./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/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 a0c4b02bc25104859076c6cd72166b3ed67280db ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:36:33,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:36:33,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:36:33,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:36:33,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:36:33,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:36:33,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:36:33,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:36:33,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:36:33,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:36:33,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:36:33,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:36:33,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:36:33,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:36:33,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:36:33,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:36:33,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:36:33,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:36:33,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:36:33,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:36:33,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:36:33,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:36:33,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:36:33,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:36:33,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:36:33,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:36:33,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:36:33,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:36:33,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:36:33,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:36:33,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:36:33,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:36:33,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:36:33,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:36:33,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:36:33,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:36:33,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:36:33,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:36:33,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:36:33,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:36:33,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:36:33,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:36:33,850 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:36:33,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:36:33,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:36:33,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:36:33,852 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:36:33,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:36:33,852 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:36:33,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:36:33,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:36:33,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:36:33,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:36:33,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:36:33,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:36:33,854 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:36:33,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:36:33,854 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:36:33,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:36:33,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:36:33,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:36:33,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:36:33,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:36:33,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:36:33,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:36:33,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:36:33,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:36:33,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:36:33,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:36:33,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:36:33,857 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/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/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 -> a0c4b02bc25104859076c6cd72166b3ed67280db [2019-11-20 05:36:34,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:36:34,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:36:34,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:36:34,053 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:36:34,053 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:36:34,055 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-20 05:36:34,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/data/b36f5a861/760501b2695747fb9c989182dadc1d09/FLAGc1f7a4f73 [2019-11-20 05:36:34,606 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:36:34,607 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/sv-benchmarks/c/pthread-wmm/safe003_tso.opt.i [2019-11-20 05:36:34,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/data/b36f5a861/760501b2695747fb9c989182dadc1d09/FLAGc1f7a4f73 [2019-11-20 05:36:34,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/data/b36f5a861/760501b2695747fb9c989182dadc1d09 [2019-11-20 05:36:34,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:36:34,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:36:34,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:34,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:36:34,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:36:34,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:34" (1/1) ... [2019-11-20 05:36:34,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd987fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:34, skipping insertion in model container [2019-11-20 05:36:34,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:34" (1/1) ... [2019-11-20 05:36:34,959 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:36:35,003 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:36:35,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:35,471 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:36:35,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:35,604 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:36:35,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35 WrapperNode [2019-11-20 05:36:35,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:35,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:35,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:36:35,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:36:35,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:35,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:36:35,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:36:35,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:36:35,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... [2019-11-20 05:36:35,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:36:35,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:36:35,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:36:35,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:36:35,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/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 [2019-11-20 05:36:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 05:36:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 05:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 05:36:35,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 05:36:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 05:36:35,739 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 05:36:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 05:36:35,739 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 05:36:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 05:36:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:36:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:36:35,746 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 05:36:36,113 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:36:36,113 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 05:36:36,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36 BoogieIcfgContainer [2019-11-20 05:36:36,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:36:36,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:36:36,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:36:36,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:36:36,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:36:34" (1/3) ... [2019-11-20 05:36:36,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e29440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:36, skipping insertion in model container [2019-11-20 05:36:36,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:35" (2/3) ... [2019-11-20 05:36:36,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e29440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:36:36, skipping insertion in model container [2019-11-20 05:36:36,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36" (3/3) ... [2019-11-20 05:36:36,121 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2019-11-20 05:36:36,166 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,167 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,167 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,168 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,168 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,168 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,169 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,170 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,170 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,171 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,171 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,172 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,172 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,173 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,173 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,174 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,174 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,174 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,174 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,174 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,175 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,175 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,176 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,177 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,177 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,177 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,177 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,178 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,178 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,178 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,178 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,178 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,179 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 05:36:36,220 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 05:36:36,220 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:36:36,225 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:36:36,234 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:36:36,251 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:36:36,251 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:36:36,251 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:36:36,251 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:36:36,251 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:36:36,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:36:36,252 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:36:36,252 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:36:36,263 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-20 05:36:39,593 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-20 05:36:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-20 05:36:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 05:36:39,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:36:39,651 INFO L410 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] [2019-11-20 05:36:39,651 