./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-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_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa6429411c5090a10b40d28bbfd7a17e72c05c8b .................................................................................................................................................................................................................................................. 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_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa6429411c5090a10b40d28bbfd7a17e72c05c8b .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:02:19,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:02:19,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:02:19,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:02:19,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:02:19,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:02:19,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:02:19,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:02:19,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:02:19,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:02:19,511 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:02:19,511 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:02:19,512 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:02:19,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:02:19,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:02:19,513 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:02:19,514 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:02:19,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:02:19,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:02:19,518 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:02:19,518 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:02:19,519 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:02:19,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:02:19,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:02:19,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:02:19,521 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:02:19,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:02:19,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:02:19,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:02:19,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:02:19,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:02:19,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:02:19,524 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:02:19,524 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:02:19,525 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:02:19,525 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:02:19,525 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 14:02:19,532 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:02:19,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:02:19,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:02:19,533 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:02:19,533 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:02:19,533 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:02:19,533 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:02:19,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:02:19,534 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:02:19,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:02:19,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:02:19,536 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:02:19,536 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:02:19,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:02:19,537 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_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa6429411c5090a10b40d28bbfd7a17e72c05c8b [2018-11-23 14:02:19,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:02:19,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:02:19,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:02:19,572 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:02:19,573 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:02:19,573 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:19,607 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/64da822ff/c3ef363993c2446da97e73613ad3811b/FLAGea95cf769 [2018-11-23 14:02:20,030 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:02:20,031 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:20,038 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/64da822ff/c3ef363993c2446da97e73613ad3811b/FLAGea95cf769 [2018-11-23 14:02:20,050 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/64da822ff/c3ef363993c2446da97e73613ad3811b [2018-11-23 14:02:20,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:02:20,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:02:20,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:02:20,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:02:20,057 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:02:20,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512ac9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20, skipping insertion in model container [2018-11-23 14:02:20,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:02:20,099 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:02:20,327 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:02:20,335 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:02:20,415 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:02:20,445 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:02:20,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20 WrapperNode [2018-11-23 14:02:20,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:02:20,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:02:20,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:02:20,446 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:02:20,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:02:20,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:02:20,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:02:20,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:02:20,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... [2018-11-23 14:02:20,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:02:20,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:02:20,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:02:20,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:02:20,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:02:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:02:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-23 14:02:20,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-23 14:02:20,537 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 14:02:20,538 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 14:02:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:02:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:02:20,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:02:20,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:02:20,539 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 14:02:20,717 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:02:20,717 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 14:02:20,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:20 BoogieIcfgContainer [2018-11-23 14:02:20,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:02:20,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:02:20,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:02:20,721 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:02:20,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:20" (1/3) ... [2018-11-23 14:02:20,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b29e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:20, skipping insertion in model container [2018-11-23 14:02:20,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:20" (2/3) ... [2018-11-23 14:02:20,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b29e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:20, skipping insertion in model container [2018-11-23 14:02:20,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:20" (3/3) ... [2018-11-23 14:02:20,723 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,749 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,750 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,750 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,750 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,750 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,750 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,751 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,751 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,751 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,751 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,751 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,752 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,752 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,752 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,752 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,752 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:20,757 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 14:02:20,758 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:02:20,764 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 14:02:20,773 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 14:02:20,790 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:02:20,790 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:02:20,790 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:02:20,790 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:02:20,790 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:02:20,791 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:02:20,791 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:02:20,791 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:02:20,791 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:02:20,797 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50places, 50 transitions [2018-11-23 14:02:20,812 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 14:02:20,815 INFO L168 Benchmark]: Toolchain (without parser) took 761.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -103.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:20,816 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:02:20,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:20,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.84 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 14:02:20,817 INFO L168 Benchmark]: Boogie Preprocessor took 15.58 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 14:02:20,818 INFO L168 Benchmark]: RCFGBuilder took 226.72 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:20,818 INFO L168 Benchmark]: TraceAbstraction took 96.19 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:20,820 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 391.