/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:39:07,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:39:07,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:39:07,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:39:07,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:39:07,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:39:07,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:39:07,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:39:07,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:39:07,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:39:07,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:39:07,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:39:07,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:39:07,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:39:07,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:39:07,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:39:07,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:39:07,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:39:07,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:39:07,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:39:07,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:39:07,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:39:07,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:39:07,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:39:07,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:39:07,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:39:07,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:39:07,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:39:07,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:39:07,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:39:07,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:39:07,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:39:07,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:39:07,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:39:07,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:39:07,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:39:07,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 22:39:07,532 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:39:07,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:39:07,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:39:07,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:39:07,535 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:39:07,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:39:07,536 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:39:07,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:39:07,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:39:07,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:39:07,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:39:07,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:39:07,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:39:07,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:39:07,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:39:07,540 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:39:07,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:39:07,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:39:07,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:39:07,541 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:39:07,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:39:07,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:39:07,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:39:07,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 22:39:07,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:39:07,542 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:39:07,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:39:07,542 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 22:39:07,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:39:07,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:39:07,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:39:07,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:39:07,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:39:07,906 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:39:07,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-21 22:39:07,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aded8cd2/c4fe1b0a9e3347d8a6183f905cbd6848/FLAGf57e5f74d [2020-10-21 22:39:08,522 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:39:08,523 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-21 22:39:08,539 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aded8cd2/c4fe1b0a9e3347d8a6183f905cbd6848/FLAGf57e5f74d [2020-10-21 22:39:08,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1aded8cd2/c4fe1b0a9e3347d8a6183f905cbd6848 [2020-10-21 22:39:08,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:39:08,838 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:39:08,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:39:08,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:39:08,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:39:08,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:39:08" (1/1) ... [2020-10-21 22:39:08,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36135037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:08, skipping insertion in model container [2020-10-21 22:39:08,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:39:08" (1/1) ... [2020-10-21 22:39:08,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:39:08,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:39:09,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:09,362 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:39:09,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:39:09,548 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:39:09,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09 WrapperNode [2020-10-21 22:39:09,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:39:09,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:09,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:39:09,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:39:09,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:39:09,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:39:09,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:39:09,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:39:09,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (1/1) ... [2020-10-21 22:39:09,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:39:09,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:39:09,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:39:09,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:39:09,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (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 22:39:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-21 22:39:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-21 22:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-21 22:39:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-21 22:39:09,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:39:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:39:09,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:39:09,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:39:09,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:39:09,722 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 22:39:10,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:39:10,151 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:39:10,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:10 BoogieIcfgContainer [2020-10-21 22:39:10,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:39:10,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:39:10,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:39:10,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:39:10,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:39:08" (1/3) ... [2020-10-21 22:39:10,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:10, skipping insertion in model container [2020-10-21 22:39:10,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:39:09" (2/3) ... [2020-10-21 22:39:10,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c0aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:39:10, skipping insertion in model container [2020-10-21 22:39:10,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:39:10" (3/3) ... [2020-10-21 22:39:10,164 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-21 22:39:10,181 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:39:10,181 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:39:10,191 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 22:39:10,192 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:39:10,227 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,227 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,227 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,227 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,228 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,228 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,229 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,229 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,230 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,230 