:40:47,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 42295 transitions. [2020-09-17 01:40:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:47,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:47,996 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:48,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-09-17 01:40:48,197 INFO L427 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]=== [2020-09-17 01:40:48,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:48,197 INFO L82 PathProgramCache]: Analyzing trace with hash -379966665, now seen corresponding path program 2 times [2020-09-17 01:40:48,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:48,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135291057] [2020-09-17 01:40:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:48,286 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:48,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135291057] [2020-09-17 01:40:48,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137011578] [2020-09-17 01:40:48,287 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 [2020-09-17 01:40:48,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:40:48,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:48,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:48,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:48,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:48,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:48,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805184440] [2020-09-17 01:40:48,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:48,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:48,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:48,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:48,430 INFO L87 Difference]: Start difference. First operand 9291 states and 42295 transitions. Second operand 11 states. [2020-09-17 01:40:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:49,364 INFO L93 Difference]: Finished difference Result 29267 states and 112142 transitions. [2020-09-17 01:40:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:49,365 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:49,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:49,432 INFO L225 Difference]: With dead ends: 29267 [2020-09-17 01:40:49,432 INFO L226 Difference]: Without dead ends: 29245 [2020-09-17 01:40:49,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29245 states. [2020-09-17 01:40:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29245 to 9288. [2020-09-17 01:40:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9288 states. [2020-09-17 01:40:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9288 states to 9288 states and 42242 transitions. [2020-09-17 01:40:49,862 INFO L78 Accepts]: Start accepts. Automaton has 9288 states and 42242 transitions. Word has length 25 [2020-09-17 01:40:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:49,862 INFO L479 AbstractCegarLoop]: Abstraction has 9288 states and 42242 transitions. [2020-09-17 01:40:49,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9288 states and 42242 transitions. [2020-09-17 01:40:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:49,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:49,866 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:50,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-09-17 01:40:50,067 INFO L427 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]=== [2020-09-17 01:40:50,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:50,067 INFO L82 PathProgramCache]: Analyzing trace with hash -379945027, now seen corresponding path program 2 times [2020-09-17 01:40:50,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:50,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243044310] [2020-09-17 01:40:50,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:50,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243044310] [2020-09-17 01:40:50,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235059269] [2020-09-17 01:40:50,157 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 [2020-09-17 01:40:50,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:40:50,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:50,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:50,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:40:50,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:50,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:50,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576631111] [2020-09-17 01:40:50,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:50,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:50,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:50,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:50,291 INFO L87 Difference]: Start difference. First operand 9288 states and 42242 transitions. Second operand 11 states. [2020-09-17 01:40:51,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:51,162 INFO L93 Difference]: Finished difference Result 28920 states and 110796 transitions. [2020-09-17 01:40:51,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:51,162 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:51,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:51,239 INFO L225 Difference]: With dead ends: 28920 [2020-09-17 01:40:51,239 INFO L226 Difference]: Without dead ends: 28898 [2020-09-17 01:40:51,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28898 states. [2020-09-17 01:40:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28898 to 9176. [2020-09-17 01:40:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9176 states. [2020-09-17 01:40:51,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 41695 transitions. [2020-09-17 01:40:51,705 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 41695 transitions. Word has length 25 [2020-09-17 01:40:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:51,705 INFO L479 AbstractCegarLoop]: Abstraction has 9176 states and 41695 transitions. [2020-09-17 01:40:51,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 41695 transitions. [2020-09-17 01:40:51,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:51,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:51,709 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:51,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:51,910 INFO L427 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]=== [2020-09-17 01:40:51,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:51,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1211690581, now seen corresponding path program 3 times [2020-09-17 01:40:51,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:51,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568960099] [2020-09-17 01:40:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:51,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568960099] [2020-09-17 01:40:51,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328444802] [2020-09-17 01:40:51,999 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 [2020-09-17 01:40:52,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-09-17 01:40:52,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:52,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:52,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:52,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:52,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:52,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995035825] [2020-09-17 01:40:52,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:52,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:52,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:52,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:52,125 INFO L87 Difference]: Start difference. First operand 9176 states and 41695 transitions. Second operand 11 states. [2020-09-17 01:40:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:52,973 INFO L93 Difference]: Finished difference Result 29038 states and 111216 transitions. [2020-09-17 01:40:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:52,974 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:53,040 INFO L225 Difference]: With dead ends: 29038 [2020-09-17 01:40:53,040 INFO L226 Difference]: Without dead ends: 29018 [2020-09-17 01:40:53,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29018 states. [2020-09-17 01:40:53,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29018 to 9000. [2020-09-17 01:40:53,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9000 states. [2020-09-17 01:40:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 40897 transitions. [2020-09-17 01:40:53,694 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 40897 transitions. Word has length 25 [2020-09-17 01:40:53,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:53,694 INFO L479 AbstractCegarLoop]: Abstraction has 9000 states and 40897 transitions. [2020-09-17 01:40:53,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:53,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 40897 transitions. [2020-09-17 01:40:53,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:53,697 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:53,698 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:53,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-09-17 01:40:53,898 INFO L427 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]=== [2020-09-17 01:40:53,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:53,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1201691221, now seen corresponding path program 4 times [2020-09-17 01:40:53,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:53,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546211354] [2020-09-17 01:40:53,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:53,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:53,986 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:53,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546211354] [2020-09-17 01:40:53,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770012379] [2020-09-17 01:40:53,986 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 [2020-09-17 01:40:54,072 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:40:54,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:54,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:54,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:54,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:54,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:54,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508250576] [2020-09-17 01:40:54,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:54,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:54,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:54,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:54,100 INFO L87 Difference]: Start difference. First operand 9000 states and 40897 transitions. Second operand 11 states. [2020-09-17 01:40:54,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:54,918 INFO L93 Difference]: Finished difference Result 29283 states and 112236 transitions. [2020-09-17 01:40:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:54,918 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:54,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:54,983 INFO L225 Difference]: With dead ends: 29283 [2020-09-17 01:40:54,984 INFO L226 Difference]: Without dead ends: 29261 [2020-09-17 01:40:54,984 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:55,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29261 states. [2020-09-17 01:40:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29261 to 8997. [2020-09-17 01:40:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8997 states. [2020-09-17 01:40:55,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 40842 transitions. [2020-09-17 01:40:55,410 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 40842 transitions. Word has length 25 [2020-09-17 01:40:55,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:55,411 INFO L479 AbstractCegarLoop]: Abstraction has 8997 states and 40842 transitions. [2020-09-17 01:40:55,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:55,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 40842 transitions. [2020-09-17 01:40:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:55,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:55,414 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:55,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:55,615 INFO L427 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]=== [2020-09-17 01:40:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1201697793, now seen corresponding path program 1 times [2020-09-17 01:40:55,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:55,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286327519] [2020-09-17 01:40:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:55,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:55,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286327519] [2020-09-17 01:40:55,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526648599] [2020-09-17 01:40:55,697 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 [2020-09-17 01:40:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:55,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:55,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:55,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:55,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:55,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326760095] [2020-09-17 01:40:55,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:55,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:55,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:55,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:55,832 INFO L87 Difference]: Start difference. First operand 8997 states and 40842 transitions. Second operand 11 states. [2020-09-17 01:40:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:56,717 INFO L93 Difference]: Finished difference Result 29105 states and 111801 transitions. [2020-09-17 01:40:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:56,718 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:56,782 INFO L225 Difference]: With dead ends: 29105 [2020-09-17 01:40:56,782 INFO L226 Difference]: Without dead ends: 29085 [2020-09-17 01:40:56,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:40:56,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2020-09-17 01:40:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 8955. [2020-09-17 01:40:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8955 states. [2020-09-17 01:40:57,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8955 states to 8955 states and 40593 transitions. [2020-09-17 01:40:57,209 INFO L78 Accepts]: Start accepts. Automaton has 8955 states and 40593 transitions. Word has length 25 [2020-09-17 01:40:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:57,210 INFO L479 AbstractCegarLoop]: Abstraction has 8955 states and 40593 transitions. [2020-09-17 01:40:57,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 8955 states and 40593 transitions. [2020-09-17 01:40:57,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:57,213 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:57,213 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:57,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-09-17 01:40:57,414 INFO L427 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]=== [2020-09-17 01:40:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1218006273, now seen corresponding path program 2 times [2020-09-17 01:40:57,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:57,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62109877] [2020-09-17 01:40:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:57,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62109877] [2020-09-17 01:40:57,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123816506] [2020-09-17 01:40:57,499 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 [2020-09-17 01:40:57,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:40:57,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:57,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:57,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-17 01:40:57,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:57,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:57,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719016323] [2020-09-17 01:40:57,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:57,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:57,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:57,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:57,632 INFO L87 Difference]: Start difference. First operand 8955 states and 40593 transitions. Second operand 11 states. [2020-09-17 01:40:58,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:40:58,456 INFO L93 Difference]: Finished difference Result 28806 states and 110558 transitions. [2020-09-17 01:40:58,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:40:58,456 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:40:58,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:40:58,525 INFO L225 Difference]: With dead ends: 28806 [2020-09-17 01:40:58,525 INFO L226 Difference]: Without dead ends: 28779 [2020-09-17 01:40:58,526 INFO L675 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 [2020-09-17 01:40:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28779 states. [2020-09-17 01:40:58,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28779 to 8841. [2020-09-17 01:40:58,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8841 states. [2020-09-17 01:40:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 40062 transitions. [2020-09-17 01:40:59,290 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 40062 transitions. Word has length 25 [2020-09-17 01:40:59,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:40:59,290 INFO L479 AbstractCegarLoop]: Abstraction has 8841 states and 40062 transitions. [2020-09-17 01:40:59,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:40:59,290 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 40062 transitions. [2020-09-17 01:40:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:40:59,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:40:59,296 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:40:59,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:40:59,497 INFO L427 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]=== [2020-09-17 01:40:59,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:40:59,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1980442581, now seen corresponding path program 3 times [2020-09-17 01:40:59,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:40:59,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800416833] [2020-09-17 01:40:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:40:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:40:59,594 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:40:59,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800416833] [2020-09-17 01:40:59,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740617792] [2020-09-17 01:40:59,595 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 [2020-09-17 01:40:59,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:40:59,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:40:59,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:40:59,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:40:59,748 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:40:59,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:40:59,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:40:59,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049387526] [2020-09-17 01:40:59,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:40:59,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:40:59,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:40:59,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:40:59,751 INFO L87 Difference]: Start difference. First operand 8841 states and 40062 transitions. Second operand 11 states. [2020-09-17 01:41:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:00,728 INFO L93 Difference]: Finished difference Result 28636 states and 109852 transitions. [2020-09-17 01:41:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:00,729 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:41:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:00,801 INFO L225 Difference]: With dead ends: 28636 [2020-09-17 01:41:00,802 INFO L226 Difference]: Without dead ends: 28616 [2020-09-17 01:41:00,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:41:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28616 states. [2020-09-17 01:41:01,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28616 to 8702. [2020-09-17 01:41:01,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8702 states. [2020-09-17 01:41:01,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8702 states to 8702 states and 39438 transitions. [2020-09-17 01:41:01,248 INFO L78 Accepts]: Start accepts. Automaton has 8702 states and 39438 transitions. Word has length 25 [2020-09-17 01:41:01,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:01,248 INFO L479 AbstractCegarLoop]: Abstraction has 8702 states and 39438 transitions. [2020-09-17 01:41:01,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:41:01,248 INFO L276 IsEmpty]: Start isEmpty. Operand 8702 states and 39438 transitions. [2020-09-17 01:41:01,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:01,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:01,251 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:01,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-09-17 01:41:01,452 INFO L427 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]=== [2020-09-17 01:41:01,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:01,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1965964155, now seen corresponding path program 3 times [2020-09-17 01:41:01,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:01,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542838821] [2020-09-17 01:41:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:01,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542838821] [2020-09-17 01:41:01,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076399849] [2020-09-17 01:41:01,538 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 [2020-09-17 01:41:01,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:41:01,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:41:01,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:41:01,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:01,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:01,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:41:01,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618161200] [2020-09-17 01:41:01,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:41:01,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:01,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:41:01,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:41:01,667 INFO L87 Difference]: Start difference. First operand 8702 states and 39438 transitions. Second operand 11 states. [2020-09-17 01:41:02,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:02,471 INFO L93 Difference]: Finished difference Result 28297 states and 108461 transitions. [2020-09-17 01:41:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:02,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:41:02,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:02,541 INFO L225 Difference]: With dead ends: 28297 [2020-09-17 01:41:02,541 INFO L226 Difference]: Without dead ends: 28277 [2020-09-17 01:41:02,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:41:02,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28277 states. [2020-09-17 01:41:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28277 to 8596. [2020-09-17 01:41:02,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8596 states. [2020-09-17 01:41:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 38978 transitions. [2020-09-17 01:41:02,973 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 38978 transitions. Word has length 25 [2020-09-17 01:41:02,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:02,973 INFO L479 AbstractCegarLoop]: Abstraction has 8596 states and 38978 transitions. [2020-09-17 01:41:02,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:41:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 38978 transitions. [2020-09-17 01:41:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:02,976 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:02,976 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:03,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:41:03,178 INFO L427 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]=== [2020-09-17 01:41:03,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:03,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1970443221, now seen corresponding path program 4 times [2020-09-17 01:41:03,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:03,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517400381] [2020-09-17 01:41:03,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:03,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517400381] [2020-09-17 01:41:03,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315704438] [2020-09-17 01:41:03,259 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 [2020-09-17 01:41:03,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:41:03,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:41:03,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:41:03,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:03,362 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:03,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:03,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:41:03,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76521854] [2020-09-17 01:41:03,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:41:03,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:03,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:41:03,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:41:03,364 INFO L87 Difference]: Start difference. First operand 8596 states and 38978 transitions. Second operand 11 states. [2020-09-17 01:41:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:04,070 INFO L93 Difference]: Finished difference Result 28565 states and 109596 transitions. [2020-09-17 01:41:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:04,070 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:41:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:04,132 INFO L225 Difference]: With dead ends: 28565 [2020-09-17 01:41:04,132 INFO L226 Difference]: Without dead ends: 28538 [2020-09-17 01:41:04,133 INFO L675 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 [2020-09-17 01:41:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28538 states. [2020-09-17 01:41:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28538 to 8563. [2020-09-17 01:41:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8563 states. [2020-09-17 01:41:04,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8563 states to 8563 states and 38809 transitions. [2020-09-17 01:41:04,553 INFO L78 Accepts]: Start accepts. Automaton has 8563 states and 38809 transitions. Word has length 25 [2020-09-17 01:41:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:04,553 INFO L479 AbstractCegarLoop]: Abstraction has 8563 states and 38809 transitions. [2020-09-17 01:41:04,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:41:04,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8563 states and 38809 transitions. [2020-09-17 01:41:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:04,556 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:04,556 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:04,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-09-17 01:41:04,757 INFO L427 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]=== [2020-09-17 01:41:04,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:04,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428155, now seen corresponding path program 4 times [2020-09-17 01:41:04,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:04,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133284829] [2020-09-17 01:41:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:04,839 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:04,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133284829] [2020-09-17 01:41:04,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864656668] [2020-09-17 01:41:04,840 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 [2020-09-17 01:41:04,937 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:41:04,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:41:04,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:41:04,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:04,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:41:04,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:04,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:41:04,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744251617] [2020-09-17 01:41:04,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:41:04,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:04,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:41:04,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:41:04,963 INFO L87 Difference]: Start difference. First operand 8563 states and 38809 transitions. Second operand 11 states. [2020-09-17 01:41:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:05,856 INFO L93 Difference]: Finished difference Result 28213 states and 108237 transitions. [2020-09-17 01:41:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:05,856 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:41:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:05,917 INFO L225 Difference]: With dead ends: 28213 [2020-09-17 01:41:05,917 INFO L226 Difference]: Without dead ends: 28186 [2020-09-17 01:41:05,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:41:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28186 states. [2020-09-17 01:41:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28186 to 8421. [2020-09-17 01:41:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8421 states. [2020-09-17 01:41:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8421 states to 8421 states and 38146 transitions. [2020-09-17 01:41:06,318 INFO L78 Accepts]: Start accepts. Automaton has 8421 states and 38146 transitions. Word has length 25 [2020-09-17 01:41:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:06,319 INFO L479 AbstractCegarLoop]: Abstraction has 8421 states and 38146 transitions. [2020-09-17 01:41:06,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:41:06,319 INFO L276 IsEmpty]: Start isEmpty. Operand 8421 states and 38146 transitions. [2020-09-17 01:41:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:06,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:06,322 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:06,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:41:06,523 INFO L427 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]=== [2020-09-17 01:41:06,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:06,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1943046054, now seen corresponding path program 1 times [2020-09-17 01:41:06,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:06,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015311997] [2020-09-17 01:41:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:41:06,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015311997] [2020-09-17 01:41:06,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:06,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:41:06,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138361576] [2020-09-17 01:41:06,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:41:06,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:06,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:41:06,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:41:06,574 INFO L87 Difference]: Start difference. First operand 8421 states and 38146 transitions. Second operand 5 states. [2020-09-17 01:41:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:06,729 INFO L93 Difference]: Finished difference Result 13647 states and 59401 transitions. [2020-09-17 01:41:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:41:06,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-17 01:41:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:06,766 INFO L225 Difference]: With dead ends: 13647 [2020-09-17 01:41:06,766 INFO L226 Difference]: Without dead ends: 13615 [2020-09-17 01:41:06,766 INFO L675 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 [2020-09-17 01:41:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2020-09-17 01:41:07,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 9928. [2020-09-17 01:41:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9928 states. [2020-09-17 01:41:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9928 states to 9928 states and 44651 transitions. [2020-09-17 01:41:07,075 INFO L78 Accepts]: Start accepts. Automaton has 9928 states and 44651 transitions. Word has length 25 [2020-09-17 01:41:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:07,075 INFO L479 AbstractCegarLoop]: Abstraction has 9928 states and 44651 transitions. [2020-09-17 01:41:07,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:41:07,075 INFO L276 IsEmpty]: Start isEmpty. Operand 9928 states and 44651 transitions. [2020-09-17 01:41:07,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:07,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:07,080 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:07,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-09-17 01:41:07,080 INFO L427 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]=== [2020-09-17 01:41:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:07,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1440199159, now seen corresponding path program 5 times [2020-09-17 01:41:07,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:07,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133435222] [2020-09-17 01:41:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:07,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133435222] [2020-09-17 01:41:07,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:07,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:07,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216611686] [2020-09-17 01:41:07,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:07,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:07,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:07,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:07,167 INFO L87 Difference]: Start difference. First operand 9928 states and 44651 transitions. Second operand 9 states. [2020-09-17 01:41:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:08,175 INFO L93 Difference]: Finished difference Result 31816 states and 123346 transitions. [2020-09-17 01:41:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:08,176 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:08,285 INFO L225 Difference]: With dead ends: 31816 [2020-09-17 01:41:08,285 INFO L226 Difference]: Without dead ends: 31790 [2020-09-17 01:41:08,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:41:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31790 states. [2020-09-17 01:41:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31790 to 9766. [2020-09-17 01:41:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9766 states. [2020-09-17 01:41:08,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 43873 transitions. [2020-09-17 01:41:08,906 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 43873 transitions. Word has length 25 [2020-09-17 01:41:08,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:08,906 INFO L479 AbstractCegarLoop]: Abstraction has 9766 states and 43873 transitions. [2020-09-17 01:41:08,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:08,907 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 43873 transitions. [2020-09-17 01:41:08,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:08,909 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:08,910 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:08,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-09-17 01:41:08,910 INFO L427 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]=== [2020-09-17 01:41:08,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:08,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1440220797, now seen corresponding path program 5 times [2020-09-17 01:41:08,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:08,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196447440] [2020-09-17 01:41:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:08,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196447440] [2020-09-17 01:41:08,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:08,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:08,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006573389] [2020-09-17 01:41:08,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:08,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:08,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:08,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:08,994 INFO L87 Difference]: Start difference. First