/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 20:00:59,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 20:00:59,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 20:00:59,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 20:00:59,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 20:00:59,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 20:00:59,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 20:00:59,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 20:00:59,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 20:00:59,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 20:00:59,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 20:00:59,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 20:00:59,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 20:00:59,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 20:00:59,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 20:00:59,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 20:00:59,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 20:00:59,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 20:00:59,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 20:00:59,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 20:00:59,615 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.epf [2021-06-05 20:00:59,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 20:00:59,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 20:00:59,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 20:00:59,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 20:00:59,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 20:00:59,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 20:00:59,652 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 20:00:59,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 20:00:59,652 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 20:00:59,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 20:00:59,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 20:00:59,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 20:00:59,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 20:00:59,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 20:00:59,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 20:00:59,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 20:00:59,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 20:00:59,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 20:00:59,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 20:00:59,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 20:00:59,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 20:00:59,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 20:00:59,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 20:00:59,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 20:00:59,656 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 20:00:59,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 20:00:59,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 20:01:00,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 20:01:00,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 20:01:00,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 20:01:00,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 20:01:00,048 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 20:01:00,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-06-05 20:01:00,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d09170b/2f630481d98f4d0a9ed7a6eed44a1a17/FLAGfb0aa4df2 [2021-06-05 20:01:00,907 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 20:01:00,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-06-05 20:01:00,931 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d09170b/2f630481d98f4d0a9ed7a6eed44a1a17/FLAGfb0aa4df2 [2021-06-05 20:01:01,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7d09170b/2f630481d98f4d0a9ed7a6eed44a1a17 [2021-06-05 20:01:01,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 20:01:01,072 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 20:01:01,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:01,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 20:01:01,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 20:01:01,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:01" (1/1) ... [2021-06-05 20:01:01,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343b1980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:01, skipping insertion in model container [2021-06-05 20:01:01,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 08:01:01" (1/1) ... [2021-06-05 20:01:01,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 20:01:01,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 20:01:01,672 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-06-05 20:01:01,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:01,717 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 20:01:01,756 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-06-05 20:01:01,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 20:01:02,095 INFO L208 MainTranslator]: Completed translation [2021-06-05 20:01:02,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02 WrapperNode [2021-06-05 20:01:02,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 20:01:02,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:02,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 20:01:02,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 20:01:02,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 20:01:02,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 20:01:02,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 20:01:02,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 20:01:02,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (1/1) ... [2021-06-05 20:01:02,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 20:01:02,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 20:01:02,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 20:01:02,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 20:01:02,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (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 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 20:01:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-05 20:01:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 20:01:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 20:01:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 20:01:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 20:01:02,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 20:01:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 20:01:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 20:01:02,396 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 20:01:03,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 20:01:03,016 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 20:01:03,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:03 BoogieIcfgContainer [2021-06-05 20:01:03,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 20:01:03,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 20:01:03,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 20:01:03,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 20:01:03,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 08:01:01" (1/3) ... [2021-06-05 20:01:03,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222766df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:03, skipping insertion in model container [2021-06-05 20:01:03,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 08:01:02" (2/3) ... [2021-06-05 20:01:03,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222766df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 08:01:03, skipping insertion in model container [2021-06-05 20:01:03,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 08:01:03" (3/3) ... [2021-06-05 20:01:03,026 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-06-05 20:01:03,031 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 20:01:03,031 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 20:01:03,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-05 20:01:03,032 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 20:01:03,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,058 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,059 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,060 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,061 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,063 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,063 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,063 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,063 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,064 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 20:01:03,071 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 20:01:03,089 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 20:01:03,112 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 20:01:03,112 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 20:01:03,112 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 