./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/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 6e5d4029f581c462fcc1266ae50a944afe6a64c5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:27:23,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:27:23,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:27:23,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:27:23,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:27:23,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:27:23,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:27:23,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:27:23,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:27:23,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:27:23,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:27:23,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:27:23,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:27:23,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:27:23,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:27:23,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:27:23,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:27:23,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:27:23,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:27:23,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:27:23,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:27:23,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:27:23,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:27:23,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:27:23,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:27:23,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:27:23,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:27:23,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:27:23,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:27:23,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:27:23,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:27:23,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:27:23,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:27:23,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:27:23,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:27:23,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:27:23,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:27:23,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:27:23,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:27:23,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:27:23,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:27:23,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:27:23,615 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:27:23,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:27:23,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:27:23,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:27:23,616 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:27:23,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:27:23,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:27:23,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:27:23,618 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:27:23,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:27:23,618 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:27:23,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:27:23,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:27:23,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:27:23,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:27:23,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:27:23,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:27:23,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:27:23,620 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/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 -> 6e5d4029f581c462fcc1266ae50a944afe6a64c5 [2019-12-07 17:27:23,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:27:23,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:27:23,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:27:23,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:27:23,732 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:27:23,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i [2019-12-07 17:27:23,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/data/07cb3cc7b/f582ab8b7e8047239a0726397a418dc1/FLAG2cb21df8c [2019-12-07 17:27:24,148 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:27:24,148 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/sv-benchmarks/c/pthread-wmm/thin002_tso.opt.i [2019-12-07 17:27:24,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/data/07cb3cc7b/f582ab8b7e8047239a0726397a418dc1/FLAG2cb21df8c [2019-12-07 17:27:24,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/data/07cb3cc7b/f582ab8b7e8047239a0726397a418dc1 [2019-12-07 17:27:24,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:27:24,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:27:24,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:27:24,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:27:24,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:27:24,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c131985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24, skipping insertion in model container [2019-12-07 17:27:24,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:27:24,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:27:24,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:27:24,465 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:27:24,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:27:24,543 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:27:24,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24 WrapperNode [2019-12-07 17:27:24,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:27:24,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:27:24,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:27:24,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:27:24,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:27:24,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:27:24,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:27:24,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:27:24,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... [2019-12-07 17:27:24,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:27:24,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:27:24,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:27:24,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:27:24,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/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 [2019-12-07 17:27:24,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 17:27:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 17:27:24,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 17:27:24,641 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 17:27:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 17:27:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-07 17:27:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-07 17:27:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 17:27:24,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:27:24,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:27:24,644 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 17:27:24,842 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:27:24,842 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 17:27:24,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:27:24 BoogieIcfgContainer [2019-12-07 17:27:24,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:27:24,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:27:24,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:27:24,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:27:24,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:27:24" (1/3) ... [2019-12-07 17:27:24,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9d151a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:27:24, skipping insertion in model container [2019-12-07 17:27:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:27:24" (2/3) ... [2019-12-07 17:27:24,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9d151a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:27:24, skipping insertion in model container [2019-12-07 17:27:24,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:27:24" (3/3) ... [2019-12-07 17:27:24,847 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.opt.i [2019-12-07 17:27:24,853 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 17:27:24,854 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:27:24,858 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:27:24,858 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 17:27:24,876 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,876 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,876 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,877 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,879 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:27:24,893 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-07 17:27:24,905 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:27:24,905 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:27:24,905 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:27:24,905 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:27:24,905 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:27:24,905 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:27:24,906 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:27:24,906 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:27:24,914 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions [2019-12-07 17:27:24,915 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-12-07 17:27:24,943 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-12-07 17:27:24,943 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 17:27:24,947 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-07 17:27:24,949 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions [2019-12-07 17:27:24,961 INFO L134 PetriNetUnfolder]: 1/63 cut-off events. [2019-12-07 17:27:24,961 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 17:27:24,962 INFO L76 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 1/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 29 event pairs. 