operand 9766 states and 43873 transitions. Second operand 9 states. [2020-09-17 01:41:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:09,759 INFO L93 Difference]: Finished difference Result 31277 states and 121098 transitions. [2020-09-17 01:41:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:09,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:09,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:09,829 INFO L225 Difference]: With dead ends: 31277 [2020-09-17 01:41:09,829 INFO L226 Difference]: Without dead ends: 31251 [2020-09-17 01:41:09,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:41:09,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31251 states. [2020-09-17 01:41:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31251 to 9592. [2020-09-17 01:41:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9592 states. [2020-09-17 01:41:10,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9592 states to 9592 states and 43051 transitions. [2020-09-17 01:41:10,295 INFO L78 Accepts]: Start accepts. Automaton has 9592 states and 43051 transitions. Word has length 25 [2020-09-17 01:41:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:10,296 INFO L479 AbstractCegarLoop]: Abstraction has 9592 states and 43051 transitions. [2020-09-17 01:41:10,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 9592 states and 43051 transitions. [2020-09-17 01:41:10,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:10,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:10,299 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:10,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-09-17 01:41:10,300 INFO L427 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]=== [2020-09-17 01:41:10,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:10,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1425735799, now seen corresponding path program 6 times [2020-09-17 01:41:10,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:10,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521620256] [2020-09-17 01:41:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:10,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:10,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521620256] [2020-09-17 01:41:10,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:10,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:10,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031179511] [2020-09-17 01:41:10,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:10,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:10,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:10,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:10,379 INFO L87 Difference]: Start difference. First operand 9592 states and 43051 transitions. Second operand 9 states. [2020-09-17 01:41:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:11,275 INFO L93 Difference]: Finished difference Result 30952 states and 119650 transitions. [2020-09-17 01:41:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:11,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:11,344 INFO L225 Difference]: With dead ends: 30952 [2020-09-17 01:41:11,345 INFO L226 Difference]: Without dead ends: 30919 [2020-09-17 01:41:11,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:41:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30919 states. [2020-09-17 01:41:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30919 to 9246. [2020-09-17 01:41:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9246 states. [2020-09-17 01:41:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9246 states to 9246 states and 41509 transitions. [2020-09-17 01:41:11,796 INFO L78 Accepts]: Start accepts. Automaton has 9246 states and 41509 transitions. Word has length 25 [2020-09-17 01:41:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:11,796 INFO L479 AbstractCegarLoop]: Abstraction has 9246 states and 41509 transitions. [2020-09-17 01:41:11,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 9246 states and 41509 transitions. [2020-09-17 01:41:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:11,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:11,800 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:11,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-09-17 01:41:11,800 INFO L427 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]=== [2020-09-17 01:41:11,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:11,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1425742371, now seen corresponding path program 5 times [2020-09-17 01:41:11,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:11,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374819755] [2020-09-17 01:41:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:11,879 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374819755] [2020-09-17 01:41:11,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:11,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:11,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006017476] [2020-09-17 01:41:11,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:11,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:11,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:11,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:11,880 INFO L87 Difference]: Start difference. First operand 9246 states and 41509 transitions. Second operand 9 states. [2020-09-17 01:41:12,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:12,706 INFO L93 Difference]: Finished difference Result 30541 states and 117947 transitions. [2020-09-17 01:41:12,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:12,706 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:12,774 INFO L225 Difference]: With dead ends: 30541 [2020-09-17 01:41:12,774 INFO L226 Difference]: Without dead ends: 30515 [2020-09-17 01:41:12,774 INFO L675 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 [2020-09-17 01:41:12,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30515 states. [2020-09-17 01:41:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30515 to 9136. [2020-09-17 01:41:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9136 states. [2020-09-17 01:41:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9136 states to 9136 states and 40999 transitions. [2020-09-17 01:41:13,216 INFO L78 Accepts]: Start accepts. Automaton has 9136 states and 40999 transitions. Word has length 25 [2020-09-17 01:41:13,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:13,216 INFO L479 AbstractCegarLoop]: Abstraction has 9136 states and 40999 transitions. [2020-09-17 01:41:13,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 9136 states and 40999 transitions. [2020-09-17 01:41:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:13,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:13,219 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:13,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-09-17 01:41:13,220 INFO L427 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]=== [2020-09-17 01:41:13,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:13,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1446529917, now seen corresponding path program 6 times [2020-09-17 01:41:13,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:13,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136732774] [2020-09-17 01:41:13,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:13,306 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:13,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136732774] [2020-09-17 01:41:13,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:13,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:13,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859640045] [2020-09-17 01:41:13,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:13,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:13,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:13,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:13,309 INFO L87 Difference]: Start difference. First operand 9136 states and 40999 transitions. Second operand 9 states. [2020-09-17 01:41:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:14,188 INFO L93 Difference]: Finished difference Result 30263 states and 116773 transitions. [2020-09-17 01:41:14,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:14,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:14,271 INFO L225 Difference]: With dead ends: 30263 [2020-09-17 01:41:14,271 INFO L226 Difference]: Without dead ends: 30230 [2020-09-17 01:41:14,271 INFO L675 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 [2020-09-17 01:41:14,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30230 states. [2020-09-17 01:41:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30230 to 8877. [2020-09-17 01:41:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8877 states. [2020-09-17 01:41:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8877 states to 8877 states and 39872 transitions. [2020-09-17 01:41:14,768 INFO L78 Accepts]: Start accepts. Automaton has 8877 states and 39872 transitions. Word has length 25 [2020-09-17 01:41:14,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:14,768 INFO L479 AbstractCegarLoop]: Abstraction has 8877 states and 39872 transitions. [2020-09-17 01:41:14,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:14,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8877 states and 39872 transitions. [2020-09-17 01:41:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:41:14,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:14,772 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:14,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-09-17 01:41:14,772 INFO L427 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]=== [2020-09-17 01:41:14,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:14,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1446514851, now seen corresponding path program 6 times [2020-09-17 01:41:14,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:14,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531885896] [2020-09-17 01:41:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:41:14,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531885896] [2020-09-17 01:41:14,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:14,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:41:14,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670839923] [2020-09-17 01:41:14,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:14,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:14,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:14,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:14,855 INFO L87 Difference]: Start difference. First operand 8877 states and 39872 transitions. Second operand 9 states. [2020-09-17 01:41:15,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:15,732 INFO L93 Difference]: Finished difference Result 29856 states and 115140 transitions. [2020-09-17 01:41:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:15,732 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:41:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:15,798 INFO L225 Difference]: With dead ends: 29856 [2020-09-17 01:41:15,798 INFO L226 Difference]: Without dead ends: 29823 [2020-09-17 01:41:15,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:41:15,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29823 states. [2020-09-17 01:41:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29823 to 8560. [2020-09-17 01:41:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8560 states. [2020-09-17 01:41:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 38495 transitions. [2020-09-17 01:41:16,218 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 38495 transitions. Word has length 25 [2020-09-17 01:41:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:16,219 INFO L479 AbstractCegarLoop]: Abstraction has 8560 states and 38495 transitions. [2020-09-17 01:41:16,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 38495 transitions. [2020-09-17 01:41:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-17 01:41:16,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:16,222 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:16,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-09-17 01:41:16,223 INFO L427 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]=== [2020-09-17 01:41:16,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:16,223 INFO L82 PathProgramCache]: Analyzing trace with hash -110415564, now seen corresponding path program 1 times [2020-09-17 01:41:16,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:16,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43399324] [2020-09-17 01:41:16,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:41:16,234 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:41:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-17 01:41:16,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-17 01:41:16,253 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-17 01:41:16,254 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-17 01:41:16,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2020-09-17 01:41:16,255 WARN L363 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-17 01:41:16,255 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-09-17 01:41:16,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,274 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,276 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,277 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,281 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,285 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,287 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,288 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,290 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,291 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,291 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,291 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,293 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,293 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,293 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,294 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,294 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,295 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,295 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,295 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,296 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,296 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,296 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,296 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,297 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,302 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,302 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,302 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,303 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,303 WARN L313 ript$VariableManager]: TermVariabe thr2Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,305 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,305 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,305 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,306 WARN L313 ript$VariableManager]: TermVariabe thr2Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,307 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,309 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,315 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,317 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,317 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,317 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,318 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,318 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:41:16,320 INFO L251 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-09-17 01:41:16,320 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:41:16,321 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:41:16,321 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:41:16,321 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:41:16,321 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:41:16,321 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:41:16,321 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:41:16,321 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:41:16,323 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 141 transitions, 402 flow [2020-09-17 01:41:16,323 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 160 places, 141 transitions, 402 flow [2020-09-17 01:41:16,348 INFO L129 PetriNetUnfolder]: 8/171 cut-off events. [2020-09-17 01:41:16,348 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-09-17 01:41:16,349 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. [2020-09-17 01:41:16,355 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 160 places, 141 transitions, 402 flow [2020-09-17 01:41:16,377 INFO L129 PetriNetUnfolder]: 8/171 cut-off events. [2020-09-17 01:41:16,377 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-09-17 01:41:16,379 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. [2020-09-17 01:41:16,385 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3612 [2020-09-17 01:41:16,385 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:41:18,680 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-09-17 01:41:19,044 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4226 [2020-09-17 01:41:19,044 INFO L214 etLargeBlockEncoding]: Total number of compositions: 127 [2020-09-17 01:41:19,045 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71 places, 45 transitions, 210 flow [2020-09-17 01:41:20,536 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18584 states. [2020-09-17 01:41:20,537 INFO L276 IsEmpty]: Start isEmpty. Operand 18584 states. [2020-09-17 01:41:20,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-09-17 01:41:20,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:20,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-09-17 01:41:20,537 INFO L427 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]=== [2020-09-17 01:41:20,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:20,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1291919, now seen corresponding path program 1 times [2020-09-17 01:41:20,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:20,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648463377] [2020-09-17 01:41:20,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:20,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:41:20,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648463377] [2020-09-17 01:41:20,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:20,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-17 01:41:20,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853617130] [2020-09-17 01:41:20,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:41:20,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:20,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:41:20,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:41:20,553 INFO L87 Difference]: Start difference. First operand 18584 states. Second operand 3 states. [2020-09-17 01:41:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:20,721 INFO L93 Difference]: Finished difference Result 17885 states and 92755 transitions. [2020-09-17 01:41:20,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:41:20,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-09-17 01:41:20,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:20,781 INFO L225 Difference]: With dead ends: 17885 [2020-09-17 01:41:20,781 INFO L226 Difference]: Without dead ends: 16791 [2020-09-17 01:41:20,782 INFO L675 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 [2020-09-17 01:41:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16791 states. [2020-09-17 01:41:21,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16791 to 16791. [2020-09-17 01:41:21,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16791 states. [2020-09-17 01:41:21,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 86558 transitions. [2020-09-17 01:41:21,613 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 86558 transitions. Word has length 3 [2020-09-17 01:41:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:21,613 INFO L479 AbstractCegarLoop]: Abstraction has 16791 states and 86558 transitions. [2020-09-17 01:41:21,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:41:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 86558 transitions. [2020-09-17 01:41:21,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:41:21,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:21,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:21,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2020-09-17 01:41:21,614 INFO L427 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]=== [2020-09-17 01:41:21,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:21,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1124534846, now seen corresponding path program 1 times [2020-09-17 01:41:21,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:21,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620981832] [2020-09-17 01:41:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:41:21,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620981832] [2020-09-17 01:41:21,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:21,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:41:21,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565235654] [2020-09-17 01:41:21,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:41:21,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:21,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:41:21,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:41:21,649 INFO L87 Difference]: Start difference. First operand 16791 states and 86558 transitions. Second operand 5 states. [2020-09-17 01:41:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:21,904 INFO L93 Difference]: Finished difference Result 30985 states and 150574 transitions. [2020-09-17 01:41:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:41:21,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-17 01:41:21,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:21,994 INFO L225 Difference]: With dead ends: 30985 [2020-09-17 01:41:21,994 INFO L226 Difference]: Without dead ends: 30977 [2020-09-17 01:41:21,994 INFO L675 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 [2020-09-17 01:41:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30977 states. [2020-09-17 01:41:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30977 to 19868. [2020-09-17 01:41:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19868 states. [2020-09-17 01:41:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19868 states to 19868 states and 103363 transitions. [2020-09-17 01:41:25,110 INFO L78 Accepts]: Start accepts. Automaton has 19868 states and 103363 transitions. Word has length 9 [2020-09-17 01:41:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:25,111 INFO L479 AbstractCegarLoop]: Abstraction has 19868 states and 103363 transitions. [2020-09-17 01:41:25,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:41:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 19868 states and 103363 transitions. [2020-09-17 01:41:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:41:25,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:25,111 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:25,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2020-09-17 01:41:25,112 INFO L427 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]=== [2020-09-17 01:41:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash -696216523, now seen corresponding path program 1 times [2020-09-17 01:41:25,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:25,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573237584] [2020-09-17 01:41:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:41:25,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573237584] [2020-09-17 01:41:25,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:25,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:41:25,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485536019] [2020-09-17 01:41:25,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:41:25,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:25,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:41:25,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:41:25,149 INFO L87 Difference]: Start difference. First operand 19868 states and 103363 transitions. Second operand 5 states. [2020-09-17 01:41:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:25,430 INFO L93 Difference]: Finished difference Result 36296 states and 178836 transitions. [2020-09-17 01:41:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:41:25,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-17 01:41:25,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:25,545 INFO L225 Difference]: With dead ends: 36296 [2020-09-17 01:41:25,545 INFO L226 Difference]: Without dead ends: 36280 [2020-09-17 01:41:25,546 INFO L675 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 [2020-09-17 01:41:26,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36280 states. [2020-09-17 01:41:26,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36280 to 23806. [2020-09-17 01:41:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23806 states. [2020-09-17 01:41:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23806 states to 23806 states and 125455 transitions. [2020-09-17 01:41:26,771 INFO L78 Accepts]: Start accepts. Automaton has 23806 states and 125455 transitions. Word has length 13 [2020-09-17 01:41:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:26,771 INFO L479 AbstractCegarLoop]: Abstraction has 23806 states and 125455 transitions. [2020-09-17 01:41:26,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:41:26,772 INFO L276 IsEmpty]: Start isEmpty. Operand 23806 states and 125455 transitions. [2020-09-17 01:41:26,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:41:26,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:26,772 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:26,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2020-09-17 01:41:26,773 INFO L427 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]=== [2020-09-17 01:41:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:26,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2123666531, now seen corresponding path program 1 times [2020-09-17 01:41:26,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:26,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876307448] [2020-09-17 01:41:26,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:41:26,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876307448] [2020-09-17 01:41:26,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615998474] [2020-09-17 01:41:26,831 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 [2020-09-17 01:41:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:26,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:41:26,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:26,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:41:26,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:26,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:41:26,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534811740] [2020-09-17 01:41:26,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:26,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:26,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:26,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:26,977 INFO L87 Difference]: Start difference. First operand 23806 states and 125455 transitions. Second operand 9 states. [2020-09-17 01:41:27,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:27,585 INFO L93 Difference]: Finished difference Result 56720 states and 262685 transitions. [2020-09-17 01:41:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:27,586 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-09-17 01:41:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:27,786 INFO L225 Difference]: With dead ends: 56720 [2020-09-17 01:41:27,786 INFO L226 Difference]: Without dead ends: 56704 [2020-09-17 01:41:27,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:41:28,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56704 states. [2020-09-17 01:41:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56704 to 23629. [2020-09-17 01:41:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23629 states. [2020-09-17 01:41:31,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23629 states to 23629 states and 124418 transitions. [2020-09-17 01:41:31,748 INFO L78 Accepts]: Start accepts. Automaton has 23629 states and 124418 transitions. Word has length 15 [2020-09-17 01:41:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:31,748 INFO L479 AbstractCegarLoop]: Abstraction has 23629 states and 124418 transitions. [2020-09-17 01:41:31,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 23629 states and 124418 transitions. [2020-09-17 01:41:31,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:41:31,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:31,749 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:31,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-09-17 01:41:31,950 INFO L427 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]=== [2020-09-17 01:41:31,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash 950817645, now seen corresponding path program 2 times [2020-09-17 01:41:31,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:31,951 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356566905] [2020-09-17 01:41:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:32,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-17 01:41:32,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356566905] [2020-09-17 01:41:32,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:32,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:32,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916911822] [2020-09-17 01:41:32,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:41:32,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:32,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:41:32,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:41:32,007 INFO L87 Difference]: Start difference. First operand 23629 states and 124418 transitions. Second operand 7 states. [2020-09-17 01:41:32,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:32,615 INFO L93 Difference]: Finished difference Result 58078 states and 269185 transitions. [2020-09-17 01:41:32,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:32,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-09-17 01:41:32,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:32,823 INFO L225 Difference]: With dead ends: 58078 [2020-09-17 01:41:32,824 INFO L226 Difference]: Without dead ends: 58061 [2020-09-17 01:41:32,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:41:33,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58061 states. [2020-09-17 01:41:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58061 to 23109. [2020-09-17 01:41:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23109 states. [2020-09-17 01:41:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23109 states to 23109 states and 121651 transitions. [2020-09-17 01:41:34,401 INFO L78 Accepts]: Start accepts. Automaton has 23109 states and 121651 transitions. Word has length 15 [2020-09-17 01:41:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:34,401 INFO L479 AbstractCegarLoop]: Abstraction has 23109 states and 121651 transitions. [2020-09-17 01:41:34,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:41:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand 23109 states and 121651 transitions. [2020-09-17 01:41:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 01:41:34,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:34,402 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:34,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2020-09-17 01:41:34,402 INFO L427 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]=== [2020-09-17 01:41:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:34,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2120658652, now seen corresponding path program 1 times [2020-09-17 01:41:34,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:34,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45477470] [2020-09-17 01:41:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:41:34,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45477470] [2020-09-17 01:41:34,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:34,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:41:34,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530103367] [2020-09-17 01:41:34,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:41:34,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:34,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:41:34,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:41:34,443 INFO L87 Difference]: Start difference. First operand 23109 states and 121651 transitions. Second operand 5 states. [2020-09-17 01:41:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:34,801 INFO L93 Difference]: Finished difference Result 41885 states and 209629 transitions. [2020-09-17 01:41:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:41:34,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-17 01:41:34,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:34,937 INFO L225 Difference]: With dead ends: 41885 [2020-09-17 01:41:34,938 INFO L226 Difference]: Without dead ends: 41856 [2020-09-17 01:41:34,938 INFO L675 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 [2020-09-17 01:41:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41856 states. [2020-09-17 01:41:36,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41856 to 28237. [2020-09-17 01:41:36,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28237 states. [2020-09-17 01:41:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28237 states to 28237 states and 150261 transitions. [2020-09-17 01:41:36,974 INFO L78 Accepts]: Start accepts. Automaton has 28237 states and 150261 transitions. Word has length 17 [2020-09-17 01:41:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:36,974 INFO L479 AbstractCegarLoop]: Abstraction has 28237 states and 150261 transitions. [2020-09-17 01:41:36,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:41:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 28237 states and 150261 transitions. [2020-09-17 01:41:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:41:36,975 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:36,975 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:36,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2020-09-17 01:41:36,976 INFO L427 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]=== [2020-09-17 01:41:36,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:36,976 INFO L82 PathProgramCache]: Analyzing trace with hash 269605662, now seen corresponding path program 1 times [2020-09-17 01:41:36,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:36,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101595680] [2020-09-17 01:41:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:37,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101595680] [2020-09-17 01:41:37,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557823210] [2020-09-17 01:41:37,031 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 [2020-09-17 01:41:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:37,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:41:37,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:37,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:37,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:41:37,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791309538] [2020-09-17 01:41:37,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:41:37,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:37,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:41:37,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:41:37,150 INFO L87 Difference]: Start difference. First operand 28237 states and 150261 transitions. Second operand 9 states. [2020-09-17 01:41:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:37,749 INFO L93 Difference]: Finished difference Result 66831 states and 314874 transitions. [2020-09-17 01:41:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:37,750 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-17 01:41:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:37,946 INFO L225 Difference]: With dead ends: 66831 [2020-09-17 01:41:37,947 INFO L226 Difference]: Without dead ends: 66807 [2020-09-17 01:41:37,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:41:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66807 states. [2020-09-17 01:41:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66807 to 28673. [2020-09-17 01:41:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28673 states. [2020-09-17 01:41:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28673 states to 28673 states and 152375 transitions. [2020-09-17 01:41:39,829 INFO L78 Accepts]: Start accepts. Automaton has 28673 states and 152375 transitions. Word has length 19 [2020-09-17 01:41:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:39,829 INFO L479 AbstractCegarLoop]: Abstraction has 28673 states and 152375 transitions. [2020-09-17 