/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 13:29:40,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 13:29:40,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 13:29:40,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 13:29:40,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 13:29:40,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 13:29:40,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 13:29:40,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 13:29:40,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 13:29:40,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 13:29:40,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 13:29:40,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 13:29:40,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 13:29:40,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 13:29:40,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 13:29:40,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 13:29:40,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 13:29:40,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 13:29:40,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 13:29:40,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 13:29:40,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 13:29:40,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 13:29:40,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 13:29:40,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 13:29:40,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-12 13:29:40,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-12 13:29:40,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-12 13:29:40,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-12 13:29:40,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-12 13:29:40,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-12 13:29:40,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 13:29:40,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 13:29:40,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 13:29:40,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 13:29:40,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 13:29:40,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 13:29:40,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 13:29:40,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 13:29:40,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 13:29:40,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 13:29:40,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 13:29:40,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-New_States.epf [2020-11-12 13:29:40,389 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 13:29:40,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 13:29:40,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 13:29:40,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 13:29:40,392 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 13:29:40,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 13:29:40,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 13:29:40,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 13:29:40,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 13:29:40,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 13:29:40,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 13:29:40,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 13:29:40,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 13:29:40,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 13:29:40,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 13:29:40,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 13:29:40,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 13:29:40,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 13:29:40,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 13:29:40,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 13:29:40,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 13:29:40,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 13:29:40,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 13:29:40,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 13:29:40,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 13:29:40,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 13:29:40,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 13:29:40,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-12 13:29:40,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 13:29:40,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-12 13:29:40,397 INFO L138 SettingsManager]: * Sleep set reduction in concurrent analysis=NEW_STATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 13:29:40,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 13:29:40,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 13:29:40,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 13:29:40,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 13:29:40,797 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 13:29:40,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-12 13:29:40,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5e9694e/4c8cdd8814a04e8bbb5559116c70208c/FLAGd97da693b [2020-11-12 13:29:41,667 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 13:29:41,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-12 13:29:41,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5e9694e/4c8cdd8814a04e8bbb5559116c70208c/FLAGd97da693b [2020-11-12 13:29:41,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5e9694e/4c8cdd8814a04e8bbb5559116c70208c [2020-11-12 13:29:41,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 13:29:41,891 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 13:29:41,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 13:29:41,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 13:29:41,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 13:29:41,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:29:41" (1/1) ... [2020-11-12 13:29:41,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614a173e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:41, skipping insertion in model container [2020-11-12 13:29:41,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:29:41" (1/1) ... [2020-11-12 13:29:41,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 13:29:41,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 13:29:42,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 13:29:42,505 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 13:29:42,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 13:29:42,736 INFO L208 MainTranslator]: Completed translation [2020-11-12 13:29:42,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42 WrapperNode [2020-11-12 13:29:42,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 13:29:42,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 13:29:42,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 13:29:42,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 13:29:42,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 13:29:42,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 13:29:42,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 13:29:42,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 13:29:42,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (1/1) ... [2020-11-12 13:29:42,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 13:29:42,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 13:29:42,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 13:29:42,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 13:29:42,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (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 [2020-11-12 13:29:43,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-12 13:29:43,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 13:29:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-12 13:29:43,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 13:29:43,008 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-12 13:29:43,008 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-12 13:29:43,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 13:29:43,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 13:29:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 13:29:43,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 