./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski.i -s /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/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 e53ed3e60647ae986bdffbbdb754e5112804a196 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:25,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:25,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:25,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:25,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:25,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:25,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:25,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:25,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:25,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:25,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:25,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:25,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:25,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:25,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:25,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:25,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:25,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:25,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:25,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:25,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:25,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:25,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:25,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:25,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:25,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:25,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:25,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:25,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:25,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:25,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:25,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:25,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:25,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:25,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:25,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:25,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:25,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:25,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:25,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:25,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:25,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:25,843 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:25,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:25,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:25,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:25,845 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:25,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:25,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:25,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:25,846 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:25,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:25,847 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:25,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:25,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:25,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:25,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:25,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:25,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:25,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:25,849 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/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 -> e53ed3e60647ae986bdffbbdb754e5112804a196 [2019-10-22 08:55:25,883 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:25,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:25,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:25,896 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:25,896 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:25,897 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/szymanski.i [2019-10-22 08:55:25,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/data/36a2cb7e7/7300f16fbd624273b819dec6f3e5cefe/FLAG6c01461c4 [2019-10-22 08:55:26,420 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:26,420 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/sv-benchmarks/c/pthread-atomic/szymanski.i [2019-10-22 08:55:26,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/data/36a2cb7e7/7300f16fbd624273b819dec6f3e5cefe/FLAG6c01461c4 [2019-10-22 08:55:26,916 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/data/36a2cb7e7/7300f16fbd624273b819dec6f3e5cefe [2019-10-22 08:55:26,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:26,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:26,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:26,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:26,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:26,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:26" (1/1) ... [2019-10-22 08:55:26,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a01417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:26, skipping insertion in model container [2019-10-22 08:55:26,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:26" (1/1) ... [2019-10-22 08:55:26,938 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:26,979 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:27,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:27,370 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:27,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:27,501 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:27,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27 WrapperNode [2019-10-22 08:55:27,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:27,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:27,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:27,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:27,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:27,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:27,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:27,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:27,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... [2019-10-22 08:55:27,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:27,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:27,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:27,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:27,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/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 [2019-10-22 08:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:55:27,668 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-10-22 08:55:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-10-22 08:55:27,669 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 08:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 08:55:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:27,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:27,672 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:55:28,095 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:28,096 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:55:28,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:28 BoogieIcfgContainer [2019-10-22 08:55:28,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:28,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:28,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:28,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:28,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:26" (1/3) ... [2019-10-22 08:55:28,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecd5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:28, skipping insertion in model container [2019-10-22 08:55:28,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:27" (2/3) ... [2019-10-22 08:55:28,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ecd5600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:28, skipping insertion in model container [2019-10-22 08:55:28,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:28" (3/3) ... [2019-10-22 08:55:28,110 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2019-10-22 08:55:28,144 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,144 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,144 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,144 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,145 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,145 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,146 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,146 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,146 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,146 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,147 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,147 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:28,160 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:28,160 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:28,172 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:55:28,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:55:28,199 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:28,200 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:28,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:28,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:28,200 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:28,200 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:28,200 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:28,200 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:28,209 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 84 transitions [2019-10-22 08:55:28,287 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1154 states. [2019-10-22 08:55:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states. [2019-10-22 08:55:28,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 08:55:28,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:28,300 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:28,302 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:28,307 INFO L82 PathProgramCache]: Analyzing trace with hash 503875710, now seen corresponding path program 1 times [2019-10-22 08:55:28,315 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:28,315 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629960536] [2019-10-22 08:55:28,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,316 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:28,454 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629960536] [2019-10-22 08:55:28,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:28,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:55:28,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503805619] [2019-10-22 08:55:28,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:55:28,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:28,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:55:28,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:55:28,476 INFO L87 Difference]: Start difference. First operand 1154 states. Second operand 2 states. [2019-10-22 08:55:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:28,526 INFO L93 Difference]: Finished difference Result 1154 states and 3405 transitions. [2019-10-22 08:55:28,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:55:28,528 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-10-22 08:55:28,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:28,550 INFO L225 Difference]: With dead ends: 1154 [2019-10-22 08:55:28,552 INFO L226 Difference]: Without dead ends: 1040 [2019-10-22 08:55:28,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:55:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2019-10-22 08:55:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2019-10-22 08:55:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2019-10-22 08:55:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 3099 transitions. [2019-10-22 08:55:28,683 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 3099 transitions. Word has length 21 [2019-10-22 08:55:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:28,684 INFO L462 AbstractCegarLoop]: Abstraction has 1040 states and 3099 transitions. [2019-10-22 08:55:28,684 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:55:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 3099 transitions. [2019-10-22 08:55:28,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 08:55:28,686 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:28,687 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:28,687 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash -2048251460, now seen corresponding path program 1 times [2019-10-22 08:55:28,688 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:28,688 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934572513] [2019-10-22 08:55:28,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,689 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:28,763 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934572513] [2019-10-22 08:55:28,763 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:28,763 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:28,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504205558] [2019-10-22 08:55:28,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:28,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:28,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:28,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:28,766 INFO L87 Difference]: Start difference. First operand 1040 states and 3099 transitions. Second operand 3 states. [2019-10-22 08:55:28,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:28,797 INFO L93 Difference]: Finished difference Result 1055 states and 3072 transitions. [2019-10-22 08:55:28,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:28,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 08:55:28,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:28,812 INFO L225 Difference]: With dead ends: 1055 [2019-10-22 08:55:28,812 INFO L226 Difference]: Without dead ends: 857 [2019-10-22 08:55:28,812 INFO L600 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 [2019-10-22 08:55:28,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2019-10-22 08:55:28,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 803. [2019-10-22 08:55:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-22 08:55:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2362 transitions. [2019-10-22 08:55:28,853 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2362 transitions. Word has length 21 [2019-10-22 08:55:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:28,855 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 2362 transitions. [2019-10-22 08:55:28,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:28,856 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2362 transitions. [2019-10-22 08:55:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:55:28,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:28,863 INFO L380 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] [2019-10-22 08:55:28,863 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:28,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1417198454, now seen corresponding path program 1 times [2019-10-22 08:55:28,864 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:28,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652516315] [2019-10-22 08:55:28,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:28,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652516315] [2019-10-22 08:55:28,928 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:28,928 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:28,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768043934] [2019-10-22 08:55:28,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:28,929 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:28,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:28,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:28,929 INFO L87 Difference]: Start difference. First operand 803 states and 2362 transitions. Second operand 3 states. [2019-10-22 08:55:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:28,951 INFO L93 Difference]: Finished difference Result 743 states and 2155 transitions. [2019-10-22 08:55:28,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:28,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 08:55:28,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:28,955 INFO L225 Difference]: With dead ends: 743 [2019-10-22 08:55:28,955 INFO L226 Difference]: Without dead ends: 530 [2019-10-22 08:55:28,955 INFO L600 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 [2019-10-22 08:55:28,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2019-10-22 08:55:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2019-10-22 08:55:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-10-22 08:55:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1532 transitions. [2019-10-22 08:55:28,971 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1532 transitions. Word has length 24 [2019-10-22 08:55:28,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:28,972 INFO L462 AbstractCegarLoop]: Abstraction has 530 states and 1532 transitions. [2019-10-22 08:55:28,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1532 transitions. [2019-10-22 08:55:28,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:28,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:28,974 INFO L380 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] [2019-10-22 08:55:28,974 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:28,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:28,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1574306091, now seen corresponding path program 1 times [2019-10-22 08:55:28,975 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:28,975 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358288492] [2019-10-22 08:55:28,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,975 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:28,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:29,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358288492] [2019-10-22 08:55:29,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:29,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:29,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640955149] [2019-10-22 08:55:29,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:29,032 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:29,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:29,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,032 INFO L87 Difference]: Start difference. First operand 530 states and 1532 transitions. Second operand 3 states. [2019-10-22 08:55:29,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:29,101 INFO L93 Difference]: Finished difference Result 578 states and 1633 transitions. [2019-10-22 08:55:29,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:29,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-22 08:55:29,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:29,104 INFO L225 Difference]: With dead ends: 578 [2019-10-22 08:55:29,105 INFO L226 Difference]: Without dead ends: 464 [2019-10-22 08:55:29,105 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-22 08:55:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2019-10-22 08:55:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-10-22 08:55:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1269 transitions. [2019-10-22 08:55:29,119 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1269 transitions. Word has length 32 [2019-10-22 08:55:29,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:29,120 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 1269 transitions. [2019-10-22 08:55:29,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:29,120 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1269 transitions. [2019-10-22 08:55:29,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:29,121 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:29,123 INFO L380 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] [2019-10-22 08:55:29,123 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:29,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:29,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1986120389, now seen corresponding path program 