01:41:39,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:41:39,829 INFO L276 IsEmpty]: Start isEmpty. Operand 28673 states and 152375 transitions. [2020-09-17 01:41:39,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:41:39,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:39,830 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:40,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2020-09-17 01:41:40,031 INFO L427 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]=== [2020-09-17 01:41:40,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:40,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2138468196, now seen corresponding path program 2 times [2020-09-17 01:41:40,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:40,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368846567] [2020-09-17 01:41:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:41:40,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368846567] [2020-09-17 01:41:40,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:40,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:40,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576153261] [2020-09-17 01:41:40,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:41:40,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:41:40,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:41:40,092 INFO L87 Difference]: Start difference. First operand 28673 states and 152375 transitions. Second operand 7 states. [2020-09-17 01:41:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:40,733 INFO L93 Difference]: Finished difference Result 68538 states and 323189 transitions. [2020-09-17 01:41:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:40,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:41:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:40,945 INFO L225 Difference]: With dead ends: 68538 [2020-09-17 01:41:40,945 INFO L226 Difference]: Without dead ends: 68505 [2020-09-17 01:41:40,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:41:44,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68505 states. [2020-09-17 01:41:45,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68505 to 28061. [2020-09-17 01:41:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28061 states. [2020-09-17 01:41:45,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28061 states to 28061 states and 149307 transitions. [2020-09-17 01:41:45,410 INFO L78 Accepts]: Start accepts. Automaton has 28061 states and 149307 transitions. Word has length 19 [2020-09-17 01:41:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:45,410 INFO L479 AbstractCegarLoop]: Abstraction has 28061 states and 149307 transitions. [2020-09-17 01:41:45,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:41:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand 28061 states and 149307 transitions. [2020-09-17 01:41:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:41:45,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:45,411 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:45,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2020-09-17 01:41:45,411 INFO L427 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]=== [2020-09-17 01:41:45,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:45,411 INFO L82 PathProgramCache]: Analyzing trace with hash -2138444729, now seen corresponding path program 1 times [2020-09-17 01:41:45,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:45,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604888730] [2020-09-17 01:41:45,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:41:45,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604888730] [2020-09-17 01:41:45,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:45,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:45,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797194044] [2020-09-17 01:41:45,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:41:45,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:45,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:41:45,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:41:45,468 INFO L87 Difference]: Start difference. First operand 28061 states and 149307 transitions. Second operand 7 states. [2020-09-17 01:41:46,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:46,075 INFO L93 Difference]: Finished difference Result 69070 states and 326154 transitions. [2020-09-17 01:41:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:46,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:41:46,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:46,290 INFO L225 Difference]: With dead ends: 69070 [2020-09-17 01:41:46,290 INFO L226 Difference]: Without dead ends: 69037 [2020-09-17 01:41:46,291 INFO L675 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 [2020-09-17 01:41:47,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69037 states. [2020-09-17 01:41:48,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69037 to 28938. [2020-09-17 01:41:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28938 states. [2020-09-17 01:41:48,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28938 states to 28938 states and 153909 transitions. [2020-09-17 01:41:48,663 INFO L78 Accepts]: Start accepts. Automaton has 28938 states and 153909 transitions. Word has length 19 [2020-09-17 01:41:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:48,664 INFO L479 AbstractCegarLoop]: Abstraction has 28938 states and 153909 transitions. [2020-09-17 01:41:48,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:41:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 28938 states and 153909 transitions. [2020-09-17 01:41:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-17 01:41:48,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:48,665 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:48,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2020-09-17 01:41:48,665 INFO L427 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]=== [2020-09-17 01:41:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:48,665 INFO L82 PathProgramCache]: Analyzing trace with hash -2117255609, now seen corresponding path program 2 times [2020-09-17 01:41:48,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:48,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413668777] [2020-09-17 01:41:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:48,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:41:48,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413668777] [2020-09-17 01:41:48,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:41:48,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:41:48,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020806720] [2020-09-17 01:41:48,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:41:48,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:48,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:41:48,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:41:48,725 INFO L87 Difference]: Start difference. First operand 28938 states and 153909 transitions. Second operand 7 states. [2020-09-17 01:41:49,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:49,341 INFO L93 Difference]: Finished difference Result 70096 states and 331298 transitions. [2020-09-17 01:41:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:41:49,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-09-17 01:41:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:49,543 INFO L225 Difference]: With dead ends: 70096 [2020-09-17 01:41:49,543 INFO L226 Difference]: Without dead ends: 70063 [2020-09-17 01:41:49,544 INFO L675 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 [2020-09-17 01:41:50,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70063 states. [2020-09-17 01:41:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70063 to 29094. [2020-09-17 01:41:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29094 states. [2020-09-17 01:41:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29094 states to 29094 states and 154883 transitions. [2020-09-17 01:41:53,865 INFO L78 Accepts]: Start accepts. Automaton has 29094 states and 154883 transitions. Word has length 19 [2020-09-17 01:41:53,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:53,866 INFO L479 AbstractCegarLoop]: Abstraction has 29094 states and 154883 transitions. [2020-09-17 01:41:53,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:41:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 29094 states and 154883 transitions. [2020-09-17 01:41:53,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:41:53,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:53,867 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:53,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2020-09-17 01:41:53,867 INFO L427 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]=== [2020-09-17 01:41:53,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:53,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1393024961, now seen corresponding path program 1 times [2020-09-17 01:41:53,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:53,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962744144] [2020-09-17 01:41:53,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:53,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962744144] [2020-09-17 01:41:53,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139471722] [2020-09-17 01:41:53,949 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 [2020-09-17 01:41:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:54,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:41:54,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:54,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:54,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:41:54,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207673379] [2020-09-17 01:41:54,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:41:54,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:54,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:41:54,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:41:54,090 INFO L87 Difference]: Start difference. First operand 29094 states and 154883 transitions. Second operand 11 states. [2020-09-17 01:41:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:41:55,315 INFO L93 Difference]: Finished difference Result 100731 states and 448596 transitions. [2020-09-17 01:41:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:41:55,316 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:41:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:41:55,639 INFO L225 Difference]: With dead ends: 100731 [2020-09-17 01:41:55,640 INFO L226 Difference]: Without dead ends: 100715 [2020-09-17 01:41:55,640 INFO L675 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 [2020-09-17 01:41:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100715 states. [2020-09-17 01:41:58,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100715 to 28723. [2020-09-17 01:41:58,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28723 states. [2020-09-17 01:41:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28723 states to 28723 states and 152772 transitions. [2020-09-17 01:41:58,716 INFO L78 Accepts]: Start accepts. Automaton has 28723 states and 152772 transitions. Word has length 21 [2020-09-17 01:41:58,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:41:58,717 INFO L479 AbstractCegarLoop]: Abstraction has 28723 states and 152772 transitions. [2020-09-17 01:41:58,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:41:58,717 INFO L276 IsEmpty]: Start isEmpty. Operand 28723 states and 152772 transitions. [2020-09-17 01:41:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:41:58,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:41:58,718 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:41:58,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:41:58,919 INFO L427 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]=== [2020-09-17 01:41:58,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:41:58,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1414214081, now seen corresponding path program 2 times [2020-09-17 01:41:58,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:41:58,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230756574] [2020-09-17 01:41:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:41:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:41:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:59,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230756574] [2020-09-17 01:41:59,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685725964] [2020-09-17 01:41:59,001 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 [2020-09-17 01:41:59,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:41:59,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:41:59,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:41:59,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:41:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-17 01:41:59,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:41:59,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:41:59,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714325471] [2020-09-17 01:41:59,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:41:59,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:41:59,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:41:59,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:41:59,150 INFO L87 Difference]: Start difference. First operand 28723 states and 152772 transitions. Second operand 11 states. [2020-09-17 01:42:00,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:00,464 INFO L93 Difference]: Finished difference Result 99884 states and 444368 transitions. [2020-09-17 01:42:00,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:00,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-09-17 01:42:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:00,791 INFO L225 Difference]: With dead ends: 99884 [2020-09-17 01:42:00,792 INFO L226 Difference]: Without dead ends: 99863 [2020-09-17 01:42:00,792 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:42:02,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99863 states. [2020-09-17 01:42:03,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99863 to 28343. [2020-09-17 01:42:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28343 states. [2020-09-17 01:42:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28343 states to 28343 states and 150639 transitions. [2020-09-17 01:42:03,940 INFO L78 Accepts]: Start accepts. Automaton has 28343 states and 150639 transitions. Word has length 21 [2020-09-17 01:42:03,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:03,940 INFO L479 AbstractCegarLoop]: Abstraction has 28343 states and 150639 transitions. [2020-09-17 01:42:03,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:42:03,940 INFO L276 IsEmpty]: Start isEmpty. Operand 28343 states and 150639 transitions. [2020-09-17 01:42:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:42:03,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:03,941 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:04,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-09-17 01:42:04,142 INFO L427 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]=== [2020-09-17 01:42:04,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:04,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2073547329, now seen corresponding path program 3 times [2020-09-17 01:42:04,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:04,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829920160] [2020-09-17 01:42:04,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:04,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829920160] [2020-09-17 01:42:04,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:04,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:42:04,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505643625] [2020-09-17 01:42:04,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:04,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:04,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:04,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:04,228 INFO L87 Difference]: Start difference. First operand 28343 states and 150639 transitions. Second operand 9 states. [2020-09-17 01:42:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:05,535 INFO L93 Difference]: Finished difference Result 100063 states and 445271 transitions. [2020-09-17 01:42:05,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:05,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:42:05,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:06,468 INFO L225 Difference]: With dead ends: 100063 [2020-09-17 01:42:06,468 INFO L226 Difference]: Without dead ends: 100047 [2020-09-17 01:42:06,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:42:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100047 states. [2020-09-17 01:42:08,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100047 to 27662. [2020-09-17 01:42:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27662 states. [2020-09-17 01:42:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27662 states to 27662 states and 147100 transitions. [2020-09-17 01:42:08,694 INFO L78 Accepts]: Start accepts. Automaton has 27662 states and 147100 transitions. Word has length 21 [2020-09-17 01:42:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:08,694 INFO L479 AbstractCegarLoop]: Abstraction has 27662 states and 147100 transitions. [2020-09-17 01:42:08,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 27662 states and 147100 transitions. [2020-09-17 01:42:08,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:42:08,695 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:08,695 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:08,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2020-09-17 01:42:08,696 INFO L427 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]=== [2020-09-17 01:42:08,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:08,696 INFO L82 PathProgramCache]: Analyzing trace with hash -2051019009, now seen corresponding path program 4 times [2020-09-17 01:42:08,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:08,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242459867] [2020-09-17 01:42:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:08,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242459867] [2020-09-17 01:42:08,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:08,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:42:08,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34045955] [2020-09-17 01:42:08,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:08,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:08,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:08,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:08,779 INFO L87 Difference]: Start difference. First operand 27662 states and 147100 transitions. Second operand 9 states. [2020-09-17 01:42:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:10,440 INFO L93 Difference]: Finished difference Result 99531 states and 442783 transitions. [2020-09-17 01:42:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:10,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:42:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:10,772 INFO L225 Difference]: With dead ends: 99531 [2020-09-17 01:42:10,773 INFO L226 Difference]: Without dead ends: 99510 [2020-09-17 01:42:10,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:42:11,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99510 states. [2020-09-17 01:42:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99510 to 27286. [2020-09-17 01:42:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27286 states. [2020-09-17 01:42:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27286 states to 27286 states and 144979 transitions. [2020-09-17 01:42:13,057 INFO L78 Accepts]: Start accepts. Automaton has 27286 states and 144979 transitions. Word has length 21 [2020-09-17 01:42:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:13,057 INFO L479 AbstractCegarLoop]: Abstraction has 27286 states and 144979 transitions. [2020-09-17 01:42:13,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27286 states and 144979 transitions. [2020-09-17 01:42:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:42:13,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:13,058 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:13,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2020-09-17 01:42:13,059 INFO L427 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]=== [2020-09-17 01:42:13,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:13,059 INFO L82 PathProgramCache]: Analyzing trace with hash 102150333, now seen corresponding path program 1 times [2020-09-17 01:42:13,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:13,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106333990] [2020-09-17 01:42:13,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:13,105 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:42:13,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106333990] [2020-09-17 01:42:13,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:13,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:42:13,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661608308] [2020-09-17 01:42:13,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:42:13,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:13,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:42:13,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:42:13,107 INFO L87 Difference]: Start difference. First operand 27286 states and 144979 transitions. Second operand 5 states. [2020-09-17 01:42:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:13,758 INFO L93 Difference]: Finished difference Result 49004 states and 248721 transitions. [2020-09-17 01:42:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:42:13,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-09-17 01:42:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:13,911 INFO L225 Difference]: With dead ends: 49004 [2020-09-17 01:42:13,912 INFO L226 Difference]: Without dead ends: 48958 [2020-09-17 01:42:13,912 INFO L675 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 [2020-09-17 01:42:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48958 states. [2020-09-17 01:42:15,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48958 to 33985. [2020-09-17 01:42:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33985 states. [2020-09-17 01:42:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33985 states to 33985 states and 181777 transitions. [2020-09-17 01:42:15,491 INFO L78 Accepts]: Start accepts. Automaton has 33985 states and 181777 transitions. Word has length 21 [2020-09-17 01:42:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:15,492 INFO L479 AbstractCegarLoop]: Abstraction has 33985 states and 181777 transitions. [2020-09-17 01:42:15,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:42:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 33985 states and 181777 transitions. [2020-09-17 01:42:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:42:15,493 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:15,493 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:15,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2020-09-17 01:42:15,493 INFO L427 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]=== [2020-09-17 01:42:15,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:15,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1130516927, now seen corresponding path program 5 times [2020-09-17 01:42:15,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:15,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812896627] [2020-09-17 01:42:15,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:15,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812896627] [2020-09-17 01:42:15,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:15,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:42:15,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651472235] [2020-09-17 01:42:15,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:15,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:15,577 INFO L87 Difference]: Start difference. First operand 33985 states and 181777 transitions. Second operand 9 states. [2020-09-17 01:42:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:17,482 INFO L93 Difference]: Finished difference Result 115592 states and 523747 transitions. [2020-09-17 01:42:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:17,482 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:42:17,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:17,840 INFO L225 Difference]: With dead ends: 115592 [2020-09-17 01:42:17,840 INFO L226 Difference]: Without dead ends: 115567 [2020-09-17 01:42:17,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:42:19,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115567 states. [2020-09-17 01:42:20,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115567 to 33074. [2020-09-17 01:42:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33074 states. [2020-09-17 01:42:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33074 states to 33074 states and 176935 transitions. [2020-09-17 01:42:24,368 INFO L78 Accepts]: Start accepts. Automaton has 33074 states and 176935 transitions. Word has length 21 [2020-09-17 01:42:24,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:24,369 INFO L479 AbstractCegarLoop]: Abstraction has 33074 states and 176935 transitions. [2020-09-17 01:42:24,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:24,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33074 states and 176935 transitions. [2020-09-17 01:42:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-17 01:42:24,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:24,371 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:24,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2020-09-17 01:42:24,371 INFO L427 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]=== [2020-09-17 01:42:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1131856127, now seen corresponding path program 6 times [2020-09-17 01:42:24,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:24,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683014928] [2020-09-17 01:42:24,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:24,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683014928] [2020-09-17 01:42:24,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:24,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:42:24,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762069237] [2020-09-17 01:42:24,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:24,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:24,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:24,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:24,455 INFO L87 Difference]: Start difference. First operand 33074 states and 176935 transitions. Second operand 9 states. [2020-09-17 01:42:25,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:25,803 INFO L93 Difference]: Finished difference Result 114402 states and 517732 transitions. [2020-09-17 01:42:25,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:25,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-09-17 01:42:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:26,193 INFO L225 Difference]: With dead ends: 114402 [2020-09-17 01:42:26,193 INFO L226 Difference]: Without dead ends: 114371 [2020-09-17 01:42:26,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:42:27,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114371 states. [2020-09-17 01:42:29,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114371 to 31960. [2020-09-17 01:42:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31960 states. [2020-09-17 01:42:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31960 states to 31960 states and 171209 transitions. [2020-09-17 01:42:29,361 INFO L78 Accepts]: Start accepts. Automaton has 31960 states and 171209 transitions. Word has length 21 [2020-09-17 01:42:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:29,362 INFO L479 AbstractCegarLoop]: Abstraction has 31960 states and 171209 transitions. [2020-09-17 01:42:29,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 31960 states and 171209 transitions. [2020-09-17 01:42:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:29,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:29,363 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:29,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2020-09-17 01:42:29,364 INFO L427 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]=== [2020-09-17 01:42:29,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:29,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1106577557, now seen corresponding path program 1 times [2020-09-17 01:42:29,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:29,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141210494] [2020-09-17 01:42:29,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:29,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141210494] [2020-09-17 01:42:29,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624662897] [2020-09-17 01:42:29,427 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 [2020-09-17 01:42:29,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:29,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:42:29,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:42:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:29,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:42:29,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:42:29,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621745230] [2020-09-17 01:42:29,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:29,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:29,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:29,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:29,570 INFO L87 Difference]: Start difference. First operand 31960 states and 171209 transitions. Second operand 9 states. [2020-09-17 01:42:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:30,298 INFO L93 Difference]: Finished difference Result 75380 states and 361389 transitions. [2020-09-17 01:42:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:30,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-17 01:42:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:30,531 INFO L225 Difference]: With dead ends: 75380 [2020-09-17 01:42:30,531 INFO L226 Difference]: Without dead ends: 75344 [2020-09-17 01:42:30,531 INFO L675 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 [2020-09-17 01:42:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75344 states. [2020-09-17 01:42:33,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75344 to 32974. [2020-09-17 01:42:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32974 states. [2020-09-17 01:42:33,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32974 states to 32974 states and 176363 transitions. [2020-09-17 01:42:33,219 INFO L78 Accepts]: Start accepts. Automaton has 32974 states and 176363 transitions. Word has length 23 [2020-09-17 01:42:33,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:33,219 INFO L479 AbstractCegarLoop]: Abstraction has 32974 states and 176363 transitions. [2020-09-17 01:42:33,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:33,220 INFO L276 IsEmpty]: Start isEmpty. Operand 32974 states and 176363 transitions. [2020-09-17 01:42:33,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:33,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:33,221 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:33,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:42:33,422 INFO L427 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]=== [2020-09-17 01:42:33,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:33,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1026706248, now seen corresponding path program 1 times [2020-09-17 01:42:33,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:33,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687040732] [2020-09-17 01:42:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:33,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687040732] [2020-09-17 01:42:33,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907275539] [2020-09-17 01:42:33,483 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 [2020-09-17 01:42:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:33,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:42:33,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:42:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:42:33,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:42:33,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:42:33,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457403470] [2020-09-17 01:42:33,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:42:33,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:33,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:42:33,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:42:33,630 INFO L87 Difference]: Start difference. First operand 32974 states and 176363 transitions. Second operand 9 states. [2020-09-17 01:42:34,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:34,356 INFO L93 Difference]: Finished difference Result 79463 states and 381713 transitions. [2020-09-17 01:42:34,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:34,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-17 01:42:34,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:34,629 INFO L225 Difference]: With dead ends: 79463 [2020-09-17 01:42:34,629 INFO L226 Difference]: Without dead ends: 79421 [2020-09-17 01:42:34,630 INFO L675 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 [2020-09-17 01:42:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79421 states. [2020-09-17 01:42:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79421 to 33977. [2020-09-17 01:42:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33977 states. [2020-09-17 01:42:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33977 states to 33977 states and 181698 transitions. [2020-09-17 01:42:37,347 INFO L78 Accepts]: Start accepts. Automaton has 33977 states and 181698 transitions. Word has length 23 [2020-09-17 01:42:37,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:37,347 INFO L479 AbstractCegarLoop]: Abstraction has 33977 states and 181698 transitions. [2020-09-17 01:42:37,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:42:37,348 INFO L276 IsEmpty]: Start isEmpty. Operand 33977 states and 181698 transitions. [2020-09-17 01:42:37,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:37,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:37,349 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:37,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,37 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:42:37,551 INFO L427 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]=== [2020-09-17 01:42:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:37,552 INFO L82 PathProgramCache]: Analyzing trace with hash -617779723, now seen corresponding path program 2 times [2020-09-17 01:42:37,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:37,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848199399] [2020-09-17 01:42:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:37,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:42:37,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848199399] [2020-09-17 01:42:37,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:37,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:42:37,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870147161] [2020-09-17 01:42:37,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:42:37,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:37,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:42:37,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:42:37,616 INFO L87 Difference]: Start difference. First operand 33977 states and 181698 transitions. Second operand 7 states. [2020-09-17 01:42:38,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:38,357 INFO L93 Difference]: Finished difference Result 80867 states and 388763 transitions. [2020-09-17 01:42:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:38,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:42:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:38,610 INFO L225 Difference]: With dead ends: 80867 [2020-09-17 01:42:38,610 INFO L226 Difference]: Without dead ends: 80812 [2020-09-17 01:42:38,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:42:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80812 states. [2020-09-17 01:42:41,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80812 to 34223. [2020-09-17 01:42:41,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34223 states. [2020-09-17 01:42:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34223 states to 34223 states and 183033 transitions. [2020-09-17 01:42:41,329 INFO L78 Accepts]: Start accepts. Automaton has 34223 states and 183033 transitions. Word has length 23 [2020-09-17 01:42:41,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:41,329 INFO L479 AbstractCegarLoop]: Abstraction has 34223 states and 183033 transitions. [2020-09-17 01:42:41,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:42:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 34223 states and 183033 transitions. [2020-09-17 