./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d2f1d49c580bca4d5b85d43e4dafc84e50b5610c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:43,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:43,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:43,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:43,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:43,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:43,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:43,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:43,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:43,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:43,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:43,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:43,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:43,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:43,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:43,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:43,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:43,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:43,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:43,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:43,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:43,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:43,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:43,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:43,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:43,248 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:43,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:43,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:43,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:43,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:43,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:43,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:43,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:43,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:43,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:43,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:43,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:43,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:43,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:43,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:43,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:43,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:43,266 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:43,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:43,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:43,267 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:43,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:43,267 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:43,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:43,267 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:43,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:43,268 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:43,268 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:43,268 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:43,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:43,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:43,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:43,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:43,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:43,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:43,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:43,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:43,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:43,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:43,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:43,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:43,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:43,273 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan 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 -> Taipan 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 -> d2f1d49c580bca4d5b85d43e4dafc84e50b5610c [2019-10-22 11:25:43,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:43,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:43,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:43,321 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:43,322 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:43,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2019-10-22 11:25:43,365 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/data/f4c29bd3f/3ff63232eba847f89f42a1ea388c282f/FLAGc126ff833 [2019-10-22 11:25:43,816 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:43,816 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/sv-benchmarks/c/pthread-wmm/safe030_tso.opt.i [2019-10-22 11:25:43,830 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/data/f4c29bd3f/3ff63232eba847f89f42a1ea388c282f/FLAGc126ff833 [2019-10-22 11:25:44,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/data/f4c29bd3f/3ff63232eba847f89f42a1ea388c282f [2019-10-22 11:25:44,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:44,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:44,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:44,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:44,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:44,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77066d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44, skipping insertion in model container [2019-10-22 11:25:44,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,149 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:44,182 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:44,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,560 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:44,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:44,660 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:44,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44 WrapperNode [2019-10-22 11:25:44,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:44,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:44,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:44,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:44,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:44,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:44,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... [2019-10-22 11:25:44,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:44,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:44,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:44,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:44,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:25:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:25:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:25:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:25:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:25:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:25:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:25:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:25:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:25:44,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:44,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:44,809 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:25:45,235 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:45,236 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:25:45,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45 BoogieIcfgContainer [2019-10-22 11:25:45,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:45,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:45,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:45,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:45,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:44" (1/3) ... [2019-10-22 11:25:45,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287b8233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:44" (2/3) ... [2019-10-22 11:25:45,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287b8233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:45, skipping insertion in model container [2019-10-22 11:25:45,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/3) ... [2019-10-22 11:25:45,246 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.opt.i [2019-10-22 11:25:45,283 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,283 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,283 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,284 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,284 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,284 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,284 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,285 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,285 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,285 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,285 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,286 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,286 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,286 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,286 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,286 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,287 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,287 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,287 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,287 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,287 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,288 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,288 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,288 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,288 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,288 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,289 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,289 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,289 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,289 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:45,314 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:25:45,315 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:45,325 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:45,339 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:45,361 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:45,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:45,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:45,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:45,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:45,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:45,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:45,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:45,374 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions [2019-10-22 11:25:45,526 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2383 states. [2019-10-22 11:25:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states. [2019-10-22 11:25:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:25:45,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:45,546 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:45,548 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:45,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1436525340, now seen corresponding path program 1 times [2019-10-22 11:25:45,563 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:45,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800125036] [2019-10-22 11:25:45,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:45,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:45,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:45,902 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800125036] [2019-10-22 11:25:45,902 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:45,903 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:25:45,903 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099079495] [2019-10-22 11:25:45,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:25:45,910 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:45,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:25:45,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:25:45,926 INFO L87 Difference]: Start difference. First operand 2383 states. Second operand 4 states. [2019-10-22 11:25:46,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,063 INFO L93 Difference]: Finished difference Result 2491 states and 8067 transitions. [2019-10-22 11:25:46,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:25:46,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:25:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,098 INFO L225 Difference]: With dead ends: 2491 [2019-10-22 11:25:46,098 INFO