/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_51-mutexptr_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:21:19,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:21:19,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:21:19,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:21:19,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:21:19,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:21:19,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:21:19,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:21:19,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:21:19,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:21:19,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:21:19,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:21:19,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:21:19,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:21:19,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:21:19,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:21:19,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:21:19,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:21:19,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:21:19,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:21:19,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:21:19,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:21:19,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:21:19,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:21:19,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:21:19,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:21:19,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:21:19,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:21:19,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:21:19,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:21:19,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:21:19,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:21:19,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:21:19,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:21:19,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:21:19,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:21:19,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:21:19,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:21:19,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:21:19,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:21:19,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:21:19,516 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 22:21:19,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:21:19,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:21:19,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:21:19,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:21:19,555 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:21:19,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:21:19,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:21:19,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:21:19,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:21:19,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:21:19,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:21:19,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:21:19,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:21:19,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:21:19,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:21:19,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:21:19,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:21:19,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:21:19,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:21:19,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:21:19,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:21:19,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:21:19,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:21:19,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:21:19,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:21:19,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:21:19,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:21:19,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:21:19,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:21:19,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:21:19,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:21:19,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:21:19,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:21:19,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:21:19,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:21:19,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2020-10-21 22:21:19,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809e73faa/5511c9b7101e4f61b1d7ff76ab7c3e51/FLAG842f505f3 [2020-10-21 22:21:20,517 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:21:20,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2020-10-21 22:21:20,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809e73faa/5511c9b7101e4f61b1d7ff76ab7c3e51/FLAG842f505f3 [2020-10-21 22:21:20,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/809e73faa/5511c9b7101e4f61b1d7ff76ab7c3e51 [2020-10-21 22:21:20,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:21:20,820 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:21:20,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:21:20,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:21:20,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:21:20,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:21:20" (1/1) ... [2020-10-21 22:21:20,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420b76ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:20, skipping insertion in model container [2020-10-21 22:21:20,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:21:20" (1/1) ... [2020-10-21 22:21:20,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:21:20,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:21:21,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:21:21,409 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:21:21,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:21:21,541 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:21:21,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21 WrapperNode [2020-10-21 22:21:21,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:21:21,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:21:21,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:21:21,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:21:21,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:21:21,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:21:21,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:21:21,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:21:21,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (1/1) ... [2020-10-21 22:21:21,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:21:21,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:21:21,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:21:21,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:21:21,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (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 22:21:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:21:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:21:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:21:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:21:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:21:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:21:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:21:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:21:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:21:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:21:21,701 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 22:21:22,181 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:21:22,181 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 22:21:22,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:21:22 BoogieIcfgContainer [2020-10-21 22:21:22,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:21:22,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:21:22,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:21:22,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:21:22,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:21:20" (1/3) ... [2020-10-21 22:21:22,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd76246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:21:22, skipping insertion in model container [2020-10-21 22:21:22,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:21:21" (2/3) ... [2020-10-21 22:21:22,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd76246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:21:22, skipping insertion in model container [2020-10-21 22:21:22,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:21:22" (3/3) ... [2020-10-21 22:21:22,194 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2020-10-21 22:21:22,206 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:21:22,207 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:21:22,213 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:21:22,214 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:21:22,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,244 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,245 