/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:52:03,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:52:03,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:52:03,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:52:03,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:52:03,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:52:03,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:52:03,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:52:03,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:52:03,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:52:03,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:52:03,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:52:03,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:52:03,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:52:03,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:52:03,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:52:03,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:52:03,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:52:03,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:52:03,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:52:03,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:52:03,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:52:03,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:52:03,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:52:03,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-26 20:52:03,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-26 20:52:03,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-26 20:52:03,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-26 20:52:03,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-26 20:52:03,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-26 20:52:03,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:52:03,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:52:03,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:52:03,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:52:03,445 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:52:03,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:52:03,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:52:03,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:52:03,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:52:03,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:52:03,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:52:03,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 20:52:03,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:52:03,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:52:03,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:52:03,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:52:03,487 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:52:03,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:52:03,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:52:03,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:52:03,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:52:03,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:52:03,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:52:03,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:52:03,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:52:03,494 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:52:03,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:52:03,494 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:52:03,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:52:03,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:52:03,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:52:03,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:52:03,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:52:03,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:52:03,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:52:03,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:52:03,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:52:03,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:52:03,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:52:03,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:52:03,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:52:03,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:52:03,794 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:52:03,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:52:03,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:52:03,812 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:52:03,813 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:52:03,814 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2019-12-26 20:52:03,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4458e0bd8/e5341695ac4743e28f8d486c0ece0b30/FLAGe43cdbd94 [2019-12-26 20:52:04,344 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:52:04,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2019-12-26 20:52:04,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4458e0bd8/e5341695ac4743e28f8d486c0ece0b30/FLAGe43cdbd94 [2019-12-26 20:52:04,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4458e0bd8/e5341695ac4743e28f8d486c0ece0b30 [2019-12-26 20:52:04,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:52:04,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:52:04,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:52:04,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:52:04,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:52:04,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:52:04" (1/1) ... [2019-12-26 20:52:04,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebd0dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:04, skipping insertion in model container [2019-12-26 20:52:04,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:52:04" (1/1) ... [2019-12-26 20:52:04,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:52:04,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:52:05,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:52:05,267 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:52:05,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:52:05,397 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:52:05,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05 WrapperNode [2019-12-26 20:52:05,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:52:05,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:52:05,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:52:05,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:52:05,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:52:05,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:52:05,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:52:05,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:52:05,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (1/1) ... [2019-12-26 20:52:05,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:52:05,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:52:05,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:52:05,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:52:05,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (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 [2019-12-26 20:52:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2019-12-26 20:52:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2019-12-26 20:52:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-26 20:52:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2019-12-26 20:52:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2019-12-26 20:52:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:52:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-26 20:52:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:52:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:52:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-26 20:52:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:52:05,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:52:05,552 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:52:05,952 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:52:05,953 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-26 20:52:05,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:52:05 BoogieIcfgContainer [2019-12-26 20:52:05,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:52:05,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:52:05,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:52:05,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:52:05,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:52:04" (1/3) ... [2019-12-26 20:52:05,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:52:05, skipping insertion in model container [2019-12-26 20:52:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:52:05" (2/3) ... [2019-12-26 20:52:05,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:52:05, skipping insertion in model container [2019-12-26 20:52:05,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:52:05" (3/3) ... [2019-12-26 20:52:05,962 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2019-12-26 20:52:05,972 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:52:05,973 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:52:05,979 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-26 20:52:05,980 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:52:06,006 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,007 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,007 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,007 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,008 