./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe014_pso.opt.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/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/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 5df070efa3a992fa265dc011f5f5f8dcc668cbc7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:17:12,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:17:12,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:17:12,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:17:12,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:17:12,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:17:12,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:17:12,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:17:12,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:17:12,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:17:12,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:17:12,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:17:12,543 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:17:12,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:17:12,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:17:12,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:17:12,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:17:12,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:17:12,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:17:12,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:17:12,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:17:12,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:17:12,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:17:12,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:17:12,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:17:12,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:17:12,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:17:12,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:17:12,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:17:12,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:17:12,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:17:12,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:17:12,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:17:12,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:17:12,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:17:12,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:17:12,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:17:12,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:17:12,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:17:12,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:17:12,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:17:12,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:17:12,599 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:17:12,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:17:12,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:17:12,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:17:12,601 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:17:12,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:17:12,601 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:17:12,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:17:12,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:17:12,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:17:12,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:17:12,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:17:12,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:17:12,603 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:17:12,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:17:12,603 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:17:12,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:17:12,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:17:12,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:17:12,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:17:12,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:17:12,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:17:12,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:17:12,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:17:12,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:17:12,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:17:12,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:17:12,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:17:12,606 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_f39052c9-242b-457f-a92e-9777e3c938d9/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 -> 5df070efa3a992fa265dc011f5f5f8dcc668cbc7 [2019-11-15 23:17:12,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:17:12,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:17:12,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:17:12,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:17:12,646 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:17:12,646 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i [2019-11-15 23:17:12,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/data/b1e59d81c/56c6b48723b34f839fd7f292dfde8f74/FLAGa8aeccd0e [2019-11-15 23:17:13,175 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:17:13,175 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/sv-benchmarks/c/pthread-wmm/safe014_pso.opt.i [2019-11-15 23:17:13,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/data/b1e59d81c/56c6b48723b34f839fd7f292dfde8f74/FLAGa8aeccd0e [2019-11-15 23:17:13,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/data/b1e59d81c/56c6b48723b34f839fd7f292dfde8f74 [2019-11-15 23:17:13,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:17:13,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:17:13,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:17:13,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:17:13,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:17:13,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e562b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13, skipping insertion in model container [2019-11-15 23:17:13,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,216 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:17:13,258 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:17:13,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:17:13,680 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:17:13,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:17:13,784 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:17:13,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13 WrapperNode [2019-11-15 23:17:13,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:17:13,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:17:13,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:17:13,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:17:13,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:17:13,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:17:13,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:17:13,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:17:13,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... [2019-11-15 23:17:13,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:17:13,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:17:13,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:17:13,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:17:13,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/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 [2019-11-15 23:17:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:17:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 23:17:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:17:13,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:17:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 23:17:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 23:17:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 23:17:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 23:17:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 23:17:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 23:17:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 23:17:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:17:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:17:13,924 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 23:17:14,287 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:17:14,287 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:17:14,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:17:14 BoogieIcfgContainer [2019-11-15 23:17:14,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:17:14,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:17:14,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:17:14,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:17:14,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:17:13" (1/3) ... [2019-11-15 23:17:14,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b339c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:17:14, skipping insertion in model container [2019-11-15 23:17:14,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:17:13" (2/3) ... [2019-11-15 23:17:14,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b339c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:17:14, skipping insertion in model container [2019-11-15 23:17:14,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:17:14" (3/3) ... [2019-11-15 23:17:14,296 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2019-11-15 23:17:14,325 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,326 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,326 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,326 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,326 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,327 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,327 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,327 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,327 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,328 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,328 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,328 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,328 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,329 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,329 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,329 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,329 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,329 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:17:14,338 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 23:17:14,338 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:17:14,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:17:14,356 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:17:14,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:17:14,374 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:17:14,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:17:14,374 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:17:14,374 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:17:14,374 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:17:14,375 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:17:14,375 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:17:14,383 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 23:17:14,466 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 23:17:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 23:17:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:17:14,494 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:17:14,496 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] [2019-11-15 23:17:14,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:17:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:17:14,504 INFO L82 PathProgramCache]: Analyzing trace with hash 720223975, now seen corresponding path program 1 times [2019-11-15 23:17:14,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:17:14,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204329072] [2019-11-15 23:17:14,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:14,513 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:14,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:17:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:17:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:17:14,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204329072] [2019-11-15 23:17:14,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:17:14,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:17:14,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925394856] [2019-11-15 23:17:14,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:17:14,861 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:17:14,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:17:14,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:17:14,877 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 23:17:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:17:14,995 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 23:17:14,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:17:14,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 23:17:14,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:17:15,018 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 23:17:15,018 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 23:17:15,020 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 [2019-11-15 23:17:15,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 