./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61886a16eaa9879254fb15413029565914aacace ............................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:47:56,848 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:47:56,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:47:56,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:47:56,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:47:56,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:47:56,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:47:56,859 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:47:56,860 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:47:56,861 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:47:56,862 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:47:56,862 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:47:56,862 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:47:56,863 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:47:56,864 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:47:56,864 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:47:56,864 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:47:56,866 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:47:56,867 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:47:56,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:47:56,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:47:56,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:47:56,871 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:47:56,871 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:47:56,871 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:47:56,872 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:47:56,873 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:47:56,873 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:47:56,874 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:47:56,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:47:56,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:47:56,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:47:56,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:47:56,875 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:47:56,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:47:56,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:47:56,876 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 10:47:56,886 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:47:56,887 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:47:56,887 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:47:56,887 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:47:56,888 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:47:56,888 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:47:56,888 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:47:56,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:47:56,888 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:47:56,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:47:56,890 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:47:56,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:47:56,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 10:47:56,891 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61886a16eaa9879254fb15413029565914aacace [2018-11-28 10:47:56,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:47:56,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:47:56,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:47:56,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:47:56,928 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:47:56,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/../../sv-benchmarks/c/pthread/lazy01_false-unreach-call.i [2018-11-28 10:47:56,965 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/data/8d39fa663/839b98b8b77640ec9069f38e52ea410e/FLAG83b97eb73 [2018-11-28 10:47:57,395 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:47:57,396 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/sv-benchmarks/c/pthread/lazy01_false-unreach-call.i [2018-11-28 10:47:57,404 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/data/8d39fa663/839b98b8b77640ec9069f38e52ea410e/FLAG83b97eb73 [2018-11-28 10:47:57,413 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/data/8d39fa663/839b98b8b77640ec9069f38e52ea410e [2018-11-28 10:47:57,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:47:57,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:47:57,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:47:57,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:47:57,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:47:57,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f49e46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57, skipping insertion in model container [2018-11-28 10:47:57,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:47:57,456 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:47:57,651 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:47:57,661 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:47:57,738 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:47:57,781 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:47:57,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57 WrapperNode [2018-11-28 10:47:57,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:47:57,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:47:57,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:47:57,782 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:47:57,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:47:57,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:47:57,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:47:57,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:47:57,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... [2018-11-28 10:47:57,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:47:57,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:47:57,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:47:57,824 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:47:57,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/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 [2018-11-28 10:47:57,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-11-28 10:47:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2018-11-28 10:47:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2018-11-28 10:47:57,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 10:47:57,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:47:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 10:47:57,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:47:57,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:47:57,858 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 10:47:58,083 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:47:58,083 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 10:47:58,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:47:58 BoogieIcfgContainer [2018-11-28 10:47:58,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:47:58,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:47:58,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:47:58,087 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:47:58,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:47:57" (1/3) ... [2018-11-28 10:47:58,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d47f925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:47:58, skipping insertion in model container [2018-11-28 10:47:58,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:47:57" (2/3) ... [2018-11-28 10:47:58,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d47f925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:47:58, skipping insertion in model container [2018-11-28 10:47:58,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:47:58" (3/3) ... [2018-11-28 10:47:58,090 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01_false-unreach-call.i [2018-11-28 10:47:58,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,120 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,120 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,120 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,121 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,122 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,123 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,123 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,123 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,123 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,123 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,124 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,124 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,124 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:47:58,143 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 10:47:58,144 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:47:58,150 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-28 10:47:58,159 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-28 10:47:58,177 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:47:58,178 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:47:58,178 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:47:58,178 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:47:58,178 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:47:58,178 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:47:58,178 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:47:58,178 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:47:58,178 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:47:58,185 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71places, 74 transitions [2018-11-28 10:47:58,268 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3562 states. [2018-11-28 10:47:58,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states. [2018-11-28 10:47:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 10:47:58,279 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:47:58,279 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:47:58,281 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:47:58,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:47:58,285 INFO L82 PathProgramCache]: Analyzing trace with hash -394378403, now seen corresponding path program 1 times [2018-11-28 10:47:58,286 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:47:58,286 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:47:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:47:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:47:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:47:58,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:47:58,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:47:58,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:47:58,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:47:58,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:47:58,465 INFO L87 Difference]: Start difference. First operand 3562 states. Second operand 3 states. [2018-11-28 10:47:58,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:47:58,525 INFO L93 Difference]: Finished difference Result 3442 states and 10692 transitions. [2018-11-28 10:47:58,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:47:58,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-28 10:47:58,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:47:58,550 INFO L225 Difference]: With dead ends: 3442 [2018-11-28 10:47:58,550 INFO L226 Difference]: Without dead ends: 1949 [2018-11-28 10:47:58,551 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:47:58,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2018-11-28 10:47:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1949. [2018-11-28 10:47:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2018-11-28 10:47:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 5937 transitions. [2018-11-28 10:47:58,655 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 5937 transitions. Word has length 28 [2018-11-28 10:47:58,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:47:58,656 INFO L480 AbstractCegarLoop]: Abstraction has 1949 states and 5937 transitions. [2018-11-28 10:47:58,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:47:58,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 5937 transitions. [2018-11-28 10:47:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 10:47:58,660 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:47:58,660 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:47:58,661 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:47:58,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:47:58,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1936380735, now seen corresponding path program 1 times [2018-11-28 10:47:58,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:47:58,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:47:58,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:47:58,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:47:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:47:58,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:47:58,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:47:58,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 10:47:58,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:47:58,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:47:58,737 INFO L87 Difference]: Start difference. First operand 1949 states and 5937 transitions. Second operand 3 states. [2018-11-28 10:47:58,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:47:58,789 INFO L93 Difference]: Finished difference Result 1154 states and 3065 transitions. [2018-11-28 10:47:58,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:47:58,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 10:47:58,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:47:58,794 INFO L225 Difference]: With dead ends: 1154 [2018-11-28 10:47:58,794 INFO L226 Difference]: Without dead ends: 1130 [2018-11-28 10:47:58,795 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:47:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2018-11-28 10:47:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2018-11-28 10:47:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2018-11-28 10:47:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 3001 transitions. [2018-11-28 10:47:58,822 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 3001 transitions. Word has length 32 [2018-11-28 10:47:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:47:58,822 INFO L480 AbstractCegarLoop]: Abstraction has 1130 states and 3001 transitions. [2018-11-28 10:47:58,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 10:47:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 3001 transitions. [2018-11-28 10:47:58,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 10:47:58,824 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:47:58,824 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:47:58,824 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:47:58,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:47:58,825 INFO L82 PathProgramCache]: Analyzing trace with hash -188580983, now seen corresponding path program 1 times [2018-11-28 10:47:58,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:47:58,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:47:58,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:47:58,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:47:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:47:58,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:47:58,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 10:47:58,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 10:47:58,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 10:47:58,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 10:47:58,884 INFO L87 Difference]: Start difference. First operand 1130 states and 3001 transitions. Second