/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_01-simple_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:14:00,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:14:00,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:14:00,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:14:00,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:14:00,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:14:00,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:14:00,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:14:00,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:14:00,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:14:00,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:14:00,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:14:00,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:14:00,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:14:00,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:14:00,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:14:00,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:14:00,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:14:00,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:14:00,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:14:00,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:14:00,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:14:00,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:14:00,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:14:00,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:14:00,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:14:00,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:14:00,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:14:00,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:14:00,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:14:00,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:14:00,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:14:00,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:14:00,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:14:00,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:14:00,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:14:00,479 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:14:00,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:14:00,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:14:00,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:14:00,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:14:00,503 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:14:00,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:14:00,504 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:14:00,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:14:00,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:14:00,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:14:00,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:14:00,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:14:00,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:14:00,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:14:00,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:14:00,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:14:00,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:14:00,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:14:00,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:14:00,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:14:00,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:14:00,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:14:00,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:14:00,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:14:00,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:14:00,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:14:00,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:14:00,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:14:00,871 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:14:00,872 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:14:00,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_01-simple_racing.i [2020-10-21 22:14:00,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57767078/2b3bdbc21ff5485a8100c5ac123900b0/FLAG392400080 [2020-10-21 22:14:01,495 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:14:01,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_01-simple_racing.i [2020-10-21 22:14:01,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57767078/2b3bdbc21ff5485a8100c5ac123900b0/FLAG392400080 [2020-10-21 22:14:01,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b57767078/2b3bdbc21ff5485a8100c5ac123900b0 [2020-10-21 22:14:01,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:14:01,796 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:14:01,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:14:01,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:14:01,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:14:01,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:14:01" (1/1) ... [2020-10-21 22:14:01,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637c555e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:01, skipping insertion in model container [2020-10-21 22:14:01,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:14:01" (1/1) ... [2020-10-21 22:14:01,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:14:01,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:14:02,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:14:02,435 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:14:02,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:14:02,611 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:14:02,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02 WrapperNode [2020-10-21 22:14:02,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:14:02,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:14:02,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:14:02,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:14:02,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:14:02,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:14:02,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:14:02,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:14:02,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (1/1) ... [2020-10-21 22:14:02,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:14:02,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:14:02,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:14:02,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:14:02,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (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 [2020-10-21 22:14:02,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:14:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:14:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:14:02,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:14:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:14:02,789 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:14:02,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:14:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:14:02,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:14:02,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:14:02,793 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:14:03,247 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:14:03,247 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 22:14:03,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:14:03 BoogieIcfgContainer [2020-10-21 22:14:03,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:14:03,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:14:03,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:14:03,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:14:03,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:14:01" (1/3) ... [2020-10-21 22:14:03,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5ca08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:14:03, skipping insertion in model container [2020-10-21 22:14:03,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:14:02" (2/3) ... [2020-10-21 22:14:03,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5ca08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:14:03, skipping insertion in model container [2020-10-21 22:14:03,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:14:03" (3/3) ... [2020-10-21 22:14:03,260 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_01-simple_racing.i [2020-10-21 22:14:03,274 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:14:03,274 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:14:03,283 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:14:03,284 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:14:03,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,314 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,314 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,315 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,315 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,315 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,318 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,318 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,318 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,323 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,323 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,323 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,323 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,324 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,324 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,324 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:03,332 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:14:03,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:14:03,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:14:03,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:14:03,364 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:14:03,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:14:03,364 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:14:03,364 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:14:03,364 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:14:03,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:14:03,377 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:14:03,379 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 104 transitions, 216 flow [2020-10-21 22:14:03,382 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 104 transitions, 216 flow [2020-10-21 22:14:03,384 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 94 places, 104 transitions, 216 flow [2020-10-21 22:14:03,445 INFO L129 PetriNetUnfolder]: 19/139 cut-off events. [2020-10-21 22:14:03,445 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:14:03,452 INFO L80 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 139 events. 