/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 20:47:43,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 20:47:43,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 20:47:43,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 20:47:43,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 20:47:43,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 20:47:43,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 20:47:43,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 20:47:43,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 20:47:43,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 20:47:43,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 20:47:43,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 20:47:43,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 20:47:43,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 20:47:43,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 20:47:43,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 20:47:43,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 20:47:43,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 20:47:43,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 20:47:43,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 20:47:43,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 20:47:43,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 20:47:43,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 20:47:43,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 20:47:43,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 20:47:43,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 20:47:43,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 20:47:43,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 20:47:43,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 20:47:43,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 20:47:43,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 20:47:43,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 20:47:43,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 20:47:43,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 20:47:43,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 20:47:43,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 20:47:43,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 20:47:43,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 20:47:43,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 20:47:43,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 20:47:43,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 20:47:43,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 20:47:43,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 20:47:43,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 20:47:43,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 20:47:43,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 20:47:43,260 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 20:47:43,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 20:47:43,261 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 20:47:43,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 20:47:43,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 20:47:43,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 20:47:43,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 20:47:43,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 20:47:43,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 20:47:43,263 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 20:47:43,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 20:47:43,264 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 20:47:43,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 20:47:43,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 20:47:43,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 20:47:43,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 20:47:43,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 20:47:43,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:47:43,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 20:47:43,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 20:47:43,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 20:47:43,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 20:47:43,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 20:47:43,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 20:47:43,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 20:47:43,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 20:47:43,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 20:47:43,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 20:47:43,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 20:47:43,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 20:47:43,574 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-15 20:47:43,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730c6c6da/f431487350fe4d90813030898564be07/FLAG38c73ab37 [2020-10-15 20:47:44,133 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 20:47:44,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-15 20:47:44,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730c6c6da/f431487350fe4d90813030898564be07/FLAG38c73ab37 [2020-10-15 20:47:44,484 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/730c6c6da/f431487350fe4d90813030898564be07 [2020-10-15 20:47:44,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 20:47:44,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 20:47:44,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 20:47:44,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 20:47:44,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 20:47:44,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:47:44" (1/1) ... [2020-10-15 20:47:44,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ce3e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:44, skipping insertion in model container [2020-10-15 20:47:44,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:47:44" (1/1) ... [2020-10-15 20:47:44,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 20:47:44,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 20:47:45,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:47:45,037 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 20:47:45,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 20:47:45,147 INFO L208 MainTranslator]: Completed translation [2020-10-15 20:47:45,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45 WrapperNode [2020-10-15 20:47:45,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 20:47:45,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 20:47:45,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 20:47:45,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 20:47:45,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 20:47:45,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 20:47:45,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 20:47:45,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 20:47:45,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... [2020-10-15 20:47:45,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 20:47:45,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 20:47:45,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 20:47:45,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 20:47:45,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 20:47:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-15 20:47:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-15 20:47:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 20:47:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 20:47:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 20:47:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 20:47:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 20:47:45,282 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 20:47:45,635 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 20:47:45,636 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-15 20:47:45,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:47:45 BoogieIcfgContainer [2020-10-15 20:47:45,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 20:47:45,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 20:47:45,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 20:47:45,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 20:47:45,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:47:44" (1/3) ... [2020-10-15 20:47:45,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7513dbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:47:45, skipping insertion in model container [2020-10-15 20:47:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:47:45" (2/3) ... [2020-10-15 20:47:45,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7513dbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:47:45, skipping insertion in model container [2020-10-15 20:47:45,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:47:45" (3/3) ... [2020-10-15 20:47:45,647 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2020-10-15 20:47:45,658 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 20:47:45,659 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 20:47:45,666 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 20:47:45,667 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 20:47:45,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,694 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,694 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,695 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,695 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,696 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:45,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 20:47:45,728 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:47:45,729 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:47:45,729 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:47:45,729 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:47:45,729 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:47:45,729 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:47:45,729 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:47:45,730 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:47:45,740 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:47:45,743 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-15 20:47:45,746 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-15 20:47:45,748 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions, 69 flow [2020-10-15 20:47:45,779 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2020-10-15 20:47:45,779 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 20:47:45,784 INFO L80 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2020-10-15 20:47:45,786 INFO L117 LiptonReduction]: Number of co-enabled transitions 260 [2020-10-15 20:47:46,617 INFO L132 LiptonReduction]: Checked pairs total: 259 [2020-10-15 20:47:46,617 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-15 20:47:46,624 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-15 20:47:46,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-15 20:47:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-15 20:47:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 20:47:46,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:46,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 20:47:46,643 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:46,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash 168321027, now seen corresponding path program 1 times [2020-10-15 20:47:46,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:46,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812130675] [2020-10-15 20:47:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:46,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812130675] [2020-10-15 20:47:46,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:46,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 20:47:46,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217495213] [2020-10-15 20:47:46,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:47:46,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:46,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:47:46,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:46,931 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-15 20:47:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:46,965 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-15 20:47:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:47:46,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-15 20:47:46,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:46,976 INFO L225 Difference]: With dead ends: 23 [2020-10-15 20:47:46,976 INFO L226 Difference]: Without dead ends: 23 [2020-10-15 20:47:46,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-15 20:47:47,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-15 20:47:47,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-15 20:47:47,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-10-15 20:47:47,014 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 5 [2020-10-15 20:47:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:47,014 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-10-15 20:47:47,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:47:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-10-15 20:47:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 20:47:47,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:47,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 20:47:47,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 20:47:47,016 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash 922984961, now seen corresponding path program 1 times [2020-10-15 20:47:47,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:47,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629395280] [2020-10-15 20:47:47,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:47,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629395280] [2020-10-15 20:47:47,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:47,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 20:47:47,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797080351] [2020-10-15 20:47:47,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 20:47:47,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 20:47:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:47:47,106 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 3 states. [2020-10-15 20:47:47,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:47,125 INFO L93 Difference]: Finished difference Result 19 states and 31 transitions. [2020-10-15 20:47:47,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 20:47:47,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-15 20:47:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:47,130 INFO L225 Difference]: With dead ends: 19 [2020-10-15 20:47:47,131 INFO L226 Difference]: Without dead ends: 19 [2020-10-15 20:47:47,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 20:47:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-15 20:47:47,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-10-15 20:47:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-15 20:47:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-10-15 20:47:47,139 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6 [2020-10-15 20:47:47,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:47,139 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-10-15 20:47:47,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 