2 times [2019-10-22 08:55:29,123 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:29,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684169601] [2019-10-22 08:55:29,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,124 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:29,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684169601] [2019-10-22 08:55:29,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:29,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:29,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610541886] [2019-10-22 08:55:29,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:29,182 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:29,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:29,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,183 INFO L87 Difference]: Start difference. First operand 464 states and 1269 transitions. Second operand 3 states. [2019-10-22 08:55:29,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:29,254 INFO L93 Difference]: Finished difference Result 509 states and 1348 transitions. [2019-10-22 08:55:29,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:29,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-22 08:55:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:29,257 INFO L225 Difference]: With dead ends: 509 [2019-10-22 08:55:29,257 INFO L226 Difference]: Without dead ends: 482 [2019-10-22 08:55:29,258 INFO L600 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 [2019-10-22 08:55:29,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-10-22 08:55:29,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 464. [2019-10-22 08:55:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-10-22 08:55:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1224 transitions. [2019-10-22 08:55:29,275 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1224 transitions. Word has length 32 [2019-10-22 08:55:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:29,275 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 1224 transitions. [2019-10-22 08:55:29,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:29,275 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1224 transitions. [2019-10-22 08:55:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:29,277 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:29,278 INFO L380 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] [2019-10-22 08:55:29,278 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:29,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:29,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1778618671, now seen corresponding path program 1 times [2019-10-22 08:55:29,279 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:29,279 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043484085] [2019-10-22 08:55:29,279 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,279 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:29,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043484085] [2019-10-22 08:55:29,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:29,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:29,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066314140] [2019-10-22 08:55:29,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:29,332 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:29,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:29,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,332 INFO L87 Difference]: Start difference. First operand 464 states and 1224 transitions. Second operand 3 states. [2019-10-22 08:55:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:29,377 INFO L93 Difference]: Finished difference Result 434 states and 1105 transitions. [2019-10-22 08:55:29,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:29,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-22 08:55:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:29,380 INFO L225 Difference]: With dead ends: 434 [2019-10-22 08:55:29,380 INFO L226 Difference]: Without dead ends: 434 [2019-10-22 08:55:29,381 INFO L600 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 [2019-10-22 08:55:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-10-22 08:55:29,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2019-10-22 08:55:29,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2019-10-22 08:55:29,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1105 transitions. [2019-10-22 08:55:29,396 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1105 transitions. Word has length 32 [2019-10-22 08:55:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:29,397 INFO L462 AbstractCegarLoop]: Abstraction has 434 states and 1105 transitions. [2019-10-22 08:55:29,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:29,397 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1105 transitions. [2019-10-22 08:55:29,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:29,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:29,398 INFO L380 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] [2019-10-22 08:55:29,399 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:29,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:29,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1826312339, now seen corresponding path program 2 times [2019-10-22 08:55:29,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:29,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793460924] [2019-10-22 08:55:29,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:29,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:29,441 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793460924] [2019-10-22 08:55:29,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:29,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:29,442 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509382364] [2019-10-22 08:55:29,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:55:29,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:29,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:55:29,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,443 INFO L87 Difference]: Start difference. First operand 434 states and 1105 transitions. Second operand 3 states. [2019-10-22 08:55:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:29,472 INFO L93 Difference]: Finished difference Result 305 states and 788 transitions. [2019-10-22 08:55:29,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:55:29,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-22 08:55:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:29,474 INFO L225 Difference]: With dead ends: 305 [2019-10-22 08:55:29,474 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:29,474 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:55:29,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:29,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:29,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:29,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:55:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:29,475 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:29,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:55:29,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:29,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:29,478 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:29,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:29 BasicIcfg [2019-10-22 08:55:29,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:29,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:29,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:29,483 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:29,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:28" (3/4) ... [2019-10-22 08:55:29,487 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:29,493 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2019-10-22 08:55:29,494 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-10-22 08:55:29,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:55:29,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:29,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_982fcf3e-330c-4eb4-821c-a1f58a104911/bin/uautomizer/witness.graphml [2019-10-22 08:55:29,537 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:29,539 INFO L168 Benchmark]: Toolchain (without parser) took 2617.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 943.1 MB in the beginning and 907.0 MB in the end (delta: 36.1 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:29,540 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:29,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:29,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.70 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. [2019-10-22 08:55:29,541 INFO L168 Benchmark]: Boogie Preprocessor took 43.06 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. [2019-10-22 08:55:29,541 INFO L168 Benchmark]: RCFGBuilder took 506.59 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:29,542 INFO L168 Benchmark]: TraceAbstraction took 1380.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.0 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:29,542 INFO L168 Benchmark]: Witness Printer took 54.65 ms. Allocated memory is still 1.2 GB. Free memory is still 907.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:29,544 INFO L335 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 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 581.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.70 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 43.06 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. * RCFGBuilder took 506.59 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1380.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 907.0 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. * Witness Printer took 54.65 ms. Allocated memory is still 1.2 GB. Free memory is still 907.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 101 locations, 4 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 525 SDtfs, 179 SDslu, 225 SDs, 0 SdLazy, 82 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1154occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 72 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 6809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...