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,008 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,008 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,009 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,009 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,010 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,011 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,011 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,011 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,011 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,012 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,012 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,013 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,013 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,017 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,017 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,018 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,018 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,018 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,019 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,024 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,025 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,025 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,025 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,026 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:52:06,048 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-26 20:52:06,069 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:52:06,069 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:52:06,070 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:52:06,070 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:52:06,070 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:52:06,070 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:52:06,070 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:52:06,071 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:52:06,086 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions [2019-12-26 20:52:06,088 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions [2019-12-26 20:52:06,139 INFO L132 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-26 20:52:06,139 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:52:06,146 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 79 events. 5/79 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs. 0/73 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2019-12-26 20:52:06,150 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions [2019-12-26 20:52:06,173 INFO L132 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-26 20:52:06,173 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:52:06,175 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 79 events. 5/79 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs. 0/73 useless extension candidates. Maximal degree in co-relation 49. Up to 3 conditions per place. [2019-12-26 20:52:06,177 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 886 [2019-12-26 20:52:06,178 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:52:07,946 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2019-12-26 20:52:08,119 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-12-26 20:52:08,630 WARN L192 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2019-12-26 20:52:08,824 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-12-26 20:52:08,837 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2175 [2019-12-26 20:52:08,837 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2019-12-26 20:52:08,841 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 32 transitions [2019-12-26 20:52:08,858 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2019-12-26 20:52:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-12-26 20:52:08,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:52:08,867 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:52:08,868 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:52:08,868 INFO L410 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:52:08,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:52:08,874 INFO L82 PathProgramCache]: Analyzing trace with hash 281465562, now seen corresponding path program 1 times [2019-12-26 20:52:08,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:52:08,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084372906] [2019-12-26 20:52:08,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:52:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:52:09,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:52:09,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084372906] [2019-12-26 20:52:09,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:52:09,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:52:09,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068803269] [2019-12-26 20:52:09,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:52:09,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:52:09,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:52:09,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:52:09,080 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2019-12-26 20:52:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:52:09,133 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2019-12-26 20:52:09,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:52:09,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-26 20:52:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:52:09,168 INFO L225 Difference]: With dead ends: 197 [2019-12-26 20:52:09,169 INFO L226 Difference]: Without dead ends: 167 [2019-12-26 20:52:09,170 INFO L631 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 [2019-12-26 20:52:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-12-26 20:52:09,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-12-26 20:52:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-12-26 20:52:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2019-12-26 20:52:09,234 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2019-12-26 20:52:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:52:09,234 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2019-12-26 20:52:09,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:52:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2019-12-26 20:52:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-26 20:52:09,235 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:52:09,235 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:52:09,236 INFO L410 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:52:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:52:09,236 INFO L82 PathProgramCache]: Analyzing trace with hash -103168699, now seen corresponding path program 1 times [2019-12-26 20:52:09,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:52:09,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563092564] [2019-12-26 20:52:09,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:52:09,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:52:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:52:09,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563092564] [2019-12-26 20:52:09,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:52:09,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:52:09,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147927175] [2019-12-26 20:52:09,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:52:09,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:52:09,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:52:09,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:52:09,323 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2019-12-26 20:52:09,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:52:09,347 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2019-12-26 20:52:09,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:52:09,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-26 20:52:09,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:52:09,350 INFO L225 Difference]: With dead ends: 182 [2019-12-26 20:52:09,350 INFO L226 Difference]: Without dead ends: 157 [2019-12-26 20:52:09,351 INFO L631 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 [2019-12-26 20:52:09,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-12-26 20:52:09,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2019-12-26 20:52:09,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-12-26 20:52:09,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2019-12-26 20:52:09,379 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2019-12-26 20:52:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:52:09,380 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2019-12-26 20:52:09,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:52:09,387 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2019-12-26 20:52:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 20:52:09,388 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:52:09,388 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:52:09,388 INFO L410 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:52:09,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:52:09,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1359574638, now seen corresponding path program 1 times [2019-12-26 20:52:09,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:52:09,389 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096871515] [2019-12-26 20:52:09,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:52:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:52:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:52:09,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096871515] [2019-12-26 