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,246 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,246 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,246 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,248 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,248 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,248 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,248 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,249 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,250 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,251 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,251 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,251 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,252 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,252 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,252 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,252 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,256 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,257 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,257 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,257 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,258 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,258 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,259 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,259 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,259 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,259 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:22,270 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:21:22,284 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:21:22,305 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:22,305 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:22,305 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:22,305 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:22,305 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:22,305 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:22,306 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:22,306 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:22,321 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:22,324 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 121 transitions, 250 flow [2020-10-21 22:21:22,327 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 121 transitions, 250 flow [2020-10-21 22:21:22,329 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 111 places, 121 transitions, 250 flow [2020-10-21 22:21:22,400 INFO L129 PetriNetUnfolder]: 19/159 cut-off events. [2020-10-21 22:21:22,401 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:21:22,408 INFO L80 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 159 events. 19/159 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 415 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2020-10-21 22:21:22,414 INFO L116 LiptonReduction]: Number of co-enabled transitions 3010 [2020-10-21 22:21:24,287 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-21 22:21:25,040 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-10-21 22:21:25,178 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 22:21:25,934 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-10-21 22:21:26,268 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-21 22:21:26,293 INFO L131 LiptonReduction]: Checked pairs total: 4826 [2020-10-21 22:21:26,293 INFO L133 LiptonReduction]: Total number of compositions: 112 [2020-10-21 22:21:26,324 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 34 transitions, 76 flow [2020-10-21 22:21:26,342 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 156 states. [2020-10-21 22:21:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-10-21 22:21:26,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:21:26,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:26,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:21:26,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:26,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:26,358 INFO L82 PathProgramCache]: Analyzing trace with hash 14612784, now seen corresponding path program 1 times [2020-10-21 22:21:26,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:26,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193694272] [2020-10-21 22:21:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:26,561 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 22:21:26,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193694272] [2020-10-21 22:21:26,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:21:26,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:21:26,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176708919] [2020-10-21 22:21:26,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:21:26,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:26,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:21:26,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:21:26,585 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-10-21 22:21:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:26,631 INFO L93 Difference]: Finished difference Result 151 states and 271 transitions. [2020-10-21 22:21:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:21:26,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:21:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:26,649 INFO L225 Difference]: With dead ends: 151 [2020-10-21 22:21:26,649 INFO L226 Difference]: Without dead ends: 87 [2020-10-21 22:21:26,651 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 22:21:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-21 22:21:26,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-21 22:21:26,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-21 22:21:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 152 transitions. [2020-10-21 22:21:26,697 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 152 transitions. Word has length 4 [2020-10-21 22:21:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:26,698 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 152 transitions. [2020-10-21 22:21:26,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:21:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 152 transitions. [2020-10-21 22:21:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:21:26,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:26,699 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:21:26,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:21:26,699 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:26,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1105716350, now seen corresponding path program 1 times [2020-10-21 22:21:26,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:26,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654074831] [2020-10-21 22:21:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:26,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:26,799 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:26,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:21:26,841 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:21:26,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:21:26,844 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:21:26,844 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:21:26,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,855 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,855 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,861 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,861 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,861 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,863 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,863 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,863 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,864 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,865 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,866 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,867 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,867 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,867 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,869 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,870 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,870 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,870 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,872 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,873 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,873 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,873 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,874 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,874 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,875 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,875 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,875 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,875 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:26,879 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:21:26,879 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:21:26,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:26,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:26,880 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:26,880 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:26,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:26,880 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:26,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:26,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:26,883 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:26,884 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 158 transitions, 334 flow [2020-10-21 22:21:26,884 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 158 transitions, 334 flow [2020-10-21 22:21:26,884 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 143 places, 158 transitions, 334 flow [2020-10-21 22:21:26,938 INFO L129 PetriNetUnfolder]: 34/257 cut-off events. [2020-10-21 22:21:26,939 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:21:26,945 INFO L80 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 257 events. 