./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c97acbedf71345bee708d86a717fb796a6f76ada ................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c97acbedf71345bee708d86a717fb796a6f76ada .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 11:53:21,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:53:21,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:53:21,881 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:53:21,881 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:53:21,882 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:53:21,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:53:21,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:53:21,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:53:21,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:53:21,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:53:21,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:53:21,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:53:21,888 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:53:21,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:53:21,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:53:21,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:53:21,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:53:21,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:53:21,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:53:21,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:53:21,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:53:21,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:53:21,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:53:21,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:53:21,897 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:53:21,898 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:53:21,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:53:21,899 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:53:21,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:53:21,900 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:53:21,901 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:53:21,901 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:53:21,901 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:53:21,902 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:53:21,903 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:53:21,903 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 11:53:21,912 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:53:21,912 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:53:21,913 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:53:21,913 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:53:21,914 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:53:21,914 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:53:21,914 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:53:21,914 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:53:21,914 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:53:21,914 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 11:53:21,914 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:53:21,915 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:53:21,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:53:21,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:53:21,916 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 11:53:21,917 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:53:21,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 11:53:21,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c97acbedf71345bee708d86a717fb796a6f76ada [2018-11-23 11:53:21,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:53:21,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:53:21,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:53:21,954 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:53:21,954 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:53:21,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:21,999 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/7d62676ae/31ac3123fe0d4b3fb5692485ecf91db9/FLAG3812979bb [2018-11-23 11:53:22,388 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:53:22,389 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:22,399 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/7d62676ae/31ac3123fe0d4b3fb5692485ecf91db9/FLAG3812979bb [2018-11-23 11:53:22,781 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/7d62676ae/31ac3123fe0d4b3fb5692485ecf91db9 [2018-11-23 11:53:22,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:53:22,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:53:22,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:53:22,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:53:22,787 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:53:22,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:22" (1/1) ... [2018-11-23 11:53:22,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b51e347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:22, skipping insertion in model container [2018-11-23 11:53:22,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:22" (1/1) ... [2018-11-23 11:53:22,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:53:22,823 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:53:23,038 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:53:23,046 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:53:23,120 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:53:23,157 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:53:23,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23 WrapperNode [2018-11-23 11:53:23,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:53:23,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:53:23,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:53:23,158 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:53:23,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:53:23,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:53:23,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:53:23,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:53:23,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... [2018-11-23 11:53:23,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:53:23,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:53:23,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:53:23,202 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:53:23,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-23 11:53:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 11:53:23,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:53:23,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:53:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:53:23,239 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 11:53:23,418 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:53:23,418 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 11:53:23,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:23 BoogieIcfgContainer [2018-11-23 11:53:23,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:53:23,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:53:23,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:53:23,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:53:23,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:53:22" (1/3) ... [2018-11-23 11:53:23,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8401b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:23, skipping insertion in model container [2018-11-23 11:53:23,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:23" (2/3) ... [2018-11-23 11:53:23,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8401b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:23, skipping insertion in model container [2018-11-23 11:53:23,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:23" (3/3) ... [2018-11-23 11:53:23,424 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:23,451 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,451 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,451 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,452 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,453 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:23,458 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 11:53:23,458 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:53:23,463 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 11:53:23,472 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 11:53:23,491 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:53:23,492 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:53:23,492 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:53:23,492 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:53:23,492 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:53:23,492 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:53:23,492 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:53:23,492 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:53:23,493 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:53:23,499 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50places, 50 transitions [2018-11-23 11:53:23,517 FATAL L292 ToolchainWalker]: 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_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2018-11-23 11:53:23,520 INFO L168 Benchmark]: Toolchain (without parser) took 736.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -121.0 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:23,522 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:53:23,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:23,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.66 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:23,523 INFO L168 Benchmark]: Boogie Preprocessor took 17.60 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. [2018-11-23 11:53:23,523 INFO L168 Benchmark]: RCFGBuilder took 217.22 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:23,524 INFO L168 Benchmark]: TraceAbstraction took 100.25 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. [2018-11-23 11:53:23,527 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -155.