./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.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_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/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 8d8e51e01923676a73357cd3693f2ebd1e5308ad ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:52:43,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:52:43,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:52:43,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:52:43,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:52:43,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:52:43,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:52:43,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:52:43,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:52:43,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:52:43,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:52:43,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:52:43,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:52:43,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:52:43,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:52:43,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:52:43,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:52:43,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:52:43,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:52:43,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:52:43,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:52:43,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:52:43,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:52:43,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:52:43,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:52:43,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:52:43,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:52:43,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:52:43,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:52:43,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:52:43,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:52:43,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:52:43,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:52:43,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:52:43,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:52:43,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:52:43,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:52:43,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:52:43,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:52:43,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:52:43,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:52:43,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:52:43,550 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:52:43,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:52:43,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:52:43,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:52:43,552 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:52:43,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:52:43,552 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:52:43,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:52:43,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:52:43,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:52:43,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:52:43,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:52:43,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:52:43,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:52:43,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:52:43,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:52:43,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:52:43,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:52:43,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:52:43,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:52:43,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:52:43,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:52:43,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:52:43,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:52:43,556 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_29132b55-a7c7-417f-a294-afbe60cab9cd/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 -> 8d8e51e01923676a73357cd3693f2ebd1e5308ad [2019-12-07 17:52:43,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:52:43,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:52:43,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:52:43,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:52:43,680 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:52:43,681 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i [2019-12-07 17:52:43,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/data/853ba910d/d44d83d0c9814255ad05d7d8363a57d9/FLAGc297208a8 [2019-12-07 17:52:44,085 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:52:44,085 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/sv-benchmarks/c/pthread-wmm/safe005_tso.oepc.i [2019-12-07 17:52:44,095 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/data/853ba910d/d44d83d0c9814255ad05d7d8363a57d9/FLAGc297208a8 [2019-12-07 17:52:44,486 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/data/853ba910d/d44d83d0c9814255ad05d7d8363a57d9 [2019-12-07 17:52:44,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:52:44,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:52:44,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:52:44,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:52:44,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:52:44,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a891328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44, skipping insertion in model container [2019-12-07 17:52:44,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:52:44,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:52:44,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:52:44,751 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:52:44,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:52:44,839 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:52:44,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44 WrapperNode [2019-12-07 17:52:44,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:52:44,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:52:44,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:52:44,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:52:44,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:52:44,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:52:44,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:52:44,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:52:44,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... [2019-12-07 17:52:44,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:52:44,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:52:44,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:52:44,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:52:44,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/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 17:52:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 17:52:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 17:52:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 17:52:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 17:52:44,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 17:52:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 17:52:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:52:44,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:52:44,945 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 17:52:45,116 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:52:45,116 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 17:52:45,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:52:45 BoogieIcfgContainer [2019-12-07 17:52:45,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:52:45,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:52:45,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:52:45,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:52:45,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:52:44" (1/3) ... [2019-12-07 17:52:45,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddbd81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:52:45, skipping insertion in model container [2019-12-07 17:52:45,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:52:44" (2/3) ... [2019-12-07 17:52:45,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddbd81c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:52:45, skipping insertion in model container [2019-12-07 17:52:45,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:52:45" (3/3) ... [2019-12-07 17:52:45,122 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2019-12-07 17:52:45,128 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 17:52:45,129 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:52:45,133 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:52:45,133 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 17:52:45,150 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,150 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,150 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,150 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,151 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,152 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 17:52:45,166 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 17:52:45,178 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:52:45,178 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:52:45,178 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:52:45,178 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:52:45,178 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:52:45,178 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:52:45,178 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:52:45,179 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:52:45,186 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-07 17:52:45,187 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 17:52:45,213 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 17:52:45,213 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 17:52:45,217 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 17:52:45,219 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-07 17:52:45,228 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-07 17:52:45,228 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 17:52:45,229 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 17:52:45,230 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 17:52:45,230 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 17:52:45,960 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-07 17:52:45,961 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-07 17:52:45,964 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-07 17:52:45,971 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-07 17:52:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-07 17:52:45,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:52:45,977 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:52:45,978 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:52:45,978 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:52:45,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:52:45,982 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-07 17:52:45,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:52:45,988 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830450759] [2019-12-07 17:52:45,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:52:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:52:46,163 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 17:52:46,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830450759] [2019-12-07 17:52:46,164 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:52:46,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:52:46,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666506491] [2019-12-07 17:52:46,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:52:46,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:52:46,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:52:46,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:52:46,179 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-07 17:52:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:52:46,202 INFO L93 Difference]: Finished difference Result 57 states and 102 transitions. [2019-12-07 17:52:46,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:52:46,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 17:52:46,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:52:46,211 INFO L225 Difference]: With dead ends: 57 [2019-12-07 17:52:46,211 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 17:52:46,212 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 17:52:46,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 17:52:46,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2019-12-07 