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,230 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,231 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,231 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,231 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,232 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,232 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,233 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,233 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,233 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,233 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,234 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,234 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,235 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,235 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,235 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,236 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,239 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,240 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,240 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,240 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,241 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,241 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,241 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,241 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,247 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,247 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,248 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,248 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,248 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,248 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,249 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:39:10,270 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:39:10,281 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 22:39:10,300 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:39:10,300 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:39:10,300 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 22:39:10,300 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:39:10,300 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:39:10,300 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:39:10,301 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:39:10,301 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:39:10,315 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 22:39:10,316 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 98 transitions, 218 flow [2020-10-21 22:39:10,318 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 98 transitions, 218 flow [2020-10-21 22:39:10,320 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 98 transitions, 218 flow [2020-10-21 22:39:10,377 INFO L129 PetriNetUnfolder]: 8/98 cut-off events. [2020-10-21 22:39:10,378 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 22:39:10,385 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 98 events. 8/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2020-10-21 22:39:10,388 INFO L116 LiptonReduction]: Number of co-enabled transitions 1376 [2020-10-21 22:39:12,377 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112 [2020-10-21 22:39:12,550 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-21 22:39:13,240 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 137 [2020-10-21 22:39:13,552 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-21 22:39:13,563 INFO L131 LiptonReduction]: Checked pairs total: 5213 [2020-10-21 22:39:13,564 INFO L133 LiptonReduction]: Total number of compositions: 84 [2020-10-21 22:39:13,571 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-10-21 22:39:13,593 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 218 states. [2020-10-21 22:39:13,595 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states. [2020-10-21 22:39:13,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-21 22:39:13,603 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:13,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-21 22:39:13,604 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:13,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:13,611 INFO L82 PathProgramCache]: Analyzing trace with hash 361832587, now seen corresponding path program 1 times [2020-10-21 22:39:13,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:13,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654362085] [2020-10-21 22:39:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:13,860 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 22:39:13,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654362085] [2020-10-21 22:39:13,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:13,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:13,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934128967] [2020-10-21 22:39:13,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:13,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:13,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:13,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:13,884 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 3 states. [2020-10-21 22:39:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:13,920 INFO L93 Difference]: Finished difference Result 218 states and 483 transitions. [2020-10-21 22:39:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:13,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-21 22:39:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:13,937 INFO L225 Difference]: With dead ends: 218 [2020-10-21 22:39:13,937 INFO L226 Difference]: Without dead ends: 188 [2020-10-21 22:39:13,938 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 22:39:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-21 22:39:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-21 22:39:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-21 22:39:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 412 transitions. [2020-10-21 22:39:14,015 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 412 transitions. Word has length 5 [2020-10-21 22:39:14,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,015 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 412 transitions. [2020-10-21 22:39:14,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:14,016 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 412 transitions. [2020-10-21 22:39:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:39:14,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:14,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:39:14,021 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1026348029, now seen corresponding path program 1 times [2020-10-21 22:39:14,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541499942] [2020-10-21 22:39:14,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,114 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 22:39:14,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541499942] [2020-10-21 22:39:14,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:14,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039029311] [2020-10-21 22:39:14,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:14,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:14,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:14,118 INFO L87 Difference]: Start difference. First operand 188 states and 412 transitions. Second operand 3 states. [2020-10-21 22:39:14,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,150 INFO L93 Difference]: Finished difference Result 207 states and 430 transitions. [2020-10-21 22:39:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:14,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:39:14,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,153 INFO L225 Difference]: With dead ends: 207 [2020-10-21 22:39:14,153 INFO L226 Difference]: Without dead ends: 153 [2020-10-21 22:39:14,154 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 22:39:14,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-21 22:39:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 139. [2020-10-21 22:39:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-21 22:39:14,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 282 transitions. [2020-10-21 22:39:14,169 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 282 transitions. Word has length 8 [2020-10-21 22:39:14,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,170 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 282 transitions. [2020-10-21 22:39:14,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:14,170 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 282 transitions. [2020-10-21 22:39:14,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:39:14,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:14,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:39:14,172 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1612503543, now seen corresponding path program 1 times [2020-10-21 22:39:14,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806688476] [2020-10-21 22:39:14,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,236 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 