./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/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 d3e49e3891d31f6170ff34f5752f1af152c09e3e ........................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:54:58,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:58,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:58,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:58,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:58,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:58,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:58,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:58,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:58,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:58,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:58,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:58,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:58,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:58,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:58,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:58,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:58,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:58,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:58,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:58,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:58,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:58,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:58,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:58,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:58,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:58,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:58,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:58,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:58,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:58,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:58,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:58,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:58,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:58,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:58,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:58,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:58,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:58,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:58,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:58,698 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:58,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:58,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:58,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:58,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:58,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:58,722 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:58,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:58,722 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:58,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:58,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:58,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:58,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:58,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:58,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:58,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:58,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:58,724 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:58,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:58,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:58,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:58,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:58,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:58,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:58,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:58,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:58,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:58,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:58,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:58,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:58,728 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_4365d05c-14d7-4dfb-8c1b-f74029829fa7/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 -> d3e49e3891d31f6170ff34f5752f1af152c09e3e [2019-10-22 08:54:58,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:58,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:58,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:58,779 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:58,779 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:58,780 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2019-10-22 08:54:58,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/data/b0d14b4cd/91414f866b46496db114404b24a67556/FLAGeb12e2c1a [2019-10-22 08:54:59,271 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:59,272 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2019-10-22 08:54:59,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/data/b0d14b4cd/91414f866b46496db114404b24a67556/FLAGeb12e2c1a [2019-10-22 08:54:59,295 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/data/b0d14b4cd/91414f866b46496db114404b24a67556 [2019-10-22 08:54:59,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:59,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:59,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:59,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:59,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:59,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea50d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59, skipping insertion in model container [2019-10-22 08:54:59,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,314 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:59,354 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:59,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:59,734 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:59,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:59,844 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:59,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59 WrapperNode [2019-10-22 08:54:59,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:59,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:59,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:59,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:59,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:59,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:59,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:59,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:59,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:59,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:59,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:59,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:59,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/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 08:54:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:54:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:54:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:54:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:54:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:54:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:54:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:54:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:54:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:54:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:59,958 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 08:55:00,272 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:00,273 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:55:00,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:00 BoogieIcfgContainer [2019-10-22 08:55:00,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:00,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:00,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:00,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:00,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:59" (1/3) ... [2019-10-22 08:55:00,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecff91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:00, skipping insertion in model container [2019-10-22 08:55:00,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (2/3) ... [2019-10-22 08:55:00,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecff91c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:00, skipping insertion in model container [2019-10-22 08:55:00,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:00" (3/3) ... [2019-10-22 08:55:00,281 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2019-10-22 08:55:00,314 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,314 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,314 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,314 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,315 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,315 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,315 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,317 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,318 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,318 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,318 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,318 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,318 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,319 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,319 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,319 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,319 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,319 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:55:00,333 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:55:00,333 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:00,342 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:00,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:00,373 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:00,374 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:00,374 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:00,375 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:00,375 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:00,376 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:00,376 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:00,376 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:00,385 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 41 transitions [2019-10-22 08:55:00,437 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 433 states. [2019-10-22 08:55:00,439 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states. [2019-10-22 08:55:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:55:00,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:00,448 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:00,450 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:00,455 INFO L82 PathProgramCache]: Analyzing trace with hash 443431605, now seen corresponding path program 1 times [2019-10-22 08:55:00,462 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:00,462 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010332999] [2019-10-22 08:55:00,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:00,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:00,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:00,790 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 08:55:00,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010332999] [2019-10-22 08:55:00,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:00,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:00,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676759262] [2019-10-22 08:55:00,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:00,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:00,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:00,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:00,813 