./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2014.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_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/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 f9585513ea3d4c8794f0f67c1732696b04d1d743 ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2014.i -s /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/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 f9585513ea3d4c8794f0f67c1732696b04d1d743 ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:48,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:48,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:48,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:48,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:48,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:48,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:48,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:48,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:48,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:48,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:48,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:48,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:48,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:48,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:48,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:48,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:48,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:48,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:48,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:48,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:48,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:48,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:48,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:48,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:48,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:48,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:48,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:48,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:48,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:48,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:48,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:48,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:48,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:48,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:48,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:48,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:48,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:48,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:48,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:48,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:48,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:48,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:48,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:48,603 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:48,603 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:48,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:48,604 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:48,604 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:48,604 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:48,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:48,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:48,605 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:48,605 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:48,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:48,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:48,608 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:48,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:48,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:48,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:48,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:48,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:48,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:48,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:48,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:48,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:48,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:48,610 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:48,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:48,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:48,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:48,611 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_73b74c41-65ab-4dbc-becd-88969c1052c2/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 -> f9585513ea3d4c8794f0f67c1732696b04d1d743 [2019-10-22 11:25:48,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:48,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:48,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:48,656 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:48,656 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:48,657 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2019-10-22 11:25:48,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/3ac7284a1/731e4045abb648219e9dca610a96404f/FLAG292ed6dfc [2019-10-22 11:25:49,146 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:49,146 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/sv-benchmarks/c/pthread-lit/fkp2014.i [2019-10-22 11:25:49,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/3ac7284a1/731e4045abb648219e9dca610a96404f/FLAG292ed6dfc [2019-10-22 11:25:49,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/3ac7284a1/731e4045abb648219e9dca610a96404f [2019-10-22 11:25:49,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:49,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:49,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:49,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:49,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:49,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75215882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49, skipping insertion in model container [2019-10-22 11:25:49,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,184 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:49,224 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:49,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:49,620 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:49,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:49,730 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:49,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49 WrapperNode [2019-10-22 11:25:49,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:49,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:49,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:49,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:49,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:49,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:49,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:49,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... [2019-10-22 11:25:49,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:49,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:49,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:49,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:49,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/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 11:25:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:25:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:25:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-10-22 11:25:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-10-22 11:25:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:25:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:49,858 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 11:25:50,175 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:50,175 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-22 11:25:50,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50 BoogieIcfgContainer [2019-10-22 11:25:50,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:50,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:50,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:50,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:50,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:49" (1/3) ... [2019-10-22 11:25:50,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cad1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:49" (2/3) ... [2019-10-22 11:25:50,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cad1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:50, skipping insertion in model container [2019-10-22 11:25:50,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:50" (3/3) ... [2019-10-22 11:25:50,185 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2019-10-22 11:25:50,250 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,253 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,253 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,253 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,254 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,254 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,254 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,256 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,256 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,256 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,256 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,257 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,257 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,257 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:50,261 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:25:50,261 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:50,269 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:25:50,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:25:50,299 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:50,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:50,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:50,300 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:50,300 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:50,300 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:50,300 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:50,300 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:50,314 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions [2019-10-22 11:25:50,328 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:390) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:25:50,345 INFO L168 Benchmark]: Toolchain (without parser) took 1174.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:50,352 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:50,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:50,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.04 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:50,354 INFO L168 Benchmark]: Boogie Preprocessor took 23.38 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:50,355 INFO L168 Benchmark]: RCFGBuilder took 381.83 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:50,356 INFO L168 Benchmark]: TraceAbstraction took 165.38 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:50,362 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 957.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 560.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.04 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.38 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 381.83 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 165.38 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:52,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:52,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:52,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:52,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:52,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:52,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:52,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:52,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:52,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:52,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:52,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:52,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:52,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:52,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:52,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:52,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:52,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:52,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:52,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:52,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:52,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:52,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:52,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:52,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:52,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:52,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:52,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:52,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:52,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:52,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:52,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:52,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:52,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:52,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:52,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:52,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:52,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:52,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:52,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:52,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:52,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:25:52,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:52,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:52,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:52,474 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:52,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:52,474 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:52,474 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:52,474 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:52,474 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:52,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:52,475 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:52,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:25:52,476 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:52,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:52,477 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:25:52,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:52,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:52,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:52,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:52,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:52,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:25:52,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:52,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:52,484 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_73b74c41-65ab-4dbc-becd-88969c1052c2/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 -> f9585513ea3d4c8794f0f67c1732696b04d1d743 [2019-10-22 11:25:52,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:52,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:52,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:52,533 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:52,533 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:52,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/../../sv-benchmarks/c/pthread-lit/fkp2014.i [2019-10-22 11:25:52,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/a281ab2e6/da270a9b2ea64ee8ba373b57edadbf5b/FLAGa41190c7b [2019-10-22 11:25:53,001 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:53,001 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/sv-benchmarks/c/pthread-lit/fkp2014.i [2019-10-22 11:25:53,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/a281ab2e6/da270a9b2ea64ee8ba373b57edadbf5b/FLAGa41190c7b [2019-10-22 11:25:53,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/bin/utaipan/data/a281ab2e6/da270a9b2ea64ee8ba373b57edadbf5b [2019-10-22 11:25:53,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:53,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:53,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:53,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:53,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:53,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:53,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c277aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53, skipping insertion in model container [2019-10-22 11:25:53,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:53,374 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:53,407 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:53,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:53,850 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:53,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:53,948 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:53,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53 WrapperNode [2019-10-22 11:25:53,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:53,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:53,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:53,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:53,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:53,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:53,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:53,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:53,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:53,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:53,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:53,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... [2019-10-22 11:25:54,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:54,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:54,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:54,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:54,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_73b74c41-65ab-4dbc-becd-88969c1052c2/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 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2019-10-22 11:25:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2019-10-22 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:25:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:25:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:54,077 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 11:25:54,339 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:54,339 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-10-22 11:25:54,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:54 BoogieIcfgContainer [2019-10-22 11:25:54,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:54,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:54,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:54,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:54,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:53" (1/3) ... [2019-10-22 11:25:54,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3252b6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:54, skipping insertion in model container [2019-10-22 11:25:54,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:53" (2/3) ... [2019-10-22 11:25:54,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3252b6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:54, skipping insertion in model container [2019-10-22 11:25:54,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:54" (3/3) ... [2019-10-22 11:25:54,346 INFO L109 eAbstractionObserver]: Analyzing ICFG fkp2014.i [2019-10-22 11:25:54,380 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,380 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,380 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,380 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,381 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_inct_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,381 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,381 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,381 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,381 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,382 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,382 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,382 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_incs_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,382 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,382 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:25:54,392 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:25:54,392 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:54,399 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:25:54,409 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:25:54,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:54,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:54,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:54,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:54,422 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:54,422 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:54,422 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:54,423 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:54,429 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 40 transitions [2019-10-22 11:25:54,440 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:390) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:25:54,446 INFO L168 Benchmark]: Toolchain (without parser) took 1084.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:54,447 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:54,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:54,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.12 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:54,450 INFO L168 Benchmark]: Boogie Preprocessor took 38.67 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 11:25:54,451 INFO L168 Benchmark]: RCFGBuilder took 311.22 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:54,452 INFO L168 Benchmark]: TraceAbstraction took 101.14 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:54,454 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 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 588.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.12 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.67 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 311.22 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 101.14 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...