./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/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 1f4eecab154da301acf67f9c4d20f94468b60c8f ............................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:38:19,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:38:19,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:38:19,075 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:38:19,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:38:19,076 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:38:19,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:38:19,077 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:38:19,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:38:19,078 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:38:19,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:38:19,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:38:19,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:38:19,080 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:38:19,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:38:19,080 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:38:19,081 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:38:19,082 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:38:19,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:38:19,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:38:19,084 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:38:19,084 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:38:19,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:38:19,085 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:38:19,085 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:38:19,086 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:38:19,086 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:38:19,087 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:38:19,087 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:38:19,088 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:38:19,088 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:38:19,088 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:38:19,088 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:38:19,088 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:38:19,089 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:38:19,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:38:19,089 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:38:19,096 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:38:19,096 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:38:19,097 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:38:19,097 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:38:19,097 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:38:19,098 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:38:19,098 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:38:19,099 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:38:19,099 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:38:19,099 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:38:19,100 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:38:19,100 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:38:19,100 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:38:19,100 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:38:19,100 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:38:19,100 INFO L133 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_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/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 -> 1f4eecab154da301acf67f9c4d20f94468b60c8f [2018-12-09 18:38:19,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:38:19,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:38:19,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:38:19,127 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:38:19,128 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:38:19,128 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/../../sv-benchmarks/c/ldv-races/race-1_1-join_true-unreach-call.i [2018-12-09 18:38:19,163 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/data/469aa1091/834dafd1448f4dc6a01140ee418a3d2c/FLAG53fe8f385 [2018-12-09 18:38:19,605 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:38:19,605 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/sv-benchmarks/c/ldv-races/race-1_1-join_true-unreach-call.i [2018-12-09 18:38:19,614 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/data/469aa1091/834dafd1448f4dc6a01140ee418a3d2c/FLAG53fe8f385 [2018-12-09 18:38:19,622 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/data/469aa1091/834dafd1448f4dc6a01140ee418a3d2c [2018-12-09 18:38:19,624 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:38:19,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:38:19,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:38:19,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:38:19,628 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:38:19,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:19" (1/1) ... [2018-12-09 18:38:19,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115e7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:19, skipping insertion in model container [2018-12-09 18:38:19,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:38:19" (1/1) ... [2018-12-09 18:38:19,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:38:19,660 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:38:20,026 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:38:20,036 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:38:20,105 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:38:20,228 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:38:20,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20 WrapperNode [2018-12-09 18:38:20,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:38:20,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:38:20,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:38:20,229 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:38:20,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:38:20,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:38:20,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:38:20,263 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:38:20,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... [2018-12-09 18:38:20,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:38:20,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:38:20,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:38:20,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:38:20,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/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 [2018-12-09 18:38:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:38:20,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:38:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-12-09 18:38:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 18:38:20,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 18:38:20,318 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 18:38:20,614 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:38:20,614 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 18:38:20,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:20 BoogieIcfgContainer [2018-12-09 18:38:20,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:38:20,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:38:20,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:38:20,617 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:38:20,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:38:19" (1/3) ... [2018-12-09 18:38:20,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cabe05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:38:20, skipping insertion in model container [2018-12-09 18:38:20,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:38:20" (2/3) ... [2018-12-09 18:38:20,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cabe05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:38:20, skipping insertion in model container [2018-12-09 18:38:20,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:20" (3/3) ... [2018-12-09 18:38:20,619 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join_true-unreach-call.i [2018-12-09 18:38:20,637 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,637 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,637 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,637 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,638 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,639 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,639 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,639 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,639 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 18:38:20,646 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 18:38:20,646 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:38:20,651 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2018-12-09 18:38:20,660 INFO L257 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2018-12-09 18:38:20,675 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:38:20,675 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:38:20,675 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:38:20,675 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:38:20,675 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:38:20,676 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:38:20,676 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:38:20,676 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:38:20,681 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81places, 85 transitions [2018-12-09 18:38:20,693 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 275 states. [2018-12-09 18:38:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2018-12-09 18:38:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 18:38:20,699 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:38:20,700 INFO L402 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] [2018-12-09 18:38:20,701 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:38:20,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:38:20,704 INFO L82 PathProgramCache]: Analyzing trace with hash 467173530, now seen corresponding path program 1 times [2018-12-09 18:38:20,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:38:20,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:20,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:38:20,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:20,766 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:38:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:38:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:38:20,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:38:20,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 18:38:20,889 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:38:20,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 18:38:20,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 18:38:20,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 18:38:20,906 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 5 states. [2018-12-09 18:38:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:38:20,995 INFO L93 Difference]: Finished difference Result 273 states and 455 transitions. [2018-12-09 18:38:20,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:38:20,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-09 18:38:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:38:21,004 INFO L225 Difference]: With dead ends: 273 [2018-12-09 18:38:21,004 INFO L226 Difference]: Without dead ends: 237 [2018-12-09 18:38:21,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:38:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-12-09 18:38:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2018-12-09 18:38:21,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-12-09 