INFO L87 Difference]: Start difference. First operand 433 states. Second operand 5 states. [2019-10-22 08:55:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:00,888 INFO L93 Difference]: Finished difference Result 443 states and 1060 transitions. [2019-10-22 08:55:00,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:00,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-10-22 08:55:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:00,903 INFO L225 Difference]: With dead ends: 443 [2019-10-22 08:55:00,907 INFO L226 Difference]: Without dead ends: 226 [2019-10-22 08:55:00,909 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:55:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-10-22 08:55:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2019-10-22 08:55:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-22 08:55:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 523 transitions. [2019-10-22 08:55:01,020 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 523 transitions. Word has length 24 [2019-10-22 08:55:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:01,020 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 523 transitions. [2019-10-22 08:55:01,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:01,021 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 523 transitions. [2019-10-22 08:55:01,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:55:01,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:01,022 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] [2019-10-22 08:55:01,023 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:01,023 INFO L82 PathProgramCache]: Analyzing trace with hash -2125267477, now seen corresponding path program 1 times [2019-10-22 08:55:01,023 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:01,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114870703] [2019-10-22 08:55:01,023 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,024 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:01,171 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 08:55:01,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114870703] [2019-10-22 08:55:01,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:01,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:55:01,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933631892] [2019-10-22 08:55:01,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:55:01,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:01,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:55:01,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:55:01,174 INFO L87 Difference]: Start difference. First operand 226 states and 523 transitions. Second operand 5 states. [2019-10-22 08:55:01,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:01,223 INFO L93 Difference]: Finished difference Result 194 states and 415 transitions. [2019-10-22 08:55:01,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:01,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 08:55:01,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:01,225 INFO L225 Difference]: With dead ends: 194 [2019-10-22 08:55:01,225 INFO L226 Difference]: Without dead ends: 170 [2019-10-22 08:55:01,226 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 08:55:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-10-22 08:55:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2019-10-22 08:55:01,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-10-22 08:55:01,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 369 transitions. [2019-10-22 08:55:01,244 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 369 transitions. Word has length 25 [2019-10-22 08:55:01,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:01,244 INFO L462 AbstractCegarLoop]: Abstraction has 170 states and 369 transitions. [2019-10-22 08:55:01,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:55:01,245 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 369 transitions. [2019-10-22 08:55:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:55:01,252 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:01,252 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] [2019-10-22 08:55:01,254 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:01,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:01,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1558891911, now seen corresponding path program 1 times [2019-10-22 08:55:01,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:01,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111631698] [2019-10-22 08:55:01,254 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:01,398 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 08:55:01,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111631698] [2019-10-22 08:55:01,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:01,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:55:01,399 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151744474] [2019-10-22 08:55:01,399 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:55:01,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:01,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:55:01,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:55:01,400 INFO L87 Difference]: Start difference. First operand 170 states and 369 transitions. Second operand 6 states. [2019-10-22 08:55:01,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:01,477 INFO L93 Difference]: Finished difference Result 266 states and 593 transitions. [2019-10-22 08:55:01,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:55:01,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-10-22 08:55:01,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:01,479 INFO L225 Difference]: With dead ends: 266 [2019-10-22 08:55:01,479 INFO L226 Difference]: Without dead ends: 150 [2019-10-22 08:55:01,480 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:55:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-10-22 08:55:01,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-10-22 08:55:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-10-22 08:55:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 329 transitions. [2019-10-22 08:55:01,491 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 329 transitions. Word has length 26 [2019-10-22 08:55:01,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:01,492 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 329 transitions. [2019-10-22 08:55:01,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:55:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 329 transitions. [2019-10-22 08:55:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:55:01,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:01,493 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] [2019-10-22 08:55:01,493 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:01,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:01,493 INFO L82 PathProgramCache]: Analyzing trace with hash 336031801, now seen corresponding path program 2 times [2019-10-22 08:55:01,494 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:01,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790444464] [2019-10-22 08:55:01,494 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,494 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:01,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:01,601 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 08:55:01,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790444464] [2019-10-22 08:55:01,601 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:01,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:55:01,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159135119] [2019-10-22 08:55:01,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:55:01,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:01,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:55:01,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:55:01,602 INFO L87 Difference]: Start difference. First operand 150 states and 329 transitions. Second operand 8 states. [2019-10-22 08:55:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:55:01,675 INFO L93 Difference]: Finished difference Result 118 states and 249 transitions. [2019-10-22 08:55:01,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:55:01,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-10-22 08:55:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:55:01,676 INFO L225 Difference]: With dead ends: 118 [2019-10-22 08:55:01,676 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:55:01,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:55:01,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:55:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:55:01,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:55:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:55:01,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-22 08:55:01,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:55:01,677 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:55:01,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:55:01,678 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:55:01,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:55:01,681 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:55:01,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:01 BasicIcfg [2019-10-22 08:55:01,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:01,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:01,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:01,683 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:01,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:00" (3/4) ... [2019-10-22 08:55:01,687 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:55:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:55:01,693 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:55:01,696 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 08:55:01,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:55:01,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4365d05c-14d7-4dfb-8c1b-f74029829fa7/bin/uautomizer/witness.graphml [2019-10-22 08:55:01,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:01,733 INFO L168 Benchmark]: Toolchain (without parser) took 2433.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 983.9 MB in the end (delta: -44.6 MB). Peak memory consumption was 122.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:01,733 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:01,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:01,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.46 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 08:55:01,734 INFO L168 Benchmark]: Boogie Preprocessor took 17.47 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 08:55:01,735 INFO L168 Benchmark]: RCFGBuilder took 373.12 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:01,735 INFO L168 Benchmark]: TraceAbstraction took 1407.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:01,736 INFO L168 Benchmark]: Witness Printer took 48.37 ms. Allocated memory is still 1.2 GB. Free memory was 990.8 MB in the beginning and 983.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:01,738 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.46 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 17.47 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 373.12 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1407.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.37 ms. Allocated memory is still 1.2 GB. Free memory was 990.8 MB in the beginning and 983.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 168 SDslu, 375 SDs, 0 SdLazy, 54 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=433occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 7903 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...