./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_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_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/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 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 ......................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:05:19,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:05:19,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:05:19,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:05:19,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:05:19,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:05:19,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:05:19,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:05:19,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:05:19,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:05:19,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:05:19,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:05:19,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:05:19,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:05:19,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:05:19,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:05:19,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:05:19,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:05:19,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:05:20,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:05:20,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:05:20,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:05:20,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:05:20,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:05:20,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:05:20,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:05:20,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:05:20,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:05:20,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:05:20,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:05:20,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:05:20,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:05:20,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:05:20,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:05:20,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:05:20,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:05:20,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:05:20,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:05:20,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:05:20,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:05:20,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:05:20,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:05:20,020 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:05:20,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:05:20,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:05:20,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:05:20,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:05:20,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:05:20,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:05:20,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:05:20,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:05:20,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:05:20,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:05:20,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:05:20,025 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_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/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 -> 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 [2019-12-07 12:05:20,124 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:05:20,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:05:20,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:05:20,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:05:20,137 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:05:20,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-12-07 12:05:20,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/data/b023a1e6a/532f346c81dc45d48e3444d96960975c/FLAG34c4b1293 [2019-12-07 12:05:20,617 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:05:20,617 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-12-07 12:05:20,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/data/b023a1e6a/532f346c81dc45d48e3444d96960975c/FLAG34c4b1293 [2019-12-07 12:05:20,968 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/data/b023a1e6a/532f346c81dc45d48e3444d96960975c [2019-12-07 12:05:20,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:05:20,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:05:20,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:20,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:05:20,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:05:20,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:20" (1/1) ... [2019-12-07 12:05:20,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a8b58c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:20, skipping insertion in model container [2019-12-07 12:05:20,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:20" (1/1) ... [2019-12-07 12:05:21,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:05:21,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:05:21,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:21,271 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:05:21,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:21,347 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:05:21,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21 WrapperNode [2019-12-07 12:05:21,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:21,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:21,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:05:21,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:05:21,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:21,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:05:21,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:05:21,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:05:21,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... [2019-12-07 12:05:21,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:05:21,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:05:21,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:05:21,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:05:21,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/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 12:05:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:05:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 12:05:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:05:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:05:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 12:05:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 12:05:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 12:05:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 12:05:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 12:05:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:05:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:05:21,441 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 12:05:21,600 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:05:21,600 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 12:05:21,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:21 BoogieIcfgContainer [2019-12-07 12:05:21,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:05:21,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:05:21,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:05:21,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:05:21,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:05:20" (1/3) ... [2019-12-07 12:05:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248827c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:21, skipping insertion in model container [2019-12-07 12:05:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:21" (2/3) ... [2019-12-07 12:05:21,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248827c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:21, skipping insertion in model container [2019-12-07 12:05:21,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:21" (3/3) ... [2019-12-07 12:05:21,606 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2019-12-07 12:05:21,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 12:05:21,612 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:05:21,616 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:05:21,616 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 12:05:21,632 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,632 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,632 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,632 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,633 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,634 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,634 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 12:05:21,647 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:05:21,661 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:05:21,662 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:05:21,662 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:05:21,662 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:05:21,662 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:05:21,662 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:05:21,662 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:05:21,662 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:05:21,670 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 43 transitions [2019-12-07 12:05:21,671 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-07 12:05:21,693 INFO L134 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-07 12:05:21,693 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 12:05:21,697 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs. 6/45 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-07 12:05:21,699 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 49 places, 43 transitions [2019-12-07 12:05:21,707 INFO L134 PetriNetUnfolder]: 1/41 cut-off events. [2019-12-07 12:05:21,707 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 12:05:21,708 INFO L76 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs. 6/45 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2019-12-07 12:05:21,709 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 234 [2019-12-07 12:05:21,710 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 12:05:22,357 INFO L206 etLargeBlockEncoding]: Checked pairs total: 271 [2019-12-07 12:05:22,357 INFO L214 etLargeBlockEncoding]: Total number of compositions: 38 [2019-12-07 12:05:22,359 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 15 places, 11 transitions [2019-12-07 12:05:22,366 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22 states. [2019-12-07 12:05:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 12:05:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 12:05:22,373 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:22,373 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:05:22,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash 608072787, now seen corresponding path program 1 times [2019-12-07 12:05:22,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:22,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911756746] [2019-12-07 12:05:22,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:22,560 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 12:05:22,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911756746] [2019-12-07 12:05:22,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:22,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 