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.66 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.60 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 217.22 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 100.25 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_thr2 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 11:53:25,010 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:53:25,011 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:53:25,019 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:53:25,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:53:25,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:53:25,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:53:25,022 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:53:25,023 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:53:25,023 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:53:25,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:53:25,024 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:53:25,025 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:53:25,026 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:53:25,027 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:53:25,027 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:53:25,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:53:25,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:53:25,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:53:25,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:53:25,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:53:25,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:53:25,035 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:53:25,035 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:53:25,036 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:53:25,036 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:53:25,037 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:53:25,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:53:25,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:53:25,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:53:25,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:53:25,040 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:53:25,040 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:53:25,040 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:53:25,041 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:53:25,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:53:25,041 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 11:53:25,052 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:53:25,052 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:53:25,053 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:53:25,053 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:53:25,053 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:53:25,053 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:53:25,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:53:25,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:53:25,055 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:53:25,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:53:25,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:53:25,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:53:25,056 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:53:25,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:53:25,056 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:53:25,056 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:53:25,057 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c97acbedf71345bee708d86a717fb796a6f76ada [2018-11-23 11:53:25,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:53:25,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:53:25,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:53:25,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:53:25,103 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:53:25,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:25,146 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/a26223fcc/521c3f0be40a41b6b0419b32c8a49654/FLAG09e97f797 [2018-11-23 11:53:25,501 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:53:25,501 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/sv-benchmarks/c/pthread-nondet/nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:25,510 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/a26223fcc/521c3f0be40a41b6b0419b32c8a49654/FLAG09e97f797 [2018-11-23 11:53:25,520 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/data/a26223fcc/521c3f0be40a41b6b0419b32c8a49654 [2018-11-23 11:53:25,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:53:25,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:53:25,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:53:25,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:53:25,528 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:53:25,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:25,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7d0535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25, skipping insertion in model container [2018-11-23 11:53:25,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:25,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:53:25,571 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:53:25,843 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:53:25,857 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:53:25,895 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:53:25,947 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:53:25,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25 WrapperNode [2018-11-23 11:53:25,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:53:25,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:53:25,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:53:25,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:53:25,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:53:26,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:53:26,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:53:26,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:53:26,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... [2018-11-23 11:53:26,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:53:26,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:53:26,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:53:26,046 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:53:26,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_38673268-6d6d-42ab-8877-48aa84ee0f09/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:53:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 11:53:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-23 11:53:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-23 11:53:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 11:53:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 11:53:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 11:53:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 11:53:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:53:26,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:53:26,082 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 11:53:26,276 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:53:26,277 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 11:53:26,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:26 BoogieIcfgContainer [2018-11-23 11:53:26,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:53:26,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:53:26,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:53:26,281 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:53:26,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:53:25" (1/3) ... [2018-11-23 11:53:26,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16977e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:26, skipping insertion in model container [2018-11-23 11:53:26,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:53:25" (2/3) ... [2018-11-23 11:53:26,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16977e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:53:26, skipping insertion in model container [2018-11-23 11:53:26,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:53:26" (3/3) ... [2018-11-23 11:53:26,284 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound_true-unreach-call.i [2018-11-23 11:53:26,306 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,307 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,308 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,308 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,308 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,308 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,308 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,309 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 11:53:26,318 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 11:53:26,318 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:53:26,323 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 11:53:26,333 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 11:53:26,351 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:53:26,352 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:53:26,352 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:53:26,352 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:53:26,352 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:53:26,352 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:53:26,352 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:53:26,353 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:53:26,353 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:53:26,359 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50places, 50 transitions [2018-11-23 11:53:26,374 FATAL L292 ToolchainWalker]: 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_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2018-11-23 11:53:26,377 INFO L168 Benchmark]: Toolchain (without parser) took 853.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -117.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:53:26,378 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:53:26,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.53 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 911.1 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:26,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 911.1 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:26,380 INFO L168 Benchmark]: Boogie Preprocessor took 17.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 11:53:26,380 INFO L168 Benchmark]: RCFGBuilder took 231.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:26,381 INFO L168 Benchmark]: TraceAbstraction took 98.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-23 11:53:26,383 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 422.53 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 911.1 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 911.1 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 98.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 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_thr2 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...