./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/01_inc.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_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/01_inc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 4d91aa845889f03c833da32b972f2eb6326d7db9 ....................................................................................................................................................................................................................................... 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_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/01_inc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 4d91aa845889f03c833da32b972f2eb6326d7db9 ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr1 --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:50,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:50,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:50,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:50,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:50,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:50,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:50,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:50,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:50,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:50,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:50,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:50,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:50,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:50,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:50,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:50,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:50,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:50,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:50,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:50,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:50,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:50,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:50,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:50,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:50,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:50,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:50,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:50,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:50,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:50,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:50,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:50,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:50,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:50,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:50,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:50,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:50,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:50,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:50,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:50,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:50,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:50,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:50,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:50,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:50,841 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:50,842 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:50,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:50,843 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:50,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:50,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:50,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:50,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:50,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:50,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:50,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:50,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:50,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:50,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:50,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:50,847 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:50,848 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_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 -> 4d91aa845889f03c833da32b972f2eb6326d7db9 [2019-10-22 11:22:50,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:50,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:50,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:50,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:50,897 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:50,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/../../sv-benchmarks/c/pthread-ext/01_inc.i [2019-10-22 11:22:50,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/63b8f3cfb/e3aa6fec564c4a098569e41f7fa4858d/FLAGfba206d44 [2019-10-22 11:22:51,370 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:51,374 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/sv-benchmarks/c/pthread-ext/01_inc.i [2019-10-22 11:22:51,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/63b8f3cfb/e3aa6fec564c4a098569e41f7fa4858d/FLAGfba206d44 [2019-10-22 11:22:51,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/63b8f3cfb/e3aa6fec564c4a098569e41f7fa4858d [2019-10-22 11:22:51,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:51,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:51,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:51,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:51,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:51,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:51" (1/1) ... [2019-10-22 11:22:51,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef50581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:51, skipping insertion in model container [2019-10-22 11:22:51,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:51" (1/1) ... [2019-10-22 11:22:51,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:51,752 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:52,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:52,204 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:52,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:52,331 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:52,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52 WrapperNode [2019-10-22 11:22:52,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:52,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:52,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:52,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:52,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:52,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:52,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:52,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:52,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... [2019-10-22 11:22:52,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:52,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:52,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:52,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:52,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 11:22:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 11:22:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 11:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:52,463 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 11:22:52,576 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-10-22 11:22:52,577 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-10-22 11:22:52,577 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-10-22 11:22:52,739 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:52,739 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:22:52,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:52 BoogieIcfgContainer [2019-10-22 11:22:52,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:52,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:52,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:52,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:51" (1/3) ... [2019-10-22 11:22:52,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec42113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:52, skipping insertion in model container [2019-10-22 11:22:52,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:52" (2/3) ... [2019-10-22 11:22:52,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec42113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:52, skipping insertion in model container [2019-10-22 11:22:52,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:52" (3/3) ... [2019-10-22 11:22:52,748 INFO L109 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2019-10-22 11:22:52,772 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,772 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,772 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,773 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,773 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,773 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,773 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,774 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,774 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,774 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,774 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,775 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,775 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:52,781 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:22:52,781 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:52,788 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:22:52,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:22:52,815 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:52,815 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:52,815 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:52,815 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:52,816 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:52,816 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:52,816 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:52,816 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:52,823 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 30 transitions [2019-10-22 11:22:52,833 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_thr1 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 11:22:52,837 INFO L168 Benchmark]: Toolchain (without parser) took 1137.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:52,837 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:52,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -222.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:52,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:52,839 INFO L168 Benchmark]: Boogie Preprocessor took 27.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:52,839 INFO L168 Benchmark]: RCFGBuilder took 330.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:52,840 INFO L168 Benchmark]: TraceAbstraction took 94.13 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:52,842 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -222.6 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 94.13 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: 6.8 MB). Peak memory consumption was 6.8 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_thr1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr1: 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 11:22:54,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:54,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:54,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:54,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:54,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:54,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:54,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:54,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:54,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:54,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:54,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:54,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:54,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:54,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:54,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:54,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:54,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:54,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:54,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:54,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:54,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:54,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:54,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:54,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:54,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:54,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:54,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:54,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:54,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:54,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:54,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:54,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:54,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:54,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:54,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:54,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:54,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:54,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:54,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:54,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:54,866 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:54,876 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:54,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:54,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:54,877 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:54,878 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:54,878 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:54,878 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:54,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:54,878 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:54,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:54,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:54,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:54,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:54,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:54,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:54,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:54,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:54,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:54,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:54,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:54,882 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:54,882 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:54,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:54,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:54,883 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_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 -> 4d91aa845889f03c833da32b972f2eb6326d7db9 [2019-10-22 11:22:54,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:54,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:54,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:54,921 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:54,921 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:54,922 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/../../sv-benchmarks/c/pthread-ext/01_inc.i [2019-10-22 11:22:54,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/c4b21c753/d4ca5969545448609f680e41e44c3e4a/FLAG7bbd96fcf [2019-10-22 11:22:55,425 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:55,425 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/sv-benchmarks/c/pthread-ext/01_inc.i [2019-10-22 11:22:55,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/c4b21c753/d4ca5969545448609f680e41e44c3e4a/FLAG7bbd96fcf [2019-10-22 11:22:55,940 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/bin/utaipan/data/c4b21c753/d4ca5969545448609f680e41e44c3e4a [2019-10-22 11:22:55,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:55,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:55,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:55,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:55,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:55,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:55" (1/1) ... [2019-10-22 11:22:55,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311aec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:55, skipping insertion in model container [2019-10-22 11:22:55,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:55" (1/1) ... [2019-10-22 11:22:55,957 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:55,994 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:56,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:56,328 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:56,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:56,424 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:56,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56 WrapperNode [2019-10-22 11:22:56,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:56,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:56,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:56,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:56,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:56,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:56,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:56,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:56,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... [2019-10-22 11:22:56,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:56,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:56,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:56,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:56,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_45937ee5-9e51-4fae-8c8c-40f329c7db6c/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 11:22:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 11:22:56,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 11:22:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:22:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:56,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:56,547 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 11:22:56,661 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-10-22 11:22:56,662 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-10-22 11:22:56,662 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-10-22 11:22:56,740 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:56,740 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:22:56,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:56 BoogieIcfgContainer [2019-10-22 11:22:56,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:56,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:56,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:56,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:56,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:55" (1/3) ... [2019-10-22 11:22:56,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d87dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:56, skipping insertion in model container [2019-10-22 11:22:56,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:56" (2/3) ... [2019-10-22 11:22:56,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51d87dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:56, skipping insertion in model container [2019-10-22 11:22:56,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:56" (3/3) ... [2019-10-22 11:22:56,750 INFO L109 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2019-10-22 11:22:56,788 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,788 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,788 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,788 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,789 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,789 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,789 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,789 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,790 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,790 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,790 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,790 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,791 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:22:56,807 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:22:56,807 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:56,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:22:56,836 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:22:56,852 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:56,853 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:56,853 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:56,853 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:56,853 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:56,853 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:56,853 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:56,853 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:56,862 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 30 transitions [2019-10-22 11:22:56,872 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_thr1 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 11:22:56,875 INFO L168 Benchmark]: Toolchain (without parser) took 931.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -72.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:56,875 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:56,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -105.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:56,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:56,877 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:56,878 INFO L168 Benchmark]: RCFGBuilder took 249.96 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:56,878 INFO L168 Benchmark]: TraceAbstraction took 131.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:56,881 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 480.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -105.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.96 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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_thr1 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr1: 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...