23:17:15,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 23:17:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 23:17:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 23:17:15,111 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 23:17:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:17:15,112 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 23:17:15,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:17:15,112 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 23:17:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:17:15,114 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:17:15,115 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] [2019-11-15 23:17:15,115 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:17:15,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:17:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash 850051549, now seen corresponding path program 1 times [2019-11-15 23:17:15,116 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:17:15,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569544330] [2019-11-15 23:17:15,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,116 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:17:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:17:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:17:15,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569544330] [2019-11-15 23:17:15,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:17:15,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:17:15,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846799689] [2019-11-15 23:17:15,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:17:15,234 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:17:15,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:17:15,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:17:15,234 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 23:17:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:17:15,322 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 23:17:15,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:17:15,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 23:17:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:17:15,329 INFO L225 Difference]: With dead ends: 600 [2019-11-15 23:17:15,329 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 23:17:15,330 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 [2019-11-15 23:17:15,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 23:17:15,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 23:17:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 23:17:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 23:17:15,357 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 23:17:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:17:15,358 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 23:17:15,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:17:15,358 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 23:17:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:17:15,360 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:17:15,360 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:17:15,361 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:17:15,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:17:15,361 INFO L82 PathProgramCache]: Analyzing trace with hash 760810605, now seen corresponding path program 1 times [2019-11-15 23:17:15,361 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:17:15,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585104838] [2019-11-15 23:17:15,362 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,362 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:17:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:17:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:17:15,489 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585104838] [2019-11-15 23:17:15,489 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:17:15,489 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:17:15,489 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664353884] [2019-11-15 23:17:15,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:17:15,490 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:17:15,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:17:15,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:17:15,491 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 23:17:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:17:15,606 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 23:17:15,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:17:15,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 23:17:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:17:15,610 INFO L225 Difference]: With dead ends: 402 [2019-11-15 23:17:15,610 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 23:17:15,611 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 [2019-11-15 23:17:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 23:17:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 23:17:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 23:17:15,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 23:17:15,641 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 23:17:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:17:15,642 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 23:17:15,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:17:15,642 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 23:17:15,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:17:15,644 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:17:15,644 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:17:15,644 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:17:15,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:17:15,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1355844928, now seen corresponding path program 1 times [2019-11-15 23:17:15,645 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:17:15,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602331601] [2019-11-15 23:17:15,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,646 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:15,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:17:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:17:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:17:15,857 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602331601] [2019-11-15 23:17:15,857 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:17:15,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:17:15,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348964603] [2019-11-15 23:17:15,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:17:15,859 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:17:15,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:17:15,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:17:15,859 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-11-15 23:17:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:17:16,123 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-11-15 23:17:16,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:17:16,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 23:17:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:17:16,126 INFO L225 Difference]: With dead ends: 681 [2019-11-15 23:17:16,126 INFO L226 Difference]: Without dead ends: 252 [2019-11-15 23:17:16,128 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:17:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-15 23:17:16,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-15 23:17:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-15 23:17:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-11-15 23:17:16,138 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-11-15 23:17:16,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:17:16,139 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-11-15 23:17:16,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:17:16,139 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-11-15 23:17:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:17:16,142 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:17:16,142 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:17:16,142 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:17:16,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:17:16,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1526745216, now seen corresponding path program 2 times [2019-11-15 23:17:16,143 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:17:16,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912723169] [2019-11-15 23:17:16,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:16,144 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:17:16,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:17:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:17:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:17:16,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912723169] [2019-11-15 23:17:16,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:17:16,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:17:16,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906836755] [2019-11-15 23:17:16,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:17:16,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:17:16,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:17:16,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:17:16,283 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 7 states. [2019-11-15 23:17:16,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:17:16,375 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-11-15 23:17:16,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:17:16,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 23:17:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:17:16,375 INFO L225 Difference]: With dead ends: 198 [2019-11-15 23:17:16,376 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:17:16,376 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:17:16,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:17:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:17:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:17:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:17:16,377 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 23:17:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:17:16,377 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:17:16,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:17:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:17:16,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:17:16,380 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 23:17:16,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:17:16 BasicIcfg [2019-11-15 23:17:16,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:17:16,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:17:16,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:17:16,384 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:17:16,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:17:14" (3/4) ... [2019-11-15 23:17:16,387 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:17:16,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 23:17:16,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 23:17:16,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 23:17:16,399 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 23:17:16,399 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:17:16,454 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f39052c9-242b-457f-a92e-9777e3c938d9/bin/uautomizer/witness.graphml [2019-11-15 23:17:16,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:17:16,462 INFO L168 Benchmark]: Toolchain (without parser) took 3259.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 940.8 MB in the beginning and 904.3 MB in the end (delta: 36.5 MB). Peak memory consumption was 203.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,463 INFO L168 Benchmark]: CDTParser took 0.23 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. [2019-11-15 23:17:16,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.33 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. [2019-11-15 23:17:16,465 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,465 INFO L168 Benchmark]: RCFGBuilder took 437.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,466 INFO L168 Benchmark]: TraceAbstraction took 2092.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 184.7 MB). Peak memory consumption was 184.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,471 INFO L168 Benchmark]: Witness Printer took 77.72 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 904.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:17:16,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 581.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.33 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 24.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 437.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2092.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 910.8 MB in the end (delta: 184.7 MB). Peak memory consumption was 184.7 MB. Max. memory is 11.5 GB. * Witness Printer took 77.72 ms. Allocated memory is still 1.2 GB. Free memory was 910.8 MB in the beginning and 904.3 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 218 SDtfs, 356 SDslu, 546 SDs, 0 SdLazy, 91 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...