20:47:47,139 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-10-15 20:47:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 20:47:47,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:47,141 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-15 20:47:47,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 20:47:47,141 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:47,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:47,142 INFO L82 PathProgramCache]: Analyzing trace with hash 922916027, now seen corresponding path program 1 times [2020-10-15 20:47:47,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:47,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116476044] [2020-10-15 20:47:47,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:47,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:47,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:47,216 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:47:47,216 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:47:47,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 20:47:47,217 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:47:47,218 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 20:47:47,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,227 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,234 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,234 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:47,235 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 20:47:47,236 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:47:47,236 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:47:47,236 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:47:47,236 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:47:47,236 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:47:47,236 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:47:47,236 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:47:47,237 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:47:47,239 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:47:47,239 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-15 20:47:47,239 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-15 20:47:47,239 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 104 flow [2020-10-15 20:47:47,254 INFO L129 PetriNetUnfolder]: 7/63 cut-off events. [2020-10-15 20:47:47,254 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 20:47:47,256 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2020-10-15 20:47:47,258 INFO L117 LiptonReduction]: Number of co-enabled transitions 884 [2020-10-15 20:47:47,936 INFO L132 LiptonReduction]: Checked pairs total: 1787 [2020-10-15 20:47:47,936 INFO L134 LiptonReduction]: Total number of compositions: 32 [2020-10-15 20:47:47,937 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions, 54 flow [2020-10-15 20:47:47,959 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 208 states. [2020-10-15 20:47:47,959 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2020-10-15 20:47:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 20:47:47,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:47,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:47,963 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:47,963 INFO L82 PathProgramCache]: Analyzing trace with hash 596115587, now seen corresponding path program 1 times [2020-10-15 20:47:47,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:47,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261097122] [2020-10-15 20:47:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:48,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261097122] [2020-10-15 20:47:48,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:48,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:48,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183813741] [2020-10-15 20:47:48,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:48,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:48,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:48,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:48,037 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 5 states. [2020-10-15 20:47:48,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:48,107 INFO L93 Difference]: Finished difference Result 251 states and 667 transitions. [2020-10-15 20:47:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:48,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-15 20:47:48,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:48,115 INFO L225 Difference]: With dead ends: 251 [2020-10-15 20:47:48,115 INFO L226 Difference]: Without dead ends: 251 [2020-10-15 20:47:48,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-15 20:47:48,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 211. [2020-10-15 20:47:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-15 20:47:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 561 transitions. [2020-10-15 20:47:48,153 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 561 transitions. Word has length 7 [2020-10-15 20:47:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:48,153 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 561 transitions. [2020-10-15 20:47:48,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 561 transitions. [2020-10-15 20:47:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 20:47:48,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:48,155 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-15 20:47:48,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 20:47:48,156 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:48,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:48,156 INFO L82 PathProgramCache]: Analyzing trace with hash -690616091, now seen corresponding path program 1 times [2020-10-15 20:47:48,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:48,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436791803] [2020-10-15 20:47:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:48,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:48,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:48,211 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:47:48,211 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:47:48,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 20:47:48,212 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:47:48,216 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 20:47:48,224 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,225 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,226 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,247 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,250 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,250 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,251 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,251 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,252 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,252 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:48,256 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 20:47:48,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:47:48,257 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:47:48,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:47:48,257 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:47:48,257 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:47:48,257 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:47:48,257 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:47:48,257 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:47:48,259 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:47:48,259 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-15 20:47:48,259 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-15 20:47:48,259 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 141 flow [2020-10-15 20:47:48,276 INFO L129 PetriNetUnfolder]: 10/86 cut-off events. [2020-10-15 20:47:48,277 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 20:47:48,278 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-15 20:47:48,281 INFO L117 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-15 20:47:49,181 INFO L132 LiptonReduction]: Checked pairs total: 4048 [2020-10-15 20:47:49,181 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-15 20:47:49,181 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 75 flow [2020-10-15 20:47:49,238 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1252 states. [2020-10-15 20:47:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states. [2020-10-15 20:47:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 20:47:49,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:49,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:49,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:49,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:49,240 INFO L82 PathProgramCache]: Analyzing trace with hash -34022085, now seen corresponding path program 1 times [2020-10-15 20:47:49,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:49,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737918862] [2020-10-15 20:47:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:49,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737918862] [2020-10-15 20:47:49,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:49,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:49,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732075749] [2020-10-15 20:47:49,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:49,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:49,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:49,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:49,295 INFO L87 Difference]: Start difference. First operand 1252 states. Second operand 5 states. [2020-10-15 20:47:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:49,376 INFO L93 Difference]: Finished difference Result 1547 states and 5625 transitions. [2020-10-15 20:47:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:49,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-15 20:47:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:49,396 INFO L225 Difference]: With dead ends: 1547 [2020-10-15 20:47:49,396 INFO L226 Difference]: Without dead ends: 1547 [2020-10-15 20:47:49,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2020-10-15 20:47:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1213. [2020-10-15 20:47:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1213 states. [2020-10-15 20:47:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 4426 transitions. [2020-10-15 20:47:49,517 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 4426 transitions. Word has length 7 [2020-10-15 20:47:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:49,517 INFO L481 AbstractCegarLoop]: Abstraction has 1213 states and 4426 transitions. [2020-10-15 20:47:49,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 4426 transitions. [2020-10-15 20:47:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 20:47:49,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:49,519 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:49,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 20:47:49,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:49,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:49,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1664535642, now seen corresponding path program 1 times [2020-10-15 20:47:49,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:49,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112066674] [2020-10-15 20:47:49,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:49,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112066674] [2020-10-15 20:47:49,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:49,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:49,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698556637] [2020-10-15 20:47:49,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:47:49,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:49,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:47:49,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:49,589 INFO L87 Difference]: Start difference. First operand 1213 states and 4426 transitions. Second operand 4 states. [2020-10-15 20:47:49,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:49,702 INFO L93 Difference]: Finished difference Result 1516 states and 5554 transitions. [2020-10-15 20:47:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:47:49,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 20:47:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:49,717 INFO L225 Difference]: With dead ends: 1516 [2020-10-15 20:47:49,717 INFO L226 Difference]: Without dead ends: 1516 [2020-10-15 20:47:49,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:49,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-10-15 20:47:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1241. [2020-10-15 20:47:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1241 states. [2020-10-15 20:47:49,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 4558 transitions. [2020-10-15 20:47:49,781 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 4558 transitions. Word has length 9 [2020-10-15 20:47:49,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:49,781 INFO L481 AbstractCegarLoop]: Abstraction has 1241 states and 4558 transitions. [2020-10-15 20:47:49,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:47:49,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 4558 transitions. [2020-10-15 20:47:49,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:47:49,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:49,783 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:49,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 20:47:49,783 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:49,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:49,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1222264884, now seen corresponding path program 1 times [2020-10-15 20:47:49,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:49,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695691605] [2020-10-15 20:47:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:49,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:47:49,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695691605] [2020-10-15 20:47:49,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:49,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:49,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224778665] [2020-10-15 20:47:49,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:49,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:49,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:49,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:49,849 INFO L87 Difference]: Start difference. First operand 1241 states and 4558 transitions. Second operand 5 states. [2020-10-15 20:47:49,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:49,926 INFO L93 Difference]: Finished difference Result 1685 states and 6153 transitions. [2020-10-15 20:47:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:49,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 20:47:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:49,941 INFO L225 Difference]: With dead ends: 1685 [2020-10-15 20:47:49,942 INFO L226 Difference]: Without dead ends: 1685 [2020-10-15 20:47:49,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2020-10-15 20:47:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1404. [2020-10-15 