./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe032_tso.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/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/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 fcb7bb0c4025aabc5961abdff8147f2083271270 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:55:12,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:12,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:12,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:12,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:12,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:12,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:12,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:12,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:12,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:12,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:12,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:12,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:12,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:12,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:12,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:12,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:12,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:12,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:12,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:12,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:12,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:12,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:12,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:12,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:12,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:12,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:12,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:12,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:12,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:12,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:12,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:12,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:12,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:12,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:12,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:12,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:12,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:12,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:12,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:12,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:12,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:12,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:12,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:12,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:12,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:12,587 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:12,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:12,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:12,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:12,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:12,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:12,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:12,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:12,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:12,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:12,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:12,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:12,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:12,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/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 -> fcb7bb0c4025aabc5961abdff8147f2083271270 [2019-10-22 08:55:12,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:12,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:12,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:12,626 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:12,626 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:12,627 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe032_tso.opt.i [2019-10-22 08:55:12,672 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/data/0fcb48a38/4dc1ab0cca4a443da9b808dccf853eea/FLAG79a9518b0 [2019-10-22 08:55:13,088 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:13,088 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/sv-benchmarks/c/pthread-wmm/safe032_tso.opt.i [2019-10-22 08:55:13,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/data/0fcb48a38/4dc1ab0cca4a443da9b808dccf853eea/FLAG79a9518b0 [2019-10-22 08:55:13,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/data/0fcb48a38/4dc1ab0cca4a443da9b808dccf853eea [2019-10-22 08:55:13,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:13,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:13,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:13,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:13,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:13,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cb7a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13, skipping insertion in model container [2019-10-22 08:55:13,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,135 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:13,167 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:13,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:13,594 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:13,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:13,695 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:13,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13 WrapperNode [2019-10-22 08:55:13,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:13,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:13,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:13,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:13,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:13,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:13,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:13,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:13,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... [2019-10-22 08:55:13,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:13,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:13,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:13,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:13,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:13,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:55:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:55:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:55:13,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:55:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:55:13,861 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:55:13,861 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:55:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:55:13,862 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:55:13,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:55:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:55:13,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:13,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:13,866 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:55:14,215 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:14,215 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:14,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:14 BoogieIcfgContainer [2019-10-22 08:55:14,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:14,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:14,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:14,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:14,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:13" (1/3) ... [2019-10-22 08:55:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328c950c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:14, skipping insertion in model container [2019-10-22 08:55:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:13" (2/3) ... [2019-10-22 08:55:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328c950c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:14, skipping insertion in model container [2019-10-22 08:55:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:14" (3/3) ... [2019-10-22 08:55:14,224 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2019-10-22 08:55:14,255 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,255 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,255 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,255 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,256 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,256 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,256 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,256 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,257 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,257 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,257 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,257 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,258 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,259 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,259 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,259 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,259 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,259 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,260 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,260 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,260 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,260 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,261 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,261 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,261 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:14,271 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:14,272 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:14,280 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:14,291 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:14,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:14,312 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:14,312 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:14,312 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:14,312 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:14,313 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:14,313 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:14,313 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:14,328 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 08:55:14,474 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 08:55:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 08:55:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:55:14,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:14,497 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:14,499 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:14,503 INFO L82 PathProgramCache]: Analyzing trace with hash 995279891, now seen corresponding path program 1 times [2019-10-22 08:55:14,509 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:14,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991834437] [2019-10-22 08:55:14,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:14,510 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:14,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:14,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991834437] [2019-10-22 08:55:14,863 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:14,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:55:14,864 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063602016] [2019-10-22 08:55:14,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:14,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:14,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:14,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:14,885 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 08:55:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:14,981 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 08:55:14,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:55:14,983 