01:42:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:41,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:41,331 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:41,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2020-09-17 01:42:41,332 INFO L427 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]=== [2020-09-17 01:42:41,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:41,332 INFO L82 PathProgramCache]: Analyzing trace with hash -617778328, now seen corresponding path program 2 times [2020-09-17 01:42:41,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:41,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474478951] [2020-09-17 01:42:41,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:41,398 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:42:41,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474478951] [2020-09-17 01:42:41,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:41,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:42:41,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201012587] [2020-09-17 01:42:41,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:42:41,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:41,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:42:41,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:42:41,401 INFO L87 Difference]: Start difference. First operand 34223 states and 183033 transitions. Second operand 7 states. [2020-09-17 01:42:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:42,085 INFO L93 Difference]: Finished difference Result 80887 states and 388540 transitions. [2020-09-17 01:42:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:42,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:42:42,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:42,335 INFO L225 Difference]: With dead ends: 80887 [2020-09-17 01:42:42,335 INFO L226 Difference]: Without dead ends: 80832 [2020-09-17 01:42:42,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:42:43,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80832 states. [2020-09-17 01:42:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80832 to 34508. [2020-09-17 01:42:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34508 states. [2020-09-17 01:42:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34508 states to 34508 states and 184670 transitions. [2020-09-17 01:42:45,217 INFO L78 Accepts]: Start accepts. Automaton has 34508 states and 184670 transitions. Word has length 23 [2020-09-17 01:42:45,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:45,217 INFO L479 AbstractCegarLoop]: Abstraction has 34508 states and 184670 transitions. [2020-09-17 01:42:45,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:42:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34508 states and 184670 transitions. [2020-09-17 01:42:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:45,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:45,219 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:45,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2020-09-17 01:42:45,219 INFO L427 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]=== [2020-09-17 01:42:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash -617756256, now seen corresponding path program 1 times [2020-09-17 01:42:45,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:45,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992942844] [2020-09-17 01:42:45,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:42:45,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992942844] [2020-09-17 01:42:45,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:45,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:42:45,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920111293] [2020-09-17 01:42:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:42:45,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:45,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:42:45,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:42:45,284 INFO L87 Difference]: Start difference. First operand 34508 states and 184670 transitions. Second operand 7 states. [2020-09-17 01:42:46,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:46,041 INFO L93 Difference]: Finished difference Result 83313 states and 401031 transitions. [2020-09-17 01:42:46,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:46,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:42:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:46,303 INFO L225 Difference]: With dead ends: 83313 [2020-09-17 01:42:46,303 INFO L226 Difference]: Without dead ends: 83258 [2020-09-17 01:42:46,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:42:47,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83258 states. [2020-09-17 01:42:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83258 to 36258. [2020-09-17 01:42:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36258 states. [2020-09-17 01:42:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36258 states to 36258 states and 193887 transitions. [2020-09-17 01:42:49,264 INFO L78 Accepts]: Start accepts. Automaton has 36258 states and 193887 transitions. Word has length 23 [2020-09-17 01:42:49,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:49,264 INFO L479 AbstractCegarLoop]: Abstraction has 36258 states and 193887 transitions. [2020-09-17 01:42:49,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:42:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 36258 states and 193887 transitions. [2020-09-17 01:42:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-17 01:42:49,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:49,266 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:49,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2020-09-17 01:42:49,266 INFO L427 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]=== [2020-09-17 01:42:49,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:49,267 INFO L82 PathProgramCache]: Analyzing trace with hash -581716896, now seen corresponding path program 2 times [2020-09-17 01:42:49,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:49,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966723665] [2020-09-17 01:42:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:42:49,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966723665] [2020-09-17 01:42:49,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:42:49,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:42:49,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681975636] [2020-09-17 01:42:49,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:42:49,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:49,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:42:49,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:42:49,329 INFO L87 Difference]: Start difference. First operand 36258 states and 193887 transitions. Second operand 7 states. [2020-09-17 01:42:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:50,093 INFO L93 Difference]: Finished difference Result 84364 states and 406246 transitions. [2020-09-17 01:42:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:42:50,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-17 01:42:50,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:50,375 INFO L225 Difference]: With dead ends: 84364 [2020-09-17 01:42:50,376 INFO L226 Difference]: Without dead ends: 84309 [2020-09-17 01:42:50,376 INFO L675 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 [2020-09-17 01:42:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84309 states. [2020-09-17 01:42:53,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84309 to 37062. [2020-09-17 01:42:53,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37062 states. [2020-09-17 01:42:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37062 states to 37062 states and 198528 transitions. [2020-09-17 01:42:53,454 INFO L78 Accepts]: Start accepts. Automaton has 37062 states and 198528 transitions. Word has length 23 [2020-09-17 01:42:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:53,454 INFO L479 AbstractCegarLoop]: Abstraction has 37062 states and 198528 transitions. [2020-09-17 01:42:53,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:42:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 37062 states and 198528 transitions. [2020-09-17 01:42:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:42:53,458 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:53,458 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:53,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2020-09-17 01:42:53,459 INFO L427 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]=== [2020-09-17 01:42:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:53,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1745706838, now seen corresponding path program 1 times [2020-09-17 01:42:53,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:53,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063583434] [2020-09-17 01:42:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:53,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063583434] [2020-09-17 01:42:53,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478133387] [2020-09-17 01:42:53,551 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 [2020-09-17 01:42:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:53,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:42:53,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:42:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:53,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:42:53,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:42:53,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912851560] [2020-09-17 01:42:53,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:42:53,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:53,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:42:53,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:42:53,705 INFO L87 Difference]: Start difference. First operand 37062 states and 198528 transitions. Second operand 11 states. [2020-09-17 01:42:55,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:42:55,160 INFO L93 Difference]: Finished difference Result 122892 states and 561130 transitions. [2020-09-17 01:42:55,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:42:55,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:42:55,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:42:55,575 INFO L225 Difference]: With dead ends: 122892 [2020-09-17 01:42:55,575 INFO L226 Difference]: Without dead ends: 122862 [2020-09-17 01:42:55,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:42:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122862 states. [2020-09-17 01:42:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122862 to 36735. [2020-09-17 01:42:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36735 states. [2020-09-17 01:42:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36735 states to 36735 states and 196486 transitions. [2020-09-17 01:42:59,139 INFO L78 Accepts]: Start accepts. Automaton has 36735 states and 196486 transitions. Word has length 25 [2020-09-17 01:42:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:42:59,139 INFO L479 AbstractCegarLoop]: Abstraction has 36735 states and 196486 transitions. [2020-09-17 01:42:59,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:42:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 36735 states and 196486 transitions. [2020-09-17 01:42:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:42:59,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:42:59,143 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:42:59,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2020-09-17 01:42:59,343 INFO L427 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]=== [2020-09-17 01:42:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:42:59,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1730856598, now seen corresponding path program 2 times [2020-09-17 01:42:59,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:42:59,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147977215] [2020-09-17 01:42:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:42:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:42:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:59,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147977215] [2020-09-17 01:42:59,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618067865] [2020-09-17 01:42:59,424 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 [2020-09-17 01:42:59,548 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:42:59,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:42:59,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:42:59,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:42:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:42:59,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:42:59,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:42:59,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795796708] [2020-09-17 01:42:59,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:42:59,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:42:59,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:42:59,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:42:59,575 INFO L87 Difference]: Start difference. First operand 36735 states and 196486 transitions. Second operand 11 states. [2020-09-17 01:43:01,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:01,076 INFO L93 Difference]: Finished difference Result 121506 states and 554103 transitions. [2020-09-17 01:43:01,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:01,077 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:02,334 INFO L225 Difference]: With dead ends: 121506 [2020-09-17 01:43:02,334 INFO L226 Difference]: Without dead ends: 121473 [2020-09-17 01:43:02,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:03,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121473 states. [2020-09-17 01:43:04,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121473 to 36666. [2020-09-17 01:43:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36666 states. [2020-09-17 01:43:05,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36666 states to 36666 states and 195964 transitions. [2020-09-17 01:43:05,173 INFO L78 Accepts]: Start accepts. Automaton has 36666 states and 195964 transitions. Word has length 25 [2020-09-17 01:43:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:05,173 INFO L479 AbstractCegarLoop]: Abstraction has 36666 states and 195964 transitions. [2020-09-17 01:43:05,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 36666 states and 195964 transitions. [2020-09-17 01:43:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:05,177 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:05,177 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:05,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,39 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:43:05,378 INFO L427 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]=== [2020-09-17 01:43:05,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:05,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1730878670, now seen corresponding path program 1 times [2020-09-17 01:43:05,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:05,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582559213] [2020-09-17 01:43:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:43:05,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582559213] [2020-09-17 01:43:05,469 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256980965] [2020-09-17 01:43:05,469 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 [2020-09-17 01:43:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:05,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:05,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:43:05,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:05,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:05,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201766228] [2020-09-17 01:43:05,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:05,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:05,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:05,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:05,620 INFO L87 Difference]: Start difference. First operand 36666 states and 195964 transitions. Second operand 11 states. [2020-09-17 01:43:07,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:07,349 INFO L93 Difference]: Finished difference Result 120500 states and 549397 transitions. [2020-09-17 01:43:07,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:07,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:07,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:07,726 INFO L225 Difference]: With dead ends: 120500 [2020-09-17 01:43:07,726 INFO L226 Difference]: Without dead ends: 120470 [2020-09-17 01:43:07,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120470 states. [2020-09-17 01:43:13,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120470 to 36343. [2020-09-17 01:43:13,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36343 states. [2020-09-17 01:43:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36343 states to 36343 states and 194056 transitions. [2020-09-17 01:43:13,693 INFO L78 Accepts]: Start accepts. Automaton has 36343 states and 194056 transitions. Word has length 25 [2020-09-17 01:43:13,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:13,693 INFO L479 AbstractCegarLoop]: Abstraction has 36343 states and 194056 transitions. [2020-09-17 01:43:13,694 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 36343 states and 194056 transitions. [2020-09-17 01:43:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:13,696 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:13,697 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:13,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-09-17 01:43:13,897 INFO L427 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]=== [2020-09-17 01:43:13,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:13,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1766918030, now seen corresponding path program 2 times [2020-09-17 01:43:13,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:13,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350180313] [2020-09-17 01:43:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:43:13,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350180313] [2020-09-17 01:43:13,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045245391] [2020-09-17 01:43:13,987 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 [2020-09-17 01:43:14,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:43:14,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:43:14,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:14,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:43:14,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:14,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:14,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981235550] [2020-09-17 01:43:14,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:14,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:14,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:14,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:14,136 INFO L87 Difference]: Start difference. First operand 36343 states and 194056 transitions. Second operand 11 states. [2020-09-17 01:43:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:15,635 INFO L93 Difference]: Finished difference Result 119731 states and 545560 transitions. [2020-09-17 01:43:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:15,636 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:16,061 INFO L225 Difference]: With dead ends: 119731 [2020-09-17 01:43:16,061 INFO L226 Difference]: Without dead ends: 119698 [2020-09-17 01:43:16,062 INFO L675 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 [2020-09-17 01:43:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119698 states. [2020-09-17 01:43:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119698 to 36040. [2020-09-17 01:43:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36040 states. [2020-09-17 01:43:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36040 states to 36040 states and 192287 transitions. [2020-09-17 01:43:19,579 INFO L78 Accepts]: Start accepts. Automaton has 36040 states and 192287 transitions. Word has length 25 [2020-09-17 01:43:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:19,579 INFO L479 AbstractCegarLoop]: Abstraction has 36040 states and 192287 transitions. [2020-09-17 01:43:19,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 36040 states and 192287 transitions. [2020-09-17 01:43:19,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:19,582 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:19,582 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:19,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:43:19,783 INFO L427 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]=== [2020-09-17 01:43:19,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:19,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1849107924, now seen corresponding path program 3 times [2020-09-17 01:43:19,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:19,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515629714] [2020-09-17 01:43:19,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:19,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:19,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515629714] [2020-09-17 01:43:19,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915174790] [2020-09-17 01:43:19,868 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 [2020-09-17 01:43:19,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:43:19,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:43:19,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:19,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:20,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:20,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:20,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016594600] [2020-09-17 01:43:20,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:20,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:20,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:20,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:20,016 INFO L87 Difference]: Start difference. First operand 36040 states and 192287 transitions. Second operand 11 states. [2020-09-17 01:43:22,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:22,162 INFO L93 Difference]: Finished difference Result 119762 states and 545615 transitions. [2020-09-17 01:43:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:22,162 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:22,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:22,588 INFO L225 Difference]: With dead ends: 119762 [2020-09-17 01:43:22,588 INFO L226 Difference]: Without dead ends: 119732 [2020-09-17 01:43:22,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119732 states. [2020-09-17 01:43:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119732 to 35475. [2020-09-17 01:43:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35475 states. [2020-09-17 01:43:28,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35475 states to 35475 states and 189246 transitions. [2020-09-17 01:43:28,996 INFO L78 Accepts]: Start accepts. Automaton has 35475 states and 189246 transitions. Word has length 25 [2020-09-17 01:43:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:28,996 INFO L479 AbstractCegarLoop]: Abstraction has 35475 states and 189246 transitions. [2020-09-17 01:43:28,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 35475 states and 189246 transitions. [2020-09-17 01:43:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:28,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:28,999 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:29,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-09-17 01:43:29,200 INFO L427 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]=== [2020-09-17 01:43:29,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1177775680, now seen corresponding path program 4 times [2020-09-17 01:43:29,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:29,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151033814] [2020-09-17 01:43:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:29,285 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:29,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151033814] [2020-09-17 01:43:29,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756061898] [2020-09-17 01:43:29,286 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 [2020-09-17 01:43:29,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:43:29,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:43:29,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:29,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:29,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:29,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:29,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456612193] [2020-09-17 01:43:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:29,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:29,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:29,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:29,431 INFO L87 Difference]: Start difference. First operand 35475 states and 189246 transitions. Second operand 11 states. [2020-09-17 01:43:30,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:30,897 INFO L93 Difference]: Finished difference Result 120788 states and 550630 transitions. [2020-09-17 01:43:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:30,898 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:30,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:31,356 INFO L225 Difference]: With dead ends: 120788 [2020-09-17 01:43:31,357 INFO L226 Difference]: Without dead ends: 120755 [2020-09-17 01:43:31,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:32,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120755 states. [2020-09-17 01:43:34,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120755 to 35406. [2020-09-17 01:43:34,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35406 states. [2020-09-17 01:43:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35406 states to 35406 states and 188724 transitions. [2020-09-17 01:43:35,039 INFO L78 Accepts]: Start accepts. Automaton has 35406 states and 188724 transitions. Word has length 25 [2020-09-17 01:43:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:35,039 INFO L479 AbstractCegarLoop]: Abstraction has 35406 states and 188724 transitions. [2020-09-17 01:43:35,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 35406 states and 188724 transitions. [2020-09-17 01:43:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:35,042 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:35,042 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:35,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-09-17 01:43:35,249 INFO L427 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]=== [2020-09-17 01:43:35,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:35,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1177752213, now seen corresponding path program 1 times [2020-09-17 01:43:35,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:35,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608302897] [2020-09-17 01:43:35,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:35,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608302897] [2020-09-17 01:43:35,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566082835] [2020-09-17 01:43:35,339 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 [2020-09-17 01:43:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:35,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:35,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:35,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:35,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:35,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:35,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228438422] [2020-09-17 01:43:35,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:35,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:35,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:35,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:35,495 INFO L87 Difference]: Start difference. First operand 35406 states and 188724 transitions. Second operand 11 states. [2020-09-17 01:43:37,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:37,024 INFO L93 Difference]: Finished difference Result 120291 states and 549128 transitions. [2020-09-17 01:43:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:37,024 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:37,425 INFO L225 Difference]: With dead ends: 120291 [2020-09-17 01:43:37,426 INFO L226 Difference]: Without dead ends: 120261 [2020-09-17 01:43:37,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120261 states. [2020-09-17 01:43:40,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120261 to 35196. [2020-09-17 01:43:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35196 states. [2020-09-17 01:43:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35196 states to 35196 states and 187476 transitions. [2020-09-17 01:43:41,114 INFO L78 Accepts]: Start accepts. Automaton has 35196 states and 187476 transitions. Word has length 25 [2020-09-17 01:43:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:41,114 INFO L479 AbstractCegarLoop]: Abstraction has 35196 states and 187476 transitions. [2020-09-17 01:43:41,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 35196 states and 187476 transitions. [2020-09-17 01:43:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:41,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:41,117 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:41,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:43:41,318 INFO L427 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]=== [2020-09-17 01:43:41,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:41,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1141712853, now seen corresponding path program 2 times [2020-09-17 01:43:41,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:41,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679825838] [2020-09-17 01:43:41,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:41,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679825838] [2020-09-17 01:43:41,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358537085] [2020-09-17 01:43:41,410 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 [2020-09-17 01:43:41,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:43:41,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:43:41,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:43:41,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:43:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:43:41,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:43:41,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:43:41,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364276387] [2020-09-17 01:43:41,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:43:41,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:41,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:43:41,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:43:41,566 INFO L87 Difference]: Start difference. First operand 35196 states and 187476 transitions. Second operand 11 states. [2020-09-17 01:43:43,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:43,308 INFO L93 Difference]: Finished difference Result 119264 states and 544110 transitions. [2020-09-17 01:43:43,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:43,308 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-09-17 01:43:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:43,722 INFO L225 Difference]: With dead ends: 119264 [2020-09-17 01:43:43,723 INFO L226 Difference]: Without dead ends: 119224 [2020-09-17 01:43:43,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:43:44,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119224 states. [2020-09-17 01:43:49,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119224 to 34815. [2020-09-17 01:43:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34815 states. [2020-09-17 01:43:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34815 states to 34815 states and 185342 transitions. [2020-09-17 01:43:49,532 INFO L78 Accepts]: Start accepts. Automaton has 34815 states and 185342 transitions. Word has length 25 [2020-09-17 01:43:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:49,532 INFO L479 AbstractCegarLoop]: Abstraction has 34815 states and 185342 transitions. [2020-09-17 01:43:49,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:43:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 34815 states and 185342 transitions. [2020-09-17 01:43:49,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:49,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:49,536 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:49,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-09-17 01:43:49,746 INFO L427 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]=== [2020-09-17 01:43:49,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:49,748 INFO L82 PathProgramCache]: Analyzing trace with hash -980827488, now seen corresponding path program 5 times [2020-09-17 01:43:49,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:49,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412203748] [2020-09-17 01:43:49,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:43:49,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412203748] [2020-09-17 01:43:49,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:43:49,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:43:49,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383763135] [2020-09-17 01:43:49,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:43:49,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:49,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:43:49,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:43:49,831 INFO L87 Difference]: Start difference. First operand 34815 states and 185342 transitions. Second operand 9 states. [2020-09-17 01:43:51,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:51,228 INFO L93 Difference]: Finished difference Result 119116 states and 542590 transitions. [2020-09-17 01:43:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:51,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:43:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:51,604 INFO L225 Difference]: With dead ends: 119116 [2020-09-17 01:43:51,604 INFO L226 Difference]: Without dead ends: 119086 [2020-09-17 01:43:51,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:43:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119086 states. [2020-09-17 01:43:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119086 to 34044. [2020-09-17 01:43:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34044 states. [2020-09-17 01:43:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34044 states to 34044 states and 181257 transitions. [2020-09-17 01:43:55,146 INFO L78 Accepts]: Start accepts. Automaton has 34044 states and 181257 transitions. Word has length 25 [2020-09-17 01:43:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:43:55,147 INFO L479 AbstractCegarLoop]: Abstraction has 34044 states and 181257 transitions. [2020-09-17 01:43:55,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:43:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 34044 states and 181257 transitions. [2020-09-17 01:43:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:43:55,150 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:43:55,150 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:43:55,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2020-09-17 01:43:55,150 INFO L427 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]=== [2020-09-17 01:43:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:43:55,150 INFO L82 PathProgramCache]: Analyzing trace with hash -980805416, now seen corresponding path program 3 times [2020-09-17 01:43:55,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:43:55,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397165244] [2020-09-17 01:43:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:43:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:43:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:43:55,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397165244] [2020-09-17 01:43:55,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:43:55,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:43:55,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745334097] [2020-09-17 01:43:55,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:43:55,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:43:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:43:55,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:43:55,236 INFO L87 Difference]: Start difference. First operand 34044 states and 181257 transitions. Second operand 9 states. [2020-09-17 01:43:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:43:56,647 INFO L93 Difference]: Finished difference Result 118392 states and 539774 transitions. [2020-09-17 01:43:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:43:56,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:43:56,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:43:57,014 