./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.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_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/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 1dad76de384458f25b2ba82474cd10153abda59e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:55:18,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:18,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:18,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:18,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:18,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:18,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:18,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:18,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:18,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:18,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:18,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:18,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:18,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:18,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:18,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:18,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:18,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:18,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:18,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:18,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:18,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:18,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:18,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:18,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:18,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:18,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:18,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:18,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:18,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:18,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:18,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:18,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:18,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:18,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:18,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:18,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:18,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:18,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:18,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:18,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:18,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:18,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:18,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:18,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:18,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:18,838 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:18,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:18,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:18,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:18,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:18,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:18,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:18,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:18,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:18,840 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:18,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:18,840 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:18,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:18,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:18,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:18,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:18,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:18,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:18,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:18,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:18,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:18,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:18,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:18,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:18,842 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_ee907dad-76c3-4be9-9666-2868233b3aad/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 -> 1dad76de384458f25b2ba82474cd10153abda59e [2019-10-22 08:55:18,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:18,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:18,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:18,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:18,888 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:18,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-10-22 08:55:18,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/data/f8c1af63a/2c210b2a161d4bd3912b40fc5715f63c/FLAG35db83b84 [2019-10-22 08:55:19,381 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:19,382 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/sv-benchmarks/c/pthread-wmm/safe030_tso.oepc.i [2019-10-22 08:55:19,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/data/f8c1af63a/2c210b2a161d4bd3912b40fc5715f63c/FLAG35db83b84 [2019-10-22 08:55:19,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/data/f8c1af63a/2c210b2a161d4bd3912b40fc5715f63c [2019-10-22 08:55:19,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:19,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:19,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:19,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:19,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:19,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:19" (1/1) ... [2019-10-22 08:55:19,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0c4673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:19, skipping insertion in model container [2019-10-22 08:55:19,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:19" (1/1) ... [2019-10-22 08:55:19,926 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:19,970 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:20,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:20,344 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:20,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:20,460 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:20,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20 WrapperNode [2019-10-22 08:55:20,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:20,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:20,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:20,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:20,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:20,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:20,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:20,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:20,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... [2019-10-22 08:55:20,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:20,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:20,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:20,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:20,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/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 08:55:20,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:20,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:55:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:20,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:55:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:55:20,576 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:55:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:55:20,577 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:55:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:55:20,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:55:20,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:20,580 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 08:55:20,868 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:20,869 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:20,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:20 BoogieIcfgContainer [2019-10-22 08:55:20,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:20,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:20,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:20,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:20,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:19" (1/3) ... [2019-10-22 08:55:20,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:20, skipping insertion in model container [2019-10-22 08:55:20,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:20" (2/3) ... [2019-10-22 08:55:20,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1570e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:20, skipping insertion in model container [2019-10-22 08:55:20,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:20" (3/3) ... [2019-10-22 08:55:20,876 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-10-22 08:55:20,905 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,905 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,906 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,907 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,908 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,909 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,910 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,910 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,910 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,910 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:20,927 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:20,927 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:20,938 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:20,950 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:20,971 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:20,971 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:20,971 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:20,971 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:20,972 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:20,972 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:20,972 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:20,972 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:20,983 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions [2019-10-22 08:55:21,157 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-10-22 08:55:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-10-22 08:55:21,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 08:55:21,181 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:21,182 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] [2019-10-22 08:55:21,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:21,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1436525340, now seen corresponding path program 1 times [2019-10-22 08:55:21,199 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:21,199 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128024765] [2019-10-22 08:55:21,199 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:21,200 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:21,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:21,512 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 08:55:21,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128024765] [2019-10-22 08:55:21,514 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:21,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:21,514 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378866755] [2019-10-22 08:55:21,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:21,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:21,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:21,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:21,534 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-10-22 08:55:21,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:21,657 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-10-22 08:55:21,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:21,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 08:55:21,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:21,680 INFO L225 Difference]: With dead ends: 2491 [2019-10-22 08:55:21,681 INFO L226 Difference]: Without dead ends: 1126 [2019-10-22 08:55:21,682 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:21,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-10-22 08:55:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-10-22 08:55:21,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-10-22 08:55:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-10-22 08:55:21,789 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-10-22 08:55:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:21,790 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-10-22 08:55:21,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:21,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-10-22 08:55:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:55:21,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:21,800 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] [2019-10-22 08:55:21,800 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:21,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:21,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1185426072, now seen corresponding path program 1 times [2019-10-22 08:55:21,801 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:21,801 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632473792] [2019-10-22 08:55:21,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:21,801 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:21,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:21,945 