18:38:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 398 transitions. [2018-12-09 18:38:21,035 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 398 transitions. Word has length 25 [2018-12-09 18:38:21,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:38:21,036 INFO L480 AbstractCegarLoop]: Abstraction has 237 states and 398 transitions. [2018-12-09 18:38:21,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 18:38:21,036 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 398 transitions. [2018-12-09 18:38:21,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 18:38:21,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:38:21,036 INFO L402 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, 1, 1] [2018-12-09 18:38:21,037 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:38:21,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:38:21,037 INFO L82 PathProgramCache]: Analyzing trace with hash 298462795, now seen corresponding path program 1 times [2018-12-09 18:38:21,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:38:21,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:38:21,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,049 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:38:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:38:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:38:21,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:38:21,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 18:38:21,143 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:38:21,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 18:38:21,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 18:38:21,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:38:21,145 INFO L87 Difference]: Start difference. First operand 237 states and 398 transitions. Second operand 8 states. [2018-12-09 18:38:21,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:38:21,244 INFO L93 Difference]: Finished difference Result 235 states and 396 transitions. [2018-12-09 18:38:21,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 18:38:21,245 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-12-09 18:38:21,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:38:21,246 INFO L225 Difference]: With dead ends: 235 [2018-12-09 18:38:21,246 INFO L226 Difference]: Without dead ends: 229 [2018-12-09 18:38:21,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:38:21,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-12-09 18:38:21,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2018-12-09 18:38:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-12-09 18:38:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 390 transitions. [2018-12-09 18:38:21,256 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 390 transitions. Word has length 33 [2018-12-09 18:38:21,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:38:21,257 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 390 transitions. [2018-12-09 18:38:21,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 18:38:21,257 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 390 transitions. [2018-12-09 18:38:21,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-09 18:38:21,258 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:38:21,258 INFO L402 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, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:38:21,258 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:38:21,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:38:21,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1079724639, now seen corresponding path program 1 times [2018-12-09 18:38:21,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:38:21,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:38:21,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:38:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:38:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:38:21,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:38:21,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 18:38:21,399 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:38:21,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 18:38:21,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 18:38:21,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:38:21,400 INFO L87 Difference]: Start difference. First operand 229 states and 390 transitions. Second operand 8 states. [2018-12-09 18:38:21,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:38:21,538 INFO L93 Difference]: Finished difference Result 199 states and 332 transitions. [2018-12-09 18:38:21,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 18:38:21,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-12-09 18:38:21,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:38:21,539 INFO L225 Difference]: With dead ends: 199 [2018-12-09 18:38:21,539 INFO L226 Difference]: Without dead ends: 159 [2018-12-09 18:38:21,540 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-12-09 18:38:21,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-12-09 18:38:21,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-12-09 18:38:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-12-09 18:38:21,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 257 transitions. [2018-12-09 18:38:21,543 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 257 transitions. Word has length 38 [2018-12-09 18:38:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:38:21,544 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 257 transitions. [2018-12-09 18:38:21,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 18:38:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 257 transitions. [2018-12-09 18:38:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 18:38:21,544 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:38:21,545 INFO L402 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, 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] [2018-12-09 18:38:21,545 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:38:21,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:38:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2047124485, now seen corresponding path program 1 times [2018-12-09 18:38:21,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:38:21,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:38:21,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:38:21,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:38:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:38:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:38:21,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:38:21,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 18:38:21,633 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:38:21,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 18:38:21,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 18:38:21,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:38:21,634 INFO L87 Difference]: Start difference. First operand 159 states and 257 transitions. Second operand 8 states. [2018-12-09 18:38:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:38:21,711 INFO L93 Difference]: Finished difference Result 157 states and 255 transitions. [2018-12-09 18:38:21,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 18:38:21,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-12-09 18:38:21,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:38:21,711 INFO L225 Difference]: With dead ends: 157 [2018-12-09 18:38:21,711 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 18:38:21,712 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:38:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 18:38:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 18:38:21,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 18:38:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 18:38:21,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2018-12-09 18:38:21,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:38:21,712 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 18:38:21,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 18:38:21,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 18:38:21,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:38:21,714 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 18:38:21,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:38:21 BasicIcfg [2018-12-09 18:38:21,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:38:21,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:38:21,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:38:21,716 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:38:21,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:38:20" (3/4) ... [2018-12-09 18:38:21,718 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:38:21,722 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2018-12-09 18:38:21,724 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 18:38:21,724 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 18:38:21,750 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cfcb3aab-5671-4830-a9ec-e214b2bbe7e8/bin-2019/utaipan/witness.graphml [2018-12-09 18:38:21,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:38:21,751 INFO L168 Benchmark]: Toolchain (without parser) took 2126.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 948.1 MB in the beginning and 1.0 GB in the end (delta: -85.4 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,752 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:38:21,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 948.1 MB in the beginning and 999.3 MB in the end (delta: -51.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.58 ms. Allocated memory is still 1.1 GB. Free memory was 999.3 MB in the beginning and 996.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,752 INFO L168 Benchmark]: Boogie Preprocessor took 21.03 ms. Allocated memory is still 1.1 GB. Free memory was 996.6 MB in the beginning and 994.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,753 INFO L168 Benchmark]: RCFGBuilder took 329.87 ms. Allocated memory is still 1.1 GB. Free memory was 994.0 MB in the beginning and 950.5 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,753 INFO L168 Benchmark]: TraceAbstraction took 1100.41 ms. Allocated memory is still 1.1 GB. Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -86.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:38:21,753 INFO L168 Benchmark]: Witness Printer took 35.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 18:38:21,754 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 602.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 948.1 MB in the beginning and 999.3 MB in the end (delta: -51.2 MB). Peak memory consumption was 83.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.58 ms. Allocated memory is still 1.1 GB. Free memory was 999.3 MB in the beginning and 996.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.03 ms. Allocated memory is still 1.1 GB. Free memory was 996.6 MB in the beginning and 994.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 329.87 ms. Allocated memory is still 1.1 GB. Free memory was 994.0 MB in the beginning and 950.5 MB in the end (delta: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1100.41 ms. Allocated memory is still 1.1 GB. Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -86.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 35.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3766]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3766]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3766]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3766]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3766]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 95 locations, 5 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 295 SDtfs, 603 SDslu, 800 SDs, 0 SdLazy, 121 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 8938 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...