./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/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 0527820ce7f25e6a965a8fdfcd5a0cfce4fa7f41 ................................................................................................................................................................................................................................................................................................... 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_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/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 0527820ce7f25e6a965a8fdfcd5a0cfce4fa7f41 .......................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-02 21:46:03,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:46:03,039 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:46:03,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:46:03,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:46:03,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:46:03,046 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:46:03,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:46:03,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:46:03,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:46:03,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:46:03,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:46:03,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:46:03,049 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:46:03,050 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:46:03,050 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:46:03,051 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:46:03,051 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:46:03,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:46:03,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:46:03,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:46:03,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:46:03,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:46:03,055 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:46:03,055 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:46:03,056 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:46:03,056 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:46:03,057 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:46:03,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:46:03,057 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:46:03,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:46:03,058 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:46:03,058 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:46:03,058 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:46:03,059 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:46:03,059 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:46:03,059 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 21:46:03,066 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:46:03,066 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:46:03,067 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 21:46:03,067 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 21:46:03,067 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 21:46:03,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:46:03,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:46:03,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:46:03,069 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:46:03,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:46:03,070 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 21:46:03,070 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:46:03,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 21:46:03,070 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 21:46:03,070 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_47c32230-17aa-4c14-9ae8-caf53d613486/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 -> 0527820ce7f25e6a965a8fdfcd5a0cfce4fa7f41 [2018-12-02 21:46:03,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:46:03,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:46:03,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:46:03,096 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:46:03,096 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:46:03,097 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:03,130 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/14762bed7/a84e901719484a0991b0747b1244ebd6/FLAG42875a8ae [2018-12-02 21:46:03,585 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:46:03,585 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:03,592 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/14762bed7/a84e901719484a0991b0747b1244ebd6/FLAG42875a8ae [2018-12-02 21:46:03,601 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/14762bed7/a84e901719484a0991b0747b1244ebd6 [2018-12-02 21:46:03,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:46:03,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:46:03,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:46:03,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:46:03,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:46:03,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72da7353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03, skipping insertion in model container [2018-12-02 21:46:03,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:46:03,636 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:46:03,792 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:46:03,799 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:46:03,866 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:46:03,898 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:46:03,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03 WrapperNode [2018-12-02 21:46:03,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:46:03,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:46:03,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:46:03,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:46:03,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:46:03,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:46:03,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:46:03,935 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:46:03,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... [2018-12-02 21:46:03,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:46:03,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:46:03,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:46:03,959 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:46:03,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:46:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 21:46:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 21:46:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-12-02 21:46:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-12-02 21:46:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-02 21:46:03,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-02 21:46:03,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 21:46:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 21:46:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 21:46:03,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:46:03,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:46:04,000 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 21:46:04,069 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-02 21:46:04,069 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_inc_returnLabel [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_dec_returnLabel [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_dec_returnLabel#2 [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_inc_returnLabel#2 [2018-12-02 21:46:04,070 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-02 21:46:04,116 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-02 21:46:04,116 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-02 21:46:04,116 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-02 21:46:04,117 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-02 21:46:04,164 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:46:04,164 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-02 21:46:04,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:04 BoogieIcfgContainer [2018-12-02 21:46:04,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:46:04,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:46:04,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:46:04,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:46:04,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:46:03" (1/3) ... [2018-12-02 21:46:04,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180e1320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:46:04, skipping insertion in model container [2018-12-02 21:46:04,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:03" (2/3) ... [2018-12-02 21:46:04,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180e1320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:46:04, skipping insertion in model container [2018-12-02 21:46:04,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:04" (3/3) ... [2018-12-02 21:46:04,169 INFO L112 eAbstractionObserver]: Analyzing ICFG 34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,190 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_dec_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_inc_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,191 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_dec_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_inc_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,193 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,194 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,195 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,196 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,196 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:04,201 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 21:46:04,201 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:46:04,207 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-02 21:46:04,220 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-02 21:46:04,238 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:46:04,238 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:46:04,238 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:46:04,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:46:04,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:46:04,238 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:46:04,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:46:04,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:46:04,244 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40places, 44 transitions [2018-12-02 21:46:04,255 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) [2018-12-02 21:46:04,258 INFO L168 Benchmark]: Toolchain (without parser) took 655.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -76.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:04,259 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:46:04,259 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -120.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:04,260 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.14 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. [2018-12-02 21:46:04,260 INFO L168 Benchmark]: Boogie Preprocessor took 24.29 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. [2018-12-02 21:46:04,260 INFO L168 Benchmark]: RCFGBuilder took 205.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:04,261 INFO L168 Benchmark]: TraceAbstraction took 92.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:04,263 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -120.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.29 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 205.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 92.