19/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 347 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 67. Up to 4 conditions per place. [2020-10-21 22:14:03,457 INFO L116 LiptonReduction]: Number of co-enabled transitions 2240 [2020-10-21 22:14:05,542 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-21 22:14:06,119 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 122 [2020-10-21 22:14:06,337 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-21 22:14:07,035 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133 [2020-10-21 22:14:07,317 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 22:14:07,326 INFO L131 LiptonReduction]: Checked pairs total: 3625 [2020-10-21 22:14:07,326 INFO L133 LiptonReduction]: Total number of compositions: 95 [2020-10-21 22:14:07,334 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 33 transitions, 74 flow [2020-10-21 22:14:07,350 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 132 states. [2020-10-21 22:14:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-10-21 22:14:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:14:07,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:07,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:14:07,361 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:07,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:07,367 INFO L82 PathProgramCache]: Analyzing trace with hash 12853314, now seen corresponding path program 1 times [2020-10-21 22:14:07,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:07,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363543071] [2020-10-21 22:14:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:07,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363543071] [2020-10-21 22:14:07,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:14:07,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:14:07,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004306341] [2020-10-21 22:14:07,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:14:07,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:14:07,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:14:07,595 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-10-21 22:14:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:07,637 INFO L93 Difference]: Finished difference Result 127 states and 225 transitions. [2020-10-21 22:14:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:14:07,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:14:07,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:07,650 INFO L225 Difference]: With dead ends: 127 [2020-10-21 22:14:07,651 INFO L226 Difference]: Without dead ends: 73 [2020-10-21 22:14:07,652 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 [2020-10-21 22:14:07,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-21 22:14:07,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-21 22:14:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:14:07,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2020-10-21 22:14:07,700 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2020-10-21 22:14:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:07,700 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2020-10-21 22:14:07,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:14:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2020-10-21 22:14:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:14:07,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:07,702 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:14:07,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:14:07,702 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:07,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:07,703 INFO L82 PathProgramCache]: Analyzing trace with hash -543111319, now seen corresponding path program 1 times [2020-10-21 22:14:07,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:07,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763055375] [2020-10-21 22:14:07,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:07,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:07,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:07,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:14:07,839 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:14:07,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:14:07,842 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:14:07,843 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:14:07,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,851 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,851 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,855 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,855 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,859 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,860 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:07,866 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:14:07,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:14:07,867 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:14:07,867 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:14:07,867 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:14:07,868 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:14:07,868 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:14:07,868 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:14:07,868 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:14:07,868 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:14:07,870 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:14:07,871 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 134 transitions, 286 flow [2020-10-21 22:14:07,871 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 134 transitions, 286 flow [2020-10-21 22:14:07,871 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 119 places, 134 transitions, 286 flow [2020-10-21 22:14:07,918 INFO L129 PetriNetUnfolder]: 34/227 cut-off events. [2020-10-21 22:14:07,919 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:14:07,922 INFO L80 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 227 events. 34/227 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 709 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 141. Up to 8 conditions per place. [2020-10-21 22:14:07,931 INFO L116 LiptonReduction]: Number of co-enabled transitions 6664 [2020-10-21 22:14:10,442 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-21 22:14:10,666 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-21 22:14:11,383 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-10-21 22:14:11,661 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 22:14:11,687 INFO L131 LiptonReduction]: Checked pairs total: 14741 [2020-10-21 22:14:11,687 INFO L133 LiptonReduction]: Total number of compositions: 116 [2020-10-21 22:14:11,688 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 56 transitions, 130 flow [2020-10-21 22:14:11,806 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2113 states. [2020-10-21 22:14:11,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states. [2020-10-21 22:14:11,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:14:11,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:11,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:14:11,808 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:11,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:11,808 INFO L82 PathProgramCache]: Analyzing trace with hash 21429594, now seen corresponding path program 1 times [2020-10-21 22:14:11,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:11,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689177149] [2020-10-21 22:14:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:11,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689177149] [2020-10-21 22:14:11,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:14:11,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:14:11,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287401593] [2020-10-21 22:14:11,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:14:11,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:11,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:14:11,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:14:11,863 INFO L87 Difference]: Start