20:01:03,112 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 20:01:03,112 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 20:01:03,113 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 20:01:03,113 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 20:01:03,113 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 20:01:03,126 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 90 transitions, 188 flow [2021-06-05 20:01:03,148 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 227 states, 219 states have (on average 1.6255707762557077) internal successors, (356), 226 states have internal predecessors, (356), 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 20:01:03,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 219 states have (on average 1.6255707762557077) internal successors, (356), 226 states have internal predecessors, (356), 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 20:01:03,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-06-05 20:01:03,167 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:03,168 INFO L554 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] [2021-06-05 20:01:03,169 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1201753634, now seen corresponding path program 1 times [2021-06-05 20:01:03,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:03,181 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394504088] [2021-06-05 20:01:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:03,520 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 20:01:03,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:03,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394504088] [2021-06-05 20:01:03,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394504088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:03,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:03,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:01:03,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837674328] [2021-06-05 20:01:03,528 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:01:03,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:03,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:01:03,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:03,541 INFO L87 Difference]: Start difference. First operand has 227 states, 219 states have (on average 1.6255707762557077) internal successors, (356), 226 states have internal predecessors, (356), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:01:03,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:03,655 INFO L93 Difference]: Finished difference Result 222 states and 348 transitions. [2021-06-05 20:01:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 20:01:03,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2021-06-05 20:01:03,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:03,670 INFO L225 Difference]: With dead ends: 222 [2021-06-05 20:01:03,670 INFO L226 Difference]: Without dead ends: 173 [2021-06-05 20:01:03,671 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 20:01:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-06-05 20:01:03,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-06-05 20:01:03,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 169 states have (on average 1.5562130177514792) internal successors, (263), 172 states have internal predecessors, (263), 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 20:01:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 263 transitions. [2021-06-05 20:01:03,723 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 263 transitions. Word has length 27 [2021-06-05 20:01:03,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:03,723 INFO L482 AbstractCegarLoop]: Abstraction has 173 states and 263 transitions. [2021-06-05 20:01:03,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 20:01:03,724 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 263 transitions. [2021-06-05 20:01:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 20:01:03,725 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:03,725 INFO L554 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] [2021-06-05 20:01:03,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 20:01:03,725 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:03,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:03,726 INFO L82 PathProgramCache]: Analyzing trace with hash 57513541, now seen corresponding path program 1 times [2021-06-05 20:01:03,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:03,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675985657] [2021-06-05 20:01:03,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:03,865 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 20:01:03,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:03,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675985657] [2021-06-05 20:01:03,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675985657] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:03,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:03,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 20:01:03,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286279964] [2021-06-05 20:01:03,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 20:01:03,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:03,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 20:01:03,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:03,871 INFO L87 Difference]: Start difference. First operand 173 states and 263 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 20:01:03,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:03,974 INFO L93 Difference]: Finished difference Result 171 states and 261 transitions. [2021-06-05 20:01:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 20:01:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-06-05 20:01:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:03,980 INFO L225 Difference]: With dead ends: 171 [2021-06-05 20:01:03,985 INFO L226 Difference]: Without dead ends: 171 [2021-06-05 20:01:03,985 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 58.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-06-05 20:01:03,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-06-05 20:01:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2021-06-05 20:01:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 168 states have (on average 1.5535714285714286) internal successors, (261), 170 states have internal predecessors, (261), 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 20:01:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 261 transitions. [2021-06-05 20:01:04,001 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 261 transitions. Word has length 35 [2021-06-05 20:01:04,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:04,002 INFO L482 AbstractCegarLoop]: Abstraction has 171 states and 261 transitions. [2021-06-05 20:01:04,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 20:01:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 261 transitions. [2021-06-05 20:01:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-06-05 20:01:04,003 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:04,003 INFO L554 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] [2021-06-05 20:01:04,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 20:01:04,004 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:04,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:04,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1699842851, now seen corresponding path program 1 times [2021-06-05 20:01:04,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:04,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551337049] [2021-06-05 20:01:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:04,171 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 20:01:04,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:04,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551337049] [2021-06-05 20:01:04,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551337049] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:04,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:04,172 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-05 20:01:04,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190147537] [2021-06-05 20:01:04,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-05 20:01:04,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:04,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-05 20:01:04,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-05 20:01:04,174 INFO L87 Difference]: Start difference. First operand 171 states and 261 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 20:01:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:04,207 INFO L93 Difference]: Finished difference Result 165 states and 255 transitions. [2021-06-05 20:01:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-05 20:01:04,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2021-06-05 20:01:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:04,209 INFO L225 Difference]: With dead ends: 165 [2021-06-05 20:01:04,209 INFO L226 Difference]: Without dead ends: 155 [2021-06-05 20:01:04,209 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-05 20:01:04,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-06-05 20:01:04,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-06-05 20:01:04,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.6013071895424837) internal successors, (245), 154 states have internal predecessors, (245), 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 20:01:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 245 transitions. [2021-06-05 20:01:04,219 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 245 transitions. Word has length 43 [2021-06-05 20:01:04,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:04,219 INFO L482 AbstractCegarLoop]: Abstraction has 155 states and 245 transitions. [2021-06-05 20:01:04,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 20:01:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 245 transitions. [2021-06-05 20:01:04,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-06-05 20:01:04,224 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:04,224 INFO L554 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] [2021-06-05 20:01:04,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 20:01:04,225 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:04,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1707895459, now seen corresponding path program 1 times [2021-06-05 20:01:04,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:04,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038445946] [2021-06-05 20:01:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 20:01:04,295 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 20:01:04,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 20:01:04,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038445946] [2021-06-05 20:01:04,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038445946] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 20:01:04,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 20:01:04,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 20:01:04,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143383543] [2021-06-05 20:01:04,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 20:01:04,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 20:01:04,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 20:01:04,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:01:04,299 INFO L87 Difference]: Start difference. First operand 155 states and 245 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 20:01:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 20:01:04,317 INFO L93 Difference]: Finished difference Result 167 states and 259 transitions. [2021-06-05 20:01:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 20:01:04,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-06-05 20:01:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 20:01:04,319 INFO L225 Difference]: With dead ends: 167 [2021-06-05 20:01:04,319 INFO L226 Difference]: Without dead ends: 167 [2021-06-05 20:01:04,320 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 20:01:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-06-05 20:01:04,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 155. [2021-06-05 20:01:04,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.5947712418300655) internal successors, (244), 154 states have internal predecessors, (244), 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 20:01:04,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 244 transitions. [2021-06-05 20:01:04,338 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 244 transitions. Word has length 44 [2021-06-05 20:01:04,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 20:01:04,338 INFO L482 AbstractCegarLoop]: Abstraction has 155 states and 244 transitions. [2021-06-05 20:01:04,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 20:01:04,338 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 244 transitions. [2021-06-05 20:01:04,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 20:01:04,340 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 20:01:04,340 INFO L554 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] [2021-06-05 20:01:04,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 20:01:04,340 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 20:01:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 20:01:04,346 INFO L82 PathProgramCache]: Analyzing trace with hash -268459697, now seen corresponding path program 1 times [2021-06-05 20:01:04,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 20:01:04,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047052451] [2021-06-05 20:01:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 20:01:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 20:01:04,420 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 20:01:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 20:01:04,439 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 20:01:04,462 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 20:01:04,462 INFO L655 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 20:01:04,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 20:01:04,465 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 20:01:04,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 08:01:04 BasicIcfg [2021-06-05 20:01:04,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 20:01:04,537 INFO L168 Benchmark]: Toolchain (without parser) took 3460.28 ms. Allocated memory was 346.0 MB in the beginning and 421.5 MB in the end (delta: 75.5 MB). Free memory was 307.1 MB in the beginning and 284.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 99.5 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,537 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 346.0 MB. Free memory is still 326.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 20:01:04,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1020.83 ms. Allocated memory is still 346.0 MB. Free memory was 306.8 MB in the beginning and 285.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 72.6 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.59 ms. Allocated memory is still 346.0 MB. Free memory was 285.3 MB in the beginning and 282.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,538 INFO L168 Benchmark]: Boogie Preprocessor took 53.56 ms. Allocated memory is still 346.0 MB. Free memory was 282.1 MB in the beginning and 279.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,538 INFO L168 Benchmark]: RCFGBuilder took 784.26 ms. Allocated memory is still 346.0 MB. Free memory was 279.0 MB in the beginning and 238.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,540 INFO L168 Benchmark]: TraceAbstraction took 1509.86 ms. Allocated memory was 346.0 MB in the beginning and 421.5 MB in the end (delta: 75.5 MB). Free memory was 238.1 MB in the beginning and 284.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. [2021-06-05 20:01:04,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 346.0 MB. Free memory is still 326.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1020.83 ms. Allocated memory is still 346.0 MB. Free memory was 306.8 MB in the beginning and 285.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 72.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.59 ms. Allocated memory is still 346.0 MB. Free memory was 285.3 MB in the beginning and 282.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 53.56 ms. Allocated memory is still 346.0 MB. Free memory was 282.1 MB in the beginning and 279.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 784.26 ms. Allocated memory is still 346.0 MB. Free memory was 279.0 MB in the beginning and 238.1 MB in the end (delta: 40.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1509.86 ms. Allocated memory was 346.0 MB in the beginning and 421.5 MB in the end (delta: 75.5 MB). Free memory was 238.1 MB in the beginning and 284.7 MB in the end (delta: -46.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={9:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={9:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={9:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1713] 0 return 0; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1721] 0 void *status; VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=1, t1={7:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=4, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={9:0}, pdev=6, t1={7:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1352.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 27.2ms, AutomataDifference: 316.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 305 SDtfs, 232 SDslu, 486 SDs, 0 SdLazy, 75 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 86.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 157.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 83.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.1ms SsaConstructionTime, 136.1ms SatisfiabilityAnalysisTime, 420.7ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...