20:47:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-10-15 20:47:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 5142 transitions. [2020-10-15 20:47:50,006 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 5142 transitions. Word has length 10 [2020-10-15 20:47:50,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:50,007 INFO L481 AbstractCegarLoop]: Abstraction has 1404 states and 5142 transitions. [2020-10-15 20:47:50,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:50,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 5142 transitions. [2020-10-15 20:47:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:47:50,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:50,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:50,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 20:47:50,014 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:50,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:50,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2070493020, now seen corresponding path program 1 times [2020-10-15 20:47:50,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:50,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31464254] [2020-10-15 20:47:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:50,131 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:47:50,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31464254] [2020-10-15 20:47:50,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:50,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:50,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411465434] [2020-10-15 20:47:50,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:47:50,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:50,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:47:50,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:50,133 INFO L87 Difference]: Start difference. First operand 1404 states and 5142 transitions. Second operand 4 states. [2020-10-15 20:47:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:50,260 INFO L93 Difference]: Finished difference Result 1785 states and 6555 transitions. [2020-10-15 20:47:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:47:50,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 20:47:50,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:50,279 INFO L225 Difference]: With dead ends: 1785 [2020-10-15 20:47:50,279 INFO L226 Difference]: Without dead ends: 1785 [2020-10-15 20:47:50,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:50,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2020-10-15 20:47:50,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1545. [2020-10-15 20:47:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-10-15 20:47:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 5692 transitions. [2020-10-15 20:47:50,344 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 5692 transitions. Word has length 12 [2020-10-15 20:47:50,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:50,344 INFO L481 AbstractCegarLoop]: Abstraction has 1545 states and 5692 transitions. [2020-10-15 20:47:50,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:47:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 5692 transitions. [2020-10-15 20:47:50,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:47:50,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:50,346 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-15 20:47:50,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 20:47:50,346 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:47:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:50,347 INFO L82 PathProgramCache]: Analyzing trace with hash -853373875, now seen corresponding path program 1 times [2020-10-15 20:47:50,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:50,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613463281] [2020-10-15 20:47:50,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:50,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:50,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:50,383 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:47:50,384 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:47:50,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 20:47:50,384 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:47:50,385 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 20:47:50,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,397 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,400 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,401 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,401 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,402 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,402 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,405 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:50,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 20:47:50,409 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:47:50,410 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:47:50,410 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:47:50,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:47:50,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:47:50,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:47:50,410 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:47:50,410 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:47:50,413 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:47:50,414 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-15 20:47:50,414 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-15 20:47:50,414 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions, 180 flow [2020-10-15 20:47:50,431 INFO L129 PetriNetUnfolder]: 13/109 cut-off events. [2020-10-15 20:47:50,431 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 20:47:50,433 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2020-10-15 20:47:50,436 INFO L117 LiptonReduction]: Number of co-enabled transitions 3224 [2020-10-15 20:47:51,572 INFO L132 LiptonReduction]: Checked pairs total: 7163 [2020-10-15 20:47:51,572 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-15 20:47:51,573 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 35 transitions, 102 flow [2020-10-15 20:47:52,206 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 7516 states. [2020-10-15 20:47:52,206 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states. [2020-10-15 20:47:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 20:47:52,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:52,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:52,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:52,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:52,207 INFO L82 PathProgramCache]: Analyzing trace with hash -242484138, now seen corresponding path program 1 times [2020-10-15 20:47:52,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:52,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666646088] [2020-10-15 20:47:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:52,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666646088] [2020-10-15 20:47:52,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:52,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:52,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835043858] [2020-10-15 20:47:52,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:52,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:52,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:52,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:52,254 INFO L87 Difference]: Start difference. First operand 7516 states. Second operand 5 states. [2020-10-15 20:47:52,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:52,393 INFO L93 Difference]: Finished difference Result 8945 states and 41357 transitions. [2020-10-15 20:47:52,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:52,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-15 20:47:52,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:52,470 INFO L225 Difference]: With dead ends: 8945 [2020-10-15 20:47:52,470 INFO L226 Difference]: Without dead ends: 8945 [2020-10-15 20:47:52,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:52,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8945 states. [2020-10-15 20:47:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8945 to 6943. [2020-10-15 20:47:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6943 states. [2020-10-15 20:47:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 32243 transitions. [2020-10-15 20:47:52,833 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 32243 transitions. Word has length 7 [2020-10-15 20:47:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:52,834 INFO L481 AbstractCegarLoop]: Abstraction has 6943 states and 32243 transitions. [2020-10-15 20:47:52,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 32243 transitions. [2020-10-15 20:47:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 20:47:52,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:52,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:52,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 20:47:52,835 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:52,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:52,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1098996544, now seen corresponding path program 1 times [2020-10-15 20:47:52,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:52,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676352956] [2020-10-15 20:47:52,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:52,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676352956] [2020-10-15 20:47:52,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:52,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:52,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690301583] [2020-10-15 20:47:52,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:47:52,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:52,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:47:52,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:52,926 INFO L87 Difference]: Start difference. First operand 6943 states and 32243 transitions. Second operand 4 states. [2020-10-15 20:47:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:53,214 INFO L93 Difference]: Finished difference Result 9334 states and 43415 transitions. [2020-10-15 20:47:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:47:53,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 20:47:53,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:53,264 INFO L225 Difference]: With dead ends: 9334 [2020-10-15 20:47:53,265 INFO L226 Difference]: Without dead ends: 9334 [2020-10-15 20:47:53,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:53,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9334 states. [2020-10-15 20:47:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9334 to 7850. [2020-10-15 20:47:53,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7850 states. [2020-10-15 20:47:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7850 states to 7850 states and 36573 transitions. [2020-10-15 20:47:53,636 INFO L78 Accepts]: Start accepts. Automaton has 7850 states and 36573 transitions. Word has length 9 [2020-10-15 20:47:53,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:53,636 INFO L481 AbstractCegarLoop]: Abstraction has 7850 states and 36573 transitions. [2020-10-15 20:47:53,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:47:53,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7850 states and 36573 transitions. [2020-10-15 20:47:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:47:53,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:53,637 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:53,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 20:47:53,637 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:53,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1906558445, now seen corresponding path program 1 times [2020-10-15 20:47:53,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:53,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167634160] [2020-10-15 20:47:53,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:53,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:47:53,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167634160] [2020-10-15 20:47:53,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:53,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:53,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298151691] [2020-10-15 20:47:53,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:53,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:53,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:53,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:53,679 INFO L87 Difference]: Start difference. First operand 7850 states and 36573 transitions. Second operand 5 states. [2020-10-15 20:47:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:53,828 INFO L93 Difference]: Finished difference Result 10343 states and 47933 transitions. [2020-10-15 20:47:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:53,829 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 20:47:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:53,870 INFO L225 Difference]: With dead ends: 10343 [2020-10-15 20:47:53,871 INFO L226 Difference]: Without dead ends: 10343 [2020-10-15 20:47:53,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:54,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10343 states. [2020-10-15 20:47:54,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10343 to 8547. [2020-10-15 20:47:54,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8547 states. [2020-10-15 20:47:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8547 states to 8547 states and 39726 transitions. [2020-10-15 20:47:54,405 INFO L78 Accepts]: Start accepts. Automaton has 8547 states and 39726 transitions. Word has length 10 [2020-10-15 20:47:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:54,405 INFO L481 AbstractCegarLoop]: Abstraction has 8547 states and 39726 transitions. [2020-10-15 20:47:54,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:54,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8547 states and 39726 transitions. [2020-10-15 20:47:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:47:54,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:54,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:54,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 20:47:54,407 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:54,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:54,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1748368365, now seen corresponding path program 1 times [2020-10-15 20:47:54,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:54,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683997258] [2020-10-15 20:47:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:47:54,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683997258] [2020-10-15 20:47:54,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:54,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:54,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300906860] [2020-10-15 20:47:54,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:47:54,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:54,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:47:54,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:54,448 INFO L87 Difference]: Start difference. First operand 8547 states