13:29:43,015 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 13:29:43,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 13:29:43,545 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-12 13:29:43,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:29:43 BoogieIcfgContainer [2020-11-12 13:29:43,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 13:29:43,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 13:29:43,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 13:29:43,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 13:29:43,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:29:41" (1/3) ... [2020-11-12 13:29:43,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db74ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:29:43, skipping insertion in model container [2020-11-12 13:29:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:29:42" (2/3) ... [2020-11-12 13:29:43,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db74ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:29:43, skipping insertion in model container [2020-11-12 13:29:43,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:29:43" (3/3) ... [2020-11-12 13:29:43,557 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-11-12 13:29:43,574 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 13:29:43,574 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 13:29:43,578 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 13:29:43,579 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 13:29:43,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,613 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,614 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,614 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,614 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,615 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,615 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,615 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,615 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,615 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,616 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,616 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,616 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,620 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,620 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,620 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,620 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,620 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,622 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,622 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,622 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,622 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,622 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,623 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,624 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,624 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,624 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,626 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,627 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,630 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,630 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,631 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,631 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,631 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,631 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,631 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,632 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,632 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,632 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,632 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,632 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,633 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 13:29:43,643 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-12 13:29:43,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-12 13:29:43,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 13:29:43,681 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 13:29:43,682 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 13:29:43,682 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 13:29:43,682 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 13:29:43,682 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 13:29:43,682 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 13:29:43,682 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 13:29:43,696 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 103 transitions, 214 flow [2020-11-12 13:29:43,749 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 660 states, 658 states have (on average 2.234042553191489) internal successors, (1470), 659 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:45,523 WARN L455 BasicCegarLoop]: Sleep Set Reduction Time: 1770ms [2020-11-12 13:29:45,525 WARN L456 BasicCegarLoop]: Sleep set: input automaton has 660 states, 658 states have (on average 2.234042553191489) internal successors, (1470), 659 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:45,736 WARN L457 BasicCegarLoop]: Sleep set: output automaton has 60885 states, 58023 states have (on average 1.325543319028661) internal successors, (76912), 60884 states have internal predecessors, (76912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 60885 states, 58023 states have (on average 1.325543319028661) internal successors, (76912), 60884 states have internal predecessors, (76912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-12 13:29:45,847 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:29:45,848 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:29:45,849 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:29:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:29:45,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1950299108, now seen corresponding path program 1 times [2020-11-12 13:29:45,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:29:45,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764699147] [2020-11-12 13:29:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:29:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:29:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:29:46,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764699147] [2020-11-12 13:29:46,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 13:29:46,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-12 13:29:46,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11397174] [2020-11-12 13:29:46,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-12 13:29:46,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:29:46,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-12 13:29:46,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-12 13:29:46,545 INFO L87 Difference]: Start difference. First operand has 60885 states, 58023 states have (on average 1.325543319028661) internal successors, (76912), 60884 states have internal predecessors, (76912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:29:47,145 INFO L93 Difference]: Finished difference Result 1355 states and 1469 transitions. [2020-11-12 13:29:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-12 13:29:47,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2020-11-12 13:29:47,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:29:47,176 INFO L225 Difference]: With dead ends: 1355 [2020-11-12 13:29:47,176 INFO L226 Difference]: Without dead ends: 396 [2020-11-12 13:29:47,178 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-11-12 13:29:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-11-12 13:29:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 269. [2020-11-12 13:29:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 257 states have (on average 1.1011673151750974) internal successors, (283), 268 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 283 transitions. [2020-11-12 13:29:47,251 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 283 transitions. Word has length 48 [2020-11-12 13:29:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:29:47,252 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 283 transitions. [2020-11-12 