/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/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 07:56:22,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 07:56:22,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 07:56:22,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 07:56:22,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 07:56:22,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 07:56:22,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 07:56:22,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 07:56:22,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 07:56:22,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 07:56:22,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 07:56:22,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 07:56:22,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 07:56:22,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 07:56:22,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 07:56:22,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 07:56:22,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 07:56:22,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 07:56:22,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 07:56:22,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 07:56:22,166 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 07:56:22,207 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 07:56:22,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 07:56:22,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 07:56:22,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 07:56:22,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 07:56:22,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 07:56:22,211 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 07:56:22,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 07:56:22,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 07:56:22,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 07:56:22,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 07:56:22,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 07:56:22,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 07:56:22,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 07:56:22,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 07:56:22,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 07:56:22,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 07:56:22,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 07:56:22,214 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 07:56:22,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 07:56:22,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 07:56:22,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 07:56:22,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 07:56:22,552 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 07:56:22,553 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 07:56:22,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2021-06-05 07:56:22,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc73c13a/738b0fd6ae4f46cf93ce5d291394a75c/FLAGf03a5c502 [2021-06-05 07:56:23,148 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 07:56:23,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2021-06-05 07:56:23,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc73c13a/738b0fd6ae4f46cf93ce5d291394a75c/FLAGf03a5c502 [2021-06-05 07:56:23,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bc73c13a/738b0fd6ae4f46cf93ce5d291394a75c [2021-06-05 07:56:23,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 07:56:23,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 07:56:23,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 07:56:23,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 07:56:23,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 07:56:23,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4ee49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23, skipping insertion in model container [2021-06-05 07:56:23,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 07:56:23,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 07:56:23,805 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2021-06-05 07:56:23,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 07:56:23,821 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 07:56:23,852 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i[30826,30839] [2021-06-05 07:56:23,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 07:56:23,925 INFO L208 MainTranslator]: Completed translation [2021-06-05 07:56:23,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23 WrapperNode [2021-06-05 07:56:23,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 07:56:23,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 07:56:23,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 07:56:23,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 07:56:23,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 07:56:23,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 07:56:23,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 07:56:23,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 07:56:23,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:23,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:24,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:24,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:24,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (1/1) ... [2021-06-05 07:56:24,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 07:56:24,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 07:56:24,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 07:56:24,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 07:56:24,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (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 07:56:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 07:56:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 07:56:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 07:56:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 07:56:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 07:56:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 07:56:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 07:56:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 07:56:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 07:56:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 07:56:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 07:56:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 07:56:24,090 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 07:56:24,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 07:56:24,471 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 07:56:24,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:56:24 BoogieIcfgContainer [2021-06-05 07:56:24,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 07:56:24,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 07:56:24,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 07:56:24,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 07:56:24,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:56:23" (1/3) ... [2021-06-05 07:56:24,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fed61b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:56:24, skipping insertion in model container [2021-06-05 07:56:24,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:56:23" (2/3) ... [2021-06-05 07:56:24,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fed61b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:56:24, skipping insertion in model container [2021-06-05 07:56:24,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:56:24" (3/3) ... [2021-06-05 07:56:24,479 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2021-06-05 07:56:24,483 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 07:56:24,484 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 07:56:24,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 07:56:24,484 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 07:56:24,520 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,521 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,533 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,534 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,534 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,535 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,536 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,537 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,539 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,539 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,539 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,539 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,540 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,540 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,546 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,546 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,547 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,547 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,548 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 07:56:24,555 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 07:56:24,573 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 07:56:24,589 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 07:56:24,589 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 07:56:24,589 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 07:56:24,589 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 07:56:24,589 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 07:56:24,590 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 07:56:24,590 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 07:56:24,590 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 07:56:24,599 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 200 flow [2021-06-05 07:56:24,646 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 994 states, 992 states have (on average 2.4153225806451615) internal successors, (2396), 993 states have internal predecessors, (2396), 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 07:56:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 992 states have (on average 2.4153225806451615) internal successors, (2396), 993 states have internal predecessors, (2396), 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 07:56:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 07:56:24,683 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 07:56:24,684 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, 1] [2021-06-05 07:56:24,684 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 07:56:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 07:56:24,692 INFO L82 PathProgramCache]: Analyzing trace with hash 151184071, now seen corresponding path program 1 times [2021-06-05 07:56:24,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 07:56:24,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791381347] [2021-06-05 07:56:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 07:56:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 07:56:25,110 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 07:56:25,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 07:56:25,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791381347] [2021-06-05 07:56:25,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791381347] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 07:56:25,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 07:56:25,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 07:56:25,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401319528] [2021-06-05 07:56:25,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 07:56:25,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 07:56:25,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 07:56:25,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 07:56:25,141 INFO L87 Difference]: Start difference. First operand has 994 states, 992 states have (on average 2.4153225806451615) internal successors, (2396), 993 states have internal predecessors, (2396), 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 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 07:56:25,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 07:56:25,313 INFO L93 Difference]: Finished difference Result 1868 states and 4508 transitions. [2021-06-05 07:56:25,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 07:56:25,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2021-06-05 07:56:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 07:56:25,337 INFO L225 Difference]: With dead ends: 1868 [2021-06-05 07:56:25,337 INFO L226 Difference]: Without dead ends: 1179 [2021-06-05 07:56:25,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 85.0ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 07:56:25,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2021-06-05 07:56:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 731. [2021-06-05 07:56:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 2.3917808219178083) internal successors, (1746), 730 states have internal predecessors, (1746), 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 07:56:25,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1746 transitions. [2021-06-05 07:56:25,425 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1746 transitions. Word has length 75 [2021-06-05 07:56:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 07:56:25,426 INFO L482 AbstractCegarLoop]: Abstraction has 731 states and 1746 transitions. [2021-06-05 07:56:25,426 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 07:56:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1746 transitions. [2021-06-05 07:56:25,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 07:56:25,429 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 07:56:25,429 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, 1] [2021-06-05 07:56:25,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 07:56:25,430 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 07:56:25,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 07:56:25,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1332325291, now seen corresponding path program 2 times [2021-06-05 07:56:25,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 07:56:25,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079540545] [2021-06-05 07:56:25,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 07:56:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 07:56:25,484 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 07:56:25,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 07:56:25,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079540545] [2021-06-05 07:56:25,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079540545] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 07:56:25,485 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 07:56:25,485 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 07:56:25,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319911416] [2021-06-05 07:56:25,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 07:56:25,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 07:56:25,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 07:56:25,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 07:56:25,488 INFO L87 Difference]: Start difference. First operand 731 states and 1746 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 07:56:25,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 07:56:25,517 INFO L93 Difference]: Finished difference Result 528 states and 1114 transitions. [2021-06-05 07:56:25,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 07:56:25,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-06-05 07:56:25,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 07:56:25,520 INFO L225 Difference]: With dead ends: 528 [2021-06-05 07:56:25,521 INFO L226 Difference]: Without dead ends: 486 [2021-06-05 07:56:25,521 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 07:56:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-06-05 07:56:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2021-06-05 07:56:25,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 2.111340206185567) internal successors, (1024), 485 states have internal predecessors, (1024), 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 07:56:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 1024 transitions. [2021-06-05 07:56:25,536 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 1024 transitions. Word has length 75 [2021-06-05 07:56:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 07:56:25,536 INFO L482 AbstractCegarLoop]: Abstraction has 486 states and 1024 transitions. [2021-06-05 07:56:25,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 07:56:25,536 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 1024 transitions. [2021-06-05 07:56:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 07:56:25,538 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 07:56:25,538 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, 1] [2021-06-05 07:56:25,539 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 07:56:25,539 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 07:56:25,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 07:56:25,539 INFO L82 PathProgramCache]: Analyzing trace with hash 422460943, now seen corresponding path program 3 times [2021-06-05 07:56:25,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 07:56:25,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612157582] [2021-06-05 07:56:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 07:56:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 07:56:25,723 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 07:56:25,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 07:56:25,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612157582] [2021-06-05 07:56:25,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612157582] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 07:56:25,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 07:56:25,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 07:56:25,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156237059] [2021-06-05 07:56:25,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 07:56:25,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 07:56:25,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 07:56:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 07:56:25,726 INFO L87 Difference]: Start difference. First operand 486 states and 1024 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 07:56:25,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 07:56:25,797 INFO L93 Difference]: Finished difference Result 484 states and 1022 transitions. [2021-06-05 07:56:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 07:56:25,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 75 [2021-06-05 07:56:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 07:56:25,798 INFO L225 Difference]: With dead ends: 484 [2021-06-05 07:56:25,798 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 07:56:25,798 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 113.2ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-06-05 07:56:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 07:56:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 07:56:25,799 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 07:56:25,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 07:56:25,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2021-06-05 07:56:25,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 07:56:25,800 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 07:56:25,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 07:56:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 07:56:25,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 07:56:25,800 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 07:56:25,801 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 07:56:25,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:56:25 BasicIcfg [2021-06-05 07:56:25,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 07:56:25,805 INFO L168 Benchmark]: Toolchain (without parser) took 2376.07 ms. Allocated memory is still 348.1 MB. Free memory was 310.1 MB in the beginning and 167.4 MB in the end (delta: 142.7 MB). Peak memory consumption was 141.5 MB. Max. memory is 16.0 GB. [2021-06-05 07:56:25,805 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory is still 328.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 07:56:25,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.38 ms. Allocated memory is still 348.1 MB. Free memory was 310.0 MB in the beginning and 311.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-06-05 07:56:25,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.72 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 07:56:25,807 INFO L168 Benchmark]: Boogie Preprocessor took 30.00 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 307.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 07:56:25,807 INFO L168 Benchmark]: RCFGBuilder took 456.38 ms. Allocated memory is still 348.1 MB. Free memory was 307.9 MB in the beginning and 281.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 07:56:25,808 INFO L168 Benchmark]: TraceAbstraction took 1329.54 ms. Allocated memory is still 348.1 MB. Free memory was 281.7 MB in the beginning and 167.4 MB in the end (delta: 114.3 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.0 GB. [2021-06-05 07:56:25,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 348.1 MB. Free memory is still 328.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 494.38 ms. Allocated memory is still 348.1 MB. Free memory was 310.0 MB in the beginning and 311.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.72 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.00 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 307.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 456.38 ms. Allocated memory is still 348.1 MB. Free memory was 307.9 MB in the beginning and 281.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1329.54 ms. Allocated memory is still 348.1 MB. Free memory was 281.7 MB in the beginning and 167.4 MB in the end (delta: 114.3 MB). Peak memory consumption was 113.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 727]: 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 5 procedures, 117 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1214.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 41.5ms, AutomataDifference: 321.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 56.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 348 SDtfs, 167 SDslu, 851 SDs, 0 SdLazy, 77 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 201.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=994occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 448 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.5ms SsaConstructionTime, 129.6ms SatisfiabilityAnalysisTime, 412.3ms InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 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...