/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-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:39:11,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:39:11,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:39:11,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:39:11,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:39:11,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:39:11,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:39:11,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:39:11,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:39:11,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:39:11,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:39:11,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:39:11,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:39:11,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:39:11,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:39:11,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:39:11,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:39:11,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:39:11,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:39:11,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:39:11,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:39:11,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:39:11,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:39:11,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:39:11,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:39:11,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:39:11,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:39:11,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:39:11,754 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-PN-SemanticLbe.epf [2021-03-11 20:39:11,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:39:11,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:39:11,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:39:11,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:39:11,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:39:11,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:39:11,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:39:11,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:39:11,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:39:11,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:39:11,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:39:12,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:39:12,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:39:12,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:39:12,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:39:12,031 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:39:12,032 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-03-11 20:39:12,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7831bebd0/7677c9f2fc004883b616165ab32cb2af/FLAG5314353ed [2021-03-11 20:39:12,512 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:39:12,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-03-11 20:39:12,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7831bebd0/7677c9f2fc004883b616165ab32cb2af/FLAG5314353ed [2021-03-11 20:39:12,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7831bebd0/7677c9f2fc004883b616165ab32cb2af [2021-03-11 20:39:12,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:39:12,857 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:39:12,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:39:12,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:39:12,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:39:12,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:39:12" (1/1) ... [2021-03-11 20:39:12,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d7498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:12, skipping insertion in model container [2021-03-11 20:39:12,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:39:12" (1/1) ... [2021-03-11 20:39:12,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:39:12,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:39:13,302 WARN L226 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] [2021-03-11 20:39:13,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:39:13,333 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:39:13,354 WARN L226 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] [2021-03-11 20:39:13,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:39:13,530 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:39:13,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13 WrapperNode [2021-03-11 20:39:13,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:39:13,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:39:13,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:39:13,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:39:13,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:39:13,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:39:13,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:39:13,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:39:13,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (1/1) ... [2021-03-11 20:39:13,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:39:13,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:39:13,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:39:13,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:39:13,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (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 [2021-03-11 20:39:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 20:39:13,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:39:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 20:39:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:39:13,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:39:13,661 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:39:14,055 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:39:14,055 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-03-11 20:39:14,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:39:14 BoogieIcfgContainer [2021-03-11 20:39:14,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:39:14,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:39:14,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:39:14,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:39:14,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:39:12" (1/3) ... [2021-03-11 20:39:14,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f1b221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:39:14, skipping insertion in model container [2021-03-11 20:39:14,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:13" (2/3) ... [2021-03-11 20:39:14,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f1b221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:39:14, skipping insertion in model container [2021-03-11 20:39:14,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:39:14" (3/3) ... [2021-03-11 20:39:14,062 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-03-11 20:39:14,068 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:39:14,071 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-03-11 20:39:14,071 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:39:14,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,093 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,093 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,093 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,094 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,095 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,097 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,097 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,097 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:14,101 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 20:39:14,113 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-11 20:39:14,133 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:39:14,133 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:39:14,133 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:39:14,133 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:39:14,134 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:39:14,134 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:39:14,134 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:39:14,134 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:39:14,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2021-03-11 20:39:14,176 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2021-03-11 20:39:14,176 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 20:39:14,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 4/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 150 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2021-03-11 20:39:14,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 87 transitions, 182 flow [2021-03-11 20:39:14,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 158 flow [2021-03-11 20:39:14,192 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:39:14,198 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 158 flow [2021-03-11 20:39:14,199 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 158 flow [2021-03-11 20:39:14,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 158 flow [2021-03-11 20:39:14,227 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2021-03-11 20:39:14,227 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 20:39:14,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 2/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-11 20:39:14,229 INFO L116 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-11 20:39:15,923 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-03-11 20:39:16,079 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-03-11 20:39:17,041 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-03-11 20:39:17,169 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-03-11 20:39:17,316 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-11 20:39:17,473 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-03-11 20:39:17,482 INFO L131 LiptonReduction]: Checked pairs total: 216 [2021-03-11 20:39:17,483 INFO L133 LiptonReduction]: Total number of compositions: 84 [2021-03-11 20:39:17,484 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3294 [2021-03-11 20:39:17,487 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-11 20:39:17,487 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:39:17,488 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:39:17,488 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2021-03-11 20:39:17,488 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:39:17,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:39:17,491 INFO L82 PathProgramCache]: Analyzing trace with hash 345, now seen corresponding path program 1 times [2021-03-11 20:39:17,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:39:17,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892737634] [2021-03-11 20:39:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:39:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:39:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:39:17,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892737634] [2021-03-11 20:39:17,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:39:17,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-03-11 20:39:17,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690234625] [2021-03-11 20:39:17,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 20:39:17,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:39:17,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 20:39:17,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 20:39:17,674 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 171 [2021-03-11 20:39:17,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 12 transitions, 30 flow. Second operand has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 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) [2021-03-11 20:39:17,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:39:17,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 171 [2021-03-11 20:39:17,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:39:17,679 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-11 20:39:17,679 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 20:39:17,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 8 events. 0/8 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 20:39:17,680 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 0 selfloop transitions, 0 changer transitions 2/8 dead transitions. [2021-03-11 20:39:17,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 22 flow [2021-03-11 20:39:17,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 20:39:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 20:39:17,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 298 transitions. [2021-03-11 20:39:17,687 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8713450292397661 [2021-03-11 20:39:17,687 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 298 transitions. [2021-03-11 20:39:17,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 298 transitions. [2021-03-11 20:39:17,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:39:17,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 298 transitions. [2021-03-11 20:39:17,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 149.0) internal successors, (298), 2 states have internal predecessors, (298), 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) [2021-03-11 20:39:17,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2021-03-11 20:39:17,694 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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) [2021-03-11 20:39:17,695 INFO L185 Difference]: Start difference. First operand has 15 places, 12 transitions, 30 flow. Second operand 2 states and 298 transitions. [2021-03-11 20:39:17,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 22 flow [2021-03-11 20:39:17,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 18 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:39:17,697 INFO L241 Difference]: Finished difference. Result has 11 places, 6 transitions, 13 flow [2021-03-11 20:39:17,698 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=13, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2021-03-11 20:39:17,699 INFO L335 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2021-03-11 20:39:17,699 INFO L480 AbstractCegarLoop]: Abstraction has has 11 places, 6 transitions, 13 flow [2021-03-11 20:39:17,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 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) [2021-03-11 20:39:17,699 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:39:17,699 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 20:39:17,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:39:17,700 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:39:17,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:39:17,700 INFO L82 PathProgramCache]: Analyzing trace with hash 323889506, now seen corresponding path program 1 times [2021-03-11 20:39:17,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:39:17,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650235438] [2021-03-11 20:39:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:39:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:39:17,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:39:17,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:39:17,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:39:17,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:39:17,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:39:17,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650235438] [2021-03-11 20:39:17,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:39:17,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:39:17,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869840449] [2021-03-11 20:39:17,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:39:17,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:39:17,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:39:17,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:39:17,783 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 171 [2021-03-11 20:39:17,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 6 transitions, 13 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2021-03-11 20:39:17,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:39:17,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 171 [2021-03-11 20:39:17,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:39:17,798 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-11 20:39:17,798 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:39:17,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/10 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-11 20:39:17,798 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 2 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2021-03-11 20:39:17,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 7 transitions, 25 flow [2021-03-11 20:39:17,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:39:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:39:17,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2021-03-11 20:39:17,802 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6608187134502924 [2021-03-11 20:39:17,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2021-03-11 20:39:17,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2021-03-11 20:39:17,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:39:17,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2021-03-11 20:39:17,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 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) [2021-03-11 20:39:17,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-11 20:39:17,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-03-11 20:39:17,806 INFO L185 Difference]: Start difference. First operand has 11 places, 6 transitions, 13 flow. Second operand 3 states and 339 transitions. [2021-03-11 20:39:17,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 7 transitions, 25 flow [2021-03-11 20:39:17,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 25 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 20:39:17,806 INFO L241 Difference]: Finished difference. Result has 12 places, 6 transitions, 21 flow [2021-03-11 20:39:17,807 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2021-03-11 20:39:17,807 INFO L335 CegarLoopForPetriNet]: 15 programPoint places, -3 predicate places. [2021-03-11 20:39:17,807 INFO L480 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 21 flow [2021-03-11 20:39:17,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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) [2021-03-11 20:39:17,807 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:39:17,807 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-11 20:39:17,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:39:17,808 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:39:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:39:17,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1450643336, now seen corresponding path program 1 times [2021-03-11 20:39:17,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:39:17,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64775043] [2021-03-11 20:39:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:39:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 20:39:17,844 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 20:39:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 20:39:17,876 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 20:39:17,897 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 20:39:17,897 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 20:39:17,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:39:17,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:39:17 BasicIcfg [2021-03-11 20:39:17,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:39:17,917 INFO L168 Benchmark]: Toolchain (without parser) took 5063.45 ms. Allocated memory was 329.3 MB in the beginning and 436.2 MB in the end (delta: 107.0 MB). Free memory was 291.1 MB in the beginning and 225.0 MB in the end (delta: 66.0 MB). Peak memory consumption was 175.0 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,918 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 329.3 MB. Free memory was 310.6 MB in the beginning and 310.5 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:39:17,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.96 ms. Allocated memory is still 329.3 MB. Free memory was 290.4 MB in the beginning and 265.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.91 ms. Allocated memory is still 329.3 MB. Free memory was 265.9 MB in the beginning and 262.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,920 INFO L168 Benchmark]: Boogie Preprocessor took 29.28 ms. Allocated memory is still 329.3 MB. Free memory was 262.7 MB in the beginning and 260.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,923 INFO L168 Benchmark]: RCFGBuilder took 437.91 ms. Allocated memory is still 329.3 MB. Free memory was 260.6 MB in the beginning and 219.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,924 INFO L168 Benchmark]: TraceAbstraction took 3858.33 ms. Allocated memory was 329.3 MB in the beginning and 436.2 MB in the end (delta: 107.0 MB). Free memory was 218.7 MB in the beginning and 225.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 100.6 MB. Max. memory is 16.0 GB. [2021-03-11 20:39:17,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 329.3 MB. Free memory was 310.6 MB in the beginning and 310.5 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 671.96 ms. Allocated memory is still 329.3 MB. Free memory was 290.4 MB in the beginning and 265.9 MB in the end (delta: 24.5 MB). Peak memory consumption was 70.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.91 ms. Allocated memory is still 329.3 MB. Free memory was 265.9 MB in the beginning and 262.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.28 ms. Allocated memory is still 329.3 MB. Free memory was 262.7 MB in the beginning and 260.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 437.91 ms. Allocated memory is still 329.3 MB. Free memory was 260.6 MB in the beginning and 219.7 MB in the end (delta: 40.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3858.33 ms. Allocated memory was 329.3 MB in the beginning and 436.2 MB in the end (delta: 107.0 MB). Free memory was 218.7 MB in the beginning and 225.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 100.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3283.1ms, 77 PlacesBefore, 15 PlacesAfterwards, 76 TransitionsBefore, 12 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 7 FixpointIterations, 62 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 84 TotalNumberOfCompositions, 216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 168, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 130, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 130, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 168, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 130, unknown conditional: 0, unknown unconditional: 130] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 1, Positive conditional cache size: 0, Positive unconditional cache size: 1, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - 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; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={6:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={7:0}, pdev=4, t1={6:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3768.7ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 53.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3352.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.0ms SsaConstructionTime, 59.0ms SatisfiabilityAnalysisTime, 90.6ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...