34/257 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 868 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 161. Up to 8 conditions per place. [2020-10-21 22:21:26,961 INFO L116 LiptonReduction]: Number of co-enabled transitions 9240 [2020-10-21 22:21:29,205 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-21 22:21:30,025 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-21 22:21:30,140 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-21 22:21:30,945 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 139 [2020-10-21 22:21:31,269 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-21 22:21:31,295 INFO L131 LiptonReduction]: Checked pairs total: 17104 [2020-10-21 22:21:31,296 INFO L133 LiptonReduction]: Total number of compositions: 139 [2020-10-21 22:21:31,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 55 transitions, 128 flow [2020-10-21 22:21:31,396 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2113 states. [2020-10-21 22:21:31,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states. [2020-10-21 22:21:31,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:21:31,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:31,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:21:31,398 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:31,398 INFO L82 PathProgramCache]: Analyzing trace with hash 24920273, now seen corresponding path program 1 times [2020-10-21 22:21:31,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:31,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224556968] [2020-10-21 22:21:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:31,441 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 22:21:31,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224556968] [2020-10-21 22:21:31,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:21:31,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:21:31,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705910455] [2020-10-21 22:21:31,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:21:31,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:31,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:21:31,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:21:31,443 INFO L87 Difference]: Start difference. First operand 2113 states. Second operand 3 states. [2020-10-21 22:21:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:31,502 INFO L93 Difference]: Finished difference Result 2108 states and 5618 transitions. [2020-10-21 22:21:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:21:31,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:21:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:31,525 INFO L225 Difference]: With dead ends: 2108 [2020-10-21 22:21:31,526 INFO L226 Difference]: Without dead ends: 1239 [2020-10-21 22:21:31,526 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 22:21:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-21 22:21:31,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-21 22:21:31,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-21 22:21:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-21 22:21:31,645 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-21 22:21:31,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:31,645 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-21 22:21:31,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:21:31,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-21 22:21:31,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:21:31,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:31,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:21:31,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:21:31,647 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:31,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:31,647 INFO L82 PathProgramCache]: Analyzing trace with hash 427027146, now seen corresponding path program 1 times [2020-10-21 22:21:31,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:31,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896790760] [2020-10-21 22:21:31,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:31,764 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 22:21:31,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896790760] [2020-10-21 22:21:31,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029169546] [2020-10-21 22:21:31,765 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 22:21:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:31,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:21:31,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:21:31,891 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 22:21:31,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:21:31,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 22:21:31,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660629398] [2020-10-21 22:21:31,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:21:31,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:31,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:21:31,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:21:31,894 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 5 states. [2020-10-21 22:21:31,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:31,978 INFO L93 Difference]: Finished difference Result 1203 states and 3215 transitions. [2020-10-21 22:21:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:21:31,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-21 22:21:31,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:31,986 INFO L225 Difference]: With dead ends: 1203 [2020-10-21 22:21:31,987 INFO L226 Difference]: Without dead ends: 1203 [2020-10-21 22:21:31,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 22:21:31,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2020-10-21 22:21:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2020-10-21 22:21:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2020-10-21 22:21:32,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 3215 transitions. [2020-10-21 22:21:32,028 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 3215 transitions. Word has length 8 [2020-10-21 22:21:32,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:32,028 INFO L481 AbstractCegarLoop]: Abstraction has 1203 states and 3215 transitions. [2020-10-21 22:21:32,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:21:32,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 3215 transitions. [2020-10-21 22:21:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:21:32,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:32,031 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:21:32,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:21:32,247 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:32,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:32,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2115637892, now seen corresponding path program 1 times [2020-10-21 22:21:32,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:32,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311384735] [2020-10-21 22:21:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:32,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:32,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:32,305 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:21:32,305 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:21:32,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:21:32,309 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:21:32,310 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:21:32,326 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,326 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,326 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,327 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,328 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,328 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,328 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,331 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,332 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,333 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,333 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,336 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,337 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,338 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,338 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,338 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,338 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,339 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,340 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,341 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,342 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,343 