operand 4 states. [2018-11-28 10:47:58,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:47:58,903 INFO L93 Difference]: Finished difference Result 1082 states and 2869 transitions. [2018-11-28 10:47:58,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 10:47:58,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-28 10:47:58,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:47:58,906 INFO L225 Difference]: With dead ends: 1082 [2018-11-28 10:47:58,906 INFO L226 Difference]: Without dead ends: 1034 [2018-11-28 10:47:58,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 10:47:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2018-11-28 10:47:58,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2018-11-28 10:47:58,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-11-28 10:47:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 2737 transitions. [2018-11-28 10:47:58,921 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 2737 transitions. Word has length 33 [2018-11-28 10:47:58,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:47:58,922 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 2737 transitions. [2018-11-28 10:47:58,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 10:47:58,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 2737 transitions. [2018-11-28 10:47:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 10:47:58,923 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:47:58,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:47:58,924 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:47:58,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:47:58,924 INFO L82 PathProgramCache]: Analyzing trace with hash -65217093, now seen corresponding path program 1 times [2018-11-28 10:47:58,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:47:58,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:47:58,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:47:58,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:47:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:47:58,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:47:58,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 10:47:58,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 10:47:58,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:47:58,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:47:58,993 INFO L87 Difference]: Start difference. First operand 1034 states and 2737 transitions. Second operand 5 states. [2018-11-28 10:47:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:47:59,028 INFO L93 Difference]: Finished difference Result 986 states and 2605 transitions. [2018-11-28 10:47:59,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 10:47:59,028 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-28 10:47:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:47:59,031 INFO L225 Difference]: With dead ends: 986 [2018-11-28 10:47:59,031 INFO L226 Difference]: Without dead ends: 938 [2018-11-28 10:47:59,032 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 10:47:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2018-11-28 10:47:59,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2018-11-28 10:47:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2018-11-28 10:47:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2473 transitions. [2018-11-28 10:47:59,045 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2473 transitions. Word has length 35 [2018-11-28 10:47:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:47:59,046 INFO L480 AbstractCegarLoop]: Abstraction has 938 states and 2473 transitions. [2018-11-28 10:47:59,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 10:47:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2473 transitions. [2018-11-28 10:47:59,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 10:47:59,047 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:47:59,047 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:47:59,048 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:47:59,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:47:59,048 INFO L82 PathProgramCache]: Analyzing trace with hash 2010995727, now seen corresponding path program 1 times [2018-11-28 10:47:59,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:47:59,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:47:59,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:59,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:47:59,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:47:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:47:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:47:59,098 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 10:47:59,135 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 10:47:59,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:47:59 BasicIcfg [2018-11-28 10:47:59,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:47:59,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:47:59,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:47:59,137 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:47:59,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:47:58" (3/4) ... [2018-11-28 10:47:59,139 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 10:47:59,185 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cc1898f1-1884-47d6-8a91-26c1188c7852/bin-2019/uautomizer/witness.graphml [2018-11-28 10:47:59,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:47:59,185 INFO L168 Benchmark]: Toolchain (without parser) took 1769.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.7 MB in the beginning and 904.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 179.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,187 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:47:59,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,187 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:47:59,188 INFO L168 Benchmark]: Boogie Preprocessor took 14.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,188 INFO L168 Benchmark]: RCFGBuilder took 260.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,188 INFO L168 Benchmark]: TraceAbstraction took 1051.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.8 MB in the end (delta: 172.9 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,189 INFO L168 Benchmark]: Witness Printer took 48.29 ms. Allocated memory is still 1.2 GB. Free memory was 909.8 MB in the beginning and 904.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:47:59,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -161.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 260.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1051.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 909.8 MB in the end (delta: 172.9 MB). Peak memory consumption was 172.9 MB. Max. memory is 11.5 GB. * Witness Printer took 48.29 ms. Allocated memory is still 1.2 GB. Free memory was 909.8 MB in the beginning and 904.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1242]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1217] -1 pthread_mutex_t mutex; VAL [mutex={27:0}] [L1218] -1 int data = 0; VAL [data=0, mutex={27:0}] [L1254] -1 pthread_t t1, t2, t3; VAL [data=0, mutex={27:0}] [L1256] FCALL, FORK -1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={27:0}] [L1257] FCALL, FORK -1 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={27:0}] [L1258] FCALL, FORK -1 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={27:0}] [L1232] 0 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={27:0}] [L1223] 2 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1241] COND TRUE 1 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1242] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 2 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 262 SDtfs, 153 SDslu, 307 SDs, 0 SdLazy, 43 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3562occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 8944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...