17:52:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-07 17:52:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 54 transitions. [2019-12-07 17:52:46,236 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 54 transitions. Word has length 8 [2019-12-07 17:52:46,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:52:46,237 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 54 transitions. [2019-12-07 17:52:46,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:52:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2019-12-07 17:52:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 17:52:46,238 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:52:46,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:52:46,238 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:52:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:52:46,238 INFO L82 PathProgramCache]: Analyzing trace with hash -816919897, now seen corresponding path program 1 times [2019-12-07 17:52:46,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:52:46,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931608719] [2019-12-07 17:52:46,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:52:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:52:46,307 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 17:52:46,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931608719] [2019-12-07 17:52:46,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:52:46,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:52:46,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764767086] [2019-12-07 17:52:46,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:52:46,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:52:46,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:52:46,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:52:46,310 INFO L87 Difference]: Start difference. First operand 34 states and 54 transitions. Second operand 5 states. [2019-12-07 17:52:46,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:52:46,349 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2019-12-07 17:52:46,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:52:46,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 17:52:46,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:52:46,350 INFO L225 Difference]: With dead ends: 37 [2019-12-07 17:52:46,350 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 17:52:46,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:52:46,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 17:52:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-07 17:52:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 17:52:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-12-07 17:52:46,353 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 9 [2019-12-07 17:52:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:52:46,354 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-12-07 17:52:46,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:52:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-12-07 17:52:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 17:52:46,354 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:52:46,354 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:52:46,354 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:52:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:52:46,355 INFO L82 PathProgramCache]: Analyzing trace with hash 419504828, now seen corresponding path program 1 times [2019-12-07 17:52:46,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:52:46,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945010294] [2019-12-07 17:52:46,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:52:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:52:46,422 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 17:52:46,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945010294] [2019-12-07 17:52:46,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:52:46,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:52:46,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556624866] [2019-12-07 17:52:46,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:52:46,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:52:46,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:52:46,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:52:46,423 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 4 states. [2019-12-07 17:52:46,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:52:46,433 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2019-12-07 17:52:46,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:52:46,433 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 17:52:46,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:52:46,434 INFO L225 Difference]: With dead ends: 24 [2019-12-07 17:52:46,434 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 17:52:46,434 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 17:52:46,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 17:52:46,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-12-07 17:52:46,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 17:52:46,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2019-12-07 17:52:46,437 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2019-12-07 17:52:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:52:46,437 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2019-12-07 17:52:46,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:52:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-12-07 17:52:46,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 17:52:46,438 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:52:46,438 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:52:46,438 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:52:46,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:52:46,438 INFO L82 PathProgramCache]: Analyzing trace with hash 474055032, now seen corresponding path program 1 times [2019-12-07 17:52:46,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:52:46,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185824063] [2019-12-07 17:52:46,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:52:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:52:46,496 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 17:52:46,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185824063] [2019-12-07 17:52:46,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:52:46,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:52:46,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165520090] [2019-12-07 17:52:46,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:52:46,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:52:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:52:46,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:52:46,498 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 6 states. [2019-12-07 17:52:46,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:52:46,540 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-07 17:52:46,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:52:46,541 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 17:52:46,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:52:46,541 INFO L225 Difference]: With dead ends: 19 [2019-12-07 17:52:46,541 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 17:52:46,542 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:52:46,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 17:52:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 17:52:46,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 17:52:46,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 17:52:46,544 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-12-07 17:52:46,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:52:46,544 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 17:52:46,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:52:46,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-07 17:52:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 17:52:46,545 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:52:46,545 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:52:46,545 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:52:46,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:52:46,545 INFO L82 PathProgramCache]: Analyzing trace with hash 144947967, now seen corresponding path program 1 times [2019-12-07 17:52:46,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:52:46,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776774505] [2019-12-07 17:52:46,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:52:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:52:46,593 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 17:52:46,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776774505] [2019-12-07 17:52:46,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:52:46,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:52:46,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123485787] [2019-12-07 17:52:46,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:52:46,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:52:46,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:52:46,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:52:46,594 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-07 17:52:46,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:52:46,610 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 17:52:46,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:52:46,610 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 17:52:46,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:52:46,611 INFO L225 Difference]: With dead ends: 14 [2019-12-07 17:52:46,611 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:52:46,611 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:52:46,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:52:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:52:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:52:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:52:46,611 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 17:52:46,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:52:46,612 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:52:46,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:52:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:52:46,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:52:46,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:52:46 BasicIcfg [2019-12-07 17:52:46,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:52:46,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:52:46,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:52:46,615 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:52:46,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:52:45" (3/4) ... [2019-12-07 17:52:46,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:52:46,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 17:52:46,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 17:52:46,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 17:52:46,625 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 17:52:46,625 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:52:46,625 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 17:52:46,654 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_29132b55-a7c7-417f-a294-afbe60cab9cd/bin/uautomizer/witness.graphml [2019-12-07 17:52:46,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:52:46,656 INFO L168 Benchmark]: Toolchain (without parser) took 2166.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 940.9 MB in the beginning and 1.0 GB in the end (delta: -103.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:52:46,656 INFO L168 Benchmark]: CDTParser took 0.20 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 17:52:46,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:52:46,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.30 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 17:52:46,657 INFO L168 Benchmark]: Boogie Preprocessor took 22.22 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 17:52:46,657 INFO L168 Benchmark]: RCFGBuilder took 219.51 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:52:46,657 INFO L168 Benchmark]: TraceAbstraction took 1496.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -363.2 kB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:52:46,658 INFO L168 Benchmark]: Witness Printer took 39.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:52:46,659 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 350.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.30 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 22.22 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. * RCFGBuilder took 219.51 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1496.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -363.2 kB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 39.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 47 SDslu, 30 SDs, 0 SdLazy, 43 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 2651 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...