L226 Difference]: Without dead ends: 1126 [2019-10-22 11:25:46,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2019-10-22 11:25:46,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2019-10-22 11:25:46,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1126 states. [2019-10-22 11:25:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 3556 transitions. [2019-10-22 11:25:46,224 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 3556 transitions. Word has length 28 [2019-10-22 11:25:46,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,225 INFO L462 AbstractCegarLoop]: Abstraction has 1126 states and 3556 transitions. [2019-10-22 11:25:46,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:25:46,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 3556 transitions. [2019-10-22 11:25:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:25:46,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,229 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,230 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1185426072, now seen corresponding path program 1 times [2019-10-22 11:25:46,230 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,230 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776246574] [2019-10-22 11:25:46,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,382 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776246574] [2019-10-22 11:25:46,382 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,383 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:25:46,383 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154043651] [2019-10-22 11:25:46,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:25:46,384 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:25:46,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:25:46,385 INFO L87 Difference]: Start difference. First operand 1126 states and 3556 transitions. Second operand 5 states. [2019-10-22 11:25:46,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,467 INFO L93 Difference]: Finished difference Result 1166 states and 3550 transitions. [2019-10-22 11:25:46,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:46,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-10-22 11:25:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,475 INFO L225 Difference]: With dead ends: 1166 [2019-10-22 11:25:46,475 INFO L226 Difference]: Without dead ends: 1042 [2019-10-22 11:25:46,476 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2019-10-22 11:25:46,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1042. [2019-10-22 11:25:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2019-10-22 11:25:46,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 3241 transitions. [2019-10-22 11:25:46,523 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 3241 transitions. Word has length 29 [2019-10-22 11:25:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,524 INFO L462 AbstractCegarLoop]: Abstraction has 1042 states and 3241 transitions. [2019-10-22 11:25:46,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:25:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 3241 transitions. [2019-10-22 11:25:46,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:25:46,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,530 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,531 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1354593798, now seen corresponding path program 1 times [2019-10-22 11:25:46,532 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481084388] [2019-10-22 11:25:46,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481084388] [2019-10-22 11:25:46,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,685 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:46,685 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891375899] [2019-10-22 11:25:46,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:46,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:46,686 INFO L87 Difference]: Start difference. First operand 1042 states and 3241 transitions. Second operand 6 states. [2019-10-22 11:25:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:46,805 INFO L93 Difference]: Finished difference Result 818 states and 2377 transitions. [2019-10-22 11:25:46,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:25:46,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-10-22 11:25:46,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:46,810 INFO L225 Difference]: With dead ends: 818 [2019-10-22 11:25:46,811 INFO L226 Difference]: Without dead ends: 706 [2019-10-22 11:25:46,811 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:46,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-22 11:25:46,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2019-10-22 11:25:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2019-10-22 11:25:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 2065 transitions. [2019-10-22 11:25:46,836 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 2065 transitions. Word has length 30 [2019-10-22 11:25:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:46,837 INFO L462 AbstractCegarLoop]: Abstraction has 706 states and 2065 transitions. [2019-10-22 11:25:46,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 2065 transitions. [2019-10-22 11:25:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:25:46,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:46,839 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:46,839 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:46,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1357106860, now seen corresponding path program 1 times [2019-10-22 11:25:46,840 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:46,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842158888] [2019-10-22 11:25:46,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:46,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:46,975 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842158888] [2019-10-22 11:25:46,975 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:46,975 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:46,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768081045] [2019-10-22 11:25:46,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:46,976 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:46,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:46,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:46,977 INFO L87 Difference]: Start difference. First operand 706 states and 2065 transitions. Second operand 6 states. [2019-10-22 11:25:47,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:47,100 INFO L93 Difference]: Finished difference Result 1106 states and 3289 transitions. [2019-10-22 11:25:47,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:47,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:25:47,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:47,104 INFO L225 Difference]: With dead ends: 1106 [2019-10-22 11:25:47,104 INFO L226 Difference]: Without dead ends: 590 [2019-10-22 11:25:47,104 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:47,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-22 11:25:47,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-22 11:25:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-22 11:25:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 1753 transitions. [2019-10-22 11:25:47,127 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 1753 transitions. Word has length 31 [2019-10-22 11:25:47,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:47,128 INFO L462 AbstractCegarLoop]: Abstraction has 590 states and 1753 transitions. [2019-10-22 11:25:47,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 1753 transitions. [2019-10-22 11:25:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:25:47,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:47,130 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:25:47,130 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:47,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:47,131 INFO L82 PathProgramCache]: Analyzing trace with hash 478598006, now seen corresponding path program 2 times [2019-10-22 11:25:47,132 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:47,132 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288841113] [2019-10-22 11:25:47,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:47,132 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:47,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:47,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288841113] [2019-10-22 11:25:47,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:47,276 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:25:47,276 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184046870] [2019-10-22 11:25:47,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:47,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:25:47,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:47,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:47,277 INFO L87 Difference]: Start difference. First operand 590 states and 1753 transitions. Second operand 6 states. [2019-10-22 11:25:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:47,384 INFO L93 Difference]: Finished difference Result 462 states and 1337 transitions. [2019-10-22 11:25:47,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:25:47,384 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:25:47,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:47,385 INFO L225 Difference]: With dead ends: 462 [2019-10-22 11:25:47,385 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:47,385 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:25:47,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:47,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:47,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-10-22 11:25:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:47,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:47,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:47,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:47,393 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:25:47,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:47 BasicIcfg [2019-10-22 11:25:47,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:47,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:47,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:47,396 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:47,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:45" (3/4) ... [2019-10-22 11:25:47,402 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:47,410 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:25:47,411 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:25:47,411 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:25:47,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:25:47,418 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:47,470 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d69c749-881a-498c-b995-2a78f33625ed/bin/utaipan/witness.graphml [2019-10-22 11:25:47,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:47,473 INFO L168 Benchmark]: Toolchain (without parser) took 3337.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.0 MB in the beginning and 848.0 MB in the end (delta: 88.9 MB). Peak memory consumption was 218.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,473 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,476 INFO L168 Benchmark]: Boogie Preprocessor took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,477 INFO L168 Benchmark]: RCFGBuilder took 488.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,477 INFO L168 Benchmark]: TraceAbstraction took 2156.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.0 MB in the end (delta: 213.9 MB). Peak memory consumption was 213.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:47,477 INFO L168 Benchmark]: Witness Printer took 75.30 ms. Allocated memory is still 1.2 GB. Free memory is still 848.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:47,480 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 525.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.0 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 488.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2156.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.0 MB in the end (delta: 213.9 MB). Peak memory consumption was 213.9 MB. Max. memory is 11.5 GB. * Witness Printer took 75.30 ms. Allocated memory is still 1.2 GB. Free memory is still 848.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 69 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 318 SDslu, 540 SDs, 0 SdLazy, 68 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2383occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 11118 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...