difference. First operand 2113 states. Second operand 3 states. [2020-10-21 22:14:11,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:11,924 INFO L93 Difference]: Finished difference Result 2108 states and 5618 transitions. [2020-10-21 22:14:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:14:11,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:14:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:11,945 INFO L225 Difference]: With dead ends: 2108 [2020-10-21 22:14:11,945 INFO L226 Difference]: Without dead ends: 1239 [2020-10-21 22:14:11,945 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 [2020-10-21 22:14:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-21 22:14:12,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-21 22:14:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-21 22:14:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-21 22:14:12,066 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-21 22:14:12,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:12,067 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-21 22:14:12,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:14:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-21 22:14:12,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:14:12,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:12,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:14:12,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:14:12,074 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:12,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1548648343, now seen corresponding path program 1 times [2020-10-21 22:14:12,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:12,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908772229] [2020-10-21 22:14:12,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:12,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908772229] [2020-10-21 22:14:12,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32500082] [2020-10-21 22:14:12,166 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 [2020-10-21 22:14:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:12,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:14:12,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:14:12,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:14:12,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:14:12,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-21 22:14:12,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299507471] [2020-10-21 22:14:12,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:14:12,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:12,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:14:12,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:12,284 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 3 states. [2020-10-21 22:14:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:12,314 INFO L93 Difference]: Finished difference Result 1209 states and 3199 transitions. [2020-10-21 22:14:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:14:12,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:14:12,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:12,323 INFO L225 Difference]: With dead ends: 1209 [2020-10-21 22:14:12,323 INFO L226 Difference]: Without dead ends: 1209 [2020-10-21 22:14:12,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-21 22:14:12,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-21 22:14:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-21 22:14:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-21 22:14:12,366 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 8 [2020-10-21 22:14:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:12,367 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-21 22:14:12,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:14:12,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-21 22:14:12,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:14:12,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:12,369 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:14:12,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:14:12,584 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:12,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:12,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1242145676, now seen corresponding path program 1 times [2020-10-21 22:14:12,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:12,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202077041] [2020-10-21 22:14:12,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:12,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:12,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:12,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:14:12,635 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:14:12,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:14:12,636 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:14:12,637 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:14:12,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,653 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,654 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,654 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,655 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,655 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,657 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,659 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,661 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,663 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,664 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,664 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,666 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,669 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:12,672 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:14:12,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:14:12,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:14:12,673 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:14:12,673 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:14:12,673 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:14:12,673 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:14:12,674 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:14:12,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:14:12,674 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:14:12,676 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:14:12,676 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 164 transitions, 358 flow [2020-10-21 22:14:12,676 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 164 transitions, 358 flow [2020-10-21 22:14:12,676 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 144 places, 164 transitions, 358 flow [2020-10-21 22:14:12,738 INFO L129 PetriNetUnfolder]: 54/346 cut-off events. [2020-10-21 22:14:12,738 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:14:12,745 INFO L80 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 346 events. 54/346 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1242 event pairs, 1 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 235. Up to 16 conditions per place. [2020-10-21 22:14:12,771 INFO L116 LiptonReduction]: Number of co-enabled transitions 12600 [2020-10-21 22:14:15,834 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-21 22:14:16,040 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-21 22:14:16,954 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2020-10-21 22:14:17,289 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 22:14:17,299 INFO L131 LiptonReduction]: Checked pairs total: 28056 [2020-10-21 22:14:17,299 INFO L133 LiptonReduction]: Total number of compositions: 130 [2020-10-21 22:14:17,300 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 75 transitions, 180 flow [2020-10-21 22:14:20,435 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26221 states. [2020-10-21 22:14:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 26221 states. [2020-10-21 22:14:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:14:20,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:20,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:14:20,436 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:20,437 INFO L82 PathProgramCache]: Analyzing trace with hash 31425306, now seen corresponding path program 1 times [2020-10-21 22:14:20,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:20,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215291579] [2020-10-21 22:14:20,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:20,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215291579] [2020-10-21 22:14:20,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:14:20,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:14:20,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44464782] [2020-10-21 22:14:20,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:14:20,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:20,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:14:20,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:14:20,483 INFO L87 Difference]: Start difference. First operand 26221 states. Second operand 3 states. [2020-10-21 22:14:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:20,797 INFO L93 Difference]: Finished difference Result 26216 states and 93058 transitions. [2020-10-21 22:14:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:14:20,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:14:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:20,949 INFO L225 Difference]: With dead ends: 