and 39726 transitions. Second operand 4 states. [2020-10-15 20:47:54,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:54,638 INFO L93 Difference]: Finished difference Result 11574 states and 53865 transitions. [2020-10-15 20:47:54,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:47:54,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 20:47:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:54,685 INFO L225 Difference]: With dead ends: 11574 [2020-10-15 20:47:54,685 INFO L226 Difference]: Without dead ends: 11574 [2020-10-15 20:47:54,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:47:54,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11574 states. [2020-10-15 20:47:55,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11574 to 10068. [2020-10-15 20:47:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10068 states. [2020-10-15 20:47:55,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10068 states to 10068 states and 46954 transitions. [2020-10-15 20:47:55,202 INFO L78 Accepts]: Start accepts. Automaton has 10068 states and 46954 transitions. Word has length 12 [2020-10-15 20:47:55,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:55,202 INFO L481 AbstractCegarLoop]: Abstraction has 10068 states and 46954 transitions. [2020-10-15 20:47:55,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:47:55,202 INFO L276 IsEmpty]: Start isEmpty. Operand 10068 states and 46954 transitions. [2020-10-15 20:47:55,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:47:55,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:55,203 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:55,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 20:47:55,203 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:55,203 INFO L82 PathProgramCache]: Analyzing trace with hash -63994297, now seen corresponding path program 1 times [2020-10-15 20:47:55,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:55,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393130721] [2020-10-15 20:47:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:55,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:55,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393130721] [2020-10-15 20:47:55,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116356139] [2020-10-15 20:47:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:47:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:55,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 20:47:55,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:47:55,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:47:55,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:47:55,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-15 20:47:55,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635219845] [2020-10-15 20:47:55,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 20:47:55,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:55,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 20:47:55,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:47:55,388 INFO L87 Difference]: Start difference. First operand 10068 states and 46954 transitions. Second operand 6 states. [2020-10-15 20:47:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:55,506 INFO L93 Difference]: Finished difference Result 2132 states and 7715 transitions. [2020-10-15 20:47:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 20:47:55,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 20:47:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:55,514 INFO L225 Difference]: With dead ends: 2132 [2020-10-15 20:47:55,514 INFO L226 Difference]: Without dead ends: 2132 [2020-10-15 20:47:55,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:47:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2020-10-15 20:47:55,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 1721. [2020-10-15 20:47:55,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1721 states. [2020-10-15 20:47:55,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 6117 transitions. [2020-10-15 20:47:55,568 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 6117 transitions. Word has length 13 [2020-10-15 20:47:55,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:55,568 INFO L481 AbstractCegarLoop]: Abstraction has 1721 states and 6117 transitions. [2020-10-15 20:47:55,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 20:47:55,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 6117 transitions. [2020-10-15 20:47:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:47:55,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:55,570 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:55,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-15 20:47:55,785 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:55,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:55,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1110490997, now seen corresponding path program 1 times [2020-10-15 20:47:55,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:55,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028970987] [2020-10-15 20:47:55,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:47:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 20:47:55,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028970987] [2020-10-15 20:47:55,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:47:55,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:47:55,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468857943] [2020-10-15 20:47:55,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:47:55,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:47:55,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:47:55,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:55,829 INFO L87 Difference]: Start difference. First operand 1721 states and 6117 transitions. Second operand 5 states. [2020-10-15 20:47:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:47:55,896 INFO L93 Difference]: Finished difference Result 2966 states and 10590 transitions. [2020-10-15 20:47:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:47:55,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 20:47:55,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:47:55,905 INFO L225 Difference]: With dead ends: 2966 [2020-10-15 20:47:55,905 INFO L226 Difference]: Without dead ends: 2966 [2020-10-15 20:47:55,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:47:55,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2020-10-15 20:47:55,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 1991. [2020-10-15 20:47:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1991 states. [2020-10-15 20:47:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1991 states to 1991 states and 7107 transitions. [2020-10-15 20:47:55,969 INFO L78 Accepts]: Start accepts. Automaton has 1991 states and 7107 transitions. Word has length 13 [2020-10-15 20:47:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:47:55,969 INFO L481 AbstractCegarLoop]: Abstraction has 1991 states and 7107 transitions. [2020-10-15 20:47:55,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:47:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1991 states and 7107 transitions. [2020-10-15 20:47:55,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 20:47:55,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:47:55,971 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-15 20:47:55,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 20:47:55,971 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-15 20:47:55,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:47:55,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1594368647, now seen corresponding path program 1 times [2020-10-15 20:47:55,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:47:55,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767458614] [2020-10-15 20:47:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:47:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:55,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:47:55,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:47:55,989 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:47:55,990 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:47:55,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 20:47:55,990 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:47:55,991 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 20:47:55,999 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,000 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,001 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,001 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,001 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,001 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,001 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,002 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,003 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,004 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,005 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,019 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,021 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,023 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,023 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:47:56,025 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 20:47:56,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:47:56,026 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:47:56,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:47:56,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:47:56,026 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:47:56,026 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:47:56,026 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:47:56,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:47:56,028 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:47:56,028 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-15 20:47:56,028 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-15 20:47:56,028 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 221 flow [2020-10-15 20:47:56,050 INFO L129 PetriNetUnfolder]: 16/132 cut-off events. [2020-10-15 20:47:56,050 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 20:47:56,053 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2020-10-15 20:47:56,059 INFO L117 LiptonReduction]: Number of co-enabled transitions 4940 [2020-10-15 20:47:56,614 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-10-15 20:47:57,775 INFO L132 LiptonReduction]: Checked pairs total: 12187 [2020-10-15 20:47:57,775 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-15 20:47:57,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 44 transitions, 133 flow [2020-10-15 20:48:06,612 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 45100 states. [2020-10-15 20:48:06,612 INFO L276 IsEmpty]: Start isEmpty. Operand 45100 states. [2020-10-15 20:48:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 20:48:06,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:06,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:06,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:06,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:06,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1061986474, now seen corresponding path program 1 times [2020-10-15 20:48:06,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:06,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864914980] [2020-10-15 20:48:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:48:06,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864914980] [2020-10-15 20:48:06,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:06,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:06,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352683547] [2020-10-15 20:48:06,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:48:06,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:06,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:48:06,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:06,682 INFO L87 Difference]: Start difference. First operand 45100 states. Second operand 5 states. [2020-10-15 20:48:07,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:07,146 INFO L93 Difference]: Finished difference Result 50507 states and 283723 transitions. [2020-10-15 20:48:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:48:07,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-15 20:48:07,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:09,081 INFO L225 Difference]: With dead ends: 50507 [2020-10-15 20:48:09,082 INFO L226 Difference]: Without dead ends: 50507 [2020-10-15 20:48:09,082 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50507 states. [2020-10-15 20:48:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50507 to 39997. [2020-10-15 20:48:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39997 states. [2020-10-15 20:48:11,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39997 states to 39997 states and 225588 transitions. [2020-10-15 20:48:11,543 INFO L78 Accepts]: Start accepts. Automaton has 39997 states and 225588 transitions. Word has length 7 [2020-10-15 20:48:11,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:11,544 INFO L481 AbstractCegarLoop]: Abstraction has 39997 states and 225588 transitions. [2020-10-15 20:48:11,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:48:11,544 INFO L276 IsEmpty]: Start isEmpty. Operand 39997 states and 225588 transitions. [2020-10-15 20:48:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 20:48:11,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:11,544 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:11,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 20:48:11,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:11,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:11,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1633198036, now seen corresponding path program 1 times [2020-10-15 20:48:11,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:11,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223640577] [2020-10-15 20:48:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:48:11,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223640577] [2020-10-15 20:48:11,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:11,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:11,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897177619] [2020-10-15 20:48:11,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:48:11,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:11,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:48:11,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:11,607 INFO L87 Difference]: Start difference. First operand 39997 states and 225588 transitions. Second operand 4 states. [2020-10-15 20:48:14,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:14,768 INFO L93 Difference]: Finished difference Result 56104 states and 316572 transitions. [2020-10-15 20:48:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:48:14,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 20:48:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:14,995 INFO L225 Difference]: With dead ends: 56104 [2020-10-15 20:48:14,995 INFO L226 Difference]: Without dead ends: 56104 [2020-10-15 20:48:14,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56104 states. [2020-10-15 20:48:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56104 to 48029. [2020-10-15 20:48:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48029 