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,343 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,343 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,344 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,345 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,346 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,347 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,348 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,349 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,349 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,350 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,351 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,360 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,360 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,360 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,364 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,365 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,366 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,367 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,367 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:32,376 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:21:32,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:21:32,376 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:32,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:32,377 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:32,377 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:32,377 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:32,377 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:32,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:32,377 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:32,383 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:32,383 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 195 transitions, 420 flow [2020-10-21 22:21:32,384 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 195 transitions, 420 flow [2020-10-21 22:21:32,384 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 175 places, 195 transitions, 420 flow [2020-10-21 22:21:32,521 INFO L129 PetriNetUnfolder]: 54/386 cut-off events. [2020-10-21 22:21:32,522 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:21:32,531 INFO L80 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 386 events. 54/386 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1500 event pairs, 1 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 265. Up to 16 conditions per place. [2020-10-21 22:21:32,555 INFO L116 LiptonReduction]: Number of co-enabled transitions 17850 [2020-10-21 22:21:36,094 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2020-10-21 22:21:36,255 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-21 22:21:37,348 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-10-21 22:21:37,671 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-21 22:21:37,686 INFO L131 LiptonReduction]: Checked pairs total: 34997 [2020-10-21 22:21:37,686 INFO L133 LiptonReduction]: Total number of compositions: 166 [2020-10-21 22:21:37,692 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 75 transitions, 180 flow [2020-10-21 22:21:40,052 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26221 states. [2020-10-21 22:21:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 26221 states. [2020-10-21 22:21:40,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:21:40,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:40,053 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:21:40,053 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:40,053 INFO L82 PathProgramCache]: Analyzing trace with hash 37149609, now seen corresponding path program 1 times [2020-10-21 22:21:40,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:40,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741639470] [2020-10-21 22:21:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:40,094 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 22:21:40,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741639470] [2020-10-21 22:21:40,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:21:40,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:21:40,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593448570] [2020-10-21 22:21:40,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:21:40,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:40,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:21:40,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:21:40,096 INFO L87 Difference]: Start difference. First operand 26221 states. Second operand 3 states. [2020-10-21 22:21:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:41,235 INFO L93 Difference]: Finished difference Result 26216 states and 93058 transitions. [2020-10-21 22:21:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:21:41,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:21:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:41,378 INFO L225 Difference]: With dead ends: 26216 [2020-10-21 22:21:41,379 INFO L226 Difference]: Without dead ends: 14919 [2020-10-21 22:21:41,379 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 22:21:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-21 22:21:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-21 22:21:42,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-21 22:21:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-21 22:21:42,291 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-21 22:21:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:42,292 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-21 22:21:42,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:21:42,292 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-21 22:21:42,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:21:42,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:42,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:21:42,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:21:42,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:42,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:42,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1076676821, now seen corresponding path program 1 times [2020-10-21 22:21:42,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:42,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330608028] [2020-10-21 22:21:42,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:42,322 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 22:21:42,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330608028] [2020-10-21 22:21:42,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589594742] [2020-10-21 22:21:42,323 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 22:21:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:42,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:21:42,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:21:42,404 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 22:21:42,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:21:42,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 22:21:42,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200230881] [2020-10-21 22:21:42,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:21:42,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:42,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:21:42,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:21:42,406 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 5 states. [2020-10-21 22:21:42,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:42,759 INFO L93 Difference]: Finished difference Result 14883 states and 53063 transitions. [2020-10-21 22:21:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:21:42,760 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-21 22:21:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:42,817 INFO L225 Difference]: With dead ends: 14883 [2020-10-21 22:21:42,818 INFO L226 Difference]: Without dead ends: 14883 [2020-10-21 22:21:42,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 22:21:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14883 states. [2020-10-21 22:21:43,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14883 to 14883. [2020-10-21 22:21:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14883 states. [2020-10-21 22:21:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14883 states to 14883 states and 53063 transitions. [2020-10-21 22:21:43,503 INFO L78 Accepts]: Start accepts. Automaton has 14883 states and 53063 transitions. Word has length 8 [2020-10-21 22:21:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:43,503 INFO L481 AbstractCegarLoop]: Abstraction has 14883 states and 53063 transitions. [2020-10-21 22:21:43,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:21:43,504 INFO L276 IsEmpty]: Start isEmpty. Operand 14883 states and 53063 transitions. [2020-10-21 22:21:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:21:43,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:43,505 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-21 22:21:43,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:21:43,720 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:43,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:43,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1954211680, now seen corresponding path program 1 times [2020-10-21 22:21:43,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:43,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048073291] [2020-10-21 22:21:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:21:43,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048073291] [2020-10-21 22:21:43,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464142672] [2020-10-21 22:21:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:21:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:21:43,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 22:21:43,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:21:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:21:43,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:21:43,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-21 22:21:43,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454453774] [2020-10-21 22:21:43,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:21:43,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:21:43,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:21:43,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:21:43,899 INFO L87 Difference]: Start difference. First operand 14883 states and 53063 transitions. Second operand 6 states. [2020-10-21 22:21:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:21:45,062 INFO L93 Difference]: Finished difference Result 14451 states and 51839 transitions. [2020-10-21 22:21:45,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:21:45,063 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-21 22:21:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:21:45,146 INFO L225 Difference]: With dead ends: 14451 [2020-10-21 22:21:45,147 INFO L226 Difference]: Without dead ends: 14451 [2020-10-21 22:21:45,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:21:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14451 states. [2020-10-21 22:21:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14451 to 14451. [2020-10-21 22:21:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14451 states. [2020-10-21 22:21:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14451 states to 14451 states and 51839 transitions. [2020-10-21 22:21:45,758 INFO L78 Accepts]: Start accepts. Automaton has 14451 states and 51839 transitions. Word has length 12 [2020-10-21 22:21:45,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:21:45,758 INFO L481 AbstractCegarLoop]: Abstraction has 14451 states and 51839 transitions. [2020-10-21 22:21:45,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:21:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 14451 states and 51839 transitions. [2020-10-21 22:21:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:21:45,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:21:45,761 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 22:21:45,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:21:45,974 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:21:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:21:45,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1914221934, now seen corresponding path program 1 times [2020-10-21 22:21:45,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:21:45,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725969845] [2020-10-21 22:21:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:21:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:46,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:21:46,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:21:46,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:21:46,033 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:21:46,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 22:21:46,034 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:21:46,034 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:21:46,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,045 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,046 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,050 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,054 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,055 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,056 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,060 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,061 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,062 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,063 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,064 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,065 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,066 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,067 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,067 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,068 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,069 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,069 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,070 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~mp1~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:21:46,078 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:21:46,078 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:21:46,079 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:21:46,079 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:21:46,079 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:21:46,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:21:46,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:21:46,079 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:21:46,079 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:21:46,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:21:46,082 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:21:46,082 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 232 transitions, 508 flow [2020-10-21 22:21:46,082 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 232 transitions, 508 flow [2020-10-21 22:21:46,082 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 207 places, 232 transitions, 508 flow [2020-10-21 22:21:46,162 INFO L129 PetriNetUnfolder]: 86/579 cut-off events. [2020-10-21 22:21:46,163 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 22:21:46,171 INFO L80 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 579 events. 86/579 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2444 event pairs, 6 based on Foata normal form. 0/488 useless extension candidates. Maximal degree in co-relation 406. Up to 32 conditions per place. [2020-10-21 22:21:46,204 INFO L116 LiptonReduction]: Number of co-enabled transitions 29120 [2020-10-21 22:21:46,677 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-21 22:21:48,499 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-10-21 22:21:49,734 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-21 22:21:49,843 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-21 22:21:50,883 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-21 22:21:51,026 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-21 22:21:52,388 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 139 [2020-10-21 22:21:52,752 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-21 22:21:52,768 INFO L131 LiptonReduction]: Checked pairs total: 63996 [2020-10-21 22:21:52,768 INFO L133 LiptonReduction]: Total number of compositions: 198 [2020-10-21 22:21:52,769 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 93 transitions, 230 flow [2020-10-21 22:25:21,258 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 325657 states. [2020-10-21 22:25:21,259 INFO L276 IsEmpty]: Start isEmpty. Operand 325657 states. [2020-10-21 22:25:21,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:25:21,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:25:21,259 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:25:21,260 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:25:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:25:21,260 INFO L82 PathProgramCache]: Analyzing trace with hash 51498422, now seen corresponding path program 1 times [2020-10-21 22:25:21,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:25:21,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899788150] [2020-10-21 22:25:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:25:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:25:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:25:21,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899788150] [2020-10-21 22:25:21,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:25:21,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:25:21,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709661382] [2020-10-21 22:25:21,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:25:21,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:25:21,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:25:21,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:25:21,295 INFO L87 Difference]: Start difference. First operand 325657 states. Second operand 3 states. [2020-10-21 22:25:24,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:25:24,767 INFO L93 Difference]: Finished difference Result 325652 states and 1444602 transitions. [2020-10-21 22:25:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:25:24,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:25:24,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2020-10-21 22:25:35,478 INFO L225 Difference]: With dead ends: 325652 [2020-10-21 22:25:35,478 INFO L226 Difference]: Without dead ends: 179079 [2020-10-21 22:25:35,478 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 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown