/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:15:30,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:15:30,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:15:30,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:15:30,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:15:30,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:15:30,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:15:30,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:15:30,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:15:30,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:15:30,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:15:30,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:15:30,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:15:30,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:15:30,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:15:30,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:15:30,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:15:30,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:15:30,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:15:30,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:15:30,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:15:30,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:15:30,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:15:30,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:15:30,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:15:30,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:15:30,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:15:30,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:15:30,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:15:30,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:15:30,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:15:30,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:15:30,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:15:30,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:15:30,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:15:30,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:15:30,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:15:30,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:15:30,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:15:30,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:15:30,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:15:30,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:15:30,938 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:15:30,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:15:30,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:15:30,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:15:30,940 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:15:30,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:15:30,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:15:30,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:15:30,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:15:30,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:15:30,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:15:30,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:15:30,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:15:30,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:15:30,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:15:30,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:15:30,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:15:30,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:15:30,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:15:30,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:15:30,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:15:30,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:15:30,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:15:30,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:15:30,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:15:30,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:15:31,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:15:31,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:15:31,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:15:31,373 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:15:31,374 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:15:31,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2020-12-22 11:15:31,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877c72258/9603aba0868b4b2dac51b8afd0bc2e75/FLAGa47268765 [2020-12-22 11:15:32,395 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:15:32,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2020-12-22 11:15:32,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877c72258/9603aba0868b4b2dac51b8afd0bc2e75/FLAGa47268765 [2020-12-22 11:15:32,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877c72258/9603aba0868b4b2dac51b8afd0bc2e75 [2020-12-22 11:15:32,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:15:32,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:15:32,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:32,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:15:32,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:15:32,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:32" (1/1) ... [2020-12-22 11:15:32,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633c7716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:32, skipping insertion in model container [2020-12-22 11:15:32,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:15:32" (1/1) ... [2020-12-22 11:15:32,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:15:32,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:15:33,417 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2020-12-22 11:15:33,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:33,450 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:15:33,524 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2020-12-22 11:15:33,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:15:34,024 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:15:34,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34 WrapperNode [2020-12-22 11:15:34,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:15:34,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:34,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:15:34,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:15:34,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:15:34,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:15:34,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:15:34,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:15:34,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... [2020-12-22 11:15:34,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:15:34,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:15:34,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:15:34,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:15:34,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:15:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 11:15:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:15:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 11:15:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:15:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-22 11:15:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 11:15:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:15:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:15:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:15:34,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-22 11:15:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-22 11:15:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:15:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:15:34,295 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:15:34,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:15:34,867 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-22 11:15:34,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34 BoogieIcfgContainer [2020-12-22 11:15:34,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:15:34,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:15:34,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:15:34,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:15:34,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:15:32" (1/3) ... [2020-12-22 11:15:34,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:34, skipping insertion in model container [2020-12-22 11:15:34,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:15:34" (2/3) ... [2020-12-22 11:15:34,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb068b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:15:34, skipping insertion in model container [2020-12-22 11:15:34,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34" (3/3) ... [2020-12-22 11:15:34,879 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2020-12-22 11:15:34,886 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:15:34,886 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:15:34,891 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 11:15:34,892 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:15:34,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,920 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,926 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,926 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:15:34,933 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:15:34,952 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 11:15:34,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:15:34,977 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:15:34,977 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:15:34,977 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:15:34,977 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:15:34,977 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:15:34,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:15:34,978 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:15:34,992 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:15:34,995 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:34,998 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:35,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2020-12-22 11:15:35,051 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2020-12-22 11:15:35,051 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:15:35,054 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. [2020-12-22 11:15:35,056 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-12-22 11:15:37,852 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:15:38,022 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 11:15:39,385 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2020-12-22 11:15:39,719 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90 [2020-12-22 11:15:39,846 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-22 11:15:40,125 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2020-12-22 11:15:40,266 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-22 11:15:40,530 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-12-22 11:15:40,661 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-12-22 11:15:41,201 WARN L197 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 127 [2020-12-22 11:15:41,432 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-12-22 11:15:41,967 WARN L197 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2020-12-22 11:15:42,239 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-22 11:15:42,617 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-12-22 11:15:42,780 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-12-22 11:15:43,221 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114 [2020-12-22 11:15:43,435 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-12-22 11:15:43,438 INFO L131 LiptonReduction]: Checked pairs total: 311 [2020-12-22 11:15:43,439 INFO L133 LiptonReduction]: Total number of compositions: 100 [2020-12-22 11:15:43,444 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-12-22 11:15:43,450 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 23 states. [2020-12-22 11:15:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-22 11:15:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-12-22 11:15:43,459 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:43,460 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-12-22 11:15:43,460 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:43,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:43,467 INFO L82 PathProgramCache]: Analyzing trace with hash 358, now seen corresponding path program 1 times [2020-12-22 11:15:43,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:43,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857330664] [2020-12-22 11:15:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:15:43,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857330664] [2020-12-22 11:15:43,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:43,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-12-22 11:15:43,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61247115] [2020-12-22 11:15:43,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 11:15:43,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:43,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 11:15:43,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:15:43,821 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-22 11:15:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:43,836 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-12-22 11:15:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 11:15:43,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-12-22 11:15:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:43,848 INFO L225 Difference]: With dead ends: 20 [2020-12-22 11:15:43,848 INFO L226 Difference]: Without dead ends: 13 [2020-12-22 11:15:43,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 11:15:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-22 11:15:43,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-22 11:15:43,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-22 11:15:43,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-12-22 11:15:43,887 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 1 [2020-12-22 11:15:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:43,887 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-12-22 11:15:43,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 11:15:43,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-12-22 11:15:43,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:15:43,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:43,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:15:43,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:15:43,889 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:43,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:43,890 INFO L82 PathProgramCache]: Analyzing trace with hash 356766, now seen corresponding path program 1 times [2020-12-22 11:15:43,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:43,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263478494] [2020-12-22 11:15:43,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:15:44,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263478494] [2020-12-22 11:15:44,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:44,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:15:44,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118962059] [2020-12-22 11:15:44,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:15:44,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:44,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:15:44,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:44,069 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-12-22 11:15:44,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:44,092 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-12-22 11:15:44,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:15:44,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-22 11:15:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:44,093 INFO L225 Difference]: With dead ends: 11 [2020-12-22 11:15:44,094 INFO L226 Difference]: Without dead ends: 10 [2020-12-22 11:15:44,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-22 11:15:44,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-12-22 11:15:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-22 11:15:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-12-22 11:15:44,099 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 3 [2020-12-22 11:15:44,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:44,100 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-12-22 11:15:44,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:15:44,101 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-12-22 11:15:44,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 11:15:44,101 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:44,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 11:15:44,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 11:15:44,102 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:44,103 INFO L82 PathProgramCache]: Analyzing trace with hash 339575351, now seen corresponding path program 1 times [2020-12-22 11:15:44,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:44,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331669123] [2020-12-22 11:15:44,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 11:15:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 11:15:44,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331669123] [2020-12-22 11:15:44,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 11:15:44,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 11:15:44,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821504297] [2020-12-22 11:15:44,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 11:15:44,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 11:15:44,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 11:15:44,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:44,263 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-12-22 11:15:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 11:15:44,276 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-12-22 11:15:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 11:15:44,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-22 11:15:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 11:15:44,278 INFO L225 Difference]: With dead ends: 10 [2020-12-22 11:15:44,278 INFO L226 Difference]: Without dead ends: 7 [2020-12-22 11:15:44,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 11:15:44,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-22 11:15:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-22 11:15:44,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-22 11:15:44,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-22 11:15:44,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 5 [2020-12-22 11:15:44,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 11:15:44,284 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-22 11:15:44,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 11:15:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-22 11:15:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-22 11:15:44,286 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:15:44,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-22 11:15:44,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 11:15:44,287 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 11:15:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:15:44,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1936904376, now seen corresponding path program 1 times [2020-12-22 11:15:44,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:15:44,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350577442] [2020-12-22 11:15:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:15:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:15:44,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:15:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:15:44,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:15:44,420 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:15:44,421 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:15:44,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 11:15:44,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:15:44 BasicIcfg [2020-12-22 11:15:44,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:15:44,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:15:44,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:15:44,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:15:44,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:15:34" (3/4) ... [2020-12-22 11:15:44,453 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 11:15:44,502 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-races/race-1_3-join.i-witness.graphml [2020-12-22 11:15:44,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:15:44,504 INFO L168 Benchmark]: Toolchain (without parser) took 11951.88 ms. Allocated memory was 151.0 MB in the beginning and 235.9 MB in the end (delta: 84.9 MB). Free memory was 123.7 MB in the beginning and 189.3 MB in the end (delta: -65.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,505 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:15:44,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1469.43 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 123.5 MB in the beginning and 137.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.29 ms. Allocated memory is still 191.9 MB. Free memory was 137.2 MB in the beginning and 134.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,507 INFO L168 Benchmark]: Boogie Preprocessor took 79.38 ms. Allocated memory is still 191.9 MB. Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,508 INFO L168 Benchmark]: RCFGBuilder took 680.17 ms. Allocated memory is still 191.9 MB. Free memory was 132.0 MB in the beginning and 91.0 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,509 INFO L168 Benchmark]: TraceAbstraction took 9578.06 ms. Allocated memory was 191.9 MB in the beginning and 235.9 MB in the end (delta: 44.0 MB). Free memory was 90.5 MB in the beginning and 192.0 MB in the end (delta: -101.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:15:44,510 INFO L168 Benchmark]: Witness Printer took 53.02 ms. Allocated memory is still 235.9 MB. Free memory was 192.0 MB in the beginning and 189.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:15:44,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 123.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1469.43 ms. Allocated memory was 151.0 MB in the beginning and 191.9 MB in the end (delta: 40.9 MB). Free memory was 123.5 MB in the beginning and 137.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 79.29 ms. Allocated memory is still 191.9 MB. Free memory was 137.2 MB in the beginning and 134.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 79.38 ms. Allocated memory is still 191.9 MB. Free memory was 134.1 MB in the beginning and 132.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 680.17 ms. Allocated memory is still 191.9 MB. Free memory was 132.0 MB in the beginning and 91.0 MB in the end (delta: 40.9 MB). Peak memory consumption was 40.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9578.06 ms. Allocated memory was 191.9 MB in the beginning and 235.9 MB in the end (delta: 44.0 MB). Free memory was 90.5 MB in the beginning and 192.0 MB in the end (delta: -101.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 53.02 ms. Allocated memory is still 235.9 MB. Free memory was 192.0 MB in the beginning and 189.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 167 VarBasedMoverChecksPositive, 17 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 5 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.4s, 86 PlacesBefore, 17 PlacesAfterwards, 87 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 69 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 100 TotalNumberOfCompositions, 311 MoverChecksTotal - 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={5:0}] [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={5:0}] [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={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...