states. [2020-10-15 20:48:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48029 states to 48029 states and 271277 transitions. [2020-10-15 20:48:17,258 INFO L78 Accepts]: Start accepts. Automaton has 48029 states and 271277 transitions. Word has length 9 [2020-10-15 20:48:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:17,259 INFO L481 AbstractCegarLoop]: Abstraction has 48029 states and 271277 transitions. [2020-10-15 20:48:17,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:48:17,259 INFO L276 IsEmpty]: Start isEmpty. Operand 48029 states and 271277 transitions. [2020-10-15 20:48:17,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:48:17,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:17,260 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:17,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 20:48:17,260 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:17,260 INFO L82 PathProgramCache]: Analyzing trace with hash 956422696, now seen corresponding path program 1 times [2020-10-15 20:48:17,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:17,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653639281] [2020-10-15 20:48:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:48:17,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653639281] [2020-10-15 20:48:17,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:17,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:17,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228287073] [2020-10-15 20:48:17,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:48:17,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:48:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:17,300 INFO L87 Difference]: Start difference. First operand 48029 states and 271277 transitions. Second operand 5 states. [2020-10-15 20:48:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:18,492 INFO L93 Difference]: Finished difference Result 60653 states and 341167 transitions. [2020-10-15 20:48:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:48:18,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 20:48:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:18,730 INFO L225 Difference]: With dead ends: 60653 [2020-10-15 20:48:18,730 INFO L226 Difference]: Without dead ends: 60653 [2020-10-15 20:48:18,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:19,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60653 states. [2020-10-15 20:48:23,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60653 to 50928. [2020-10-15 20:48:23,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50928 states. [2020-10-15 20:48:23,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50928 states to 50928 states and 287199 transitions. [2020-10-15 20:48:23,847 INFO L78 Accepts]: Start accepts. Automaton has 50928 states and 287199 transitions. Word has length 10 [2020-10-15 20:48:23,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:23,847 INFO L481 AbstractCegarLoop]: Abstraction has 50928 states and 287199 transitions. [2020-10-15 20:48:23,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:48:23,847 INFO L276 IsEmpty]: Start isEmpty. Operand 50928 states and 287199 transitions. [2020-10-15 20:48:23,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:48:23,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:23,848 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:23,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 20:48:23,848 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:23,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:23,849 INFO L82 PathProgramCache]: Analyzing trace with hash -760702, now seen corresponding path program 1 times [2020-10-15 20:48:23,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:23,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666265500] [2020-10-15 20:48:23,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:48:23,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666265500] [2020-10-15 20:48:23,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:23,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:23,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486522646] [2020-10-15 20:48:23,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:48:23,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:23,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:48:23,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:23,909 INFO L87 Difference]: Start difference. First operand 50928 states and 287199 transitions. Second operand 4 states. [2020-10-15 20:48:25,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:25,296 INFO L93 Difference]: Finished difference Result 71415 states and 402930 transitions. [2020-10-15 20:48:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:48:25,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 20:48:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:25,582 INFO L225 Difference]: With dead ends: 71415 [2020-10-15 20:48:25,583 INFO L226 Difference]: Without dead ends: 71415 [2020-10-15 20:48:25,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:26,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71415 states. [2020-10-15 20:48:31,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71415 to 62439. [2020-10-15 20:48:31,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62439 states. [2020-10-15 20:48:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62439 states to 62439 states and 352729 transitions. [2020-10-15 20:48:31,344 INFO L78 Accepts]: Start accepts. Automaton has 62439 states and 352729 transitions. Word has length 12 [2020-10-15 20:48:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:31,344 INFO L481 AbstractCegarLoop]: Abstraction has 62439 states and 352729 transitions. [2020-10-15 20:48:31,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:48:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 62439 states and 352729 transitions. [2020-10-15 20:48:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:48:31,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:31,345 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:31,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 20:48:31,345 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:31,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:31,345 INFO L82 PathProgramCache]: Analyzing trace with hash -973447414, now seen corresponding path program 1 times [2020-10-15 20:48:31,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:31,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664141398] [2020-10-15 20:48:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:31,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:48:31,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664141398] [2020-10-15 20:48:31,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445133965] [2020-10-15 20:48:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:48:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:31,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 20:48:31,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:48:31,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:48:31,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:48:31,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-15 20:48:31,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243648635] [2020-10-15 20:48:31,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 20:48:31,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:31,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 20:48:31,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:48:31,499 INFO L87 Difference]: Start difference. First operand 62439 states and 352729 transitions. Second operand 6 states. [2020-10-15 20:48:31,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:31,724 INFO L93 Difference]: Finished difference Result 8161 states and 34918 transitions. [2020-10-15 20:48:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 20:48:31,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 20:48:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:31,761 INFO L225 Difference]: With dead ends: 8161 [2020-10-15 20:48:31,761 INFO L226 Difference]: Without dead ends: 8161 [2020-10-15 20:48:31,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:48:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2020-10-15 20:48:32,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 6538. [2020-10-15 20:48:32,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6538 states. [2020-10-15 20:48:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6538 states to 6538 states and 27580 transitions. [2020-10-15 20:48:32,089 INFO L78 Accepts]: Start accepts. Automaton has 6538 states and 27580 transitions. Word has length 13 [2020-10-15 20:48:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:32,089 INFO L481 AbstractCegarLoop]: Abstraction has 6538 states and 27580 transitions. [2020-10-15 20:48:32,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 20:48:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6538 states and 27580 transitions. [2020-10-15 20:48:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:48:32,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:32,092 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:32,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:48:32,306 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1037380060, now seen corresponding path program 1 times [2020-10-15 20:48:32,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:32,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114825739] [2020-10-15 20:48:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 20:48:32,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114825739] [2020-10-15 20:48:32,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:32,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:32,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395538989] [2020-10-15 20:48:32,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:48:32,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:32,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:48:32,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:32,362 INFO L87 Difference]: Start difference. First operand 6538 states and 27580 transitions. Second operand 5 states. [2020-10-15 20:48:32,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:32,489 INFO L93 Difference]: Finished difference Result 11626 states and 49057 transitions. [2020-10-15 20:48:32,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:48:32,489 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 20:48:32,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:32,515 INFO L225 Difference]: With dead ends: 11626 [2020-10-15 20:48:32,515 INFO L226 Difference]: Without dead ends: 11626 [2020-10-15 20:48:32,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2020-10-15 20:48:33,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 7402. [2020-10-15 20:48:33,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7402 states. [2020-10-15 20:48:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7402 states to 7402 states and 31270 transitions. [2020-10-15 20:48:33,456 INFO L78 Accepts]: Start accepts. Automaton has 7402 states and 31270 transitions. Word has length 13 [2020-10-15 20:48:33,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:33,456 INFO L481 AbstractCegarLoop]: Abstraction has 7402 states and 31270 transitions. [2020-10-15 20:48:33,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:48:33,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7402 states and 31270 transitions. [2020-10-15 20:48:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 20:48:33,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:33,460 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:33,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 20:48:33,460 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:33,461 INFO L82 PathProgramCache]: Analyzing trace with hash -489841492, now seen corresponding path program 1 times [2020-10-15 20:48:33,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:33,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955641016] [2020-10-15 20:48:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 20:48:33,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955641016] [2020-10-15 20:48:33,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:33,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:33,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500876740] [2020-10-15 20:48:33,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:48:33,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:33,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:48:33,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:33,525 INFO L87 Difference]: Start difference. First operand 7402 states and 31270 transitions. Second operand 4 states. [2020-10-15 20:48:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:33,609 INFO L93 Difference]: Finished difference Result 6970 states and 29425 transitions. [2020-10-15 20:48:33,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:48:33,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 20:48:33,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:33,626 INFO L225 Difference]: With dead ends: 6970 [2020-10-15 20:48:33,626 INFO L226 Difference]: Without dead ends: 6970 [2020-10-15 20:48:33,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:48:33,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6970 states. [2020-10-15 20:48:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6970 to 6106. [2020-10-15 20:48:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6106 states. [2020-10-15 20:48:33,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6106 states to 6106 states and 25735 transitions. [2020-10-15 20:48:33,802 INFO L78 Accepts]: Start accepts. Automaton has 6106 states and 25735 transitions. Word has length 15 [2020-10-15 20:48:33,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:33,802 INFO L481 AbstractCegarLoop]: Abstraction has 6106 states and 25735 transitions. [2020-10-15 20:48:33,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:48:33,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6106 states and 25735 transitions. [2020-10-15 20:48:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 20:48:33,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:33,804 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:33,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 20:48:33,804 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:33,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:33,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1100110844, now seen corresponding path program 1 times [2020-10-15 20:48:33,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:33,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153361566] [2020-10-15 20:48:33,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:48:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 20:48:33,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153361566] [2020-10-15 20:48:33,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:48:33,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:48:33,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616658355] [2020-10-15 20:48:33,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:48:33,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:48:33,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:48:33,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:33,869 INFO L87 Difference]: Start difference. First