/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 12:04:45,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 12:04:45,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 12:04:45,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 12:04:45,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 12:04:45,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 12:04:45,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 12:04:45,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 12:04:45,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 12:04:45,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 12:04:45,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 12:04:45,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 12:04:45,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 12:04:45,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 12:04:45,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 12:04:45,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 12:04:45,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 12:04:45,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 12:04:45,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 12:04:45,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 12:04:45,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 12:04:45,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 12:04:45,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 12:04:45,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 12:04:45,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 12:04:45,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 12:04:45,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 12:04:45,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 12:04:45,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 12:04:45,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 12:04:45,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 12:04:45,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 12:04:45,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 12:04:45,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 12:04:45,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 12:04:45,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 12:04:45,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 12:04:45,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 12:04:45,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 12:04:45,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 12:04:45,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 12:04:45,911 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-Separate.epf [2021-06-05 12:04:45,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 12:04:45,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 12:04:45,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 12:04:45,925 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 12:04:45,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 12:04:45,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 12:04:45,926 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 12:04:45,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 12:04:45,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 12:04:45,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:04:45,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 12:04:45,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 12:04:45,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 12:04:45,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 12:04:45,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 12:04:45,929 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 12:04:45,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 12:04:46,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 12:04:46,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 12:04:46,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 12:04:46,174 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 12:04:46,174 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 12:04:46,175 INFO L432 ainManager$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 [2021-06-05 12:04:46,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0423d2f/6c7d4b9243e34880b919a851731288b8/FLAG177b15e3d [2021-06-05 12:04:46,608 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 12:04:46,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-06-05 12:04:46,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0423d2f/6c7d4b9243e34880b919a851731288b8/FLAG177b15e3d [2021-06-05 12:04:47,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d0423d2f/6c7d4b9243e34880b919a851731288b8 [2021-06-05 12:04:47,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 12:04:47,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 12:04:47,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 12:04:47,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 12:04:47,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 12:04:47,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c462cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47, skipping insertion in model container [2021-06-05 12:04:47,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 12:04:47,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 12:04:47,306 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-06-05 12:04:47,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:04:47,331 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 12:04:47,364 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-06-05 12:04:47,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:04:47,430 INFO L208 MainTranslator]: Completed translation [2021-06-05 12:04:47,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47 WrapperNode [2021-06-05 12:04:47,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 12:04:47,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 12:04:47,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 12:04:47,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 12:04:47,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 12:04:47,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 12:04:47,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 12:04:47,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 12:04:47,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (1/1) ... [2021-06-05 12:04:47,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 12:04:47,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 12:04:47,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 12:04:47,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 12:04:47,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (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 [2021-06-05 12:04:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 12:04:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 12:04:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 12:04:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 12:04:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-05 12:04:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-05 12:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 12:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 12:04:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 12:04:47,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 12:04:47,581 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 12:04:47,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 12:04:47,847 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-06-05 12:04:47,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:04:47 BoogieIcfgContainer [2021-06-05 12:04:47,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 12:04:47,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 12:04:47,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 12:04:47,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 12:04:47,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:04:47" (1/3) ... [2021-06-05 12:04:47,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc42238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:04:47, skipping insertion in model container [2021-06-05 12:04:47,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:04:47" (2/3) ... [2021-06-05 12:04:47,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc42238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:04:47, skipping insertion in model container [2021-06-05 12:04:47,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:04:47" (3/3) ... [2021-06-05 12:04:47,853 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-06-05 12:04:47,857 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 12:04:47,857 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 12:04:47,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 12:04:47,857 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 12:04:47,884 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,885 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,886 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,887 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,888 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,889 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,890 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,891 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,892 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,893 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,897 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,898 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,899 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 12:04:47,910 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 12:04:47,924 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-06-05 12:04:47,936 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 12:04:47,936 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 12:04:47,936 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 12:04:47,936 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 12:04:47,936 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 12:04:47,936 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 12:04:47,936 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 12:04:47,936 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 12:04:47,943 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 102 transitions, 212 flow [2021-06-05 12:04:47,980 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-06-05 12:04:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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) [2021-06-05 12:04:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 12:04:47,996 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:04:47,997 INFO L521 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] [2021-06-05 12:04:47,997 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 12:04:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:04:48,006 INFO L82 PathProgramCache]: Analyzing trace with hash -206557193, now seen corresponding path program 1 times [2021-06-05 12:04:48,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:04:48,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712672527] [2021-06-05 12:04:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:04:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:04:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:04:48,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:04:48,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712672527] [2021-06-05 12:04:48,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712672527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:04:48,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:04:48,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 12:04:48,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916779233] [2021-06-05 