./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 18f8c11d6085f6594f0f2021411e68b8ac706f42 ................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 18f8c11d6085f6594f0f2021411e68b8ac706f42 ..................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-11-16 00:40:06,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:40:06,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:40:06,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:40:06,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:40:06,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:40:06,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:40:06,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:40:06,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:40:06,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:40:06,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:40:06,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:40:06,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:40:06,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:40:06,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:40:06,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:40:06,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:40:06,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:40:06,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:40:06,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:40:06,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:40:06,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:40:06,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:40:06,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:40:06,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:40:06,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:40:06,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:40:06,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:40:06,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:40:06,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:40:06,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:40:06,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:40:06,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:40:06,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:40:06,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:40:06,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:40:06,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:40:06,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:40:06,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:40:06,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:40:06,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:40:06,608 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:40:06,638 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:40:06,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:40:06,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:40:06,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:40:06,649 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:40:06,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:40:06,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:40:06,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:40:06,650 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:40:06,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:40:06,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:40:06,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:40:06,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:40:06,652 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:40:06,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:40:06,652 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:40:06,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:40:06,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:40:06,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:40:06,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:40:06,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:40:06,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:40:06,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:40:06,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:40:06,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:40:06,655 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:40:06,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:40:06,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:40:06,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 -> 18f8c11d6085f6594f0f2021411e68b8ac706f42 [2019-11-16 00:40:06,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:40:06,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:40:06,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:40:06,705 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:40:06,705 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:40:06,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2019-11-16 00:40:06,786 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/08cc447fe/9e8366079e0148d099b571af219da5c2/FLAGbdb77a486 [2019-11-16 00:40:07,354 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:40:07,366 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2019-11-16 00:40:07,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/08cc447fe/9e8366079e0148d099b571af219da5c2/FLAGbdb77a486 [2019-11-16 00:40:07,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/08cc447fe/9e8366079e0148d099b571af219da5c2 [2019-11-16 00:40:07,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:40:07,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:40:07,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:40:07,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:40:07,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:40:07,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:07" (1/1) ... [2019-11-16 00:40:07,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8bf45f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:07, skipping insertion in model container [2019-11-16 00:40:07,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:07" (1/1) ... [2019-11-16 00:40:07,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:40:07,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:40:08,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:40:08,149 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:40:08,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:40:08,259 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:40:08,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08 WrapperNode [2019-11-16 00:40:08,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:40:08,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:40:08,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:40:08,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:40:08,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:40:08,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:40:08,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:40:08,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:40:08,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... [2019-11-16 00:40:08,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:40:08,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:40:08,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:40:08,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:40:08,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 [2019-11-16 00:40:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-11-16 00:40:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-11-16 00:40:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-16 00:40:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-16 00:40:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-16 00:40:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:40:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:40:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:40:08,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:40:08,414 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-16 00:40:08,846 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:40:08,846 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-16 00:40:08,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:08 BoogieIcfgContainer [2019-11-16 00:40:08,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:40:08,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:40:08,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:40:08,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:40:08,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:40:07" (1/3) ... [2019-11-16 00:40:08,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bc4211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:08, skipping insertion in model container [2019-11-16 00:40:08,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:08" (2/3) ... [2019-11-16 00:40:08,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13bc4211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:08, skipping insertion in model container [2019-11-16 00:40:08,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:08" (3/3) ... [2019-11-16 00:40:08,860 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2019-11-16 00:40:08,892 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,892 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,893 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,893 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,893 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,894 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,894 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,895 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,895 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,895 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,895 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,896 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,896 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,896 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,897 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,897 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,897 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:08,909 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-16 00:40:08,910 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:40:08,918 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-16 00:40:08,931 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-16 00:40:08,953 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:40:08,953 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:40:08,953 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:40:08,953 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:40:08,953 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:40:08,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:40:08,954 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:40:08,954 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:40:08,963 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions [2019-11-16 00:40:08,992 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:390) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 00:40:08,997 INFO L168 Benchmark]: Toolchain (without parser) took 1386.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:08,998 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:40:08,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:08,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:40:09,000 INFO L168 Benchmark]: Boogie Preprocessor took 28.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:40:09,001 INFO L168 Benchmark]: RCFGBuilder took 508.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:09,001 INFO L168 Benchmark]: TraceAbstraction took 145.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:09,005 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 641.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -200.1 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 508.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 145.