20:52:09,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:52:09,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:52:09,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379341880] [2019-12-26 20:52:09,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:52:09,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:52:09,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:52:09,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:52:09,457 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2019-12-26 20:52:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:52:09,509 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2019-12-26 20:52:09,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:52:09,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 20:52:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:52:09,511 INFO L225 Difference]: With dead ends: 138 [2019-12-26 20:52:09,511 INFO L226 Difference]: Without dead ends: 84 [2019-12-26 20:52:09,512 INFO L631 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 [2019-12-26 20:52:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-26 20:52:09,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-12-26 20:52:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-12-26 20:52:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2019-12-26 20:52:09,523 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2019-12-26 20:52:09,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:52:09,523 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2019-12-26 20:52:09,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:52:09,524 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2019-12-26 20:52:09,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:52:09,524 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:52:09,525 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:52:09,525 INFO L410 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:52:09,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:52:09,525 INFO L82 PathProgramCache]: Analyzing trace with hash -600337334, now seen corresponding path program 1 times [2019-12-26 20:52:09,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:52:09,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655178965] [2019-12-26 20:52:09,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:52:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:52:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:52:09,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655178965] [2019-12-26 20:52:09,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:52:09,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:52:09,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734053408] [2019-12-26 20:52:09,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:52:09,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:52:09,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:52:09,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:52:09,585 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 3 states. [2019-12-26 20:52:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:52:09,593 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2019-12-26 20:52:09,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:52:09,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-12-26 20:52:09,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:52:09,594 INFO L225 Difference]: With dead ends: 84 [2019-12-26 20:52:09,595 INFO L226 Difference]: Without dead ends: 72 [2019-12-26 20:52:09,595 INFO L631 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 [2019-12-26 20:52:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2019-12-26 20:52:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-12-26 20:52:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-26 20:52:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2019-12-26 20:52:09,601 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 12 [2019-12-26 20:52:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:52:09,601 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2019-12-26 20:52:09,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:52:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2019-12-26 20:52:09,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:52:09,602 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:52:09,602 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:52:09,602 INFO L410 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:52:09,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:52:09,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1468459522, now seen corresponding path program 1 times [2019-12-26 20:52:09,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:52:09,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587464593] [2019-12-26 20:52:09,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:52:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:52:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:52:09,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587464593] [2019-12-26 20:52:09,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:52:09,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:52:09,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380296410] [2019-12-26 20:52:09,647 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:52:09,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:52:09,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:52:09,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:52:09,647 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 4 states. [2019-12-26 20:52:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:52:09,666 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2019-12-26 20:52:09,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:52:09,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-26 20:52:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:52:09,667 INFO L225 Difference]: With dead ends: 22 [2019-12-26 20:52:09,667 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 20:52:09,668 INFO L631 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 [2019-12-26 20:52:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 20:52:09,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 20:52:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 20:52:09,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 20:52:09,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-12-26 20:52:09,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:52:09,669 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 20:52:09,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:52:09,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 20:52:09,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 20:52:09,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 08:52:09 BasicIcfg [2019-12-26 20:52:09,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 20:52:09,674 INFO L168 Benchmark]: Toolchain (without parser) took 4952.30 ms. Allocated memory was 147.8 MB in the beginning and 243.8 MB in the end (delta: 95.9 MB). Free memory was 104.5 MB in the beginning and 114.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,675 INFO L168 Benchmark]: CDTParser took 1.13 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.91 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 104.3 MB in the beginning and 164.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 205.0 MB. Free memory was 164.1 MB in the beginning and 161.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,678 INFO L168 Benchmark]: Boogie Preprocessor took 27.19 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 160.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,679 INFO L168 Benchmark]: RCFGBuilder took 480.01 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 136.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,680 INFO L168 Benchmark]: TraceAbstraction took 3717.27 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 135.8 MB in the beginning and 114.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2019-12-26 20:52:09,688 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.91 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 104.3 MB in the beginning and 164.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 205.0 MB. Free memory was 164.1 MB in the beginning and 161.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.19 ms. Allocated memory is still 205.0 MB. Free memory was 161.5 MB in the beginning and 160.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 480.01 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 136.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3717.27 ms. Allocated memory was 205.0 MB in the beginning and 243.8 MB in the end (delta: 38.8 MB). Free memory was 135.8 MB in the beginning and 114.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.7s, 80 ProgramPointsBefore, 33 ProgramPointsAfterwards, 79 TransitionsBefore, 32 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 446 VarBasedMoverChecksPositive, 67 VarBasedMoverChecksNegative, 57 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 2175 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 688]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 696]: 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, 74 locations, 2 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 69 SDslu, 59 SDs, 0 SdLazy, 20 SolverSat, 9 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=197occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 723 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...