INFO L225 Difference]: With dead ends: 118392 [2020-09-17 01:43:57,014 INFO L226 Difference]: Without dead ends: 118362 [2020-09-17 01:43:57,014 INFO L675 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 [2020-09-17 01:43:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118362 states. [2020-09-17 01:44:00,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118362 to 33530. [2020-09-17 01:44:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33530 states. [2020-09-17 01:44:00,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33530 states to 33530 states and 178563 transitions. [2020-09-17 01:44:00,727 INFO L78 Accepts]: Start accepts. Automaton has 33530 states and 178563 transitions. Word has length 25 [2020-09-17 01:44:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:00,727 INFO L479 AbstractCegarLoop]: Abstraction has 33530 states and 178563 transitions. [2020-09-17 01:44:00,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 33530 states and 178563 transitions. [2020-09-17 01:44:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:00,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:00,730 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:00,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2020-09-17 01:44:00,730 INFO L427 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]=== [2020-09-17 01:44:00,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:00,731 INFO L82 PathProgramCache]: Analyzing trace with hash -979488288, now seen corresponding path program 6 times [2020-09-17 01:44:00,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:00,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113659419] [2020-09-17 01:44:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:00,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113659419] [2020-09-17 01:44:00,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:00,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:00,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931697761] [2020-09-17 01:44:00,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:00,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:00,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:00,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:00,818 INFO L87 Difference]: Start difference. First operand 33530 states and 178563 transitions. Second operand 9 states. [2020-09-17 01:44:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:02,643 INFO L93 Difference]: Finished difference Result 116966 states and 531912 transitions. [2020-09-17 01:44:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:02,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:02,988 INFO L225 Difference]: With dead ends: 116966 [2020-09-17 01:44:02,988 INFO L226 Difference]: Without dead ends: 116926 [2020-09-17 01:44:02,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:44:04,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116926 states. [2020-09-17 01:44:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116926 to 32557. [2020-09-17 01:44:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32557 states. [2020-09-17 01:44:09,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32557 states to 32557 states and 173592 transitions. [2020-09-17 01:44:09,288 INFO L78 Accepts]: Start accepts. Automaton has 32557 states and 173592 transitions. Word has length 25 [2020-09-17 01:44:09,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:09,289 INFO L479 AbstractCegarLoop]: Abstraction has 32557 states and 173592 transitions. [2020-09-17 01:44:09,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:09,289 INFO L276 IsEmpty]: Start isEmpty. Operand 32557 states and 173592 transitions. [2020-09-17 01:44:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:09,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:09,292 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:09,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2020-09-17 01:44:09,292 INFO L427 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]=== [2020-09-17 01:44:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:09,292 INFO L82 PathProgramCache]: Analyzing trace with hash -979464821, now seen corresponding path program 3 times [2020-09-17 01:44:09,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:09,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210743346] [2020-09-17 01:44:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:09,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210743346] [2020-09-17 01:44:09,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:09,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:09,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7025066] [2020-09-17 01:44:09,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:09,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:09,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:09,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:09,383 INFO L87 Difference]: Start difference. First operand 32557 states and 173592 transitions. Second operand 9 states. [2020-09-17 01:44:10,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:10,726 INFO L93 Difference]: Finished difference Result 116421 states and 530054 transitions. [2020-09-17 01:44:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:10,726 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:11,154 INFO L225 Difference]: With dead ends: 116421 [2020-09-17 01:44:11,154 INFO L226 Difference]: Without dead ends: 116391 [2020-09-17 01:44:11,154 INFO L675 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 [2020-09-17 01:44:12,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116391 states. [2020-09-17 01:44:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116391 to 32226. [2020-09-17 01:44:14,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32226 states. [2020-09-17 01:44:14,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32226 states to 32226 states and 171898 transitions. [2020-09-17 01:44:14,246 INFO L78 Accepts]: Start accepts. Automaton has 32226 states and 171898 transitions. Word has length 25 [2020-09-17 01:44:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:14,246 INFO L479 AbstractCegarLoop]: Abstraction has 32226 states and 171898 transitions. [2020-09-17 01:44:14,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:14,247 INFO L276 IsEmpty]: Start isEmpty. Operand 32226 states and 171898 transitions. [2020-09-17 01:44:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:14,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:14,249 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:14,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2020-09-17 01:44:14,250 INFO L427 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]=== [2020-09-17 01:44:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:14,250 INFO L82 PathProgramCache]: Analyzing trace with hash -958277096, now seen corresponding path program 4 times [2020-09-17 01:44:14,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:14,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709787446] [2020-09-17 01:44:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:14,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709787446] [2020-09-17 01:44:14,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:14,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:14,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903974141] [2020-09-17 01:44:14,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:14,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:14,337 INFO L87 Difference]: Start difference. First operand 32226 states and 171898 transitions. Second operand 9 states. [2020-09-17 01:44:15,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:15,770 INFO L93 Difference]: Finished difference Result 116502 states and 530595 transitions. [2020-09-17 01:44:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:15,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:16,177 INFO L225 Difference]: With dead ends: 116502 [2020-09-17 01:44:16,177 INFO L226 Difference]: Without dead ends: 116462 [2020-09-17 01:44:16,177 INFO L675 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 [2020-09-17 01:44:18,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116462 states. [2020-09-17 01:44:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116462 to 32188. [2020-09-17 01:44:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32188 states. [2020-09-17 01:44:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32188 states to 32188 states and 171558 transitions. [2020-09-17 01:44:19,581 INFO L78 Accepts]: Start accepts. Automaton has 32188 states and 171558 transitions. Word has length 25 [2020-09-17 01:44:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:19,582 INFO L479 AbstractCegarLoop]: Abstraction has 32188 states and 171558 transitions. [2020-09-17 01:44:19,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 32188 states and 171558 transitions. [2020-09-17 01:44:19,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:19,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:19,585 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:19,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2020-09-17 01:44:19,586 INFO L427 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]=== [2020-09-17 01:44:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:19,586 INFO L82 PathProgramCache]: Analyzing trace with hash -958275701, now seen corresponding path program 4 times [2020-09-17 01:44:19,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:19,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040064243] [2020-09-17 01:44:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:19,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040064243] [2020-09-17 01:44:19,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:19,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:19,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119464349] [2020-09-17 01:44:19,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:19,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:19,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:19,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:19,677 INFO L87 Difference]: Start difference. First operand 32188 states and 171558 transitions. Second operand 9 states. [2020-09-17 01:44:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:21,174 INFO L93 Difference]: Finished difference Result 115555 states and 526107 transitions. [2020-09-17 01:44:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:21,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:21,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:21,620 INFO L225 Difference]: With dead ends: 115555 [2020-09-17 01:44:21,620 INFO L226 Difference]: Without dead ends: 115515 [2020-09-17 01:44:21,620 INFO L675 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 [2020-09-17 01:44:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115515 states. [2020-09-17 01:44:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115515 to 31998. [2020-09-17 01:44:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31998 states. [2020-09-17 01:44:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31998 states to 31998 states and 170450 transitions. [2020-09-17 01:44:24,836 INFO L78 Accepts]: Start accepts. Automaton has 31998 states and 170450 transitions. Word has length 25 [2020-09-17 01:44:24,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:24,836 INFO L479 AbstractCegarLoop]: Abstraction has 31998 states and 170450 transitions. [2020-09-17 01:44:24,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:24,836 INFO L276 IsEmpty]: Start isEmpty. Operand 31998 states and 170450 transitions. [2020-09-17 01:44:24,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:24,839 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:24,839 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:24,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2020-09-17 01:44:24,839 INFO L427 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]=== [2020-09-17 01:44:24,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:24,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1698987747, now seen corresponding path program 1 times [2020-09-17 01:44:24,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:24,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51758943] [2020-09-17 01:44:24,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:24,886 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:44:24,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51758943] [2020-09-17 01:44:24,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:24,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:44:24,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121768180] [2020-09-17 01:44:24,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:44:24,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:24,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:44:24,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:44:24,888 INFO L87 Difference]: Start difference. First operand 31998 states and 170450 transitions. Second operand 5 states. [2020-09-17 01:44:25,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:25,292 INFO L93 Difference]: Finished difference Result 56734 states and 290623 transitions. [2020-09-17 01:44:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:44:25,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-09-17 01:44:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:25,468 INFO L225 Difference]: With dead ends: 56734 [2020-09-17 01:44:25,468 INFO L226 Difference]: Without dead ends: 56671 [2020-09-17 01:44:25,468 INFO L675 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 [2020-09-17 01:44:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56671 states. [2020-09-17 01:44:27,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56671 to 40400. [2020-09-17 01:44:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40400 states. [2020-09-17 01:44:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40400 states to 40400 states and 215336 transitions. [2020-09-17 01:44:27,659 INFO L78 Accepts]: Start accepts. Automaton has 40400 states and 215336 transitions. Word has length 25 [2020-09-17 01:44:27,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:27,659 INFO L479 AbstractCegarLoop]: Abstraction has 40400 states and 215336 transitions. [2020-09-17 01:44:27,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:44:27,660 INFO L276 IsEmpty]: Start isEmpty. Operand 40400 states and 215336 transitions. [2020-09-17 01:44:27,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:27,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:27,662 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:27,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2020-09-17 01:44:27,662 INFO L427 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]=== [2020-09-17 01:44:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:27,663 INFO L82 PathProgramCache]: Analyzing trace with hash -670679464, now seen corresponding path program 5 times [2020-09-17 01:44:27,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:27,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334807031] [2020-09-17 01:44:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:27,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:27,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334807031] [2020-09-17 01:44:27,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:27,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:27,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980274502] [2020-09-17 01:44:27,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:27,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:27,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:27,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:27,745 INFO L87 Difference]: Start difference. First operand 40400 states and 215336 transitions. Second operand 9 states. [2020-09-17 01:44:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:29,280 INFO L93 Difference]: Finished difference Result 137449 states and 636138 transitions. [2020-09-17 01:44:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:29,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:29,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:30,655 INFO L225 Difference]: With dead ends: 137449 [2020-09-17 01:44:30,655 INFO L226 Difference]: Without dead ends: 137407 [2020-09-17 01:44:30,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:44:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137407 states. [2020-09-17 01:44:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137407 to 39840. [2020-09-17 01:44:33,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39840 states. [2020-09-17 01:44:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39840 states to 39840 states and 212294 transitions. [2020-09-17 01:44:33,934 INFO L78 Accepts]: Start accepts. Automaton has 39840 states and 212294 transitions. Word has length 25 [2020-09-17 01:44:33,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:33,934 INFO L479 AbstractCegarLoop]: Abstraction has 39840 states and 212294 transitions. [2020-09-17 01:44:33,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 39840 states and 212294 transitions. [2020-09-17 01:44:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:33,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:33,937 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:33,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2020-09-17 01:44:33,937 INFO L427 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]=== [2020-09-17 01:44:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:33,938 INFO L82 PathProgramCache]: Analyzing trace with hash -669338869, now seen corresponding path program 5 times [2020-09-17 01:44:33,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:33,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105581539] [2020-09-17 01:44:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:34,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105581539] [2020-09-17 01:44:34,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:34,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:34,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224642951] [2020-09-17 01:44:34,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:34,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:34,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:34,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:34,589 INFO L87 Difference]: Start difference. First operand 39840 states and 212294 transitions. Second operand 9 states. [2020-09-17 01:44:36,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:36,087 INFO L93 Difference]: Finished difference Result 136260 states and 629977 transitions. [2020-09-17 01:44:36,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:36,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:36,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:36,665 INFO L225 Difference]: With dead ends: 136260 [2020-09-17 01:44:36,665 INFO L226 Difference]: Without dead ends: 136218 [2020-09-17 01:44:36,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2020-09-17 01:44:38,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136218 states. [2020-09-17 01:44:42,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136218 to 39457. [2020-09-17 01:44:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39457 states. [2020-09-17 01:44:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39457 states to 39457 states and 210241 transitions. [2020-09-17 01:44:43,081 INFO L78 Accepts]: Start accepts. Automaton has 39457 states and 210241 transitions. Word has length 25 [2020-09-17 01:44:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:43,081 INFO L479 AbstractCegarLoop]: Abstraction has 39457 states and 210241 transitions. [2020-09-17 01:44:43,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 39457 states and 210241 transitions. [2020-09-17 01:44:43,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:43,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:43,084 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:43,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2020-09-17 01:44:43,084 INFO L427 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]=== [2020-09-17 01:44:43,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:43,085 INFO L82 PathProgramCache]: Analyzing trace with hash -684190504, now seen corresponding path program 6 times [2020-09-17 01:44:43,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:43,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234353215] [2020-09-17 01:44:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:43,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:43,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234353215] [2020-09-17 01:44:43,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:43,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:43,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045741219] [2020-09-17 01:44:43,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:43,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:43,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:43,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:43,176 INFO L87 Difference]: Start difference. First operand 39457 states and 210241 transitions. Second operand 9 states. [2020-09-17 01:44:44,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:44,747 INFO L93 Difference]: Finished difference Result 135358 states and 625465 transitions. [2020-09-17 01:44:44,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:44,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:45,164 INFO L225 Difference]: With dead ends: 135358 [2020-09-17 01:44:45,164 INFO L226 Difference]: Without dead ends: 135306 [2020-09-17 01:44:45,164 INFO L675 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 [2020-09-17 01:44:47,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135306 states. [2020-09-17 01:44:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135306 to 38674. [2020-09-17 01:44:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38674 states. [2020-09-17 01:44:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38674 states to 38674 states and 206150 transitions. [2020-09-17 01:44:49,197 INFO L78 Accepts]: Start accepts. Automaton has 38674 states and 206150 transitions. Word has length 25 [2020-09-17 01:44:49,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:49,197 INFO L479 AbstractCegarLoop]: Abstraction has 38674 states and 206150 transitions. [2020-09-17 01:44:49,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 38674 states and 206150 transitions. [2020-09-17 01:44:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-17 01:44:49,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:49,200 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:49,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2020-09-17 01:44:49,201 INFO L427 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]=== [2020-09-17 01:44:49,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:49,201 INFO L82 PathProgramCache]: Analyzing trace with hash -684189109, now seen corresponding path program 6 times [2020-09-17 01:44:49,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:49,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666942943] [2020-09-17 01:44:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:44:49,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666942943] [2020-09-17 01:44:49,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:44:49,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 01:44:49,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316715425] [2020-09-17 01:44:49,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:49,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:49,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:49,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:49,288 INFO L87 Difference]: Start difference. First operand 38674 states and 206150 transitions. Second operand 9 states. [2020-09-17 01:44:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:51,570 INFO L93 Difference]: Finished difference Result 134089 states and 619317 transitions. [2020-09-17 01:44:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:44:51,571 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-09-17 01:44:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:52,020 INFO L225 Difference]: With dead ends: 134089 [2020-09-17 01:44:52,020 INFO L226 Difference]: Without dead ends: 134037 [2020-09-17 01:44:52,021 INFO L675 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 [2020-09-17 01:44:53,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134037 states. [2020-09-17 01:44:58,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134037 to 37675. [2020-09-17 01:44:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37675 states. [2020-09-17 01:44:58,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37675 states to 37675 states and 201015 transitions. [2020-09-17 01:44:58,303 INFO L78 Accepts]: Start accepts. Automaton has 37675 states and 201015 transitions. Word has length 25 [2020-09-17 01:44:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:44:58,303 INFO L479 AbstractCegarLoop]: Abstraction has 37675 states and 201015 transitions. [2020-09-17 01:44:58,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:44:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 37675 states and 201015 transitions. [2020-09-17 01:44:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:44:58,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:44:58,307 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:44:58,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2020-09-17 01:44:58,307 INFO L427 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]=== [2020-09-17 01:44:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:44:58,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1444696671, now seen corresponding path program 1 times [2020-09-17 01:44:58,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:44:58,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866820825] [2020-09-17 01:44:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:44:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:44:58,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866820825] [2020-09-17 01:44:58,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836895141] [2020-09-17 01:44:58,375 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 [2020-09-17 01:44:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:44:58,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:44:58,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:44:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:44:58,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:44:58,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:44:58,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608937200] [2020-09-17 01:44:58,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:44:58,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:44:58,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:44:58,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:44:58,520 INFO L87 Difference]: Start difference. First operand 37675 states and 201015 transitions. Second operand 9 states. [2020-09-17 01:44:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:44:59,280 INFO L93 Difference]: Finished difference Result 85349 states and 414605 transitions. [2020-09-17 01:44:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:44:59,285 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-17 01:44:59,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:44:59,574 INFO L225 Difference]: With dead ends: 85349 [2020-09-17 01:44:59,574 INFO L226 Difference]: Without dead ends: 85301 [2020-09-17 01:44:59,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:45:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85301 states. [2020-09-17 01:45:02,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85301 to 38836. [2020-09-17 01:45:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38836 states. [2020-09-17 01:45:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38836 states to 38836 states and 206710 transitions. [2020-09-17 01:45:02,521 INFO L78 Accepts]: Start accepts. Automaton has 38836 states and 206710 transitions. Word has length 27 [2020-09-17 01:45:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:45:02,521 INFO L479 AbstractCegarLoop]: Abstraction has 38836 states and 206710 transitions. [2020-09-17 01:45:02,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:45:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 38836 states and 206710 transitions. [2020-09-17 01:45:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:45:02,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:45:02,525 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] [2020-09-17 01:45:02,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2020-09-17 01:45:02,726 INFO L427 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]=== [2020-09-17 01:45:02,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:45:02,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1707919879, now seen corresponding path program 1 times [2020-09-17 01:45:02,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:45:02,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120893699] [2020-09-17 01:45:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:45:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:02,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120893699] [2020-09-17 01:45:02,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277281885] [2020-09-17 01:45:02,826 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 [2020-09-17 01:45:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:02,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:45:02,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:45:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:02,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:45:02,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:45:02,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852710957] [2020-09-17 01:45:02,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:45:02,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:45:02,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:45:02,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:45:02,991 INFO L87 Difference]: Start difference. First operand 38836 states and 206710 transitions. Second operand 13 states. [2020-09-17 01:45:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:45:07,079 INFO L93 Difference]: Finished difference Result 184520 states and 806691 transitions. [2020-09-17 01:45:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:45:07,080 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:45:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:45:07,597 INFO L225 Difference]: With dead ends: 184520 [2020-09-17 01:45:07,597 INFO L226 Difference]: Without dead ends: 184502 [2020-09-17 01:45:07,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:45:09,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184502 states. [2020-09-17 01:45:15,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184502 to 38937. [2020-09-17 01:45:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38937 states. [2020-09-17 01:45:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38937 states to 38937 states and 207195 transitions. [2020-09-17 01:45:15,538 INFO L78 Accepts]: Start accepts. Automaton has 38937 states and 207195 transitions. Word has length 27 [2020-09-17 01:45:15,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:45:15,539 INFO L479 AbstractCegarLoop]: Abstraction has 38937 states and 207195 transitions. [2020-09-17 01:45:15,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:45:15,539 INFO L276 IsEmpty]: Start isEmpty. Operand 38937 states and 207195 transitions. [2020-09-17 01:45:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:45:15,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:45:15,543 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] [2020-09-17 01:45:15,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-09-17 01:45:15,744 INFO L427 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]=== [2020-09-17 01:45:15,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:45:15,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1671880519, now seen corresponding path program 2 times [2020-09-17 01:45:15,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:45:15,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510625525] [2020-09-17 01:45:15,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:45:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:15,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510625525] [2020-09-17 01:45:15,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941588749] [2020-09-17 01:45:15,858 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 [2020-09-17 01:45:15,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:45:15,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:45:15,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:45:15,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:45:16,013 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:16,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:45:16,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:45:16,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974875135] [2020-09-17 01:45:16,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:45:16,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:45:16,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:45:16,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:45:16,015 INFO L87 Difference]: Start difference. First operand 38937 states and 207195 transitions. Second operand 13 states. [2020-09-17 01:45:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:45:19,930 INFO L93 Difference]: Finished difference Result 184111 states and 804949 transitions. [2020-09-17 01:45:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:45:19,931 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:45:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:45:20,511 INFO L225 Difference]: With dead ends: 184111 [2020-09-17 01:45:20,511 INFO L226 Difference]: Without dead ends: 184087 [2020-09-17 01:45:20,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1595 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:45:22,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184087 states. [2020-09-17 01:45:28,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184087 to 38705. [2020-09-17 01:45:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38705 states. [2020-09-17 01:45:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38705 states to 38705 states and 205959 transitions. [2020-09-17 01:45:28,569 INFO L78 Accepts]: Start accepts. Automaton has 38705 states and 205959 transitions. Word has length 27 [2020-09-17 01:45:28,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:45:28,570 INFO L479 AbstractCegarLoop]: Abstraction has 38705 states and 205959 transitions. [2020-09-17 01:45:28,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:45:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 38705 states and 205959 transitions. [2020-09-17 01:45:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:45:28,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:45:28,574 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] [2020-09-17 01:45:28,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:45:28,775 INFO L427 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]=== [2020-09-17 01:45:28,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:45:28,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1200868665, now seen corresponding path program 3 times [2020-09-17 01:45:28,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:45:28,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629363547] [2020-09-17 01:45:28,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:45:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:28,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629363547] [2020-09-17 01:45:28,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130386294] [2020-09-17 01:45:28,887 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 [2020-09-17 01:45:29,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-09-17 01:45:29,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:45:29,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:45:29,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:45:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:29,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:45:29,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:45:29,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877036253] [2020-09-17 01:45:29,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:45:29,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:45:29,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:45:29,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:45:29,038 INFO L87 Difference]: Start difference. First operand 38705 states and 205959 transitions. Second operand 13 states. [2020-09-17 01:45:32,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:45:32,510 INFO L93 Difference]: Finished difference Result 183485 states and 802028 transitions. [2020-09-17 01:45:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:45:32,510 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:45:32,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:45:33,039 