operand 6106 states and 25735 transitions. Second operand 5 states. [2020-10-15 20:48:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:48:34,003 INFO L93 Difference]: Finished difference Result 10825 states and 45769 transitions. [2020-10-15 20:48:34,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:48:34,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 20:48:34,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:48:34,027 INFO L225 Difference]: With dead ends: 10825 [2020-10-15 20:48:34,027 INFO L226 Difference]: Without dead ends: 10825 [2020-10-15 20:48:34,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:48:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2020-10-15 20:48:34,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 6916. [2020-10-15 20:48:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6916 states. [2020-10-15 20:48:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6916 states to 6916 states and 29245 transitions. [2020-10-15 20:48:34,233 INFO L78 Accepts]: Start accepts. Automaton has 6916 states and 29245 transitions. Word has length 16 [2020-10-15 20:48:34,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:48:34,233 INFO L481 AbstractCegarLoop]: Abstraction has 6916 states and 29245 transitions. [2020-10-15 20:48:34,233 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:48:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6916 states and 29245 transitions. [2020-10-15 20:48:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 20:48:34,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:48:34,237 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:48:34,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 20:48:34,237 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:48:34,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:48:34,237 INFO L82 PathProgramCache]: Analyzing trace with hash -475239234, now seen corresponding path program 1 times [2020-10-15 20:48:34,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:48:34,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016935373] [2020-10-15 20:48:34,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:48:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:48:34,245 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:48:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:48:34,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:48:34,255 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:48:34,256 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:48:34,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-15 20:48:34,256 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:48:34,257 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-15 20:48:34,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,267 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,272 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,273 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,274 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,275 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,276 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,277 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,278 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,279 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,280 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,291 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,309 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,310 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:48:34,313 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-15 20:48:34,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:48:34,314 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:48:34,314 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:48:34,314 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:48:34,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:48:34,314 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:48:34,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:48:34,314 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:48:34,316 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:48:34,316 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-15 20:48:34,316 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-15 20:48:34,316 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 264 flow [2020-10-15 20:48:34,355 INFO L129 PetriNetUnfolder]: 19/155 cut-off events. [2020-10-15 20:48:34,355 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-15 20:48:34,359 INFO L80 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 462 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2020-10-15 20:48:34,368 INFO L117 LiptonReduction]: Number of co-enabled transitions 7020 [2020-10-15 20:48:36,105 INFO L132 LiptonReduction]: Checked pairs total: 20409 [2020-10-15 20:48:36,105 INFO L134 LiptonReduction]: Total number of compositions: 72 [2020-10-15 20:48:36,106 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 53 transitions, 166 flow [2020-10-15 20:53:55,168 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 270604 states. [2020-10-15 20:53:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 270604 states. [2020-10-15 20:53:55,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 20:53:55,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:53:55,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:53:55,169 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:53:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:53:55,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1232360898, now seen corresponding path program 1 times [2020-10-15 20:53:55,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:53:55,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672842668] [2020-10-15 20:53:55,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:53:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:53:55,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:53:55,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672842668] [2020-10-15 20:53:55,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:53:55,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:53:55,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374036072] [2020-10-15 20:53:55,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:53:55,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:53:55,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:53:55,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:53:55,208 INFO L87 Difference]: Start difference. First operand 270604 states. Second operand 5 states. [2020-10-15 20:53:57,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:53:57,692 INFO L93 Difference]: Finished difference Result 283913 states and 1878243 transitions. [2020-10-15 20:53:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:53:57,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-15 20:53:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:54:01,011 INFO L225 Difference]: With dead ends: 283913 [2020-10-15 20:54:01,011 INFO L226 Difference]: Without dead ends: 283913 [2020-10-15 20:54:01,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:54:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283913 states. [2020-10-15 20:54:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283913 to 232423. [2020-10-15 20:54:50,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232423 states. [2020-10-15 20:54:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232423 states to 232423 states and 1542529 transitions. [2020-10-15 20:54:51,502 INFO L78 Accepts]: Start accepts. Automaton has 232423 states and 1542529 transitions. Word has length 7 [2020-10-15 20:54:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:54:51,503 INFO L481 AbstractCegarLoop]: Abstraction has 232423 states and 1542529 transitions. [2020-10-15 20:54:51,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:54:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 232423 states and 1542529 transitions. [2020-10-15 20:54:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 20:54:51,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:54:51,503 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:54:51,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-15 20:54:51,503 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:54:51,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:54:51,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1112151552, now seen corresponding path program 1 times [2020-10-15 20:54:51,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:54:51,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566560695] [2020-10-15 20:54:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:54:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:54:51,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:54:51,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566560695] [2020-10-15 20:54:51,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:54:51,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:54:51,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388435113] [2020-10-15 20:54:51,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:54:51,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:54:51,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:54:51,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:54:51,557 INFO L87 Difference]: Start difference. First operand 232423 states and 1542529 transitions. Second operand 4 states. [2020-10-15 20:54:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:54:57,181 INFO L93 Difference]: Finished difference Result 334390 states and 2219305 transitions. [2020-10-15 20:54:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:54:57,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 20:54:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:55:16,737 INFO L225 Difference]: With dead ends: 334390 [2020-10-15 20:55:16,737 INFO L226 Difference]: Without dead ends: 334390 [2020-10-15 20:55:16,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:55:50,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334390 states. [2020-10-15 20:55:58,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334390 to 289718. [2020-10-15 20:55:58,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289718 states. [2020-10-15 20:56:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289718 states to 289718 states and 1923958 transitions. [2020-10-15 20:56:02,212 INFO L78 Accepts]: Start accepts. Automaton has 289718 states and 1923958 transitions. Word has length 9 [2020-10-15 20:56:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:56:02,212 INFO L481 AbstractCegarLoop]: Abstraction has 289718 states and 1923958 transitions. [2020-10-15 20:56:02,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:56:02,212 INFO L276 IsEmpty]: Start isEmpty. Operand 289718 states and 1923958 transitions. [2020-10-15 20:56:02,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 20:56:02,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:56:02,212 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:56:02,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-15 20:56:02,213 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:56:02,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:56:02,213 INFO L82 PathProgramCache]: Analyzing trace with hash 338611599, now seen corresponding path program 1 times [2020-10-15 20:56:02,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:56:02,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687802067] [2020-10-15 20:56:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:56:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:56:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:56:02,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687802067] [2020-10-15 20:56:02,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:56:02,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:56:02,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248065273] [2020-10-15 20:56:02,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:56:02,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:56:02,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:56:02,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:56:02,260 INFO L87 Difference]: Start difference. First operand 289718 states and 1923958 transitions. Second operand 5 states. [2020-10-15 20:56:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:56:20,621 INFO L93 Difference]: Finished difference Result 350111 states and 2318007 transitions. [2020-10-15 20:56:20,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:56:20,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 20:56:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:56:22,270 INFO L225 Difference]: With dead ends: 350111 [2020-10-15 20:56:22,270 INFO L226 Difference]: Without dead ends: 350111 [2020-10-15 20:56:22,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:56:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350111 states. [2020-10-15 20:56:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350111 to 301623. [2020-10-15 20:56:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301623 states. [2020-10-15 20:57:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301623 states to 301623 states and 2001033 transitions. [2020-10-15 20:57:14,510 INFO L78 Accepts]: Start accepts. Automaton has 301623 states and 2001033 transitions. Word has length 10 [2020-10-15 20:57:14,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:57:14,511 INFO L481 AbstractCegarLoop]: Abstraction has 301623 states and 2001033 transitions. [2020-10-15 20:57:14,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:57:14,511 INFO L276 IsEmpty]: Start isEmpty. Operand 301623 states and 2001033 transitions. [2020-10-15 20:57:14,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 20:57:14,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:57:14,512 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:57:14,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-15 20:57:14,512 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:57:14,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:57:14,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1011762542, now seen corresponding path program 1 times [2020-10-15 20:57:14,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:57:14,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525362971] [2020-10-15 20:57:14,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:57:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:57:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 20:57:14,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525362971] [2020-10-15 20:57:14,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:57:14,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:57:14,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592758884] [2020-10-15 20:57:14,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:57:14,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:57:14,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:57:14,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:57:14,563 INFO L87 Difference]: Start difference. First operand 301623 states and 2001033 transitions. Second operand 4 states. [2020-10-15 20:57:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:57:21,884 INFO L93 Difference]: Finished difference Result 431622 states and 2863908 transitions. [2020-10-15 20:57:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:57:21,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 