22:39:14,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806688476] [2020-10-21 22:39:14,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:39:14,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610510632] [2020-10-21 22:39:14,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:14,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:14,239 INFO L87 Difference]: Start difference. First operand 139 states and 282 transitions. Second operand 3 states. [2020-10-21 22:39:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,258 INFO L93 Difference]: Finished difference Result 128 states and 244 transitions. [2020-10-21 22:39:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:14,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:39:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,260 INFO L225 Difference]: With dead ends: 128 [2020-10-21 22:39:14,260 INFO L226 Difference]: Without dead ends: 96 [2020-10-21 22:39:14,261 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 22:39:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-21 22:39:14,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2020-10-21 22:39:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-21 22:39:14,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 181 transitions. [2020-10-21 22:39:14,268 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 181 transitions. Word has length 8 [2020-10-21 22:39:14,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,269 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 181 transitions. [2020-10-21 22:39:14,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 181 transitions. [2020-10-21 22:39:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:39:14,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:14,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:39:14,271 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash -213097666, now seen corresponding path program 1 times [2020-10-21 22:39:14,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526582413] [2020-10-21 22:39:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,344 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 22:39:14,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526582413] [2020-10-21 22:39:14,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:39:14,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970124985] [2020-10-21 22:39:14,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:39:14,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:39:14,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:39:14,347 INFO L87 Difference]: Start difference. First operand 96 states and 181 transitions. Second operand 3 states. [2020-10-21 22:39:14,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,358 INFO L93 Difference]: Finished difference Result 96 states and 175 transitions. [2020-10-21 22:39:14,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:39:14,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:39:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,360 INFO L225 Difference]: With dead ends: 96 [2020-10-21 22:39:14,360 INFO L226 Difference]: Without dead ends: 78 [2020-10-21 22:39:14,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:39:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-21 22:39:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-21 22:39:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-21 22:39:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 139 transitions. [2020-10-21 22:39:14,366 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 139 transitions. Word has length 13 [2020-10-21 22:39:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,367 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 139 transitions. [2020-10-21 22:39:14,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:39:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 139 transitions. [2020-10-21 22:39:14,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:39:14,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:39:14,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:39:14,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:39:14,368 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:39:14,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:39:14,369 INFO L82 PathProgramCache]: Analyzing trace with hash -991143132, now seen corresponding path program 1 times [2020-10-21 22:39:14,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:39:14,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823794968] [2020-10-21 22:39:14,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:39:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:39:14,419 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 22:39:14,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823794968] [2020-10-21 22:39:14,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:39:14,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:39:14,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307036540] [2020-10-21 22:39:14,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:39:14,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:39:14,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:39:14,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:39:14,421 INFO L87 Difference]: Start difference. First operand 78 states and 139 transitions. Second operand 4 states. [2020-10-21 22:39:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:39:14,447 INFO L93 Difference]: Finished difference Result 26 states and 43 transitions. [2020-10-21 22:39:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:39:14,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 22:39:14,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:39:14,448 INFO L225 Difference]: With dead ends: 26 [2020-10-21 22:39:14,448 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:39:14,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:39:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:39:14,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:39:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:39:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:39:14,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-21 22:39:14,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:39:14,450 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:39:14,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:39:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:39:14,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:39:14,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:39:14,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:39:14 BasicIcfg [2020-10-21 22:39:14,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:39:14,457 INFO L168 Benchmark]: Toolchain (without parser) took 5623.78 ms. Allocated memory was 143.7 MB in the beginning and 273.2 MB in the end (delta: 129.5 MB). Free memory was 105.6 MB in the beginning and 149.4 MB in the end (delta: -43.8 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,458 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.24 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 104.6 MB in the beginning and 161.3 MB in the end (delta: -56.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.12 ms. Allocated memory is still 205.5 MB. Free memory was 161.3 MB in the beginning and 158.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,461 INFO L168 Benchmark]: Boogie Preprocessor took 30.58 ms. Allocated memory is still 205.5 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,462 INFO L168 Benchmark]: RCFGBuilder took 520.97 ms. Allocated memory is still 205.5 MB. Free memory was 157.6 MB in the beginning and 130.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,462 INFO L168 Benchmark]: TraceAbstraction took 4299.91 ms. Allocated memory was 205.5 MB in the beginning and 273.2 MB in the end (delta: 67.6 MB). Free memory was 130.2 MB in the beginning and 149.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:39:14,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 125.2 MB in the beginning and 125.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.24 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 104.6 MB in the beginning and 161.3 MB in the end (delta: -56.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.12 ms. Allocated memory is still 205.5 MB. Free memory was 161.3 MB in the beginning and 158.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.58 ms. Allocated memory is still 205.5 MB. Free memory was 158.9 MB in the beginning and 157.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 520.97 ms. Allocated memory is still 205.5 MB. Free memory was 157.6 MB in the beginning and 130.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4299.91 ms. Allocated memory was 205.5 MB in the beginning and 273.2 MB in the end (delta: 67.6 MB). Free memory was 130.2 MB in the beginning and 149.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 822 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 146 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.2s, 96 PlacesBefore, 35 PlacesAfterwards, 98 TransitionsBefore, 34 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 84 TotalNumberOfCompositions, 5213 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 129 SDtfs, 72 SDslu, 61 SDs, 0 SdLazy, 22 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...