26216 [2020-10-21 22:14:20,949 INFO L226 Difference]: Without dead ends: 14919 [2020-10-21 22:14:20,949 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 [2020-10-21 22:14:22,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-21 22:14:22,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-21 22:14:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-21 22:14:22,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-21 22:14:22,911 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-21 22:14:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:22,911 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-21 22:14:22,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:14:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-21 22:14:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:14:22,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:22,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:14:22,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:14:22,913 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:22,914 INFO L82 PathProgramCache]: Analyzing trace with hash -573721531, now seen corresponding path program 1 times [2020-10-21 22:14:22,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:22,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565763173] [2020-10-21 22:14:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:23,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565763173] [2020-10-21 22:14:23,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862698012] [2020-10-21 22:14:23,002 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 [2020-10-21 22:14:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:23,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:14:23,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:14:23,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:14:23,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:14:23,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-21 22:14:23,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669373272] [2020-10-21 22:14:23,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:14:23,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:23,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:14:23,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:23,074 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 3 states. [2020-10-21 22:14:23,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:23,233 INFO L93 Difference]: Finished difference Result 14764 states and 52547 transitions. [2020-10-21 22:14:23,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:14:23,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:14:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:23,579 INFO L225 Difference]: With dead ends: 14764 [2020-10-21 22:14:23,579 INFO L226 Difference]: Without dead ends: 14764 [2020-10-21 22:14:23,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:23,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-21 22:14:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-21 22:14:24,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-21 22:14:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-21 22:14:24,360 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 8 [2020-10-21 22:14:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:24,360 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-21 22:14:24,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:14:24,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-21 22:14:24,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:14:24,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:24,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:14:24,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:14:24,585 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:24,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1725663395, now seen corresponding path program 1 times [2020-10-21 22:14:24,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:24,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635054502] [2020-10-21 22:14:24,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:24,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635054502] [2020-10-21 22:14:24,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280019853] [2020-10-21 22:14:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-21 22:14:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:14:24,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:14:24,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:14:24,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:14:24,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:14:24,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 22:14:24,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829092086] [2020-10-21 22:14:24,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:14:24,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:14:24,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:14:24,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:24,715 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 5 states. [2020-10-21 22:14:25,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:14:25,105 INFO L93 Difference]: Finished difference Result 14733 states and 52488 transitions. [2020-10-21 22:14:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:14:25,106 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-21 22:14:25,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:14:25,161 INFO L225 Difference]: With dead ends: 14733 [2020-10-21 22:14:25,161 INFO L226 Difference]: Without dead ends: 14733 [2020-10-21 22:14:25,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:14:25,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14733 states. [2020-10-21 22:14:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14733 to 14733. [2020-10-21 22:14:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14733 states. [2020-10-21 22:14:25,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14733 states to 14733 states and 52488 transitions. [2020-10-21 22:14:25,883 INFO L78 Accepts]: Start accepts. Automaton has 14733 states and 52488 transitions. Word has length 13 [2020-10-21 22:14:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:14:25,884 INFO L481 AbstractCegarLoop]: Abstraction has 14733 states and 52488 transitions. [2020-10-21 22:14:25,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:14:25,884 INFO L276 IsEmpty]: Start isEmpty. Operand 14733 states and 52488 transitions. [2020-10-21 22:14:25,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:14:25,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:14:25,886 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 22:14:26,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:14:26,101 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:14:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:14:26,102 INFO L82 PathProgramCache]: Analyzing trace with hash -719814360, now seen corresponding path program 1 times [2020-10-21 22:14:26,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:14:26,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368098903] [2020-10-21 22:14:26,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:14:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:26,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:14:26,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:14:26,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:14:26,176 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:14:26,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 22:14:26,178 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:14:26,178 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:14:26,191 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,192 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,192 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,192 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,192 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,193 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,193 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,193 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,193 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,194 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,194 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,194 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,194 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,194 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,195 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,195 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,195 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,195 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,195 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,196 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,196 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,196 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,196 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,196 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,197 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,197 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,197 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,197 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,197 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,200 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,204 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,215 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,223 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,224 