INFO L225 Difference]: With dead ends: 183485 [2020-09-17 01:45:33,039 INFO L226 Difference]: Without dead ends: 183467 [2020-09-17 01:45:33,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1602 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:45:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183467 states. [2020-09-17 01:45:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183467 to 38802. [2020-09-17 01:45:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38802 states. [2020-09-17 01:45:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 206432 transitions. [2020-09-17 01:45:37,955 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 206432 transitions. Word has length 27 [2020-09-17 01:45:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:45:37,956 INFO L479 AbstractCegarLoop]: Abstraction has 38802 states and 206432 transitions. [2020-09-17 01:45:37,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:45:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 206432 transitions. [2020-09-17 01:45:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:45:37,960 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:45:37,960 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] [2020-09-17 01:45:38,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,49 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:45:38,160 INFO L427 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]=== [2020-09-17 01:45:38,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:45:38,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1222057785, now seen corresponding path program 4 times [2020-09-17 01:45:38,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:45:38,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903384127] [2020-09-17 01:45:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:45:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:38,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903384127] [2020-09-17 01:45:38,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759476689] [2020-09-17 01:45:38,272 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 [2020-09-17 01:45:38,390 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:45:38,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:45:38,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:45:38,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:45:38,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:38,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:45:38,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:45:38,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890574364] [2020-09-17 01:45:38,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:45:38,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:45:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:45:38,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:45:38,422 INFO L87 Difference]: Start difference. First operand 38802 states and 206432 transitions. Second operand 13 states. [2020-09-17 01:45:43,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:45:43,092 INFO L93 Difference]: Finished difference Result 183194 states and 800691 transitions. [2020-09-17 01:45:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:45:43,093 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:45:43,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:45:43,621 INFO L225 Difference]: With dead ends: 183194 [2020-09-17 01:45:43,621 INFO L226 Difference]: Without dead ends: 183170 [2020-09-17 01:45:43,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:45:46,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183170 states. [2020-09-17 01:45:47,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183170 to 38578. [2020-09-17 01:45:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38578 states. [2020-09-17 01:45:48,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38578 states to 38578 states and 205224 transitions. [2020-09-17 01:45:48,112 INFO L78 Accepts]: Start accepts. Automaton has 38578 states and 205224 transitions. Word has length 27 [2020-09-17 01:45:48,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:45:48,112 INFO L479 AbstractCegarLoop]: Abstraction has 38578 states and 205224 transitions. [2020-09-17 01:45:48,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:45:48,113 INFO L276 IsEmpty]: Start isEmpty. Operand 38578 states and 205224 transitions. [2020-09-17 01:45:48,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:45:48,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:45:48,116 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] [2020-09-17 01:45:48,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:45:48,317 INFO L427 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]=== [2020-09-17 01:45:48,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:45:48,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1510994617, now seen corresponding path program 5 times [2020-09-17 01:45:48,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:45:48,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729094199] [2020-09-17 01:45:48,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:45:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:45:48,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:48,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729094199] [2020-09-17 01:45:48,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029910615] [2020-09-17 01:45:48,432 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 [2020-09-17 01:45:48,569 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-09-17 01:45:48,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:45:48,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:45:48,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:45:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:45:48,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:45:48,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:45:48,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458689073] [2020-09-17 01:45:48,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:45:48,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:45:48,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:45:48,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:45:48,603 INFO L87 Difference]: Start difference. First operand 38578 states and 205224 transitions. Second operand 13 states. [2020-09-17 01:45:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:45:52,663 INFO L93 Difference]: Finished difference Result 182584 states and 797818 transitions. [2020-09-17 01:45:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:45:52,663 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:45:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:45:53,191 INFO L225 Difference]: With dead ends: 182584 [2020-09-17 01:45:53,191 INFO L226 Difference]: Without dead ends: 182566 [2020-09-17 01:45:53,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:45:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182566 states. [2020-09-17 01:46:00,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182566 to 38683. [2020-09-17 01:46:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38683 states. [2020-09-17 01:46:00,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38683 states to 38683 states and 205717 transitions. [2020-09-17 01:46:00,921 INFO L78 Accepts]: Start accepts. Automaton has 38683 states and 205717 transitions. Word has length 27 [2020-09-17 01:46:00,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:00,922 INFO L479 AbstractCegarLoop]: Abstraction has 38683 states and 205717 transitions. [2020-09-17 01:46:00,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:00,922 INFO L276 IsEmpty]: Start isEmpty. Operand 38683 states and 205717 transitions. [2020-09-17 01:46:00,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:00,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:00,926 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] [2020-09-17 01:46:01,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2020-09-17 01:46:01,127 INFO L427 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]=== [2020-09-17 01:46:01,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:01,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1496144377, now seen corresponding path program 6 times [2020-09-17 01:46:01,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:01,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246445467] [2020-09-17 01:46:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:46:01,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246445467] [2020-09-17 01:46:01,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856759371] [2020-09-17 01:46:01,244 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 [2020-09-17 01:46:01,922 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-09-17 01:46:01,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:46:01,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:01,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-17 01:46:01,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:01,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:01,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372586741] [2020-09-17 01:46:01,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:01,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:01,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:01,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:01,953 INFO L87 Difference]: Start difference. First operand 38683 states and 205717 transitions. Second operand 13 states. [2020-09-17 01:46:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:04,876 INFO L93 Difference]: Finished difference Result 182167 states and 796056 transitions. [2020-09-17 01:46:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:46:04,876 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:46:04,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:05,429 INFO L225 Difference]: With dead ends: 182167 [2020-09-17 01:46:05,429 INFO L226 Difference]: Without dead ends: 182139 [2020-09-17 01:46:05,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1599 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:46:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182139 states. [2020-09-17 01:46:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182139 to 38439. [2020-09-17 01:46:10,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38439 states. [2020-09-17 01:46:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38439 states to 38439 states and 204452 transitions. [2020-09-17 01:46:10,308 INFO L78 Accepts]: Start accepts. Automaton has 38439 states and 204452 transitions. Word has length 27 [2020-09-17 01:46:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:10,308 INFO L479 AbstractCegarLoop]: Abstraction has 38439 states and 204452 transitions. [2020-09-17 01:46:10,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 38439 states and 204452 transitions. [2020-09-17 01:46:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:10,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:10,312 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] [2020-09-17 01:46:10,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2020-09-17 01:46:10,513 INFO L427 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]=== [2020-09-17 01:46:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:10,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1123724041, now seen corresponding path program 7 times [2020-09-17 01:46:10,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:10,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41260502] [2020-09-17 01:46:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:10,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41260502] [2020-09-17 01:46:10,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374790922] [2020-09-17 01:46:10,983 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 [2020-09-17 01:46:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:11,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:11,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:11,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:11,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:11,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369053810] [2020-09-17 01:46:11,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:11,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:11,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:11,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:11,134 INFO L87 Difference]: Start difference. First operand 38439 states and 204452 transitions. Second operand 13 states. [2020-09-17 01:46:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:14,088 INFO L93 Difference]: Finished difference Result 183258 states and 800935 transitions. [2020-09-17 01:46:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:46:14,089 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:46:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:14,641 INFO L225 Difference]: With dead ends: 183258 [2020-09-17 01:46:14,641 INFO L226 Difference]: Without dead ends: 183240 [2020-09-17 01:46:14,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:46:17,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183240 states. [2020-09-17 01:46:19,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183240 to 38278. [2020-09-17 01:46:19,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38278 states. [2020-09-17 01:46:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38278 states to 38278 states and 203659 transitions. [2020-09-17 01:46:19,276 INFO L78 Accepts]: Start accepts. Automaton has 38278 states and 203659 transitions. Word has length 27 [2020-09-17 01:46:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:19,277 INFO L479 AbstractCegarLoop]: Abstraction has 38278 states and 203659 transitions. [2020-09-17 01:46:19,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 38278 states and 203659 transitions. [2020-09-17 01:46:19,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:19,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:19,281 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] [2020-09-17 01:46:19,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2020-09-17 01:46:19,482 INFO L427 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]=== [2020-09-17 01:46:19,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:19,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1087684681, now seen corresponding path program 8 times [2020-09-17 01:46:19,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:19,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072655681] [2020-09-17 01:46:19,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:19,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072655681] [2020-09-17 01:46:19,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190860918] [2020-09-17 01:46:19,597 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 [2020-09-17 01:46:20,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:46:20,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:46:20,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:20,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:20,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:20,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:20,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682853919] [2020-09-17 01:46:20,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:20,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:20,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:20,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:20,088 INFO L87 Difference]: Start difference. First operand 38278 states and 203659 transitions. Second operand 13 states. [2020-09-17 01:46:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:23,111 INFO L93 Difference]: Finished difference Result 182849 states and 799193 transitions. [2020-09-17 01:46:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:46:23,111 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:46:23,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:23,790 INFO L225 Difference]: With dead ends: 182849 [2020-09-17 01:46:23,790 INFO L226 Difference]: Without dead ends: 182825 [2020-09-17 01:46:23,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1594 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:46:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182825 states. [2020-09-17 01:46:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182825 to 37884. [2020-09-17 01:46:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37884 states. [2020-09-17 01:46:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37884 states to 37884 states and 201622 transitions. [2020-09-17 01:46:28,372 INFO L78 Accepts]: Start accepts. Automaton has 37884 states and 201622 transitions. Word has length 27 [2020-09-17 01:46:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:28,372 INFO L479 AbstractCegarLoop]: Abstraction has 37884 states and 201622 transitions. [2020-09-17 01:46:28,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 37884 states and 201622 transitions. [2020-09-17 01:46:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:28,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:28,376 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] [2020-09-17 01:46:28,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2020-09-17 01:46:28,577 INFO L427 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]=== [2020-09-17 01:46:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:28,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2028959203, now seen corresponding path program 9 times [2020-09-17 01:46:28,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:28,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383521951] [2020-09-17 01:46:28,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:28,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383521951] [2020-09-17 01:46:28,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811125787] [2020-09-17 01:46:28,698 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 [2020-09-17 01:46:28,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-09-17 01:46:28,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:46:28,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:28,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:28,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:28,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:28,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501623878] [2020-09-17 01:46:28,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:28,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:28,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:28,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:28,846 INFO L87 Difference]: Start difference. First operand 37884 states and 201622 transitions. Second operand 13 states. [2020-09-17 01:46:29,184 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-09-17 01:46:32,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:32,383 INFO L93 Difference]: Finished difference Result 183773 states and 803153 transitions. [2020-09-17 01:46:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:46:32,384 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:46:32,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:32,957 INFO L225 Difference]: With dead ends: 183773 [2020-09-17 01:46:32,957 INFO L226 Difference]: Without dead ends: 183755 [2020-09-17 01:46:32,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:46:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183755 states. [2020-09-17 01:46:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183755 to 37981. [2020-09-17 01:46:37,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37981 states. [2020-09-17 01:46:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37981 states to 37981 states and 202095 transitions. [2020-09-17 01:46:37,708 INFO L78 Accepts]: Start accepts. Automaton has 37981 states and 202095 transitions. Word has length 27 [2020-09-17 01:46:37,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:37,708 INFO L479 AbstractCegarLoop]: Abstraction has 37981 states and 202095 transitions. [2020-09-17 01:46:37,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand 37981 states and 202095 transitions. [2020-09-17 01:46:39,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:39,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:39,961 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] [2020-09-17 01:46:40,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2020-09-17 01:46:40,162 INFO L427 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]=== [2020-09-17 01:46:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:40,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2051487523, now seen corresponding path program 10 times [2020-09-17 01:46:40,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:40,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073382748] [2020-09-17 01:46:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:40,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:40,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073382748] [2020-09-17 01:46:40,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971965463] [2020-09-17 01:46:40,282 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 [2020-09-17 01:46:40,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:46:40,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:46:40,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:40,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:40,440 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:40,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:40,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:40,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398938676] [2020-09-17 01:46:40,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:40,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:40,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:40,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:40,441 INFO L87 Difference]: Start difference. First operand 37981 states and 202095 transitions. Second operand 13 states. [2020-09-17 01:46:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:43,717 INFO L93 Difference]: Finished difference Result 184574 states and 806606 transitions. [2020-09-17 01:46:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:46:43,717 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:46:43,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:44,384 INFO L225 Difference]: With dead ends: 184574 [2020-09-17 01:46:44,384 INFO L226 Difference]: Without dead ends: 184550 [2020-09-17 01:46:44,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1612 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:46:46,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184550 states. [2020-09-17 01:46:49,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184550 to 37723. [2020-09-17 01:46:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37723 states. [2020-09-17 01:46:49,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37723 states to 37723 states and 200669 transitions. [2020-09-17 01:46:49,688 INFO L78 Accepts]: Start accepts. Automaton has 37723 states and 200669 transitions. Word has length 27 [2020-09-17 01:46:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:49,689 INFO L479 AbstractCegarLoop]: Abstraction has 37723 states and 200669 transitions. [2020-09-17 01:46:49,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:46:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 37723 states and 200669 transitions. [2020-09-17 01:46:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:49,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:49,693 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:46:49,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:46:49,899 INFO L427 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]=== [2020-09-17 01:46:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:49,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1310776872, now seen corresponding path program 1 times [2020-09-17 01:46:49,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:49,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404087031] [2020-09-17 01:46:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:49,968 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:46:49,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404087031] [2020-09-17 01:46:49,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861748698] [2020-09-17 01:46:49,969 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 [2020-09-17 01:46:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:50,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:46:50,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:46:50,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:50,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:46:50,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552672179] [2020-09-17 01:46:50,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:46:50,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:50,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:46:50,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:46:50,106 INFO L87 Difference]: Start difference. First operand 37723 states and 200669 transitions. Second operand 9 states. [2020-09-17 01:46:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:46:50,883 INFO L93 Difference]: Finished difference Result 87418 states and 424333 transitions. [2020-09-17 01:46:50,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:46:50,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-17 01:46:50,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:46:51,153 INFO L225 Difference]: With dead ends: 87418 [2020-09-17 01:46:51,153 INFO L226 Difference]: Without dead ends: 87366 [2020-09-17 01:46:51,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:46:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87366 states. [2020-09-17 01:46:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87366 to 39181. [2020-09-17 01:46:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39181 states. [2020-09-17 01:46:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39181 states to 39181 states and 208301 transitions. [2020-09-17 01:46:54,224 INFO L78 Accepts]: Start accepts. Automaton has 39181 states and 208301 transitions. Word has length 27 [2020-09-17 01:46:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:46:54,224 INFO L479 AbstractCegarLoop]: Abstraction has 39181 states and 208301 transitions. [2020-09-17 01:46:54,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:46:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 39181 states and 208301 transitions. [2020-09-17 01:46:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:46:54,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:46:54,229 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] [2020-09-17 01:46:54,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2020-09-17 01:46:54,430 INFO L427 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]=== [2020-09-17 01:46:54,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:46:54,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1955882141, now seen corresponding path program 11 times [2020-09-17 01:46:54,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:46:54,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237013733] [2020-09-17 01:46:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:46:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:46:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:54,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237013733] [2020-09-17 01:46:54,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284465019] [2020-09-17 01:46:54,543 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 [2020-09-17 01:46:54,672 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-09-17 01:46:54,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:46:54,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:46:54,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:46:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:46:54,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:46:54,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:46:54,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776753532] [2020-09-17 01:46:54,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:46:54,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:46:54,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:46:54,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:46:54,704 INFO L87 Difference]: Start difference. First operand 39181 states and 208301 transitions. Second operand 13 states. [2020-09-17 01:47:01,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:01,338 INFO L93 Difference]: Finished difference Result 181204 states and 790360 transitions. [2020-09-17 01:47:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:01,339 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:47:01,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:01,939 INFO L225 Difference]: With dead ends: 181204 [2020-09-17 01:47:01,939 INFO L226 Difference]: Without dead ends: 181186 [2020-09-17 01:47:01,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:47:03,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181186 states. [2020-09-17 01:47:05,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181186 to 39282. [2020-09-17 01:47:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39282 states. [2020-09-17 01:47:06,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39282 states to 39282 states and 208786 transitions. [2020-09-17 01:47:06,147 INFO L78 Accepts]: Start accepts. Automaton has 39282 states and 208786 transitions. Word has length 27 [2020-09-17 01:47:06,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:06,147 INFO L479 AbstractCegarLoop]: Abstraction has 39282 states and 208786 transitions. [2020-09-17 01:47:06,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:47:06,147 INFO L276 IsEmpty]: Start isEmpty. Operand 39282 states and 208786 transitions. [2020-09-17 01:47:06,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:06,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:06,152 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] [2020-09-17 01:47:06,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:47:06,353 INFO L427 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]=== [2020-09-17 01:47:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:06,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1969393181, now seen corresponding path program 12 times [2020-09-17 01:47:06,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:06,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574531414] [2020-09-17 01:47:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:47:06,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574531414] [2020-09-17 01:47:06,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728994675] [2020-09-17 01:47:06,470 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 [2020-09-17 01:47:06,595 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2020-09-17 01:47:06,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:47:06,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-17 01:47:06,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:47:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:47:06,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:47:06,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-17 01:47:06,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806710154] [2020-09-17 01:47:06,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-17 01:47:06,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:06,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-17 01:47:06,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-17 01:47:06,632 INFO L87 Difference]: Start difference. First operand 39282 states and 208786 transitions. Second operand 13 states. [2020-09-17 01:47:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:10,428 INFO L93 Difference]: Finished difference Result 181788 states and 792986 transitions. [2020-09-17 01:47:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:10,429 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-09-17 01:47:10,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:10,993 INFO L225 Difference]: With dead ends: 181788 [2020-09-17 01:47:10,993 INFO L226 Difference]: Without dead ends: 181760 [2020-09-17 01:47:10,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1001, Invalid=3969, Unknown=0, NotChecked=0, Total=4970 [2020-09-17 01:47:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181760 states. [2020-09-17 01:47:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181760 to 39046. [2020-09-17 01:47:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39046 states. [2020-09-17 01:47:15,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39046 states to 39046 states and 207541 transitions. [2020-09-17 01:47:15,876 INFO L78 Accepts]: Start accepts. Automaton has 39046 states and 207541 transitions. Word has length 27 [2020-09-17 01:47:15,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:15,876 INFO L479 AbstractCegarLoop]: Abstraction has 39046 states and 207541 transitions. [2020-09-17 01:47:15,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-17 01:47:15,876 INFO L276 IsEmpty]: Start isEmpty. Operand 39046 states and 207541 transitions. [2020-09-17 01:47:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:15,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:15,883 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] [2020-09-17 01:47:16,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable130 [2020-09-17 01:47:16,097 INFO L427 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]=== [2020-09-17 01:47:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1977356605, now seen corresponding path program 13 times [2020-09-17 01:47:16,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:16,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108575014] [2020-09-17 01:47:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:16,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108575014] [2020-09-17 01:47:16,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:47:16,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:47:16,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412151497] [2020-09-17 01:47:16,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:47:16,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:16,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:47:16,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:47:16,222 INFO L87 Difference]: Start difference. First operand 39046 states and 207541 transitions. Second operand 11 states. [2020-09-17 01:47:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:21,106 INFO L93 Difference]: Finished difference Result 182119 states and 794828 transitions. [2020-09-17 01:47:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:21,107 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:47:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:21,779 INFO L225 Difference]: With dead ends: 182119 [2020-09-17 01:47:21,779 INFO L226 Difference]: Without dead ends: 182101 [2020-09-17 01:47:21,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:47:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182101 states. [2020-09-17 01:47:26,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182101 to 38885. [2020-09-17 01:47:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38885 states. [2020-09-17 01:47:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38885 states to 38885 states and 206748 transitions. [2020-09-17 01:47:26,274 INFO L78 Accepts]: Start accepts. Automaton has 38885 states and 206748 transitions. Word has length 27 [2020-09-17 01:47:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:26,275 INFO L479 AbstractCegarLoop]: Abstraction has 38885 states and 206748 transitions. [2020-09-17 01:47:26,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:47:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 38885 states and 206748 transitions. [2020-09-17 01:47:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:26,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:26,280 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] [2020-09-17 01:47:26,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2020-09-17 01:47:26,280 INFO L427 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]=== [2020-09-17 01:47:26,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:26,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1956167485, now seen corresponding path program 14 times [2020-09-17 01:47:26,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:26,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045700826] [2020-09-17 01:47:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:26,391 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:26,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045700826] [2020-09-17 01:47:26,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:47:26,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:47:26,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314207440] [2020-09-17 01:47:26,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:47:26,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:26,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:47:26,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:47:26,393 INFO L87 Difference]: Start difference. First operand 38885 states