./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/01_inc_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_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bbdae6b0a023f51bda4bea5230be5a718dfdb4a ................................................................................................................................................................................................................................................... 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_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bbdae6b0a023f51bda4bea5230be5a718dfdb4a ......................................................................................................................................................................................................................................................... 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 0.1.23-aa41828 [2018-11-23 04:39:12,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:39:12,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:39:12,812 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:39:12,812 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:39:12,813 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:39:12,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:39:12,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:39:12,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:39:12,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:39:12,817 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:39:12,817 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:39:12,818 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:39:12,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:39:12,819 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:39:12,820 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:39:12,820 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:39:12,822 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:39:12,824 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:39:12,825 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:39:12,825 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:39:12,826 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:39:12,828 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:39:12,828 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:39:12,828 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:39:12,829 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:39:12,830 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:39:12,831 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:39:12,831 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:39:12,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:39:12,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:39:12,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:39:12,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:39:12,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:39:12,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:39:12,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:39:12,834 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:39:12,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:39:12,843 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:39:12,843 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:39:12,843 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:39:12,843 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:39:12,844 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:39:12,844 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:39:12,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:39:12,845 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:39:12,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:39:12,846 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:39:12,846 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:39:12,846 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:39:12,847 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:39:12,847 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:39:12,848 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:39:12,848 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:39:12,849 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:39:12,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:39:12,849 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:39:12,849 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbdae6b0a023f51bda4bea5230be5a718dfdb4a [2018-11-23 04:39:12,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:39:12,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:39:12,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:39:12,887 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:39:12,887 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:39:12,888 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i [2018-11-23 04:39:12,924 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/8f1a98050/80a8dc48d2f949a28b2de6fa6e49ce1c/FLAGa04e373f6 [2018-11-23 04:39:13,353 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:39:13,353 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i [2018-11-23 04:39:13,363 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/8f1a98050/80a8dc48d2f949a28b2de6fa6e49ce1c/FLAGa04e373f6 [2018-11-23 04:39:13,371 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/8f1a98050/80a8dc48d2f949a28b2de6fa6e49ce1c [2018-11-23 04:39:13,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:39:13,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:39:13,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:39:13,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:39:13,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:39:13,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c830c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13, skipping insertion in model container [2018-11-23 04:39:13,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:39:13,411 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:39:13,607 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:39:13,613 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:39:13,682 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:39:13,728 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:39:13,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13 WrapperNode [2018-11-23 04:39:13,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:39:13,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:39:13,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:39:13,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:39:13,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:39:13,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:39:13,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:39:13,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:39:13,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... [2018-11-23 04:39:13,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:39:13,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:39:13,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:39:13,783 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:39:13,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:39:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:39:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 04:39:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 04:39:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 04:39:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:39:13,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:39:13,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:39:13,838 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 04:39:13,922 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-11-23 04:39:13,922 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-11-23 04:39:13,922 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-11-23 04:39:14,013 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:39:14,013 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-23 04:39:14,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:39:14 BoogieIcfgContainer [2018-11-23 04:39:14,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:39:14,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:39:14,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:39:14,018 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:39:14,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:39:13" (1/3) ... [2018-11-23 04:39:14,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dca7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:39:14, skipping insertion in model container [2018-11-23 04:39:14,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:13" (2/3) ... [2018-11-23 04:39:14,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53dca7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:39:14, skipping insertion in model container [2018-11-23 04:39:14,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:39:14" (3/3) ... [2018-11-23 04:39:14,021 INFO L112 eAbstractionObserver]: Analyzing ICFG 01_inc_true-unreach-call.i [2018-11-23 04:39:14,045 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,045 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,045 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,045 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,046 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,046 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,046 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,046 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,047 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,047 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,047 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,047 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,047 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:14,055 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 04:39:14,056 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:39:14,062 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 04:39:14,076 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 04:39:14,097 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:39:14,098 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:39:14,098 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:39:14,098 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:39:14,098 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:39:14,098 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:39:14,098 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:39:14,098 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:39:14,105 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28places, 30 transitions [2018-11-23 04:39:14,115 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_thr1 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 04:39:14,118 INFO L168 Benchmark]: Toolchain (without parser) took 745.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -132.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:39:14,119 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:39:14,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:39:14,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.89 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 04:39:14,121 INFO L168 Benchmark]: Boogie Preprocessor took 16.99 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 04:39:14,121 INFO L168 Benchmark]: RCFGBuilder took 230.