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 08:55:21,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632473792] [2019-10-22 08:55:21,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:21,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:21,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365536556] [2019-10-22 08:55:21,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:21,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:21,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:21,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:21,949 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-10-22 08:55:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,046 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-10-22 08:55:22,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:22,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 08:55:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,053 INFO L225 Difference]: With dead ends: 1166 [2019-10-22 08:55:22,053 INFO L226 Difference]: Without dead ends: 1042 [2019-10-22 08:55:22,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-10-22 08:55:22,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-10-22 08:55:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-10-22 08:55:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-10-22 08:55:22,107 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-10-22 08:55:22,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,107 INFO L462 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-10-22 08:55:22,107 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-10-22 08:55:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:55:22,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,110 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] [2019-10-22 08:55:22,110 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1354593798, now seen corresponding path program 1 times [2019-10-22 08:55:22,111 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222715003] [2019-10-22 08:55:22,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:22,224 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 08:55:22,225 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222715003] [2019-10-22 08:55:22,225 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:22,225 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:22,225 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168845716] [2019-10-22 08:55:22,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:22,226 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:22,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:22,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:22,226 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-10-22 08:55:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,326 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-10-22 08:55:22,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:22,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 08:55:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,330 INFO L225 Difference]: With dead ends: 818 [2019-10-22 08:55:22,330 INFO L226 Difference]: Without dead ends: 706 [2019-10-22 08:55:22,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:22,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-22 08:55:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-10-22 08:55:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-22 08:55:22,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-10-22 08:55:22,355 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-10-22 08:55:22,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,356 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-10-22 08:55:22,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-10-22 08:55:22,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:22,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,358 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] [2019-10-22 08:55:22,358 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1357106860, now seen corresponding path program 1 times [2019-10-22 08:55:22,359 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485862431] [2019-10-22 08:55:22,359 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,360 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:22,481 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 08:55:22,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485862431] [2019-10-22 08:55:22,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:22,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:22,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479058217] [2019-10-22 08:55:22,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:22,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:22,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:22,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:22,484 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-10-22 08:55:22,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,581 INFO L93 Difference]: Finished difference Result 1106 states and 3289 transitions. [2019-10-22 08:55:22,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:22,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:55:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,585 INFO L225 Difference]: With dead ends: 1106 [2019-10-22 08:55:22,585 INFO L226 Difference]: Without dead ends: 590 [2019-10-22 08:55:22,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:22,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-22 08:55:22,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-22 08:55:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-22 08:55:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1753 transitions. [2019-10-22 08:55:22,603 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1753 transitions. Word has length 31 [2019-10-22 08:55:22,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,604 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 1753 transitions. [2019-10-22 08:55:22,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:22,604 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1753 transitions. [2019-10-22 08:55:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:22,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,605 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] [2019-10-22 08:55:22,606 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,606 INFO L82 PathProgramCache]: Analyzing trace with hash 478598006, now seen corresponding path program 2 times [2019-10-22 08:55:22,606 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054761541] [2019-10-22 08:55:22,607 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,607 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:22,702 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 08:55:22,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054761541] [2019-10-22 08:55:22,702 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:22,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:22,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131152682] [2019-10-22 08:55:22,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:22,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:22,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:22,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:22,704 INFO L87 Difference]: Start difference. First operand 590 states and 1753 transitions. Second operand 6 states. [2019-10-22 08:55:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,795 INFO L93 Difference]: Finished difference Result 974 states and 2937 transitions. [2019-10-22 08:55:22,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:22,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:55:22,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,798 INFO L225 Difference]: With dead ends: 974 [2019-10-22 08:55:22,798 INFO L226 Difference]: Without dead ends: 554 [2019-10-22 08:55:22,798 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:22,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2019-10-22 08:55:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2019-10-22 08:55:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-10-22 08:55:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 1669 transitions. [2019-10-22 08:55:22,814 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 1669 transitions. Word has length 31 [2019-10-22 08:55:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,814 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 1669 transitions. [2019-10-22 08:55:22,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 1669 transitions. [2019-10-22 08:55:22,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:22,821 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:22,821 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] [2019-10-22 08:55:22,821 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:22,822 INFO L82 PathProgramCache]: Analyzing trace with hash 331948478, now seen corresponding path program 3 times [2019-10-22 08:55:22,822 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:22,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138541472] [2019-10-22 08:55:22,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,822 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:22,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:22,906 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 08:55:22,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138541472] [2019-10-22 08:55:22,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:22,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:22,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004234279] [2019-10-22 08:55:22,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:22,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:22,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:22,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:22,908 INFO L87 Difference]: Start difference. First operand 554 states and 1669 transitions. Second operand 6 states. [2019-10-22 08:55:22,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:22,968 INFO L93 Difference]: Finished difference Result 426 states and 1253 transitions. [2019-10-22 08:55:22,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:22,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:55:22,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:22,969 INFO L225 Difference]: With dead ends: 426 [2019-10-22 08:55:22,969 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:22,969 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:22,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:22,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-22 08:55:22,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:22,970 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:22,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:22,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:22,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:22,974 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:22,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:22 BasicIcfg [2019-10-22 08:55:22,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:22,976 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:22,976 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:22,977 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:22,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:20" (3/4) ... [2019-10-22 08:55:22,982 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:22,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:55:22,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:55:22,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:55:22,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:55:22,995 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:23,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee907dad-76c3-4be9-9666-2868233b3aad/bin/uautomizer/witness.graphml [2019-10-22 08:55:23,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:23,038 INFO L168 Benchmark]: Toolchain (without parser) took 3124.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 939.4 MB in the beginning and 810.9 MB in the end (delta: 128.5 MB). Peak memory consumption was 244.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:23,038 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:23,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:23,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:23,042 INFO L168 Benchmark]: Boogie Preprocessor took 22.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:23,042 INFO L168 Benchmark]: RCFGBuilder took 348.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:23,043 INFO L168 Benchmark]: TraceAbstraction took 2105.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 817.7 MB in the end (delta: 239.1 MB). Peak memory consumption was 239.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:23,043 INFO L168 Benchmark]: Witness Printer took 59.79 ms. Allocated memory is still 1.1 GB. Free memory was 817.7 MB in the beginning and 810.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:23,046 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 547.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 348.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2105.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 817.7 MB in the end (delta: 239.1 MB). Peak memory consumption was 239.1 MB. Max. memory is 11.5 GB. * Witness Printer took 59.79 ms. Allocated memory is still 1.1 GB. Free memory was 817.7 MB in the beginning and 810.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 329 SDtfs, 349 SDslu, 773 SDs, 0 SdLazy, 88 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 12498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...