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.84 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 15.58 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 226.72 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 96.19 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 14:02:22,257 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:02:22,259 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:02:22,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:02:22,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:02:22,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:02:22,268 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:02:22,270 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:02:22,271 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:02:22,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:02:22,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:02:22,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:02:22,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:02:22,273 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:02:22,274 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:02:22,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:02:22,275 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:02:22,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:02:22,277 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:02:22,278 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:02:22,279 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:02:22,280 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:02:22,281 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:02:22,281 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:02:22,282 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:02:22,282 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:02:22,283 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:02:22,283 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:02:22,284 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:02:22,285 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:02:22,285 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:02:22,285 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:02:22,285 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:02:22,286 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:02:22,286 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:02:22,287 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:02:22,287 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 14:02:22,296 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:02:22,297 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:02:22,297 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:02:22,297 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:02:22,298 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:02:22,298 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:02:22,298 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:02:22,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:02:22,298 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:02:22,298 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 14:02:22,299 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:02:22,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:02:22,300 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:02:22,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 14:02:22,301 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 14:02:22,302 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_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa6429411c5090a10b40d28bbfd7a17e72c05c8b [2018-11-23 14:02:22,331 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:02:22,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:02:22,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:02:22,344 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:02:22,344 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:02:22,345 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:22,385 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/dbcad2ca8/e74d0bf6623c4518b54a164423e365ea/FLAG327a189c2 [2018-11-23 14:02:22,811 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:02:22,811 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/sv-benchmarks/c/pthread-nondet/nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:22,818 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/dbcad2ca8/e74d0bf6623c4518b54a164423e365ea/FLAG327a189c2 [2018-11-23 14:02:22,828 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/data/dbcad2ca8/e74d0bf6623c4518b54a164423e365ea [2018-11-23 14:02:22,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:02:22,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:02:22,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:02:22,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:02:22,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:02:22,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:22" (1/1) ... [2018-11-23 14:02:22,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255f79a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:22, skipping insertion in model container [2018-11-23 14:02:22,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:22" (1/1) ... [2018-11-23 14:02:22,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:02:22,878 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:02:23,112 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:02:23,123 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:02:23,156 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:02:23,206 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:02:23,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23 WrapperNode [2018-11-23 14:02:23,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:02:23,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:02:23,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:02:23,207 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:02:23,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:02:23,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:02:23,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:02:23,279 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:02:23,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... [2018-11-23 14:02:23,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:02:23,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:02:23,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:02:23,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:02:23,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8bdf0c49-8304-4537-961a-55ba48a37de1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-23 14:02:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-23 14:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-23 14:02:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-23 14:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:02:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 14:02:23,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:02:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:02:23,338 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 14:02:23,526 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:02:23,526 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 14:02:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:23 BoogieIcfgContainer [2018-11-23 14:02:23,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:02:23,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:02:23,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:02:23,530 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:02:23,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:22" (1/3) ... [2018-11-23 14:02:23,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac24c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:23, skipping insertion in model container [2018-11-23 14:02:23,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23" (2/3) ... [2018-11-23 14:02:23,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac24c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:23, skipping insertion in model container [2018-11-23 14:02:23,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:23" (3/3) ... [2018-11-23 14:02:23,532 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound_false-unreach-call.i [2018-11-23 14:02:23,552 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,552 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,552 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,553 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,553 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,553 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,553 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,553 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,554 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,555 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:02:23,560 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 14:02:23,560 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:02:23,565 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 14:02:23,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 14:02:23,590 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:02:23,591 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:02:23,591 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:02:23,591 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:02:23,591 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:02:23,591 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:02:23,591 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:02:23,591 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:02:23,591 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:02:23,596 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50places, 50 transitions [2018-11-23 14:02:23,611 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:340) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 14:02:23,613 INFO L168 Benchmark]: Toolchain (without parser) took 781.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -114.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:02:23,614 INFO L168 Benchmark]: CDTParser took 0.16 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 14:02:23,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.90 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 915.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:23,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 915.6 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:23,616 INFO L168 Benchmark]: Boogie Preprocessor took 20.62 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 14:02:23,616 INFO L168 Benchmark]: RCFGBuilder took 226.76 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:23,617 INFO L168 Benchmark]: TraceAbstraction took 85.53 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. [2018-11-23 14:02:23,619 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.90 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 915.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 915.6 MB in the beginning and 1.1 GB in the end (delta: -180.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.62 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 226.76 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: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 85.53 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. * 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...