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:39:14,122 INFO L168 Benchmark]: TraceAbstraction took 103.24 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. [2018-11-23 04:39:14,124 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 955.3 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.89 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 16.99 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 230.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 103.24 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: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 04:39:15,572 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:39:15,573 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:39:15,582 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:39:15,582 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:39:15,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:39:15,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:39:15,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:39:15,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:39:15,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:39:15,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:39:15,587 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:39:15,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:39:15,588 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:39:15,589 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:39:15,589 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:39:15,590 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:39:15,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:39:15,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:39:15,593 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:39:15,594 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:39:15,594 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:39:15,596 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:39:15,596 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:39:15,596 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:39:15,597 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:39:15,597 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:39:15,598 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:39:15,598 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:39:15,599 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:39:15,599 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:39:15,600 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:39:15,600 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:39:15,600 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:39:15,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:39:15,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:39:15,601 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 04:39:15,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:39:15,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:39:15,612 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:39:15,612 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:39:15,612 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:39:15,612 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:39:15,612 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:39:15,613 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:39:15,613 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:39:15,613 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:39:15,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:39:15,613 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 04:39:15,614 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:39:15,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:39:15,615 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:39:15,616 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 04:39:15,616 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 04:39:15,617 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_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbdae6b0a023f51bda4bea5230be5a718dfdb4a [2018-11-23 04:39:15,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:39:15,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:39:15,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:39:15,659 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:39:15,659 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:39:15,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i [2018-11-23 04:39:15,696 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/b81ce4ee3/df9bd2dec25a4afc95fa999d1dc046dd/FLAG6316a5b9a [2018-11-23 04:39:16,126 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:39:16,126 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/sv-benchmarks/c/pthread-ext/01_inc_true-unreach-call.i [2018-11-23 04:39:16,133 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/b81ce4ee3/df9bd2dec25a4afc95fa999d1dc046dd/FLAG6316a5b9a [2018-11-23 04:39:16,142 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/data/b81ce4ee3/df9bd2dec25a4afc95fa999d1dc046dd [2018-11-23 04:39:16,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:39:16,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:39:16,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:39:16,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:39:16,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:39:16,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf62911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16, skipping insertion in model container [2018-11-23 04:39:16,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:39:16,183 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:39:16,398 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:39:16,406 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:39:16,436 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:39:16,515 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:39:16,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16 WrapperNode [2018-11-23 04:39:16,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:39:16,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:39:16,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:39:16,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:39:16,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:39:16,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:39:16,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:39:16,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:39:16,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... [2018-11-23 04:39:16,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:39:16,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:39:16,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:39:16,570 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:39:16,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f049f09-b3d0-4be2-85ac-c523aa5a099b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:39:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:39:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 04:39:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 04:39:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:39:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 04:39:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:39:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:39:16,614 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 04:39:16,700 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-11-23 04:39:16,700 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-11-23 04:39:16,700 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-11-23 04:39:16,831 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:39:16,831 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-23 04:39:16,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:39:16 BoogieIcfgContainer [2018-11-23 04:39:16,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:39:16,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:39:16,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:39:16,834 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:39:16,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:39:16" (1/3) ... [2018-11-23 04:39:16,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aed717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:39:16, skipping insertion in model container [2018-11-23 04:39:16,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:39:16" (2/3) ... [2018-11-23 04:39:16,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73aed717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:39:16, skipping insertion in model container [2018-11-23 04:39:16,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:39:16" (3/3) ... [2018-11-23 04:39:16,837 INFO L112 eAbstractionObserver]: Analyzing ICFG 01_inc_true-unreach-call.i [2018-11-23 04:39:16,853 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,853 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,853 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,853 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,854 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,854 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,854 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,854 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,854 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,855 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,855 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,855 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,855 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:39:16,858 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 04:39:16,858 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:39:16,863 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 04:39:16,871 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 04:39:16,885 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:39:16,885 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:39:16,885 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:39:16,886 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:39:16,886 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:39:16,886 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:39:16,886 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:39:16,886 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:39:16,886 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:39:16,890 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28places, 30 transitions [2018-11-23 04:39:16,897 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_thr1 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 04:39:16,900 INFO L168 Benchmark]: Toolchain (without parser) took 755.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -119.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:39:16,901 INFO L168 Benchmark]: CDTParser took 0.15 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 04:39:16,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:39:16,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.68 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 04:39:16,903 INFO L168 Benchmark]: Boogie Preprocessor took 21.12 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 04:39:16,903 INFO L168 Benchmark]: RCFGBuilder took 261.80 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:39:16,904 INFO L168 Benchmark]: TraceAbstraction took 67.27 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 04:39:16,906 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.68 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. * Boogie Preprocessor took 21.12 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 261.80 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 67.27 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_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:340) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...