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 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 0.1.23-635dfa2 [2018-12-02 21:46:05,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 21:46:05,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 21:46:05,639 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 21:46:05,639 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 21:46:05,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 21:46:05,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 21:46:05,641 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 21:46:05,642 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 21:46:05,643 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 21:46:05,643 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 21:46:05,644 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 21:46:05,644 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 21:46:05,645 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 21:46:05,646 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 21:46:05,646 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 21:46:05,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 21:46:05,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 21:46:05,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 21:46:05,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 21:46:05,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 21:46:05,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 21:46:05,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 21:46:05,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 21:46:05,652 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 21:46:05,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 21:46:05,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 21:46:05,653 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 21:46:05,654 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 21:46:05,654 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 21:46:05,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 21:46:05,655 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 21:46:05,655 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 21:46:05,655 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 21:46:05,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 21:46:05,656 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 21:46:05,656 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 21:46:05,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 21:46:05,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 21:46:05,667 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 21:46:05,667 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 21:46:05,667 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 21:46:05,667 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 21:46:05,667 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 21:46:05,667 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 21:46:05,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 21:46:05,668 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 21:46:05,668 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 21:46:05,669 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 21:46:05,670 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 21:46:05,670 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 21:46:05,670 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 21:46:05,670 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 21:46:05,670 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 21:46:05,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:46:05,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 21:46:05,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 21:46:05,672 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 21:46:05,672 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 21:46:05,672 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 21:46:05,672 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 21:46:05,672 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_47c32230-17aa-4c14-9ae8-caf53d613486/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 -> 0527820ce7f25e6a965a8fdfcd5a0cfce4fa7f41 [2018-12-02 21:46:05,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 21:46:05,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 21:46:05,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 21:46:05,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 21:46:05,705 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 21:46:05,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:05,740 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/df13366c6/94b3c1e13e914af19d3e453cccf9aa05/FLAG4a822da79 [2018-12-02 21:46:06,115 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 21:46:06,115 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/sv-benchmarks/c/pthread-ext/34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:06,123 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/df13366c6/94b3c1e13e914af19d3e453cccf9aa05/FLAG4a822da79 [2018-12-02 21:46:06,482 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/data/df13366c6/94b3c1e13e914af19d3e453cccf9aa05 [2018-12-02 21:46:06,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 21:46:06,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 21:46:06,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 21:46:06,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 21:46:06,487 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 21:46:06,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375cb835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06, skipping insertion in model container [2018-12-02 21:46:06,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 21:46:06,512 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 21:46:06,679 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:46:06,688 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 21:46:06,714 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 21:46:06,791 INFO L195 MainTranslator]: Completed translation [2018-12-02 21:46:06,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06 WrapperNode [2018-12-02 21:46:06,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 21:46:06,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 21:46:06,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 21:46:06,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 21:46:06,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 21:46:06,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 21:46:06,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 21:46:06,830 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 21:46:06,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... [2018-12-02 21:46:06,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 21:46:06,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 21:46:06,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 21:46:06,849 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 21:46:06,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47c32230-17aa-4c14-9ae8-caf53d613486/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-12-02 21:46:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-02 21:46:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 21:46:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-12-02 21:46:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 21:46:06,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 21:46:06,882 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 21:46:06,958 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-02 21:46:06,958 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_inc_returnLabel [2018-12-02 21:46:06,959 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_dec_returnLabel [2018-12-02 21:46:06,959 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-02 21:46:06,959 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-02 21:46:06,959 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_dec_returnLabel#2 [2018-12-02 21:46:06,960 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_inc_returnLabel#2 [2018-12-02 21:46:06,960 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-02 21:46:07,014 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-02 21:46:07,015 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-02 21:46:07,015 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-02 21:46:07,016 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-02 21:46:07,073 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 21:46:07,073 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-02 21:46:07,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:07 BoogieIcfgContainer [2018-12-02 21:46:07,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 21:46:07,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 21:46:07,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 21:46:07,075 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 21:46:07,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:46:06" (1/3) ... [2018-12-02 21:46:07,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbb88cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:46:07, skipping insertion in model container [2018-12-02 21:46:07,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:46:06" (2/3) ... [2018-12-02 21:46:07,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bbb88cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:46:07, skipping insertion in model container [2018-12-02 21:46:07,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:46:07" (3/3) ... [2018-12-02 21:46:07,077 INFO L112 eAbstractionObserver]: Analyzing ICFG 34_double_lock_p2_vs_true-unreach-call.i [2018-12-02 21:46:07,096 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,096 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,096 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,096 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_dec_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,097 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_inc_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_dec_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,098 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_inc_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,099 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,100 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,101 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,102 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,102 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,102 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,102 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 21:46:07,106 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 21:46:07,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 21:46:07,111 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-02 21:46:07,121 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-02 21:46:07,134 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 21:46:07,135 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 21:46:07,135 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 21:46:07,135 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 21:46:07,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 21:46:07,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 21:46:07,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 21:46:07,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 21:46:07,135 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 21:46:07,140 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39places, 43 transitions [2018-12-02 21:46:07,150 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) [2018-12-02 21:46:07,152 INFO L168 Benchmark]: Toolchain (without parser) took 668.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -102.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:46:07,153 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 21:46:07,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:07,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.23 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:07,154 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 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. [2018-12-02 21:46:07,154 INFO L168 Benchmark]: RCFGBuilder took 224.65 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:07,154 INFO L168 Benchmark]: TraceAbstraction took 78.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-02 21:46:07,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.23 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.47 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 224.65 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 78.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_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...