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:36:39,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:39,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1461473904, now seen corresponding path program 1 times [2019-11-20 05:36:39,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:39,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550126745] [2019-11-20 05:36:39,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:40,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550126745] [2019-11-20 05:36:40,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:40,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 05:36:40,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407917639] [2019-11-20 05:36:40,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 05:36:40,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:40,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 05:36:40,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 05:36:40,048 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-20 05:36:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:40,471 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-20 05:36:40,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:36:40,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 05:36:40,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:36:40,629 INFO L225 Difference]: With dead ends: 33013 [2019-11-20 05:36:40,629 INFO L226 Difference]: Without dead ends: 14275 [2019-11-20 05:36:40,630 INFO L630 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 [2019-11-20 05:36:40,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 05:36:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 05:36:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 05:36:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 05:36:41,617 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 05:36:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:36:41,619 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 05:36:41,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 05:36:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 05:36:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 05:36:41,645 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:36:41,645 INFO L410 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] [2019-11-20 05:36:41,646 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:36:41,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:41,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1937445345, now seen corresponding path program 1 times [2019-11-20 05:36:41,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:41,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050631047] [2019-11-20 05:36:41,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:41,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050631047] [2019-11-20 05:36:41,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:41,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 05:36:41,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875563054] [2019-11-20 05:36:41,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 05:36:41,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:41,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:36:41,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:36:41,801 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 05:36:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:42,069 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 05:36:42,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:36:42,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 05:36:42,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:36:42,125 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 05:36:42,125 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 05:36:42,126 INFO L630 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 [2019-11-20 05:36:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 05:36:42,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 05:36:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 05:36:42,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 05:36:42,511 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 05:36:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:36:42,512 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 05:36:42,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 05:36:42,512 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 05:36:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 05:36:42,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:36:42,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:42,541 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:36:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:42,541 INFO L82 PathProgramCache]: Analyzing trace with hash -2069525798, now seen corresponding path program 1 times [2019-11-20 05:36:42,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:42,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567596805] [2019-11-20 05:36:42,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:42,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567596805] [2019-11-20 05:36:42,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:42,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 05:36:42,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477022002] [2019-11-20 05:36:42,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 05:36:42,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:42,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 05:36:42,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:36:42,818 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 05:36:43,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:43,020 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 05:36:43,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 05:36:43,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 05:36:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:36:43,041 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 05:36:43,041 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 05:36:43,042 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:36:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 05:36:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 05:36:43,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 05:36:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 05:36:43,233 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 05:36:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:36:43,233 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 05:36:43,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 05:36:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 05:36:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 05:36:43,244 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:36:43,244 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:36:43,245 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:36:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash 324108982, now seen corresponding path program 1 times [2019-11-20 05:36:43,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:36:43,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183991051] [2019-11-20 05:36:43,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:36:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:43,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183991051] [2019-11-20 05:36:43,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:36:43,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 05:36:43,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178801191] [2019-11-20 05:36:43,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 05:36:43,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:36:43,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 05:36:43,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:36:43,647 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 8 states. [2019-11-20 05:36:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:36:43,920 INFO L93 Difference]: Finished difference Result 10954 states and 30555 transitions. [2019-11-20 05:36:43,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 05:36:43,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 05:36:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:36:43,921 INFO L225 Difference]: With dead ends: 10954 [2019-11-20 05:36:43,921 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:36:43,922 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-20 05:36:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:36:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:36:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:36:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:36:43,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 05:36:43,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:36:43,924 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:36:43,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 05:36:43,924 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:36:43,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:36:43,927 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 05:36:43,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:36:43 BasicIcfg [2019-11-20 05:36:43,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:36:43,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:36:43,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:36:43,932 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:36:43,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:36" (3/4) ... [2019-11-20 05:36:43,937 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:36:43,957 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 05:36:43,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 05:36:43,970 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 05:36:43,974 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 05:36:43,974 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 05:36:43,974 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 05:36:44,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_742692aa-1f31-471b-92fc-09b849ec84ce/bin/uautomizer/witness.graphml [2019-11-20 05:36:44,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:36:44,031 INFO L168 Benchmark]: Toolchain (without parser) took 9086.12 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 634.9 MB). Free memory was 944.8 MB in the beginning and 1.4 GB in the end (delta: -435.0 MB). Peak memory consumption was 200.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:44,034 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:36:44,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:44,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.96 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. [2019-11-20 05:36:44,036 INFO L168 Benchmark]: Boogie Preprocessor took 24.94 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. [2019-11-20 05:36:44,036 INFO L168 Benchmark]: RCFGBuilder took 438.30 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:44,037 INFO L168 Benchmark]: TraceAbstraction took 7815.96 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 510.7 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -323.4 MB). Peak memory consumption was 187.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:44,037 INFO L168 Benchmark]: Witness Printer took 97.19 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:44,044 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 660.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.96 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 24.94 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 438.30 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: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7815.96 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 510.7 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -323.4 MB). Peak memory consumption was 187.3 MB. Max. memory is 11.5 GB. * Witness Printer took 97.19 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 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 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 7.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 668 SDslu, 753 SDs, 0 SdLazy, 134 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred 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: 1.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 12234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...