12:04:48,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 12:04:48,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:04:48,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 12:04:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-06-05 12:04:48,319 INFO L87 Difference]: Start difference. First operand has 606 states, 604 states have (on average 2.1887417218543046) internal successors, (1322), 605 states have internal predecessors, (1322), 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 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2021-06-05 12:04:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:04:48,658 INFO L93 Difference]: Finished difference Result 747 states and 1364 transitions. [2021-06-05 12:04:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 12:04:48,659 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 49 [2021-06-05 12:04:48,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:04:48,666 INFO L225 Difference]: With dead ends: 747 [2021-06-05 12:04:48,666 INFO L226 Difference]: Without dead ends: 341 [2021-06-05 12:04:48,667 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 216.7ms TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2021-06-05 12:04:48,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-06-05 12:04:48,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-06-05 12:04:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.776470588235294) internal successors, (604), 340 states have internal predecessors, (604), 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) [2021-06-05 12:04:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 604 transitions. [2021-06-05 12:04:48,702 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 604 transitions. Word has length 49 [2021-06-05 12:04:48,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:04:48,702 INFO L482 AbstractCegarLoop]: Abstraction has 341 states and 604 transitions. [2021-06-05 12:04:48,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2021-06-05 12:04:48,702 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 604 transitions. [2021-06-05 12:04:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 12:04:48,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:04:48,704 INFO L521 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] [2021-06-05 12:04:48,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 12:04:48,705 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 12:04:48,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:04:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash -560532625, now seen corresponding path program 1 times [2021-06-05 12:04:48,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:04:48,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438819749] [2021-06-05 12:04:48,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:04:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:04:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:04:48,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:04:48,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438819749] [2021-06-05 12:04:48,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438819749] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:04:48,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:04:48,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 12:04:48,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392173454] [2021-06-05 12:04:48,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 12:04:48,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:04:48,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 12:04:48,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-05 12:04:48,785 INFO L87 Difference]: Start difference. First operand 341 states and 604 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-06-05 12:04:48,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:04:48,850 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2021-06-05 12:04:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-05 12:04:48,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-06-05 12:04:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:04:48,853 INFO L225 Difference]: With dead ends: 163 [2021-06-05 12:04:48,853 INFO L226 Difference]: Without dead ends: 151 [2021-06-05 12:04:48,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-06-05 12:04:48,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-06-05 12:04:48,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-06-05 12:04:48,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4933333333333334) internal successors, (224), 150 states have internal predecessors, (224), 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) [2021-06-05 12:04:48,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 224 transitions. [2021-06-05 12:04:48,870 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 224 transitions. Word has length 59 [2021-06-05 12:04:48,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:04:48,870 INFO L482 AbstractCegarLoop]: Abstraction has 151 states and 224 transitions. [2021-06-05 12:04:48,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2021-06-05 12:04:48,871 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 224 transitions. [2021-06-05 12:04:48,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-06-05 12:04:48,872 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:04:48,872 INFO L521 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, 1] [2021-06-05 12:04:48,872 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 12:04:48,872 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 12:04:48,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:04:48,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1866449416, now seen corresponding path program 1 times [2021-06-05 12:04:48,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:04:48,873 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324953510] [2021-06-05 12:04:48,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:04:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 12:04:49,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 12:04:49,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 12:04:49,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324953510] [2021-06-05 12:04:49,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324953510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 12:04:49,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 12:04:49,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-06-05 12:04:49,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269258707] [2021-06-05 12:04:49,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-05 12:04:49,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 12:04:49,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-05 12:04:49,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-06-05 12:04:49,120 INFO L87 Difference]: Start difference. First operand 151 states and 224 transitions. Second operand has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-06-05 12:04:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 12:04:49,596 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2021-06-05 12:04:49,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 12:04:49,596 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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 74 [2021-06-05 12:04:49,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 12:04:49,596 INFO L225 Difference]: With dead ends: 145 [2021-06-05 12:04:49,596 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 12:04:49,597 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 515.5ms TimeCoverageRelationStatistics Valid=229, Invalid=961, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 12:04:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 12:04:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 12:04:49,597 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) [2021-06-05 12:04:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 12:04:49,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-06-05 12:04:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 12:04:49,597 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 12:04:49,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.352941176470588) internal successors, (74), 17 states have internal predecessors, (74), 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) [2021-06-05 12:04:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 12:04:49,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 12:04:49,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 12:04:49,599 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 12:04:49,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:04:49 BasicIcfg [2021-06-05 12:04:49,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 12:04:49,601 INFO L168 Benchmark]: Toolchain (without parser) took 2579.28 ms. Allocated memory is still 341.8 MB. Free memory was 304.4 MB in the beginning and 190.7 MB in the end (delta: 113.7 MB). Peak memory consumption was 114.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:04:49,601 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:04:49,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.04 ms. Allocated memory is still 341.8 MB. Free memory was 304.2 MB in the beginning and 304.8 MB in the end (delta: -579.6 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-05 12:04:49,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.92 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 302.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:04:49,602 INFO L168 Benchmark]: Boogie Preprocessor took 32.82 ms. Allocated memory is still 341.8 MB. Free memory was 302.6 MB in the beginning and 301.6 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:04:49,602 INFO L168 Benchmark]: RCFGBuilder took 332.81 ms. Allocated memory is still 341.8 MB. Free memory was 301.6 MB in the beginning and 272.5 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-06-05 12:04:49,603 INFO L168 Benchmark]: TraceAbstraction took 1751.17 ms. Allocated memory is still 341.8 MB. Free memory was 272.3 MB in the beginning and 190.7 MB in the end (delta: 81.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:04:49,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 341.8 MB. Free memory was 322.3 MB in the beginning and 322.2 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 410.04 ms. Allocated memory is still 341.8 MB. Free memory was 304.2 MB in the beginning and 304.8 MB in the end (delta: -579.6 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.92 ms. Allocated memory is still 341.8 MB. Free memory was 304.8 MB in the beginning and 302.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.82 ms. Allocated memory is still 341.8 MB. Free memory was 302.6 MB in the beginning and 301.6 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 332.81 ms. Allocated memory is still 341.8 MB. Free memory was 301.6 MB in the beginning and 272.5 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1751.17 ms. Allocated memory is still 341.8 MB. Free memory was 272.3 MB in the beginning and 190.7 MB in the end (delta: 81.5 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 123 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1663.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 18.8ms, AutomataDifference: 915.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 44.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 296 SDtfs, 715 SDslu, 1355 SDs, 0 SdLazy, 351 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 187.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 765.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.8ms SsaConstructionTime, 91.5ms SatisfiabilityAnalysisTime, 426.8ms InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...