12/73 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-07 17:27:24,963 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-07 17:27:24,964 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 17:27:25,826 INFO L206 etLargeBlockEncoding]: Checked pairs total: 723 [2019-12-07 17:27:25,827 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2019-12-07 17:27:25,830 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 21 transitions [2019-12-07 17:27:25,852 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 110 states. [2019-12-07 17:27:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2019-12-07 17:27:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 17:27:25,860 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:25,860 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:25,860 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:25,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:25,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1014881653, now seen corresponding path program 1 times [2019-12-07 17:27:25,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:25,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540333451] [2019-12-07 17:27:25,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,047 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540333451] [2019-12-07 17:27:26,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:27:26,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540359598] [2019-12-07 17:27:26,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:27:26,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:27:26,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:27:26,063 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 3 states. [2019-12-07 17:27:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,087 INFO L93 Difference]: Finished difference Result 102 states and 260 transitions. [2019-12-07 17:27:26,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:27:26,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-07 17:27:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,099 INFO L225 Difference]: With dead ends: 102 [2019-12-07 17:27:26,100 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 17:27:26,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:27:26,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 17:27:26,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-07 17:27:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 17:27:26,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-07 17:27:26,130 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-07 17:27:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,131 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-07 17:27:26,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:27:26,131 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-07 17:27:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 17:27:26,132 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,132 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,133 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1396559942, now seen corresponding path program 1 times [2019-12-07 17:27:26,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430040415] [2019-12-07 17:27:26,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,196 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430040415] [2019-12-07 17:27:26,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:27:26,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169645452] [2019-12-07 17:27:26,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:27:26,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:27:26,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:27:26,198 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 3 states. [2019-12-07 17:27:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,203 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-12-07 17:27:26,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:27:26,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 17:27:26,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,205 INFO L225 Difference]: With dead ends: 66 [2019-12-07 17:27:26,205 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 17:27:26,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:27:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 17:27:26,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-12-07 17:27:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 17:27:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-12-07 17:27:26,211 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-12-07 17:27:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,211 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-12-07 17:27:26,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:27:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-12-07 17:27:26,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 17:27:26,212 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,212 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,213 INFO L82 PathProgramCache]: Analyzing trace with hash 343681169, now seen corresponding path program 1 times [2019-12-07 17:27:26,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508941761] [2019-12-07 17:27:26,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508941761] [2019-12-07 17:27:26,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:27:26,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029896328] [2019-12-07 17:27:26,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:27:26,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:27:26,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:27:26,269 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 5 states. [2019-12-07 17:27:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,292 INFO L93 Difference]: Finished difference Result 72 states and 159 transitions. [2019-12-07 17:27:26,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:27:26,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-12-07 17:27:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,293 INFO L225 Difference]: With dead ends: 72 [2019-12-07 17:27:26,293 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 17:27:26,294 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:27:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 17:27:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-07 17:27:26,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 17:27:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 119 transitions. [2019-12-07 17:27:26,300 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 119 transitions. Word has length 12 [2019-12-07 17:27:26,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,300 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 119 transitions. [2019-12-07 17:27:26,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:27:26,300 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 119 transitions. [2019-12-07 17:27:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 17:27:26,301 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,301 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,301 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1159720466, now seen corresponding path program 1 times [2019-12-07 17:27:26,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464188658] [2019-12-07 17:27:26,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464188658] [2019-12-07 17:27:26,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:27:26,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192733850] [2019-12-07 17:27:26,356 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:27:26,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:27:26,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:27:26,357 INFO L87 Difference]: Start difference. First operand 56 states and 119 transitions. Second operand 4 states. [2019-12-07 17:27:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,368 INFO L93 Difference]: Finished difference Result 55 states and 117 transitions. [2019-12-07 17:27:26,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:27:26,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 17:27:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,369 INFO L225 Difference]: With dead ends: 55 [2019-12-07 17:27:26,370 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 17:27:26,370 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:27:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 17:27:26,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-12-07 17:27:26,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 17:27:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 117 transitions. [2019-12-07 17:27:26,373 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 117 transitions. Word has length 13 [2019-12-07 17:27:26,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,374 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 117 transitions. [2019-12-07 