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 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:325) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:40:11,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:40:11,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:40:11,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:40:11,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:40:11,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:40:11,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:40:11,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:40:11,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:40:11,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:40:11,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:40:11,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:40:11,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:40:11,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:40:11,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:40:11,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:40:11,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:40:11,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:40:11,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:40:11,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:40:11,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:40:11,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:40:11,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:40:11,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:40:11,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:40:11,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:40:11,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:40:11,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:40:11,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:40:11,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:40:11,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:40:11,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:40:11,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:40:11,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:40:11,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:40:11,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:40:11,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:40:11,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:40:11,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:40:11,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:40:11,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:40:11,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:40:11,278 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:40:11,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:40:11,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:40:11,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:40:11,280 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:40:11,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:40:11,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:40:11,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:40:11,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:40:11,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:40:11,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:40:11,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:40:11,283 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:40:11,283 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:40:11,283 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:40:11,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:40:11,284 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:40:11,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:40:11,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:40:11,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:40:11,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:40:11,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:40:11,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:40:11,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:40:11,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:40:11,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:40:11,286 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:40:11,286 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:40:11,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:40:11,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:40:11,287 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 -> 18f8c11d6085f6594f0f2021411e68b8ac706f42 [2019-11-16 00:40:11,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:40:11,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:40:11,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:40:11,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:40:11,360 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:40:11,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2019-11-16 00:40:11,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/6bff11261/acbb8eeceece4ea1b9d9394b53e10f20/FLAG6811b2751 [2019-11-16 00:40:11,884 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:40:11,900 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2019-11-16 00:40:11,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/6bff11261/acbb8eeceece4ea1b9d9394b53e10f20/FLAG6811b2751 [2019-11-16 00:40:12,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/uautomizer/data/6bff11261/acbb8eeceece4ea1b9d9394b53e10f20 [2019-11-16 00:40:12,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:40:12,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:40:12,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:40:12,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:40:12,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:40:12,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f797cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12, skipping insertion in model container [2019-11-16 00:40:12,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,262 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:40:12,322 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:40:12,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:40:12,725 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:40:12,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:40:12,881 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:40:12,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12 WrapperNode [2019-11-16 00:40:12,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:40:12,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:40:12,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:40:12,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:40:12,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:40:12,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:40:12,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:40:12,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:40:12,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... [2019-11-16 00:40:12,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:40:12,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:40:12,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:40:12,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:40:12,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7e02851-9669-499e-b9b5-e6a7159cf4a2/bin/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 [2019-11-16 00:40:13,014 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-11-16 00:40:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-11-16 00:40:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-11-16 00:40:13,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-11-16 00:40:13,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:40:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-16 00:40:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-16 00:40:13,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:40:13,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:40:13,018 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-16 00:40:13,302 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:40:13,302 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-16 00:40:13,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:13 BoogieIcfgContainer [2019-11-16 00:40:13,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:40:13,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:40:13,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:40:13,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:40:13,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:40:12" (1/3) ... [2019-11-16 00:40:13,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498a30b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:13, skipping insertion in model container [2019-11-16 00:40:13,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:40:12" (2/3) ... [2019-11-16 00:40:13,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498a30b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:40:13, skipping insertion in model container [2019-11-16 00:40:13,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:40:13" (3/3) ... [2019-11-16 00:40:13,310 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2019-11-16 00:40:13,340 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,340 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,340 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,340 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,341 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,341 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,341 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,342 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,342 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,342 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,342 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,343 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,343 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,343 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,344 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,344 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,344 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-16 00:40:13,352 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-16 00:40:13,353 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:40:13,360 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-16 00:40:13,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-16 00:40:13,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:40:13,388 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:40:13,388 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:40:13,388 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:40:13,388 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:40:13,388 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:40:13,389 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:40:13,389 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:40:13,398 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 50 transitions [2019-11-16 00:40:13,434 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:390) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-16 00:40:13,441 INFO L168 Benchmark]: Toolchain (without parser) took 1191.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -129.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:13,441 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:40:13,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:13,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:13,443 INFO L168 Benchmark]: Boogie Preprocessor took 30.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:40:13,445 INFO L168 Benchmark]: RCFGBuilder took 343.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:13,446 INFO L168 Benchmark]: TraceAbstraction took 132.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:40:13,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 632.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 343.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Petrification does not provide enough thread instances for Thread0_thr2: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:325) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...