13:29:47,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 283 transitions. [2020-11-12 13:29:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-12 13:29:47,254 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:29:47,254 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:29:47,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 13:29:47,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:29:47,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:29:47,256 INFO L82 PathProgramCache]: Analyzing trace with hash -836780530, now seen corresponding path program 1 times [2020-11-12 13:29:47,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:29:47,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242389390] [2020-11-12 13:29:47,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:29:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:29:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:29:47,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242389390] [2020-11-12 13:29:47,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 13:29:47,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-12 13:29:47,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665723170] [2020-11-12 13:29:47,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-12 13:29:47,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:29:47,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-12 13:29:47,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-12 13:29:47,443 INFO L87 Difference]: Start difference. First operand 269 states and 283 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:29:47,541 INFO L93 Difference]: Finished difference Result 108 states and 107 transitions. [2020-11-12 13:29:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-12 13:29:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2020-11-12 13:29:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:29:47,543 INFO L225 Difference]: With dead ends: 108 [2020-11-12 13:29:47,543 INFO L226 Difference]: Without dead ends: 100 [2020-11-12 13:29:47,544 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-12 13:29:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-12 13:29:47,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-12 13:29:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 99 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 99 transitions. [2020-11-12 13:29:47,552 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 99 transitions. Word has length 58 [2020-11-12 13:29:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:29:47,552 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 99 transitions. [2020-11-12 13:29:47,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:47,553 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 99 transitions. [2020-11-12 13:29:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-12 13:29:47,555 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 13:29:47,555 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 13:29:47,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 13:29:47,555 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 13:29:47,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 13:29:47,556 INFO L82 PathProgramCache]: Analyzing trace with hash 633022147, now seen corresponding path program 1 times [2020-11-12 13:29:47,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 13:29:47,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521106964] [2020-11-12 13:29:47,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 13:29:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 13:29:48,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 13:29:48,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521106964] [2020-11-12 13:29:48,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 13:29:48,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-12 13:29:48,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379859882] [2020-11-12 13:29:48,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-12 13:29:48,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 13:29:48,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-12 13:29:48,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2020-11-12 13:29:48,009 INFO L87 Difference]: Start difference. First operand 100 states and 99 transitions. Second operand has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:48,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 13:29:48,783 INFO L93 Difference]: Finished difference Result 88 states and 87 transitions. [2020-11-12 13:29:48,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-12 13:29:48,784 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2020-11-12 13:29:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 13:29:48,784 INFO L225 Difference]: With dead ends: 88 [2020-11-12 13:29:48,785 INFO L226 Difference]: Without dead ends: 0 [2020-11-12 13:29:48,786 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2020-11-12 13:29:48,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-12 13:29:48,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-12 13:29:48,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-12 13:29:48,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-11-12 13:29:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 13:29:48,787 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-12 13:29:48,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.294117647058823) internal successors, (73), 17 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 13:29:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-12 13:29:48,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-12 13:29:48,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 13:29:48,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 01:29:48 BasicIcfg [2020-11-12 13:29:48,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 13:29:48,795 INFO L168 Benchmark]: Toolchain (without parser) took 6909.61 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 276.7 MB in the beginning and 1.2 GB in the end (delta: -954.6 MB). Peak memory consumption was 181.0 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,796 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 13:29:48,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.42 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 246.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.63 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,799 INFO L168 Benchmark]: Boogie Preprocessor took 72.08 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 285.0 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,799 INFO L168 Benchmark]: RCFGBuilder took 640.71 ms. Allocated memory is still 302.0 MB. Free memory was 285.0 MB in the beginning and 259.5 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,800 INFO L168 Benchmark]: TraceAbstraction took 5243.70 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 258.5 MB in the beginning and 1.2 GB in the end (delta: -972.8 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.0 GB. [2020-11-12 13:29:48,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 841.42 ms. Allocated memory is still 302.0 MB. Free memory was 276.0 MB in the beginning and 246.5 MB in the end (delta: 29.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.63 ms. Allocated memory is still 302.0 MB. Free memory was 246.5 MB in the beginning and 244.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.08 ms. Allocated memory is still 302.0 MB. Free memory was 244.5 MB in the beginning and 285.0 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * RCFGBuilder took 640.71 ms. Allocated memory is still 302.0 MB. Free memory was 285.0 MB in the beginning and 259.5 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5243.70 ms. Allocated memory was 302.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 258.5 MB in the beginning and 1.2 GB in the end (delta: -972.8 MB). Peak memory consumption was 161.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 683]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 273 SDtfs, 556 SDslu, 1204 SDs, 0 SdLazy, 379 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60885occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 127 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 46571 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...