20:57:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:57:42,385 INFO L225 Difference]: With dead ends: 431622 [2020-10-15 20:57:42,386 INFO L226 Difference]: Without dead ends: 431622 [2020-10-15 20:57:42,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431622 states. [2020-10-15 20:58:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431622 to 378924. [2020-10-15 20:58:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378924 states. [2020-10-15 20:58:21,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378924 states to 378924 states and 2516131 transitions. [2020-10-15 20:58:21,598 INFO L78 Accepts]: Start accepts. Automaton has 378924 states and 2516131 transitions. Word has length 12 [2020-10-15 20:58:21,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:21,599 INFO L481 AbstractCegarLoop]: Abstraction has 378924 states and 2516131 transitions. [2020-10-15 20:58:21,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:58:21,599 INFO L276 IsEmpty]: Start isEmpty. Operand 378924 states and 2516131 transitions. [2020-10-15 20:58:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:58:21,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:21,600 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:21,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-15 20:58:21,600 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:21,600 INFO L82 PathProgramCache]: Analyzing trace with hash -742979976, now seen corresponding path program 1 times [2020-10-15 20:58:21,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:21,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525325343] [2020-10-15 20:58:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:58:21,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525325343] [2020-10-15 20:58:21,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403039666] [2020-10-15 20:58:21,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:58:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:21,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 20:58:21,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 20:58:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 20:58:21,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 20:58:21,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-15 20:58:21,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475759667] [2020-10-15 20:58:21,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 20:58:21,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:21,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 20:58:21,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:58:21,738 INFO L87 Difference]: Start difference. First operand 378924 states and 2516131 transitions. Second operand 6 states. [2020-10-15 20:58:37,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:37,402 INFO L93 Difference]: Finished difference Result 29742 states and 146940 transitions. [2020-10-15 20:58:37,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 20:58:37,402 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-15 20:58:37,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:37,490 INFO L225 Difference]: With dead ends: 29742 [2020-10-15 20:58:37,490 INFO L226 Difference]: Without dead ends: 29742 [2020-10-15 20:58:37,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 20:58:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29742 states. [2020-10-15 20:58:38,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29742 to 23691. [2020-10-15 20:58:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23691 states. [2020-10-15 20:58:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 115698 transitions. [2020-10-15 20:58:38,762 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 115698 transitions. Word has length 13 [2020-10-15 20:58:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:38,762 INFO L481 AbstractCegarLoop]: Abstraction has 23691 states and 115698 transitions. [2020-10-15 20:58:38,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 20:58:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 115698 transitions. [2020-10-15 20:58:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 20:58:38,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:38,763 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:38,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 20:58:38,969 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:38,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:38,969 INFO L82 PathProgramCache]: Analyzing trace with hash 508059146, now seen corresponding path program 1 times [2020-10-15 20:58:38,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:38,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805578665] [2020-10-15 20:58:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 20:58:39,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805578665] [2020-10-15 20:58:39,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:39,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:39,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970574341] [2020-10-15 20:58:39,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:58:39,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:39,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:58:39,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:39,012 INFO L87 Difference]: Start difference. First operand 23691 states and 115698 transitions. Second operand 5 states. [2020-10-15 20:58:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:39,514 INFO L93 Difference]: Finished difference Result 42981 states and 209508 transitions. [2020-10-15 20:58:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:58:39,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 20:58:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:39,713 INFO L225 Difference]: With dead ends: 42981 [2020-10-15 20:58:39,713 INFO L226 Difference]: Without dead ends: 42981 [2020-10-15 20:58:39,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:40,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42981 states. [2020-10-15 20:58:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42981 to 26337. [2020-10-15 20:58:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26337 states. [2020-10-15 20:58:41,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26337 states to 26337 states and 128676 transitions. [2020-10-15 20:58:41,859 INFO L78 Accepts]: Start accepts. Automaton has 26337 states and 128676 transitions. Word has length 13 [2020-10-15 20:58:41,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:41,859 INFO L481 AbstractCegarLoop]: Abstraction has 26337 states and 128676 transitions. [2020-10-15 20:58:41,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:58:41,859 INFO L276 IsEmpty]: Start isEmpty. Operand 26337 states and 128676 transitions. [2020-10-15 20:58:41,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 20:58:41,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:41,861 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:41,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-15 20:58:41,861 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:41,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:41,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1381432313, now seen corresponding path program 1 times [2020-10-15 20:58:41,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:41,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341266061] [2020-10-15 20:58:41,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 20:58:41,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341266061] [2020-10-15 20:58:41,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:41,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:41,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50903134] [2020-10-15 20:58:41,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:58:41,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:41,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:58:41,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:41,918 INFO L87 Difference]: Start difference. First operand 26337 states and 128676 transitions. Second operand 4 states. [2020-10-15 20:58:42,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:42,103 INFO L93 Difference]: Finished difference Result 25014 states and 122187 transitions. [2020-10-15 20:58:42,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:58:42,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-15 20:58:42,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:42,174 INFO L225 Difference]: With dead ends: 25014 [2020-10-15 20:58:42,175 INFO L226 Difference]: Without dead ends: 25014 [2020-10-15 20:58:42,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:42,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25014 states. [2020-10-15 20:58:43,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25014 to 22368. [2020-10-15 20:58:43,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22368 states. [2020-10-15 20:58:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22368 states to 22368 states and 109209 transitions. [2020-10-15 20:58:43,267 INFO L78 Accepts]: Start accepts. Automaton has 22368 states and 109209 transitions. Word has length 15 [2020-10-15 20:58:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:43,267 INFO L481 AbstractCegarLoop]: Abstraction has 22368 states and 109209 transitions. [2020-10-15 20:58:43,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:58:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 22368 states and 109209 transitions. [2020-10-15 20:58:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-15 20:58:43,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:43,269 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:43,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-15 20:58:43,270 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:43,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1113234386, now seen corresponding path program 1 times [2020-10-15 20:58:43,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:43,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95271649] [2020-10-15 20:58:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 20:58:43,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95271649] [2020-10-15 20:58:43,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:43,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:43,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076635162] [2020-10-15 20:58:43,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:58:43,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:43,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:58:43,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:43,314 INFO L87 Difference]: Start difference. First operand 22368 states and 109209 transitions. Second operand 5 states. [2020-10-15 20:58:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:43,630 INFO L93 Difference]: Finished difference Result 40695 states and 198579 transitions. [2020-10-15 20:58:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:58:43,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-15 20:58:43,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:43,749 INFO L225 Difference]: With dead ends: 40695 [2020-10-15 20:58:43,749 INFO L226 Difference]: Without dead ends: 40695 [2020-10-15 20:58:43,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40695 states. [2020-10-15 20:58:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40695 to 24960. [2020-10-15 20:58:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24960 states. [2020-10-15 20:58:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24960 states to 24960 states and 122007 transitions. [2020-10-15 20:58:45,614 INFO L78 Accepts]: Start accepts. Automaton has 24960 states and 122007 transitions. Word has length 16 [2020-10-15 20:58:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:45,614 INFO L481 AbstractCegarLoop]: Abstraction has 24960 states and 122007 transitions. [2020-10-15 20:58:45,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:58:45,614 INFO L276 IsEmpty]: Start isEmpty. Operand 24960 states and 122007 transitions. [2020-10-15 20:58:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-15 20:58:45,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:45,618 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:45,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-15 20:58:45,618 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:45,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:45,619 INFO L82 PathProgramCache]: Analyzing trace with hash 371361058, now seen corresponding path program 1 times [2020-10-15 20:58:45,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:45,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079984936] [2020-10-15 20:58:45,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 20:58:45,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079984936] [2020-10-15 20:58:45,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:45,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:45,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413173613] [2020-10-15 20:58:45,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:58:45,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:45,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:58:45,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:45,672 INFO L87 Difference]: Start difference. First operand 24960 states and 122007 transitions. Second operand 4 states. [2020-10-15 20:58:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:45,858 INFO L93 Difference]: Finished difference Result 23664 states and 115608 transitions. [2020-10-15 20:58:45,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:58:45,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-15 20:58:45,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:45,923 INFO L225 Difference]: With dead ends: 23664 [2020-10-15 20:58:45,923 INFO L226 Difference]: Without dead ends: 23664 [2020-10-15 20:58:45,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23664 states. [2020-10-15 20:58:46,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23664 to 21072. [2020-10-15 20:58:46,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21072 states. [2020-10-15 20:58:46,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21072 states to 21072 states and 102810 transitions. [2020-10-15 20:58:46,928 INFO L78 Accepts]: Start accepts. Automaton has 21072 states and 102810 transitions. Word has length 18 [2020-10-15 20:58:46,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:46,928 INFO L481 AbstractCegarLoop]: Abstraction has 21072 states and 102810 transitions. [2020-10-15 20:58:46,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:58:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 21072 states and 102810 transitions. [2020-10-15 20:58:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 20:58:46,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:46,931 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:46,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-15 20:58:46,931 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:46,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:46,932 INFO L82 PathProgramCache]: Analyzing trace with hash 745940009, now seen corresponding path program 1 times [2020-10-15 20:58:46,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:46,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976706840] [2020-10-15 20:58:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 20:58:46,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976706840] [2020-10-15 