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:55:14,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:15,012 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 08:55:15,013 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 08:55:15,019 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 08:55:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 08:55:15,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 08:55:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 08:55:15,187 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 08:55:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:15,188 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 08:55:15,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:55:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 08:55:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:55:15,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:15,196 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:15,200 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:15,201 INFO L82 PathProgramCache]: Analyzing trace with hash 709609587, now seen corresponding path program 1 times [2019-10-22 08:55:15,201 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:15,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662600548] [2019-10-22 08:55:15,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,201 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:15,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662600548] [2019-10-22 08:55:15,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:15,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:15,310 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26016625] [2019-10-22 08:55:15,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:15,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:15,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:15,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:15,313 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 08:55:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:15,386 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 08:55:15,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:15,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:55:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:15,392 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 08:55:15,392 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 08:55:15,393 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 08:55:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 08:55:15,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 08:55:15,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 08:55:15,426 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 08:55:15,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:15,426 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 08:55:15,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:15,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 08:55:15,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:55:15,429 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:15,429 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:15,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:15,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:15,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1535576563, now seen corresponding path program 1 times [2019-10-22 08:55:15,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:15,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560416479] [2019-10-22 08:55:15,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,430 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:15,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560416479] [2019-10-22 08:55:15,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:15,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:15,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756368031] [2019-10-22 08:55:15,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:15,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:15,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:15,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:15,550 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 08:55:15,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:15,642 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 08:55:15,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:15,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:55:15,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:15,647 INFO L225 Difference]: With dead ends: 819 [2019-10-22 08:55:15,648 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 08:55:15,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 08:55:15,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 08:55:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 08:55:15,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 08:55:15,672 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 08:55:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:15,673 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 08:55:15,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 08:55:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:15,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:15,675 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:15,675 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:15,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:15,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1711246699, now seen corresponding path program 1 times [2019-10-22 08:55:15,676 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:15,676 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756966715] [2019-10-22 08:55:15,676 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,677 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:15,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756966715] [2019-10-22 08:55:15,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:15,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:15,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515773376] [2019-10-22 08:55:15,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:15,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:15,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:15,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:15,813 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 08:55:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:15,895 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-10-22 08:55:15,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:15,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 08:55:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:15,899 INFO L225 Difference]: With dead ends: 1107 [2019-10-22 08:55:15,899 INFO L226 Difference]: Without dead ends: 591 [2019-10-22 08:55:15,899 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:15,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-22 08:55:15,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-22 08:55:15,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-22 08:55:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-10-22 08:55:15,918 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-10-22 08:55:15,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:15,918 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-10-22 08:55:15,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:15,918 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-10-22 08:55:15,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:55:15,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:15,920 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:15,920 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:15,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:15,921 INFO L82 PathProgramCache]: Analyzing trace with hash 299785013, now seen corresponding path program 2 times [2019-10-22 08:55:15,921 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:15,921 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547680570] [2019-10-22 08:55:15,921 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:15,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:55:16,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547680570] [2019-10-22 08:55:16,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:16,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:55:16,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531793486] [2019-10-22 08:55:16,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:55:16,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:16,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:55:16,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:16,061 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2019-10-22 08:55:16,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:16,368 INFO L93 Difference]: Finished difference Result 863 states and 2562 transitions. [2019-10-22 08:55:16,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 08:55:16,368 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 08:55:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:16,370 INFO L225 Difference]: With dead ends: 863 [2019-10-22 08:55:16,371 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:16,371 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-22 08:55:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:16,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:16,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:55:16,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:16,372 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:16,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:55:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:16,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:16,380 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:16,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:16 BasicIcfg [2019-10-22 08:55:16,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:16,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:16,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:16,382 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:16,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:14" (3/4) ... [2019-10-22 08:55:16,388 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:16,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:55:16,395 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:55:16,395 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:55:16,399 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:55:16,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:16,442 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee813a8e-395e-4f3e-9f47-74144bca8bc0/bin/uautomizer/witness.graphml [2019-10-22 08:55:16,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:16,447 INFO L168 Benchmark]: Toolchain (without parser) took 3326.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:16,448 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:16,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:16,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:16,449 INFO L168 Benchmark]: Boogie Preprocessor took 40.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:16,450 INFO L168 Benchmark]: RCFGBuilder took 430.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:16,452 INFO L168 Benchmark]: TraceAbstraction took 2164.12 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). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:16,454 INFO L168 Benchmark]: Witness Printer took 63.31 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:16,456 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 575.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.83 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 40.98 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 430.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2164.12 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). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 63.31 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: 7.0 MB). Peak memory consumption was 7.0 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 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 372 SDslu, 619 SDs, 0 SdLazy, 80 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 12137 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...