12:05:22,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544262140] [2019-12-07 12:05:22,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:05:22,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:05:22,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:05:22,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:05:22,582 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2019-12-07 12:05:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:22,603 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2019-12-07 12:05:22,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:05:22,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 12:05:22,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:22,613 INFO L225 Difference]: With dead ends: 24 [2019-12-07 12:05:22,614 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 12:05:22,615 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 12:05:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 12:05:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 12:05:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 12:05:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2019-12-07 12:05:22,639 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 6 [2019-12-07 12:05:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:22,640 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 25 transitions. [2019-12-07 12:05:22,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:05:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 25 transitions. [2019-12-07 12:05:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 12:05:22,640 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:22,640 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:22,641 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:22,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:22,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1668374393, now seen corresponding path program 1 times [2019-12-07 12:05:22,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:22,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635992798] [2019-12-07 12:05:22,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:22,708 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 12:05:22,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635992798] [2019-12-07 12:05:22,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:22,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:05:22,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923980521] [2019-12-07 12:05:22,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 12:05:22,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:05:22,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:05:22,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:05:22,711 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. Second operand 5 states. [2019-12-07 12:05:22,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:22,747 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2019-12-07 12:05:22,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:05:22,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 12:05:22,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:22,748 INFO L225 Difference]: With dead ends: 16 [2019-12-07 12:05:22,748 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 12:05:22,749 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 12:05:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 12:05:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 12:05:22,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 12:05:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 12:05:22,750 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-12-07 12:05:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:22,751 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 12:05:22,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 12:05:22,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 12:05:22,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 12:05:22,751 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:22,751 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:22,752 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:22,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:22,752 INFO L82 PathProgramCache]: Analyzing trace with hash 180062532, now seen corresponding path program 1 times [2019-12-07 12:05:22,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:22,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684349971] [2019-12-07 12:05:22,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:22,791 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 12:05:22,791 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684349971] [2019-12-07 12:05:22,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:22,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:05:22,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118781947] [2019-12-07 12:05:22,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:05:22,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:05:22,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:05:22,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:05:22,793 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-12-07 12:05:22,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:22,805 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-12-07 12:05:22,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:05:22,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 12:05:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:22,806 INFO L225 Difference]: With dead ends: 14 [2019-12-07 12:05:22,806 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 12:05:22,807 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 12:05:22,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 12:05:22,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 12:05:22,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 12:05:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2019-12-07 12:05:22,808 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2019-12-07 12:05:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:22,809 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2019-12-07 12:05:22,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:05:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-07 12:05:22,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 12:05:22,809 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:22,809 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:22,809 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:22,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:22,810 INFO L82 PathProgramCache]: Analyzing trace with hash 244439922, now seen corresponding path program 2 times [2019-12-07 12:05:22,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:22,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974927926] [2019-12-07 12:05:22,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:22,842 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 12:05:22,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974927926] [2019-12-07 12:05:22,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:22,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:05:22,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195282002] [2019-12-07 12:05:22,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:05:22,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:05:22,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:05:22,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:05:22,844 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 4 states. [2019-12-07 12:05:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:22,852 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2019-12-07 12:05:22,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:05:22,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 12:05:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:22,853 INFO L225 Difference]: With dead ends: 8 [2019-12-07 12:05:22,853 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:05:22,854 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 12:05:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:05:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:05:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:05:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:05:22,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 12:05:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:22,855 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:05:22,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:05:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:05:22,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:05:22,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:05:22 BasicIcfg [2019-12-07 12:05:22,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:05:22,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:05:22,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:05:22,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:05:22,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:21" (3/4) ... [2019-12-07 12:05:22,863 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:05:22,869 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 12:05:22,869 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 12:05:22,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 12:05:22,873 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:05:22,874 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:05:22,902 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9db5fd3a-3f07-49ca-ac5a-0a4b2e0d9261/bin/uautomizer/witness.graphml [2019-12-07 12:05:22,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:05:22,904 INFO L168 Benchmark]: Toolchain (without parser) took 1928.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 940.8 MB in the beginning and 848.3 MB in the end (delta: 92.5 MB). Peak memory consumption was 197.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:22,904 INFO L168 Benchmark]: CDTParser took 0.21 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 12:05:22,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:22,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.05 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 12:05:22,905 INFO L168 Benchmark]: Boogie Preprocessor took 16.81 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 12:05:22,906 INFO L168 Benchmark]: RCFGBuilder took 204.55 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:22,906 INFO L168 Benchmark]: TraceAbstraction took 1257.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 848.3 MB in the end (delta: 196.1 MB). Peak memory consumption was 196.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:22,906 INFO L168 Benchmark]: Witness Printer took 42.92 ms. Allocated memory is still 1.1 GB. Free memory is still 848.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:05:22,909 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 370.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.05 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 16.81 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 204.55 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1257.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 848.3 MB in the end (delta: 196.1 MB). Peak memory consumption was 196.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.92 ms. Allocated memory is still 1.1 GB. Free memory is still 848.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.6s, 49 ProgramPointsBefore, 15 ProgramPointsAfterwards, 43 TransitionsBefore, 11 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 118 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 271 CheckedPairsTotal, 38 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 3 procedures, 43 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 15 SDslu, 10 SDs, 0 SdLazy, 22 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...