20:58:46,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:46,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:46,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918516728] [2020-10-15 20:58:46,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 20:58:46,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 20:58:46,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:46,979 INFO L87 Difference]: Start difference. First operand 21072 states and 102810 transitions. Second operand 5 states. [2020-10-15 20:58:47,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:47,257 INFO L93 Difference]: Finished difference Result 38184 states and 186699 transitions. [2020-10-15 20:58:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 20:58:47,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-15 20:58:47,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:47,368 INFO L225 Difference]: With dead ends: 38184 [2020-10-15 20:58:47,368 INFO L226 Difference]: Without dead ends: 38184 [2020-10-15 20:58:47,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 20:58:48,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38184 states. [2020-10-15 20:58:48,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38184 to 23502. [2020-10-15 20:58:48,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23502 states. [2020-10-15 20:58:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23502 states to 23502 states and 114960 transitions. [2020-10-15 20:58:48,656 INFO L78 Accepts]: Start accepts. Automaton has 23502 states and 114960 transitions. Word has length 19 [2020-10-15 20:58:48,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:48,656 INFO L481 AbstractCegarLoop]: Abstraction has 23502 states and 114960 transitions. [2020-10-15 20:58:48,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 20:58:48,656 INFO L276 IsEmpty]: Start isEmpty. Operand 23502 states and 114960 transitions. [2020-10-15 20:58:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 20:58:48,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:48,662 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:48,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-15 20:58:48,663 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:48,663 INFO L82 PathProgramCache]: Analyzing trace with hash -411186623, now seen corresponding path program 1 times [2020-10-15 20:58:48,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:48,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354055667] [2020-10-15 20:58:48,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 20:58:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 20:58:48,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354055667] [2020-10-15 20:58:48,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 20:58:48,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 20:58:48,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258957146] [2020-10-15 20:58:48,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 20:58:48,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 20:58:48,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 20:58:48,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:48,706 INFO L87 Difference]: Start difference. First operand 23502 states and 114960 transitions. Second operand 4 states. [2020-10-15 20:58:48,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 20:58:48,884 INFO L93 Difference]: Finished difference Result 22287 states and 108885 transitions. [2020-10-15 20:58:48,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 20:58:48,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-15 20:58:48,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 20:58:49,325 INFO L225 Difference]: With dead ends: 22287 [2020-10-15 20:58:49,326 INFO L226 Difference]: Without dead ends: 22287 [2020-10-15 20:58:49,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 20:58:49,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22287 states. [2020-10-15 20:58:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22287 to 19857. [2020-10-15 20:58:50,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19857 states. [2020-10-15 20:58:50,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19857 states to 19857 states and 96735 transitions. [2020-10-15 20:58:50,254 INFO L78 Accepts]: Start accepts. Automaton has 19857 states and 96735 transitions. Word has length 21 [2020-10-15 20:58:50,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 20:58:50,255 INFO L481 AbstractCegarLoop]: Abstraction has 19857 states and 96735 transitions. [2020-10-15 20:58:50,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 20:58:50,255 INFO L276 IsEmpty]: Start isEmpty. Operand 19857 states and 96735 transitions. [2020-10-15 20:58:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-15 20:58:50,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 20:58:50,262 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 20:58:50,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-15 20:58:50,262 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 20:58:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 20:58:50,263 INFO L82 PathProgramCache]: Analyzing trace with hash -603092677, now seen corresponding path program 1 times [2020-10-15 20:58:50,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 20:58:50,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001975153] [2020-10-15 20:58:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 20:58:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:58:50,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:58:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 20:58:50,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 20:58:50,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 20:58:50,280 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 20:58:50,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-15 20:58:50,281 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 20:58:50,282 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-15 20:58:50,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,294 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,295 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,296 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,300 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,301 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,302 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,303 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,311 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,311 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,312 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,312 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,313 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,314 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,316 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,317 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,319 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,319 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,320 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,320 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,320 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,321 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,321 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,322 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,322 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 20:58:50,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-15 20:58:50,327 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 20:58:50,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 20:58:50,328 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 20:58:50,328 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 20:58:50,328 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 20:58:50,328 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 20:58:50,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 20:58:50,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 20:58:50,329 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 20:58:50,330 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 116 transitions, 309 flow [2020-10-15 20:58:50,330 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 116 transitions, 309 flow [2020-10-15 20:58:50,330 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 116 places, 116 transitions, 309 flow [2020-10-15 20:58:50,350 INFO L129 PetriNetUnfolder]: 22/178 cut-off events. [2020-10-15 20:58:50,351 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-15 20:58:50,353 INFO L80 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 178 events. 22/178 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 560 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 188. Up to 16 conditions per place. [2020-10-15 20:58:50,363 INFO L117 LiptonReduction]: Number of co-enabled transitions 9464 [2020-10-15 20:58:52,500 INFO L132 LiptonReduction]: Checked pairs total: 23761 [2020-10-15 20:58:52,501 INFO L134 LiptonReduction]: Total number of compositions: 81 [2020-10-15 20:58:52,501 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 58 transitions, 193 flow Received shutdown request... [2020-10-15 20:59:17,594 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-15 20:59:17,596 WARN L235 ceAbstractionStarter]: Timeout [2020-10-15 20:59:17,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 08:59:17 BasicIcfg [2020-10-15 20:59:17,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 20:59:17,598 INFO L168 Benchmark]: Toolchain (without parser) took 693103.92 ms. Allocated memory was 252.7 MB in the beginning and 8.5 GB in the end (delta: 8.3 GB). Free memory was 208.5 MB in the beginning and 4.4 GB in the end (delta: -4.2 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. [2020-10-15 20:59:17,598 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:59:17,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.19 ms. Allocated memory was 252.7 MB in the beginning and 319.3 MB in the end (delta: 66.6 MB). Free memory was 208.5 MB in the beginning and 274.9 MB in the end (delta: -66.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. [2020-10-15 20:59:17,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.54 ms. Allocated memory is still 319.3 MB. Free memory was 274.9 MB in the beginning and 272.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 20:59:17,600 INFO L168 Benchmark]: Boogie Preprocessor took 26.44 ms. Allocated memory is still 319.3 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 20:59:17,600 INFO L168 Benchmark]: RCFGBuilder took 416.03 ms. Allocated memory is still 319.3 MB. Free memory was 272.4 MB in the beginning and 250.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-15 20:59:17,602 INFO L168 Benchmark]: TraceAbstraction took 691957.41 ms. Allocated memory was 319.3 MB in the beginning and 8.5 GB in the end (delta: 8.2 GB). Free memory was 250.6 MB in the beginning and 4.4 GB in the end (delta: -4.2 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. [2020-10-15 20:59:17,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 652.19 ms. Allocated memory was 252.7 MB in the beginning and 319.3 MB in the end (delta: 66.6 MB). Free memory was 208.5 MB in the beginning and 274.9 MB in the end (delta: -66.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.54 ms. Allocated memory is still 319.3 MB. Free memory was 274.9 MB in the beginning and 272.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 26.44 ms. Allocated memory is still 319.3 MB. Free memory is still 272.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 416.03 ms. Allocated memory is still 319.3 MB. Free memory was 272.4 MB in the beginning and 250.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 691957.41 ms. Allocated memory was 319.3 MB in the beginning and 8.5 GB in the end (delta: 8.2 GB). Free memory was 250.6 MB in the beginning and 4.4 GB in the end (delta: -4.2 GB). Peak memory consumption was 5.7 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 159 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 32 PlacesBefore, 12 PlacesAfterwards, 32 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 30 TotalNumberOfCompositions, 259 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 586 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 46 PlacesBefore, 22 PlacesAfterwards, 46 TransitionsBefore, 21 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 32 TotalNumberOfCompositions, 1787 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1103 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 164 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 60 PlacesBefore, 30 PlacesAfterwards, 60 TransitionsBefore, 27 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 43 TotalNumberOfCompositions, 4048 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1882 VarBasedMoverChecksPositive, 86 VarBasedMoverChecksNegative, 33 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 275 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 74 PlacesBefore, 38 PlacesAfterwards, 74 TransitionsBefore, 35 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 52 TotalNumberOfCompositions, 7163 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2879 VarBasedMoverChecksPositive, 190 VarBasedMoverChecksNegative, 117 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 360 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 88 PlacesBefore, 46 PlacesAfterwards, 88 TransitionsBefore, 44 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 12187 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4725 VarBasedMoverChecksPositive, 256 VarBasedMoverChecksNegative, 159 SemBasedMoverChecksPositive, 97 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 704 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 102 PlacesBefore, 54 PlacesAfterwards, 102 TransitionsBefore, 53 TransitionsAfterwards, 7020 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 20409 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5117 VarBasedMoverChecksPositive, 239 VarBasedMoverChecksNegative, 133 SemBasedMoverChecksPositive, 106 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 549 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 116 PlacesBefore, 62 PlacesAfterwards, 116 TransitionsBefore, 58 TransitionsAfterwards, 9464 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 81 TotalNumberOfCompositions, 23761 MoverChecksTotal - TimeoutResultAtElement [Line: 690]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 690). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 62 places, 58 transitions, 193 flow. Already constructed 95501 states. Currently 29997 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 7 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 691.6s, OverallIterations: 38, TraceHistogramMax: 7, AutomataDifference: 108.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 363.1s, HoareTripleCheckerStatistics: 1902 SDtfs, 1594 SDslu, 2474 SDs, 0 SdLazy, 2172 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378924occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 216.5s AutomataMinimizationTime, 32 MinimizatonAttempts, 315382 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 488 NumberOfCodeBlocks, 488 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 372 ConstructedInterpolants, 0 QuantifiedInterpolants, 21730 SizeOfPredicates, 3 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 35 InterpolantComputations, 29 PerfectInterpolantSequences, 173/185 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown