/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf -i ../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:00:39,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:00:39,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:00:39,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:00:39,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:00:39,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:00:39,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:00:39,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:00:39,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:00:39,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:00:39,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:00:39,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:00:39,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:00:39,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:00:39,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:00:39,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:00:39,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:00:39,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:00:39,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:00:39,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:00:39,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:00:39,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:00:39,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:00:39,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:00:39,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:00:39,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:00:39,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:00:39,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:00:39,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:00:39,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:00:39,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:00:39,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:00:39,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:00:39,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:00:39,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:00:39,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:00:39,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:00:39,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:00:39,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:00:39,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:00:39,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:00:39,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe-McrStrategy.epf [2020-04-18 16:00:39,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:00:39,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:00:39,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:00:39,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:00:39,435 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:00:39,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:00:39,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:00:39,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:00:39,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:00:39,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:00:39,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:00:39,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:00:39,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:00:39,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:00:39,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:00:39,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:00:39,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:00:39,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:00:39,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:00:39,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:00:39,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:00:39,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:00:39,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:00:39,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:00:39,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:00:39,439 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:00:39,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:00:39,439 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-04-18 16:00:39,440 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:00:39,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:00:39,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:00:39,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:00:39,768 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:00:39,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:00:39,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:00:39,773 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:00:39,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-04-18 16:00:39,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759ac3e71/beba920c4746483b9aaa22ead3d4a5f2/FLAG301766875 [2020-04-18 16:00:40,290 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:00:40,290 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/forkJoinNotMod.c [2020-04-18 16:00:40,291 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 16:00:40,291 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2020-04-18 16:00:40,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759ac3e71/beba920c4746483b9aaa22ead3d4a5f2/FLAG301766875 [2020-04-18 16:00:40,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/759ac3e71/beba920c4746483b9aaa22ead3d4a5f2 [2020-04-18 16:00:40,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:00:40,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:00:40,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:00:40,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:00:40,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:00:40,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:00:40" (1/1) ... [2020-04-18 16:00:40,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f8d65dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:40, skipping insertion in model container [2020-04-18 16:00:40,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:00:40" (1/1) ... [2020-04-18 16:00:40,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:00:40,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:00:40,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:00:41,018 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:00:41,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:00:41,053 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:00:41,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41 WrapperNode [2020-04-18 16:00:41,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:00:41,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:00:41,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:00:41,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:00:41,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:00:41,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:00:41,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:00:41,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:00:41,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (1/1) ... [2020-04-18 16:00:41,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:00:41,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:00:41,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:00:41,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:00:41,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (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 [2020-04-18 16:00:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:00:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-04-18 16:00:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-04-18 16:00:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2020-04-18 16:00:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2020-04-18 16:00:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:00:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:00:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 16:00:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-18 16:00:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-04-18 16:00:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:00:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:00:41,177 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:00:41,548 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:00:41,548 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-18 16:00:41,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:00:41 BoogieIcfgContainer [2020-04-18 16:00:41,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:00:41,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:00:41,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:00:41,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:00:41,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:00:40" (1/3) ... [2020-04-18 16:00:41,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c6ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:00:41, skipping insertion in model container [2020-04-18 16:00:41,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:00:41" (2/3) ... [2020-04-18 16:00:41,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c6ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:00:41, skipping insertion in model container [2020-04-18 16:00:41,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:00:41" (3/3) ... [2020-04-18 16:00:41,560 INFO L109 eAbstractionObserver]: Analyzing ICFG forkJoinNotMod.c [2020-04-18 16:00:41,570 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:00:41,570 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:00:41,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-04-18 16:00:41,578 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:00:41,639 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,639 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,640 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,640 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,640 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,640 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,641 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,641 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,641 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,641 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,642 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,643 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,644 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,644 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,645 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,646 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,646 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,646 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,646 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,646 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,647 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,647 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,647 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,647 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,647 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,648 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,648 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,648 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,648 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,649 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,649 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,650 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,650 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,650 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,650 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,651 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,651 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,651 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,651 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,651 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,652 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,652 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,652 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,652 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,653 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,653 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,653 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,653 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,654 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,654 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,654 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,654 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,654 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,655 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,655 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,655 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,655 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,656 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,656 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,656 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,656 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,657 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,657 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,657 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,657 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,661 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,662 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,662 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,662 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,663 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,663 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,663 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,663 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,664 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,664 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,664 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,664 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,665 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem8.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,665 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,665 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,665 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,666 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,666 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,666 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,666 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,666 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem15.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,667 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_#t~mem11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,667 WARN L315 ript$VariableManager]: TermVariabe |incrementThread1of1ForFork0_~#result~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:00:41,689 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 16:00:41,706 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:00:41,706 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:00:41,707 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:00:41,707 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:00:41,707 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:00:41,707 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:00:41,707 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:00:41,708 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:00:41,723 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 75 transitions, 158 flow [2020-04-18 16:00:41,725 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2020-04-18 16:00:41,785 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2020-04-18 16:00:41,786 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 16:00:41,788 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-04-18 16:00:41,790 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 158 flow [2020-04-18 16:00:41,811 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2020-04-18 16:00:41,812 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-04-18 16:00:41,812 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 74 events. 0/74 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-04-18 16:00:41,814 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 496 [2020-04-18 16:00:41,815 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-04-18 16:00:42,584 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-04-18 16:00:43,312 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-04-18 16:00:43,739 WARN L192 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-04-18 16:00:43,902 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-04-18 16:00:44,090 INFO L539 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:44,161 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:44,171 INFO L539 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:44,240 INFO L619 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-04-18 16:00:44,241 INFO L539 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-04-18 16:00:44,242 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:125, output treesize:127 [2020-04-18 16:00:44,504 WARN L192 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-04-18 16:00:44,670 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-04-18 16:00:45,995 WARN L192 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 129 DAG size of output: 127 [2020-04-18 16:00:46,461 WARN L192 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-04-18 16:00:46,463 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2020-04-18 16:00:46,464 INFO L214 etLargeBlockEncoding]: Total number of compositions: 69 [2020-04-18 16:00:46,467 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 13 transitions, 34 flow [2020-04-18 16:00:46,475 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-04-18 16:00:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-04-18 16:00:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 16:00:46,486 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:46,487 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-04-18 16:00:46,487 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:46,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:46,492 INFO L82 PathProgramCache]: Analyzing trace with hash 277840, now seen corresponding path program 1 times [2020-04-18 16:00:46,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:46,499 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1019912569] [2020-04-18 16:00:46,514 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:46,524 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 16:00:46,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-04-18 16:00:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 16:00:46,526 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:46,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:46,526 INFO L82 PathProgramCache]: Analyzing trace with hash 277840, now seen corresponding path program 2 times [2020-04-18 16:00:46,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:46,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034420029] [2020-04-18 16:00:46,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:46,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034420029] [2020-04-18 16:00:46,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:46,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 16:00:46,698 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:46,699 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:46,700 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 16:00:46,700 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:46,710 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:46,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:00:46,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:00:46,716 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-04-18 16:00:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:46,721 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2020-04-18 16:00:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-04-18 16:00:46,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:46,722 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1019912569] [2020-04-18 16:00:46,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:46,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 16:00:46,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1019912569] [2020-04-18 16:00:46,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:00:46,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:46,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:00:46,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:00:46,729 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2020-04-18 16:00:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:46,749 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2020-04-18 16:00:46,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:00:46,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-04-18 16:00:46,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:46,772 INFO L225 Difference]: With dead ends: 17 [2020-04-18 16:00:46,772 INFO L226 Difference]: Without dead ends: 16 [2020-04-18 16:00:46,775 INFO L678 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 [2020-04-18 16:00:46,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-04-18 16:00:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-04-18 16:00:46,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-04-18 16:00:46,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-04-18 16:00:46,814 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 21 transitions. Word has length 3 [2020-04-18 16:00:46,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:46,814 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-04-18 16:00:46,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:00:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-04-18 16:00:46,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 16:00:46,815 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:46,815 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-04-18 16:00:46,815 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:46,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:46,816 INFO L82 PathProgramCache]: Analyzing trace with hash 277825, now seen corresponding path program 1 times [2020-04-18 16:00:46,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:46,816 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [485644586] [2020-04-18 16:00:46,816 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:46,817 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 16:00:46,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-04-18 16:00:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-04-18 16:00:46,817 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:46,818 INFO L82 PathProgramCache]: Analyzing trace with hash 277825, now seen corresponding path program 2 times [2020-04-18 16:00:46,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:46,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355423378] [2020-04-18 16:00:46,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:46,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:46,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355423378] [2020-04-18 16:00:46,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:46,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-18 16:00:46,938 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:46,939 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:46,940 INFO L259 McrAutomatonBuilder]: Finished intersection with 4 states and 3 transitions. [2020-04-18 16:00:46,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:46,943 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:46,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:00:46,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:00:46,944 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2020-04-18 16:00:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:46,946 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2020-04-18 16:00:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-04-18 16:00:46,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:46,960 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [485644586] [2020-04-18 16:00:46,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:46,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [1] total 1 [2020-04-18 16:00:46,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [485644586] [2020-04-18 16:00:46,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:00:46,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:46,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:00:46,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:00:46,962 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. Second operand 3 states. [2020-04-18 16:00:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:46,994 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2020-04-18 16:00:46,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:00:46,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-04-18 16:00:46,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:46,995 INFO L225 Difference]: With dead ends: 20 [2020-04-18 16:00:46,995 INFO L226 Difference]: Without dead ends: 17 [2020-04-18 16:00:46,996 INFO L678 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 [2020-04-18 16:00:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-04-18 16:00:46,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-04-18 16:00:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-04-18 16:00:46,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-04-18 16:00:47,000 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 3 [2020-04-18 16:00:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:47,000 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-04-18 16:00:47,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:00:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-04-18 16:00:47,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 16:00:47,001 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:47,001 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-18 16:00:47,001 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:47,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:47,001 INFO L82 PathProgramCache]: Analyzing trace with hash 8613291, now seen corresponding path program 1 times [2020-04-18 16:00:47,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:47,002 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1508684052] [2020-04-18 16:00:47,002 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:47,003 INFO L259 McrAutomatonBuilder]: Finished intersection with 6 states and 6 transitions. [2020-04-18 16:00:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-04-18 16:00:47,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-18 16:00:47,003 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:47,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:47,004 INFO L82 PathProgramCache]: Analyzing trace with hash 8613291, now seen corresponding path program 2 times [2020-04-18 16:00:47,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:47,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626159954] [2020-04-18 16:00:47,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:00:47,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:00:47,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626159954] [2020-04-18 16:00:47,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:00:47,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 16:00:47,076 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:00:47,076 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:47,079 INFO L259 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-04-18 16:00:47,079 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:00:47,091 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:00:47,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:00:47,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:00:47,092 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2020-04-18 16:00:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:47,103 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2020-04-18 16:00:47,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-04-18 16:00:47,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:00:47,104 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1508684052] [2020-04-18 16:00:47,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:00:47,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 16:00:47,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1508684052] [2020-04-18 16:00:47,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-18 16:00:47,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:00:47,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:00:47,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:00:47,106 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 4 states. [2020-04-18 16:00:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:00:47,136 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-04-18 16:00:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:00:47,136 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-04-18 16:00:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:00:47,137 INFO L225 Difference]: With dead ends: 14 [2020-04-18 16:00:47,137 INFO L226 Difference]: Without dead ends: 14 [2020-04-18 16:00:47,138 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:00:47,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-04-18 16:00:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-04-18 16:00:47,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-04-18 16:00:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2020-04-18 16:00:47,140 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2020-04-18 16:00:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:00:47,141 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-04-18 16:00:47,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-18 16:00:47,141 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-04-18 16:00:47,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 16:00:47,141 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:00:47,142 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-18 16:00:47,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2020-04-18 16:00:47,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:47,142 INFO L82 PathProgramCache]: Analyzing trace with hash 267013202, now seen corresponding path program 1 times [2020-04-18 16:00:47,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:00:47,143 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1603322754] [2020-04-18 16:00:47,143 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:00:47,144 INFO L259 McrAutomatonBuilder]: Finished intersection with 8 states and 9 transitions. [2020-04-18 16:00:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-04-18 16:00:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-18 16:00:47,145 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:00:47,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:00:47,145 INFO L82 PathProgramCache]: Analyzing trace with hash 267013202, now seen corresponding path program 2 times [2020-04-18 16:00:47,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:00:47,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985298914] [2020-04-18 16:00:47,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:00:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:00:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 16:00:47,275 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 16:00:47,275 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 16:00:47,275 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 16:00:47,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:00:47 BasicIcfg [2020-04-18 16:00:47,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:00:47,324 INFO L168 Benchmark]: Toolchain (without parser) took 6624.85 ms. Allocated memory was 145.8 MB in the beginning and 266.3 MB in the end (delta: 120.6 MB). Free memory was 101.2 MB in the beginning and 206.3 MB in the end (delta: -105.1 MB). Peak memory consumption was 15.5 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,325 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.63 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 180.7 MB in the end (delta: -81.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 178.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,334 INFO L168 Benchmark]: Boogie Preprocessor took 24.41 ms. Allocated memory is still 203.4 MB. Free memory was 178.6 MB in the beginning and 177.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,335 INFO L168 Benchmark]: RCFGBuilder took 437.32 ms. Allocated memory is still 203.4 MB. Free memory was 177.3 MB in the beginning and 153.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,335 INFO L168 Benchmark]: TraceAbstraction took 5767.94 ms. Allocated memory was 203.4 MB in the beginning and 266.3 MB in the end (delta: 62.9 MB). Free memory was 153.2 MB in the beginning and 206.3 MB in the end (delta: -53.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:00:47,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 335.63 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 99.2 MB in the beginning and 180.7 MB in the end (delta: -81.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 178.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.41 ms. Allocated memory is still 203.4 MB. Free memory was 178.6 MB in the beginning and 177.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.32 ms. Allocated memory is still 203.4 MB. Free memory was 177.3 MB in the beginning and 153.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5767.94 ms. Allocated memory was 203.4 MB in the beginning and 266.3 MB in the end (delta: 62.9 MB). Free memory was 153.2 MB in the beginning and 206.3 MB in the end (delta: -53.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.7s, 79 ProgramPointsBefore, 17 ProgramPointsAfterwards, 75 TransitionsBefore, 13 TransitionsAfterwards, 496 CoEnabledTransitionPairs, 7 FixpointIterations, 33 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 257 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 69 TotalNumberOfCompositions - CounterExampleResult [Line: 33]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 int globVar; [L27] 0 int locVar = 7; [L28] 0 globVar = 0 [L30] 0 pthread_t thread_id; [L32] FCALL, FORK 0 pthread_create(&thread_id, NULL, increment, &globVar) VAL [globVar={11:0}, n={11:0}] [L18] 1 int *result = (int *)n; [L18] EXPR 1 \read(*n) [L18] 1 int *result = (int *)n; [L19] EXPR 1 \read(*result) [L19] 1 (*result)++ [L20] 1 \read(*result) [L21] 1 \read(*result) [L23] EXPR 1 \read(*result) [L23] 1 return (void *)result; [L23] 1 return (void *)result; [L18] 1 int *result = (int *)n; [L23] 1 return (void *)result; [L33] FCALL 0 IdentifierExpression[globVar] [L33] 0 CodeAnnotStmt[Assertion] VAL [\result={11:0}, globVar={11:0}, n={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 17 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 26 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...