and 206748 transitions. Second operand 11 states. [2020-09-17 01:47:30,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:30,144 INFO L93 Difference]: Finished difference Result 182770 states and 797712 transitions. [2020-09-17 01:47:30,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:30,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:47:30,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:30,685 INFO L225 Difference]: With dead ends: 182770 [2020-09-17 01:47:30,685 INFO L226 Difference]: Without dead ends: 182746 [2020-09-17 01:47:30,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:47:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182746 states. [2020-09-17 01:47:35,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182746 to 38499. [2020-09-17 01:47:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38499 states. [2020-09-17 01:47:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38499 states to 38499 states and 204735 transitions. [2020-09-17 01:47:35,356 INFO L78 Accepts]: Start accepts. Automaton has 38499 states and 204735 transitions. Word has length 27 [2020-09-17 01:47:35,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:35,356 INFO L479 AbstractCegarLoop]: Abstraction has 38499 states and 204735 transitions. [2020-09-17 01:47:35,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:47:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 38499 states and 204735 transitions. [2020-09-17 01:47:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:35,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:35,362 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] [2020-09-17 01:47:35,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2020-09-17 01:47:35,362 INFO L427 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]=== [2020-09-17 01:47:35,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:35,362 INFO L82 PathProgramCache]: Analyzing trace with hash -690385405, now seen corresponding path program 15 times [2020-09-17 01:47:35,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:35,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238016464] [2020-09-17 01:47:35,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:35,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238016464] [2020-09-17 01:47:35,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:47:35,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:47:35,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215930634] [2020-09-17 01:47:35,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:47:35,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:35,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:47:35,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:47:35,479 INFO L87 Difference]: Start difference. First operand 38499 states and 204735 transitions. Second operand 11 states. [2020-09-17 01:47:37,355 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 10 [2020-09-17 01:47:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:40,229 INFO L93 Difference]: Finished difference Result 181153 states and 790470 transitions. [2020-09-17 01:47:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:40,230 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:47:40,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:40,836 INFO L225 Difference]: With dead ends: 181153 [2020-09-17 01:47:40,837 INFO L226 Difference]: Without dead ends: 181135 [2020-09-17 01:47:40,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1561 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:47:43,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181135 states. [2020-09-17 01:47:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181135 to 38208. [2020-09-17 01:47:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38208 states. [2020-09-17 01:47:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38208 states to 38208 states and 203398 transitions. [2020-09-17 01:47:45,121 INFO L78 Accepts]: Start accepts. Automaton has 38208 states and 203398 transitions. Word has length 27 [2020-09-17 01:47:45,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:45,121 INFO L479 AbstractCegarLoop]: Abstraction has 38208 states and 203398 transitions. [2020-09-17 01:47:45,121 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:47:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 38208 states and 203398 transitions. [2020-09-17 01:47:45,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:45,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:45,126 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] [2020-09-17 01:47:45,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2020-09-17 01:47:45,126 INFO L427 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]=== [2020-09-17 01:47:45,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:45,126 INFO L82 PathProgramCache]: Analyzing trace with hash -667857085, now seen corresponding path program 16 times [2020-09-17 01:47:45,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:45,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778287074] [2020-09-17 01:47:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:45,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778287074] [2020-09-17 01:47:45,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:47:45,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:47:45,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818682169] [2020-09-17 01:47:45,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:47:45,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:45,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:47:45,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:47:45,240 INFO L87 Difference]: Start difference. First operand 38208 states and 203398 transitions. Second operand 11 states. [2020-09-17 01:47:46,218 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-09-17 01:47:49,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:49,046 INFO L93 Difference]: Finished difference Result 181957 states and 793915 transitions. [2020-09-17 01:47:49,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:47:49,047 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:47:49,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:49,585 INFO L225 Difference]: With dead ends: 181957 [2020-09-17 01:47:49,586 INFO L226 Difference]: Without dead ends: 181933 [2020-09-17 01:47:49,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:47:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181933 states. [2020-09-17 01:47:54,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181933 to 37822. [2020-09-17 01:47:54,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37822 states. [2020-09-17 01:47:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37822 states to 37822 states and 201385 transitions. [2020-09-17 01:47:54,309 INFO L78 Accepts]: Start accepts. Automaton has 37822 states and 201385 transitions. Word has length 27 [2020-09-17 01:47:54,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:47:54,310 INFO L479 AbstractCegarLoop]: Abstraction has 37822 states and 201385 transitions. [2020-09-17 01:47:54,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:47:54,310 INFO L276 IsEmpty]: Start isEmpty. Operand 37822 states and 201385 transitions. [2020-09-17 01:47:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:47:54,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:47:54,314 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:47:54,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2020-09-17 01:47:54,314 INFO L427 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]=== [2020-09-17 01:47:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:47:54,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1485355099, now seen corresponding path program 1 times [2020-09-17 01:47:54,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:47:54,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413758362] [2020-09-17 01:47:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:47:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:54,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413758362] [2020-09-17 01:47:54,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032808984] [2020-09-17 01:47:54,384 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 [2020-09-17 01:47:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:47:54,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-17 01:47:54,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:47:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:47:57,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:47:57,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-09-17 01:47:57,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915852004] [2020-09-17 01:47:57,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 01:47:57,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:47:57,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 01:47:57,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-17 01:47:57,165 INFO L87 Difference]: Start difference. First operand 37822 states and 201385 transitions. Second operand 9 states. [2020-09-17 01:47:58,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:47:58,017 INFO L93 Difference]: Finished difference Result 90020 states and 438095 transitions. [2020-09-17 01:47:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:47:58,018 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-17 01:47:58,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:47:58,339 INFO L225 Difference]: With dead ends: 90020 [2020-09-17 01:47:58,340 INFO L226 Difference]: Without dead ends: 89960 [2020-09-17 01:47:58,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-09-17 01:47:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89960 states. [2020-09-17 01:48:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89960 to 39411. [2020-09-17 01:48:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39411 states. [2020-09-17 01:48:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 210063 transitions. [2020-09-17 01:48:01,495 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 210063 transitions. Word has length 27 [2020-09-17 01:48:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:01,495 INFO L479 AbstractCegarLoop]: Abstraction has 39411 states and 210063 transitions. [2020-09-17 01:48:01,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 01:48:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 210063 transitions. [2020-09-17 01:48:01,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:01,501 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:01,501 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] [2020-09-17 01:48:01,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2020-09-17 01:48:01,702 INFO L427 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]=== [2020-09-17 01:48:01,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:01,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1781288445, now seen corresponding path program 17 times [2020-09-17 01:48:01,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:01,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196734266] [2020-09-17 01:48:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:01,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:48:01,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196734266] [2020-09-17 01:48:01,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:01,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:48:01,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394803745] [2020-09-17 01:48:01,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:48:01,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:01,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:48:01,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:48:01,812 INFO L87 Difference]: Start difference. First operand 39411 states and 210063 transitions. Second operand 11 states. [2020-09-17 01:48:04,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:04,833 INFO L93 Difference]: Finished difference Result 181463 states and 790579 transitions. [2020-09-17 01:48:04,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:48:04,834 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:48:04,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:05,375 INFO L225 Difference]: With dead ends: 181463 [2020-09-17 01:48:05,375 INFO L226 Difference]: Without dead ends: 181445 [2020-09-17 01:48:05,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:48:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181445 states. [2020-09-17 01:48:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181445 to 39508. [2020-09-17 01:48:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39508 states. [2020-09-17 01:48:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39508 states to 39508 states and 210536 transitions. [2020-09-17 01:48:11,119 INFO L78 Accepts]: Start accepts. Automaton has 39508 states and 210536 transitions. Word has length 27 [2020-09-17 01:48:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:11,120 INFO L479 AbstractCegarLoop]: Abstraction has 39508 states and 210536 transitions. [2020-09-17 01:48:11,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:48:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 39508 states and 210536 transitions. [2020-09-17 01:48:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:11,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:11,125 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] [2020-09-17 01:48:11,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2020-09-17 01:48:11,126 INFO L427 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]=== [2020-09-17 01:48:11,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:11,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1779949245, now seen corresponding path program 18 times [2020-09-17 01:48:11,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:11,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440396830] [2020-09-17 01:48:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:11,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:48:11,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440396830] [2020-09-17 01:48:11,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:11,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:48:11,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212394519] [2020-09-17 01:48:11,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:48:11,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:11,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:48:11,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:48:11,247 INFO L87 Difference]: Start difference. First operand 39508 states and 210536 transitions. Second operand 11 states. [2020-09-17 01:48:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:14,360 INFO L93 Difference]: Finished difference Result 181054 states and 788837 transitions. [2020-09-17 01:48:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:48:14,361 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:48:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:14,908 INFO L225 Difference]: With dead ends: 181054 [2020-09-17 01:48:14,908 INFO L226 Difference]: Without dead ends: 181026 [2020-09-17 01:48:14,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:48:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181026 states. [2020-09-17 01:48:22,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181026 to 39280. [2020-09-17 01:48:22,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39280 states. [2020-09-17 01:48:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39280 states to 39280 states and 209319 transitions. [2020-09-17 01:48:23,223 INFO L78 Accepts]: Start accepts. Automaton has 39280 states and 209319 transitions. Word has length 27 [2020-09-17 01:48:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:23,224 INFO L479 AbstractCegarLoop]: Abstraction has 39280 states and 209319 transitions. [2020-09-17 01:48:23,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:48:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 39280 states and 209319 transitions. [2020-09-17 01:48:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:23,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:23,229 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:48:23,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2020-09-17 01:48:23,229 INFO L427 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]=== [2020-09-17 01:48:23,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:23,230 INFO L82 PathProgramCache]: Analyzing trace with hash -639654315, now seen corresponding path program 2 times [2020-09-17 01:48:23,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:23,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706445496] [2020-09-17 01:48:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:48:23,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706445496] [2020-09-17 01:48:23,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:23,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:48:23,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826997020] [2020-09-17 01:48:23,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:48:23,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:23,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:48:23,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:48:23,297 INFO L87 Difference]: Start difference. First operand 39280 states and 209319 transitions. Second operand 7 states. [2020-09-17 01:48:24,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:24,104 INFO L93 Difference]: Finished difference Result 90032 states and 438659 transitions. [2020-09-17 01:48:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:48:24,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-17 01:48:24,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:24,436 INFO L225 Difference]: With dead ends: 90032 [2020-09-17 01:48:24,437 INFO L226 Difference]: Without dead ends: 89955 [2020-09-17 01:48:24,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:48:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89955 states. [2020-09-17 01:48:27,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89955 to 40208. [2020-09-17 01:48:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40208 states. [2020-09-17 01:48:27,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40208 states to 40208 states and 214272 transitions. [2020-09-17 01:48:27,882 INFO L78 Accepts]: Start accepts. Automaton has 40208 states and 214272 transitions. Word has length 27 [2020-09-17 01:48:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:27,883 INFO L479 AbstractCegarLoop]: Abstraction has 40208 states and 214272 transitions. [2020-09-17 01:48:27,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:48:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 40208 states and 214272 transitions. [2020-09-17 01:48:27,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:27,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:27,888 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:48:27,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2020-09-17 01:48:27,888 INFO L427 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]=== [2020-09-17 01:48:27,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:27,889 INFO L82 PathProgramCache]: Analyzing trace with hash -639652920, now seen corresponding path program 2 times [2020-09-17 01:48:27,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:27,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515202451] [2020-09-17 01:48:27,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:27,959 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:48:27,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515202451] [2020-09-17 01:48:27,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:27,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:48:27,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470743920] [2020-09-17 01:48:27,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:48:27,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:27,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:48:27,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:48:27,960 INFO L87 Difference]: Start difference. First operand 40208 states and 214272 transitions. Second operand 7 states. [2020-09-17 01:48:28,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:28,748 INFO L93 Difference]: Finished difference Result 90501 states and 440366 transitions. [2020-09-17 01:48:28,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:48:28,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-17 01:48:28,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:29,048 INFO L225 Difference]: With dead ends: 90501 [2020-09-17 01:48:29,049 INFO L226 Difference]: Without dead ends: 90424 [2020-09-17 01:48:29,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:48:30,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90424 states. [2020-09-17 01:48:32,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90424 to 40817. [2020-09-17 01:48:32,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40817 states. [2020-09-17 01:48:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40817 states to 40817 states and 217501 transitions. [2020-09-17 01:48:32,308 INFO L78 Accepts]: Start accepts. Automaton has 40817 states and 217501 transitions. Word has length 27 [2020-09-17 01:48:32,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:32,309 INFO L479 AbstractCegarLoop]: Abstraction has 40817 states and 217501 transitions. [2020-09-17 01:48:32,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:48:32,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40817 states and 217501 transitions. [2020-09-17 01:48:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:32,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:32,314 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:48:32,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2020-09-17 01:48:32,314 INFO L427 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]=== [2020-09-17 01:48:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:32,315 INFO L82 PathProgramCache]: Analyzing trace with hash -639668389, now seen corresponding path program 2 times [2020-09-17 01:48:32,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:32,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762288142] [2020-09-17 01:48:32,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:32,382 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:48:32,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762288142] [2020-09-17 01:48:32,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:32,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:48:32,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942292597] [2020-09-17 01:48:32,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:48:32,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:32,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:48:32,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:48:32,383 INFO L87 Difference]: Start difference. First operand 40817 states and 217501 transitions. Second operand 7 states. [2020-09-17 01:48:33,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:33,218 INFO L93 Difference]: Finished difference Result 91389 states and 444541 transitions. [2020-09-17 01:48:33,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:48:33,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-17 01:48:33,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:33,530 INFO L225 Difference]: With dead ends: 91389 [2020-09-17 01:48:33,530 INFO L226 Difference]: Without dead ends: 91312 [2020-09-17 01:48:33,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:48:34,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91312 states. [2020-09-17 01:48:36,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91312 to 41653. [2020-09-17 01:48:36,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41653 states. [2020-09-17 01:48:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41653 states to 41653 states and 221647 transitions. [2020-09-17 01:48:36,821 INFO L78 Accepts]: Start accepts. Automaton has 41653 states and 221647 transitions. Word has length 27 [2020-09-17 01:48:36,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:36,821 INFO L479 AbstractCegarLoop]: Abstraction has 41653 states and 221647 transitions. [2020-09-17 01:48:36,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:48:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 41653 states and 221647 transitions. [2020-09-17 01:48:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:36,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:36,827 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:48:36,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2020-09-17 01:48:36,827 INFO L427 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]=== [2020-09-17 01:48:36,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:36,827 INFO L82 PathProgramCache]: Analyzing trace with hash -639630848, now seen corresponding path program 1 times [2020-09-17 01:48:36,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:36,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330594821] [2020-09-17 01:48:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:36,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:48:36,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330594821] [2020-09-17 01:48:36,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:36,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:48:36,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110434305] [2020-09-17 01:48:36,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:48:36,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:36,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:48:36,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:48:36,895 INFO L87 Difference]: Start difference. First operand 41653 states and 221647 transitions. Second operand 7 states. [2020-09-17 01:48:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:37,769 INFO L93 Difference]: Finished difference Result 96066 states and 468402 transitions. [2020-09-17 01:48:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:48:37,770 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-17 01:48:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:38,144 INFO L225 Difference]: With dead ends: 96066 [2020-09-17 01:48:38,145 INFO L226 Difference]: Without dead ends: 95989 [2020-09-17 01:48:38,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:48:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95989 states. [2020-09-17 01:48:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95989 to 44034. [2020-09-17 01:48:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44034 states. [2020-09-17 01:48:41,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44034 states to 44034 states and 234037 transitions. [2020-09-17 01:48:41,572 INFO L78 Accepts]: Start accepts. Automaton has 44034 states and 234037 transitions. Word has length 27 [2020-09-17 01:48:41,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:41,572 INFO L479 AbstractCegarLoop]: Abstraction has 44034 states and 234037 transitions. [2020-09-17 01:48:41,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:48:41,573 INFO L276 IsEmpty]: Start isEmpty. Operand 44034 states and 234037 transitions. [2020-09-17 01:48:41,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:41,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:41,578 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:48:41,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2020-09-17 01:48:41,579 INFO L427 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]=== [2020-09-17 01:48:41,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:41,579 INFO L82 PathProgramCache]: Analyzing trace with hash -616120448, now seen corresponding path program 2 times [2020-09-17 01:48:41,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:41,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956914898] [2020-09-17 01:48:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-17 01:48:41,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956914898] [2020-09-17 01:48:41,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:41,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 01:48:41,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029806879] [2020-09-17 01:48:41,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-17 01:48:41,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:41,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-17 01:48:41,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:48:41,648 INFO L87 Difference]: Start difference. First operand 44034 states and 234037 transitions. Second operand 7 states. [2020-09-17 01:48:42,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:42,526 INFO L93 Difference]: Finished difference Result 97335 states and 474289 transitions. [2020-09-17 01:48:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 01:48:42,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-17 01:48:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:42,874 INFO L225 Difference]: With dead ends: 97335 [2020-09-17 01:48:42,874 INFO L226 Difference]: Without dead ends: 97258 [2020-09-17 01:48:42,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-09-17 01:48:44,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97258 states. [2020-09-17 01:48:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97258 to 45832. [2020-09-17 01:48:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45832 states. [2020-09-17 01:48:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45832 states to 45832 states and 243883 transitions. [2020-09-17 01:48:46,292 INFO L78 Accepts]: Start accepts. Automaton has 45832 states and 243883 transitions. Word has length 27 [2020-09-17 01:48:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:48:46,293 INFO L479 AbstractCegarLoop]: Abstraction has 45832 states and 243883 transitions. [2020-09-17 01:48:46,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-17 01:48:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 45832 states and 243883 transitions. [2020-09-17 01:48:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:48:46,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:48:46,299 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] [2020-09-17 01:48:46,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2020-09-17 01:48:46,299 INFO L427 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]=== [2020-09-17 01:48:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:48:46,299 INFO L82 PathProgramCache]: Analyzing trace with hash -263020797, now seen corresponding path program 19 times [2020-09-17 01:48:46,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:48:46,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783497868] [2020-09-17 01:48:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:48:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:48:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:48:46,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783497868] [2020-09-17 01:48:46,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:48:46,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:48:46,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6354817] [2020-09-17 01:48:46,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:48:46,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:48:46,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:48:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:48:46,410 INFO L87 Difference]: Start difference. First operand 45832 states and 243883 transitions. Second operand 11 states. [2020-09-17 01:48:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:48:50,332 INFO L93 Difference]: Finished difference Result 206462 states and 913897 transitions. [2020-09-17 01:48:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:48:50,333 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:48:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:48:50,990 INFO L225 Difference]: With dead ends: 206462 [2020-09-17 01:48:50,990 INFO L226 Difference]: Without dead ends: 206438 [2020-09-17 01:48:50,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:48:53,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206438 states. [2020-09-17 01:49:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206438 to 45730. [2020-09-17 01:49:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45730 states. [2020-09-17 01:49:00,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45730 states to 45730 states and 243333 transitions. [2020-09-17 01:49:00,331 INFO L78 Accepts]: Start accepts. Automaton has 45730 states and 243333 transitions. Word has length 27 [2020-09-17 01:49:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:00,332 INFO L479 AbstractCegarLoop]: Abstraction has 45730 states and 243333 transitions. [2020-09-17 01:49:00,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45730 states and 243333 transitions. [2020-09-17 01:49:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:49:00,337 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:00,337 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] [2020-09-17 01:49:00,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2020-09-17 01:49:00,338 INFO L427 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]=== [2020-09-17 01:49:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:00,338 INFO L82 PathProgramCache]: Analyzing trace with hash -277871037, now seen corresponding path program 20 times [2020-09-17 01:49:00,338 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:00,339 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487533000] [2020-09-17 01:49:00,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:00,454 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:49:00,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487533000] [2020-09-17 01:49:00,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:49:00,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:49:00,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204096168] [2020-09-17 01:49:00,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:00,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:00,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:00,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:00,456 INFO L87 Difference]: Start difference. First operand 45730 states and 243333 transitions. Second operand 11 states. [2020-09-17 01:49:04,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:49:04,182 INFO L93 Difference]: Finished difference Result 205970 states and 911791 transitions. [2020-09-17 01:49:04,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:49:04,183 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:49:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:49:04,821 INFO L225 Difference]: With dead ends: 205970 [2020-09-17 01:49:04,822 INFO L226 Difference]: Without dead ends: 205940 [2020-09-17 01:49:04,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1548 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:49:07,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205940 states. [2020-09-17 01:49:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205940 to 45335. [2020-09-17 01:49:10,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45335 states. [2020-09-17 01:49:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45335 states to 45335 states and 241261 transitions. [2020-09-17 01:49:11,260 INFO L78 Accepts]: Start accepts. Automaton has 45335 states and 241261 transitions. Word has length 27 [2020-09-17 01:49:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:11,260 INFO L479 AbstractCegarLoop]: Abstraction has 45335 states and 241261 transitions. [2020-09-17 01:49:11,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:11,260 INFO L276 IsEmpty]: Start isEmpty. Operand 45335 states and 241261 transitions. [2020-09-17 01:49:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:49:11,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:11,267 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] [2020-09-17 01:49:11,267 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2020-09-17 01:49:11,268 INFO L427 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]=== [2020-09-17 01:49:11,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1023950403, now seen corresponding path program 21 times [2020-09-17 01:49:11,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:11,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577273165] [2020-09-17 01:49:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:11,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:49:11,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577273165] [2020-09-17 01:49:11,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:49:11,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:49:11,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087331320] [2020-09-17 01:49:11,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:11,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:11,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:11,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:11,397 INFO L87 Difference]: Start difference. First operand 45335 states and 241261 transitions. Second operand 11 states. [2020-09-17 01:49:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:49:14,627 INFO L93 Difference]: Finished difference Result 205404 states and 909139 transitions. [2020-09-17 01:49:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:49:14,628 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:49:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:49:15,255 INFO L225 Difference]: With dead ends: 205404 [2020-09-17 01:49:15,255 INFO L226 Difference]: Without dead ends: 205380 [2020-09-17 01:49:15,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:49:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205380 states. [2020-09-17 01:49:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205380 to 45076. [2020-09-17 01:49:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45076 states. [2020-09-17 01:49:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45076 states to 45076 states and 240064 transitions. [2020-09-17 01:49:24,364 INFO L78 Accepts]: Start accepts. Automaton has 45076 states and 240064 transitions. Word has length 27 [2020-09-17 01:49:24,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:24,364 INFO L479 AbstractCegarLoop]: Abstraction has 45076 states and 240064 transitions. [2020-09-17 01:49:24,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:24,364 INFO L276 IsEmpty]: Start isEmpty. Operand 45076 states and 240064 transitions. [2020-09-17 01:49:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:49:24,370 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:24,370 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] [2020-09-17 01:49:24,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2020-09-17 01:49:24,370 INFO L427 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]=== [2020-09-17 01:49:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1010439363, now seen corresponding path program 22 times [2020-09-17 01:49:24,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:24,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581205816] [2020-09-17 01:49:24,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:49:24,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581205816] [2020-09-17 01:49:24,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:49:24,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:49:24,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941073974] [2020-09-17 01:49:24,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:24,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:24,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:24,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:24,485 INFO L87 Difference]: Start difference. First operand 45076 states and 240064 transitions. Second operand 11 states. [2020-09-17 01:49:27,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:49:27,657 INFO L93 Difference]: Finished difference Result 205143 states and 907975 transitions. [2020-09-17 01:49:27,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:49:27,657 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:49:27,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:49:29,620 INFO L225 Difference]: With dead ends: 205143 [2020-09-17 01:49:29,620 INFO L226 Difference]: Without dead ends: 205113 [2020-09-17 01:49:29,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1562 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:49:31,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205113 states. [2020-09-17 01:49:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205113 to 44685. [2020-09-17 01:49:34,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44685 states. [2020-09-17 01:49:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44685 states to 44685 states and 238000 transitions. [2020-09-17 01:49:34,931 INFO L78 Accepts]: Start accepts. Automaton has 44685 states and 238000 transitions. Word has length 27 [2020-09-17 01:49:34,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:34,931 INFO L479 AbstractCegarLoop]: Abstraction has 44685 states and 238000 transitions. [2020-09-17 01:49:34,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:34,932 INFO L276 IsEmpty]: Start isEmpty. Operand 44685 states and 238000 transitions. [2020-09-17 01:49:34,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:49:34,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:34,937 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] [2020-09-17 01:49:34,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2020-09-17 01:49:34,937 INFO L427 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]=== [2020-09-17 01:49:34,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:34,938 INFO L82 PathProgramCache]: Analyzing trace with hash -377078589, now seen corresponding path program 23 times [2020-09-17 01:49:34,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:34,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711601143] [2020-09-17 01:49:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:35,050 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:49:35,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711601143] [2020-09-17 01:49:35,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:49:35,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:49:35,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474269252] [2020-09-17 01:49:35,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:35,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:35,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:35,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:35,051 INFO L87 Difference]: Start difference. First operand 44685 states and 238000 transitions. Second operand 11 states. [2020-09-17 01:49:39,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:49:39,074 INFO L93 Difference]: Finished difference Result 204573 states and 905311 transitions. [2020-09-17 01:49:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:49:39,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:49:39,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:49:39,706 INFO L225 Difference]: With dead ends: 204573 [2020-09-17 01:49:39,707 INFO L226 Difference]: Without dead ends: 204549 [2020-09-17 01:49:39,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1554 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:49:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204549 states. [2020-09-17 01:49:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204549 to 44434. [2020-09-17 01:49:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44434 states. [2020-09-17 01:49:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44434 states to 44434 states and 236823 transitions. [2020-09-17 01:49:48,857 INFO L78 Accepts]: Start accepts. Automaton has 44434 states and 236823 transitions. Word has length 27 [2020-09-17 01:49:48,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:48,857 INFO L479 AbstractCegarLoop]: Abstraction has 44434 states and 236823 transitions. [2020-09-17 01:49:48,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:48,857 INFO L276 IsEmpty]: Start isEmpty. Operand 44434 states and 236823 transitions. [2020-09-17 01:49:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-17 01:49:48,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:48,863 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] [2020-09-17 01:49:48,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2020-09-17 01:49:48,863 INFO L427 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]=== [2020-09-17 01:49:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:48,863 INFO L82 PathProgramCache]: Analyzing trace with hash -375739389, now seen corresponding path program 24 times [2020-09-17 01:49:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:48,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444405391] [2020-09-17 01:49:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-17 01:49:48,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444405391] [2020-09-17 01:49:48,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:49:48,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-17 01:49:48,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033596372] [2020-09-17 01:49:48,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:48,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:48,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:48,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:48,984 INFO L87 Difference]: Start difference. First operand 44434 states and 236823 transitions. Second operand 11 states. [2020-09-17 01:49:52,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:49:52,419 INFO L93 Difference]: Finished difference Result 204089 states and 903225 transitions. [2020-09-17 01:49:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-17 01:49:52,420 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-09-17 01:49:52,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:49:54,192 INFO L225 Difference]: With dead ends: 204089 [2020-09-17 01:49:54,192 INFO L226 Difference]: Without dead ends: 204054 [2020-09-17 01:49:54,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1564 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=941, Invalid=3751, Unknown=0, NotChecked=0, Total=4692 [2020-09-17 01:49:56,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204054 states. [2020-09-17 01:49:59,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204054 to 43794. [2020-09-17 01:49:59,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43794 states. [2020-09-17 01:49:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43794 states to 43794 states and 233791 transitions. [2020-09-17 01:49:59,256 INFO L78 Accepts]: Start accepts. Automaton has 43794 states and 233791 transitions. Word has length 27 [2020-09-17 01:49:59,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:49:59,257 INFO L479 AbstractCegarLoop]: Abstraction has 43794 states and 233791 transitions. [2020-09-17 01:49:59,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:49:59,257 INFO L276 IsEmpty]: Start isEmpty. Operand 43794 states and 233791 transitions. [2020-09-17 01:49:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:49:59,266 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:49:59,266 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:49:59,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2020-09-17 01:49:59,266 INFO L427 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]=== [2020-09-17 01:49:59,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:49:59,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1079064756, now seen corresponding path program 1 times [2020-09-17 01:49:59,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:49:59,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832430484] [2020-09-17 01:49:59,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:49:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:49:59,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832430484] [2020-09-17 01:49:59,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632142909] [2020-09-17 01:49:59,361 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 [2020-09-17 01:49:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:49:59,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:49:59,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:49:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:49:59,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:49:59,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:49:59,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103443896] [2020-09-17 01:49:59,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:49:59,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:49:59,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:49:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:49:59,515 INFO L87 Difference]: Start difference. First operand 43794 states and 233791 transitions. Second operand 11 states. [2020-09-17 01:50:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:01,954 INFO L93 Difference]: Finished difference Result 139868 states and 649854 transitions. [2020-09-17 01:50:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:01,955 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:02,444 INFO L225 Difference]: With dead ends: 139868 [2020-09-17 01:50:02,445 INFO L226 Difference]: Without dead ends: 139824 [2020-09-17 01:50:02,445 INFO L675 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 [2020-09-17 01:50:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139824 states. [2020-09-17 01:50:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139824 to 44208. [2020-09-17 01:50:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44208 states. [2020-09-17 01:50:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44208 states to 44208 states and 235737 transitions. [2020-09-17 01:50:09,393 INFO L78 Accepts]: Start accepts. Automaton has 44208 states and 235737 transitions. Word has length 29 [2020-09-17 01:50:09,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:09,393 INFO L479 AbstractCegarLoop]: Abstraction has 44208 states and 235737 transitions. [2020-09-17 01:50:09,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:09,393 INFO L276 IsEmpty]: Start isEmpty. Operand 44208 states and 235737 transitions. [2020-09-17 01:50:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:09,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:09,403 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:09,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149 [2020-09-17 01:50:09,604 INFO L427 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]=== [2020-09-17 01:50:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:09,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1079080225, now seen corresponding path program 1 times [2020-09-17 01:50:09,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:09,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294591411] [2020-09-17 01:50:09,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:09,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294591411] [2020-09-17 01:50:09,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200763823] [2020-09-17 01:50:09,694 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 [2020-09-17 01:50:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:09,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:09,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:09,853 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:09,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:09,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:09,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469611347] [2020-09-17 01:50:09,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:09,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:09,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:09,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:09,855 INFO L87 Difference]: Start difference. First operand 44208 states and 235737 transitions. Second operand 11 states. [2020-09-17 01:50:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:11,704 INFO L93 Difference]: Finished difference Result 138663 states and 644549 transitions. [2020-09-17 01:50:11,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:11,705 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:13,140 INFO L225 Difference]: With dead ends: 138663 [2020-09-17 01:50:13,140 INFO L226 Difference]: Without dead ends: 138619 [2020-09-17 01:50:13,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:50:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138619 states. [2020-09-17 01:50:17,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138619 to 44346. [2020-09-17 01:50:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44346 states. [2020-09-17 01:50:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44346 states to 44346 states and 236212 transitions. [2020-09-17 01:50:17,289 INFO L78 Accepts]: Start accepts. Automaton has 44346 states and 236212 transitions. Word has length 29 [2020-09-17 01:50:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:17,289 INFO L479 AbstractCegarLoop]: Abstraction has 44346 states and 236212 transitions. [2020-09-17 01:50:17,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 44346 states and 236212 transitions. [2020-09-17 01:50:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:17,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:17,314 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:17,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:50:17,515 INFO L427 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]=== [2020-09-17 01:50:17,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:17,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1079042684, now seen corresponding path program 1 times [2020-09-17 01:50:17,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:17,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685968308] [2020-09-17 01:50:17,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:17,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685968308] [2020-09-17 01:50:17,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745086159] [2020-09-17 01:50:17,612 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 [2020-09-17 01:50:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:17,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:17,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:17,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:17,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:17,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102310458] [2020-09-17 01:50:17,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:17,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:17,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:17,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:17,774 INFO L87 Difference]: Start difference. First operand 44346 states and 236212 transitions. Second operand 11 states. [2020-09-17 01:50:19,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:19,539 INFO L93 Difference]: Finished difference Result 137475 states and 638613 transitions. [2020-09-17 01:50:19,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:19,539 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:19,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:21,028 INFO L225 Difference]: With dead ends: 137475 [2020-09-17 01:50:21,028 INFO L226 Difference]: Without dead ends: 137431 [2020-09-17 01:50:21,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:50:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137431 states. [2020-09-17 01:50:27,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137431 to 44001. [2020-09-17 01:50:27,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44001 states. [2020-09-17 01:50:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44001 states to 44001 states and 234197 transitions. [2020-09-17 01:50:27,908 INFO L78 Accepts]: Start accepts. Automaton has 44001 states and 234197 transitions. Word has length 29 [2020-09-17 01:50:27,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:27,909 INFO L479 AbstractCegarLoop]: Abstraction has 44001 states and 234197 transitions. [2020-09-17 01:50:27,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:27,909 INFO L276 IsEmpty]: Start isEmpty. Operand 44001 states and 234197 transitions. [2020-09-17 01:50:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:27,918 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:27,918 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:28,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:50:28,119 INFO L427 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]=== [2020-09-17 01:50:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:28,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1076743476, now seen corresponding path program 2 times [2020-09-17 01:50:28,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:28,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404034394] [2020-09-17 01:50:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:28,213 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:28,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404034394] [2020-09-17 01:50:28,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617155444] [2020-09-17 01:50:28,214 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 [2020-09-17 01:50:28,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:50:28,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:50:28,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:28,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:28,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:28,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:28,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762356190] [2020-09-17 01:50:28,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:28,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:28,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:28,371 INFO L87 Difference]: Start difference. First operand 44001 states and 234197 transitions. Second operand 11 states. [2020-09-17 01:50:30,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:30,198 INFO L93 Difference]: Finished difference Result 137660 states and 639047 transitions. [2020-09-17 01:50:30,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:30,199 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:30,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:31,614 INFO L225 Difference]: With dead ends: 137660 [2020-09-17 01:50:31,614 INFO L226 Difference]: Without dead ends: 137614 [2020-09-17 01:50:31,614 INFO L675 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 [2020-09-17 01:50:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137614 states. [2020-09-17 01:50:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137614 to 43606. [2020-09-17 01:50:35,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43606 states. [2020-09-17 01:50:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43606 states to 43606 states and 231805 transitions. [2020-09-17 01:50:35,788 INFO L78 Accepts]: Start accepts. Automaton has 43606 states and 231805 transitions. Word has length 29 [2020-09-17 01:50:35,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:35,788 INFO L479 AbstractCegarLoop]: Abstraction has 43606 states and 231805 transitions. [2020-09-17 01:50:35,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 43606 states and 231805 transitions. [2020-09-17 01:50:35,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:35,797 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:35,798 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:35,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:50:35,999 INFO L427 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]=== [2020-09-17 01:50:35,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:35,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1091609185, now seen corresponding path program 2 times [2020-09-17 01:50:36,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:36,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186624906] [2020-09-17 01:50:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:36,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186624906] [2020-09-17 01:50:36,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538506497] [2020-09-17 01:50:36,094 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 [2020-09-17 01:50:36,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:50:36,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:50:36,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:36,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:36,251 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:36,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:36,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:36,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130634561] [2020-09-17 01:50:36,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:36,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:36,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:36,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:36,253 INFO L87 Difference]: Start difference. First operand 43606 states and 231805 transitions. Second operand 11 states. [2020-09-17 01:50:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:38,805 INFO L93 Difference]: Finished difference Result 136227 states and 631974 transitions. [2020-09-17 01:50:38,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:38,806 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:39,283 INFO L225 Difference]: With dead ends: 136227 [2020-09-17 01:50:39,284 INFO L226 Difference]: Without dead ends: 136181 [2020-09-17 01:50:39,284 INFO L675 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 [2020-09-17 01:50:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136181 states. [2020-09-17 01:50:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136181 to 43334. [2020-09-17 01:50:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43334 states. [2020-09-17 01:50:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43334 states to 43334 states and 230138 transitions. [2020-09-17 01:50:43,447 INFO L78 Accepts]: Start accepts. Automaton has 43334 states and 230138 transitions. Word has length 29 [2020-09-17 01:50:43,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:43,447 INFO L479 AbstractCegarLoop]: Abstraction has 43334 states and 230138 transitions. [2020-09-17 01:50:43,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:43,448 INFO L276 IsEmpty]: Start isEmpty. Operand 43334 states and 230138 transitions. [2020-09-17 01:50:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:43,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:43,457 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:43,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:50:43,663 INFO L427 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]=== [2020-09-17 01:50:43,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1055532284, now seen corresponding path program 2 times [2020-09-17 01:50:43,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:43,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481788713] [2020-09-17 01:50:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:43,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481788713] [2020-09-17 01:50:43,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35315324] [2020-09-17 01:50:43,765 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 [2020-09-17 01:50:43,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-17 01:50:43,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:50:43,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:43,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-17 01:50:43,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:43,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:43,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593425689] [2020-09-17 01:50:43,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:43,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:43,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:43,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:43,919 INFO L87 Difference]: Start difference. First operand 43334 states and 230138 transitions. Second operand 11 states. [2020-09-17 01:50:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:46,416 INFO L93 Difference]: Finished difference Result 135193 states and 626279 transitions. [2020-09-17 01:50:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:46,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:46,876 INFO L225 Difference]: With dead ends: 135193 [2020-09-17 01:50:46,877 INFO L226 Difference]: Without dead ends: 135147 [2020-09-17 01:50:46,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:50:48,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135147 states. [2020-09-17 01:50:53,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135147 to 43128. [2020-09-17 01:50:53,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43128 states. [2020-09-17 01:50:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43128 states to 43128 states and 228903 transitions. [2020-09-17 01:50:53,758 INFO L78 Accepts]: Start accepts. Automaton has 43128 states and 228903 transitions. Word has length 29 [2020-09-17 01:50:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:50:53,758 INFO L479 AbstractCegarLoop]: Abstraction has 43128 states and 228903 transitions. [2020-09-17 01:50:53,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:50:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 43128 states and 228903 transitions. [2020-09-17 01:50:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:50:53,767 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:50:53,767 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:50:53,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable154 [2020-09-17 01:50:53,968 INFO L427 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]=== [2020-09-17 01:50:53,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:50:53,969 INFO L82 PathProgramCache]: Analyzing trace with hash -233799798, now seen corresponding path program 3 times [2020-09-17 01:50:53,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:50:53,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237977540] [2020-09-17 01:50:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:50:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:50:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:50:54,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237977540] [2020-09-17 01:50:54,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454989108] [2020-09-17 01:50:54,066 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 [2020-09-17 01:50:54,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-09-17 01:50:54,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:50:54,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:50:54,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:50:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:50:54,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:50:54,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:50:54,221 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165388049] [2020-09-17 01:50:54,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:50:54,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:50:54,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:50:54,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:50:54,222 INFO L87 Difference]: Start difference. First operand 43128 states and 228903 transitions. Second operand 11 states. [2020-09-17 01:50:56,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:50:56,619 INFO L93 Difference]: Finished difference Result 135315 states and 626661 transitions. [2020-09-17 01:50:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:50:56,620 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:50:56,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:50:57,130 INFO L225 Difference]: With dead ends: 135315 [2020-09-17 01:50:57,130 INFO L226 Difference]: Without dead ends: 135271 [2020-09-17 01:50:57,130 INFO L675 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 [2020-09-17 01:50:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135271 states. [2020-09-17 01:51:01,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135271 to 42904. [2020-09-17 01:51:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42904 states. [2020-09-17 01:51:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42904 states to 42904 states and 227530 transitions. [2020-09-17 01:51:01,345 INFO L78 Accepts]: Start accepts. Automaton has 42904 states and 227530 transitions. Word has length 29 [2020-09-17 01:51:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:51:01,345 INFO L479 AbstractCegarLoop]: Abstraction has 42904 states and 227530 transitions. [2020-09-17 01:51:01,345 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:51:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 42904 states and 227530 transitions. [2020-09-17 01:51:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:51:01,354 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:51:01,354 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:51:01,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable155 [2020-09-17 01:51:01,555 INFO L427 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]=== [2020-09-17 01:51:01,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:51:01,555 INFO L82 PathProgramCache]: Analyzing trace with hash -938803546, now seen corresponding path program 1 times [2020-09-17 01:51:01,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:51:01,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607426871] [2020-09-17 01:51:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:51:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:51:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:51:01,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607426871] [2020-09-17 01:51:01,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991472520] [2020-09-17 01:51:01,651 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 [2020-09-17 01:51:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:51:01,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:51:01,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:51:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-17 01:51:01,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:51:01,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:51:01,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957878107] [2020-09-17 01:51:01,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:51:01,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:51:01,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:51:01,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:51:01,807 INFO L87 Difference]: Start difference. First operand 42904 states and 227530 transitions. Second operand 11 states. [2020-09-17 01:51:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:51:04,454 INFO L93 Difference]: Finished difference Result 140989 states and 654549 transitions. [2020-09-17 01:51:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:51:04,455 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:51:04,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:51:04,932 INFO L225 Difference]: With dead ends: 140989 [2020-09-17 01:51:04,932 INFO L226 Difference]: Without dead ends: 140945 [2020-09-17 01:51:04,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:51:06,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140945 states. [2020-09-17 01:51:08,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140945 to 42930. [2020-09-17 01:51:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42930 states. [2020-09-17 01:51:09,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42930 states to 42930 states and 227280 transitions. [2020-09-17 01:51:09,177 INFO L78 Accepts]: Start accepts. Automaton has 42930 states and 227280 transitions. Word has length 29 [2020-09-17 01:51:09,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:51:09,177 INFO L479 AbstractCegarLoop]: Abstraction has 42930 states and 227280 transitions. [2020-09-17 01:51:09,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 01:51:09,177 INFO L276 IsEmpty]: Start isEmpty. Operand 42930 states and 227280 transitions. [2020-09-17 01:51:09,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-17 01:51:09,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:51:09,186 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:51:09,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-17 01:51:09,387 INFO L427 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]=== [2020-09-17 01:51:09,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:51:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1231154336, now seen corresponding path program 4 times [2020-09-17 01:51:09,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:51:09,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388495172] [2020-09-17 01:51:09,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:51:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:51:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:51:09,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388495172] [2020-09-17 01:51:09,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711788096] [2020-09-17 01:51:09,482 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 [2020-09-17 01:51:09,605 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-17 01:51:09,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-17 01:51:09,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-17 01:51:09,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-17 01:51:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-17 01:51:09,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-17 01:51:09,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-17 01:51:09,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368318286] [2020-09-17 01:51:09,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 01:51:09,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:51:09,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 01:51:09,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-17 01:51:09,633 INFO L87 Difference]: Start difference. First operand 42930 states and 227280 transitions. Second operand 11 states. [2020-09-17 01:51:12,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:51:12,398 INFO L93 Difference]: Finished difference Result 136674 states and 632799 transitions. [2020-09-17 01:51:12,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-17 01:51:12,399 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-09-17 01:51:12,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:51:12,862 INFO L225 Difference]: With dead ends: 136674 [2020-09-17 01:51:12,862 INFO L226 Difference]: Without dead ends: 136628 [2020-09-17 01:51:12,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-09-17 01:51:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136628 states.