17:27:26,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:27:26,374 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 117 transitions. [2019-12-07 17:27:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 17:27:26,374 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,375 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,375 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1591594888, now seen corresponding path program 1 times [2019-12-07 17:27:26,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504844749] [2019-12-07 17:27:26,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504844749] [2019-12-07 17:27:26,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:27:26,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011291568] [2019-12-07 17:27:26,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:27:26,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:27:26,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:27:26,428 INFO L87 Difference]: Start difference. First operand 55 states and 117 transitions. Second operand 5 states. [2019-12-07 17:27:26,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,444 INFO L93 Difference]: Finished difference Result 67 states and 135 transitions. [2019-12-07 17:27:26,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:27:26,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 17:27:26,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,445 INFO L225 Difference]: With dead ends: 67 [2019-12-07 17:27:26,445 INFO L226 Difference]: Without dead ends: 43 [2019-12-07 17:27:26,445 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:27:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-12-07 17:27:26,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-12-07 17:27:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-12-07 17:27:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 79 transitions. [2019-12-07 17:27:26,449 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 79 transitions. Word has length 14 [2019-12-07 17:27:26,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,449 INFO L462 AbstractCegarLoop]: Abstraction has 43 states and 79 transitions. [2019-12-07 17:27:26,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:27:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 79 transitions. [2019-12-07 17:27:26,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 17:27:26,450 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,450 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,451 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,451 INFO L82 PathProgramCache]: Analyzing trace with hash -432128726, now seen corresponding path program 2 times [2019-12-07 17:27:26,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591632975] [2019-12-07 17:27:26,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591632975] [2019-12-07 17:27:26,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:27:26,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638077674] [2019-12-07 17:27:26,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:27:26,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:27:26,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:27:26,500 INFO L87 Difference]: Start difference. First operand 43 states and 79 transitions. Second operand 5 states. [2019-12-07 17:27:26,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,514 INFO L93 Difference]: Finished difference Result 45 states and 80 transitions. [2019-12-07 17:27:26,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:27:26,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 17:27:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,515 INFO L225 Difference]: With dead ends: 45 [2019-12-07 17:27:26,515 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 17:27:26,516 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:27:26,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 17:27:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 17:27:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 17:27:26,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-07 17:27:26,518 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 14 [2019-12-07 17:27:26,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,518 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-07 17:27:26,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:27:26,518 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-07 17:27:26,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 17:27:26,518 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:27:26,519 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:27:26,519 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:27:26,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:27:26,519 INFO L82 PathProgramCache]: Analyzing trace with hash -431612576, now seen corresponding path program 3 times [2019-12-07 17:27:26,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:27:26,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946180066] [2019-12-07 17:27:26,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:27:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:27:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:27:26,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946180066] [2019-12-07 17:27:26,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:27:26,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:27:26,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810546332] [2019-12-07 17:27:26,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:27:26,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:27:26,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:27:26,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:27:26,567 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 5 states. [2019-12-07 17:27:26,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:27:26,577 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-12-07 17:27:26,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:27:26,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2019-12-07 17:27:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:27:26,578 INFO L225 Difference]: With dead ends: 24 [2019-12-07 17:27:26,578 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:27:26,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:27:26,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:27:26,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:27:26,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:27:26,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:27:26,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 17:27:26,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:27:26,579 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:27:26,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:27:26,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:27:26,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:27:26,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:27:26 BasicIcfg [2019-12-07 17:27:26,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:27:26,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:27:26,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:27:26,582 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:27:26,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:27:24" (3/4) ... [2019-12-07 17:27:26,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:27:26,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 17:27:26,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 17:27:26,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 17:27:26,589 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-12-07 17:27:26,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 17:27:26,594 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:27:26,594 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 17:27:26,633 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c0379e6a-b2df-4ac4-ae8e-c162debafc8a/bin/uautomizer/witness.graphml [2019-12-07 17:27:26,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:27:26,635 INFO L168 Benchmark]: Toolchain (without parser) took 2465.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 940.9 MB in the beginning and 989.0 MB in the end (delta: -48.2 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,635 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:27:26,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:27:26,636 INFO L168 Benchmark]: Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,636 INFO L168 Benchmark]: RCFGBuilder took 248.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,637 INFO L168 Benchmark]: TraceAbstraction took 1738.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 996.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,637 INFO L168 Benchmark]: Witness Printer took 51.54 ms. Allocated memory is still 1.1 GB. Free memory was 996.0 MB in the beginning and 989.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:27:26,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 374.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1738.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 996.0 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.54 ms. Allocated memory is still 1.1 GB. Free memory was 996.0 MB in the beginning and 989.0 MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.9s, 79 ProgramPointsBefore, 28 ProgramPointsAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 358 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 723 CheckedPairsTotal, 56 TotalNumberOfCompositions - 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, 67 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 100 SDslu, 58 SDs, 0 SdLazy, 38 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...