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,224 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,227 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,228 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,228 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,229 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,231 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,231 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:14:26,237 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:14:26,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:14:26,238 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:14:26,239 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:14:26,239 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:14:26,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:14:26,239 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:14:26,239 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:14:26,239 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:14:26,239 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:14:26,242 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:14:26,242 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 194 transitions, 432 flow [2020-10-21 22:14:26,242 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 194 transitions, 432 flow [2020-10-21 22:14:26,243 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 169 places, 194 transitions, 432 flow [2020-10-21 22:14:26,369 INFO L129 PetriNetUnfolder]: 86/529 cut-off events. [2020-10-21 22:14:26,369 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 22:14:26,380 INFO L80 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 529 events. 86/529 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2127 event pairs, 6 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 366. Up to 32 conditions per place. [2020-10-21 22:14:26,415 INFO L116 LiptonReduction]: Number of co-enabled transitions 20272 [2020-10-21 22:14:27,117 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-21 22:14:30,846 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-21 22:14:31,058 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-21 22:14:31,871 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 131 [2020-10-21 22:14:32,150 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-21 22:14:32,446 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 22:14:32,743 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-21 22:14:32,763 INFO L131 LiptonReduction]: Checked pairs total: 53462 [2020-10-21 22:14:32,763 INFO L133 LiptonReduction]: Total number of compositions: 153 [2020-10-21 22:14:32,764 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 94 transitions, 232 flow [2020-10-21 22:18:06,167 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 325657 states. [2020-10-21 22:18:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 325657 states. [2020-10-21 22:18:06,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:18:06,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:18:06,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:18:06,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:18:06,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:18:06,169 INFO L82 PathProgramCache]: Analyzing trace with hash 43026342, now seen corresponding path program 1 times [2020-10-21 22:18:06,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:18:06,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894883363] [2020-10-21 22:18:06,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:18:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:18:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:18:06,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894883363] [2020-10-21 22:18:06,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:18:06,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:18:06,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009387805] [2020-10-21 22:18:06,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:18:06,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:18:06,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:18:06,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:18:06,195 INFO L87 Difference]: Start difference. First operand 325657 states. Second operand 3 states. Received shutdown request... [2020-10-21 22:18:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:18:18,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:18:18,580 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:18:18,584 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:18:18,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:18:18 BasicIcfg [2020-10-21 22:18:18,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:18:18,586 INFO L168 Benchmark]: Toolchain (without parser) took 256795.28 ms. Allocated memory was 140.0 MB in the beginning and 4.0 GB in the end (delta: 3.8 GB). Free memory was 102.8 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.7 GB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,586 INFO L168 Benchmark]: CDTParser took 3.23 ms. Allocated memory is still 140.0 MB. Free memory was 122.1 MB in the beginning and 121.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 815.92 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 158.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,588 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 202.9 MB. Free memory was 158.7 MB in the beginning and 155.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,589 INFO L168 Benchmark]: Boogie Preprocessor took 44.45 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.8 MB in the end (delta: 986.8 kB). Peak memory consumption was 986.8 kB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,589 INFO L168 Benchmark]: RCFGBuilder took 534.25 ms. Allocated memory is still 202.9 MB. Free memory was 153.8 MB in the beginning and 126.7 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,590 INFO L168 Benchmark]: TraceAbstraction took 255332.75 ms. Allocated memory was 202.9 MB in the beginning and 4.0 GB in the end (delta: 3.8 GB). Free memory was 126.7 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2020-10-21 22:18:18,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.23 ms. Allocated memory is still 140.0 MB. Free memory was 122.1 MB in the beginning and 121.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 815.92 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.9 MB in the beginning and 158.7 MB in the end (delta: -56.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 202.9 MB. Free memory was 158.7 MB in the beginning and 155.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.45 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.8 MB in the end (delta: 986.8 kB). Peak memory consumption was 986.8 kB. Max. memory is 7.1 GB. * RCFGBuilder took 534.25 ms. Allocated memory is still 202.9 MB. Free memory was 153.8 MB in the beginning and 126.7 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255332.75 ms. Allocated memory was 202.9 MB in the beginning and 4.0 GB in the end (delta: 3.8 GB). Free memory was 126.7 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1503 VarBasedMoverChecksPositive, 100 VarBasedMoverChecksNegative, 70 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 123 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 94 PlacesBefore, 26 PlacesAfterwards, 104 TransitionsBefore, 33 TransitionsAfterwards, 2240 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 95 TotalNumberOfCompositions, 3625 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3932 VarBasedMoverChecksPositive, 336 VarBasedMoverChecksNegative, 289 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 391 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.8s, 119 PlacesBefore, 44 PlacesAfterwards, 134 TransitionsBefore, 56 TransitionsAfterwards, 6664 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 3 ChoiceCompositions, 116 TotalNumberOfCompositions, 14741 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 7014 VarBasedMoverChecksPositive, 747 VarBasedMoverChecksNegative, 679 SemBasedMoverChecksPositive, 68 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.2s, 684 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 144 PlacesBefore, 58 PlacesAfterwards, 164 TransitionsBefore, 75 TransitionsAfterwards, 12600 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 3 ChoiceCompositions, 130 TotalNumberOfCompositions, 28056 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 11442 VarBasedMoverChecksPositive, 1345 VarBasedMoverChecksNegative, 1250 SemBasedMoverChecksPositive, 95 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 2.1s, 877 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.5s, 169 PlacesBefore, 72 PlacesAfterwards, 194 TransitionsBefore, 94 TransitionsAfterwards, 20272 CoEnabledTransitionPairs, 7 FixpointIterations, 29 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 29 ConcurrentYvCompositions, 3 ChoiceCompositions, 153 TotalNumberOfCompositions, 53462 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing difference of abstraction (325657states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (317723 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 255.0s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 235.6s, HoareTripleCheckerStatistics: 291 SDtfs, 117 SDslu, 317 SDs, 0 SdLazy, 57 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325657occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 1312 SizeOfPredicates, 1 NumberOfNonLiveVariables, 323 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 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