./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:34:59,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:34:59,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:34:59,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:34:59,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:34:59,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:34:59,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:34:59,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:34:59,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:34:59,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:34:59,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:34:59,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:34:59,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:34:59,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:34:59,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:34:59,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:34:59,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:34:59,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:34:59,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:34:59,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:34:59,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:34:59,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:34:59,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:34:59,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:34:59,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:34:59,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:34:59,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:34:59,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:34:59,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:34:59,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:34:59,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:34:59,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:34:59,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:34:59,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:34:59,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:34:59,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:34:59,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:34:59,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:34:59,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:34:59,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:34:59,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:34:59,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:34:59,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:34:59,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:34:59,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:34:59,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:34:59,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:34:59,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:34:59,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:34:59,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:34:59,862 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:34:59,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:34:59,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:34:59,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:34:59,865 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:34:59,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:34:59,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:34:59,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:34:59,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:34:59,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:34:59,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:34:59,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:34:59,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:34:59,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:34:59,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:34:59,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:34:59,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:34:59,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:34:59,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:34:59,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:34:59,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:34:59,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:34:59,871 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:34:59,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:34:59,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:34:59,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:34:59,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2021-11-19 04:35:00,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:35:00,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:35:00,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:35:00,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:35:00,324 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:35:00,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-11-19 04:35:00,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/data/926f5e2f4/5afe101e19084c3eb5d6a341bdb5d142/FLAGdd71d44b7 [2021-11-19 04:35:01,299 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:35:01,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-11-19 04:35:01,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/data/926f5e2f4/5afe101e19084c3eb5d6a341bdb5d142/FLAGdd71d44b7 [2021-11-19 04:35:01,459 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/data/926f5e2f4/5afe101e19084c3eb5d6a341bdb5d142 [2021-11-19 04:35:01,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:35:01,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:35:01,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:35:01,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:35:01,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:35:01,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:35:01" (1/1) ... [2021-11-19 04:35:01,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aad6b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:01, skipping insertion in model container [2021-11-19 04:35:01,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:35:01" (1/1) ... [2021-11-19 04:35:01,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:35:01,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:35:02,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-11-19 04:35:02,911 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:35:02,927 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:35:02,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/sv-benchmarks/c/ldv-races/race-1_3-join.i[76153,76166] [2021-11-19 04:35:02,996 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:35:03,174 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:35:03,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03 WrapperNode [2021-11-19 04:35:03,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:35:03,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:35:03,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:35:03,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:35:03,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,285 INFO L137 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 87 [2021-11-19 04:35:03,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:35:03,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:35:03,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:35:03,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:35:03,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:35:03,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:35:03,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:35:03,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:35:03,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (1/1) ... [2021-11-19 04:35:03,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:35:03,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:03,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:03,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:35:03,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 04:35:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:35:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 04:35:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:35:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 04:35:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:35:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 04:35:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:35:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:35:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:35:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-19 04:35:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-19 04:35:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:35:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:35:03,467 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 04:35:03,774 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:35:03,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:35:04,109 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:35:04,146 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:35:04,146 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 04:35:04,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:04 BoogieIcfgContainer [2021-11-19 04:35:04,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:35:04,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:35:04,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:35:04,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:35:04,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:35:01" (1/3) ... [2021-11-19 04:35:04,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b2346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:35:04, skipping insertion in model container [2021-11-19 04:35:04,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:03" (2/3) ... [2021-11-19 04:35:04,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b2346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:35:04, skipping insertion in model container [2021-11-19 04:35:04,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:04" (3/3) ... [2021-11-19 04:35:04,181 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-11-19 04:35:04,188 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 04:35:04,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:35:04,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 04:35:04,188 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 04:35:04,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,221 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,221 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,221 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,221 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,222 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,224 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,228 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,228 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,229 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,229 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:35:04,232 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-19 04:35:04,292 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:35:04,302 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:35:04,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-19 04:35:04,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 104 transitions, 216 flow [2021-11-19 04:35:04,411 INFO L129 PetriNetUnfolder]: 4/121 cut-off events. [2021-11-19 04:35:04,411 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:35:04,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 4/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 171 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 74. Up to 3 conditions per place. [2021-11-19 04:35:04,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 104 transitions, 216 flow [2021-11-19 04:35:04,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 90 transitions, 186 flow [2021-11-19 04:35:04,458 INFO L129 PetriNetUnfolder]: 1/34 cut-off events. [2021-11-19 04:35:04,458 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:35:04,459 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:35:04,460 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:04,460 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:35:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1781858689, now seen corresponding path program 1 times [2021-11-19 04:35:04,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:04,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721965331] [2021-11-19 04:35:04,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:04,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:05,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:05,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721965331] [2021-11-19 04:35:05,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721965331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:05,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:05,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:35:05,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098715820] [2021-11-19 04:35:05,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:05,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:35:05,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:05,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:05,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:05,104 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2021-11-19 04:35:05,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 90 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:35:05,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2021-11-19 04:35:05,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:35:05,315 INFO L129 PetriNetUnfolder]: 3/103 cut-off events. [2021-11-19 04:35:05,315 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-19 04:35:05,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 103 events. 3/103 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 39. Up to 12 conditions per place. [2021-11-19 04:35:05,318 INFO L132 encePairwiseOnDemand]: 89/104 looper letters, 15 selfloop transitions, 13 changer transitions 1/90 dead transitions. [2021-11-19 04:35:05,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 90 transitions, 244 flow [2021-11-19 04:35:05,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:35:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 04:35:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 542 transitions. [2021-11-19 04:35:05,360 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7445054945054945 [2021-11-19 04:35:05,361 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 542 transitions. [2021-11-19 04:35:05,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 542 transitions. [2021-11-19 04:35:05,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:05,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 542 transitions. [2021-11-19 04:35:05,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,429 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,432 INFO L186 Difference]: Start difference. First operand has 91 places, 90 transitions, 186 flow. Second operand 7 states and 542 transitions. [2021-11-19 04:35:05,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 90 transitions, 244 flow [2021-11-19 04:35:05,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-19 04:35:05,450 INFO L242 Difference]: Finished difference. Result has 93 places, 87 transitions, 218 flow [2021-11-19 04:35:05,454 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=218, PETRI_PLACES=93, PETRI_TRANSITIONS=87} [2021-11-19 04:35:05,459 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 2 predicate places. [2021-11-19 04:35:05,459 INFO L470 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 218 flow [2021-11-19 04:35:05,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.2) internal successors, (371), 5 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,460 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:35:05,461 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:05,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:35:05,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:35:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1912727172, now seen corresponding path program 1 times [2021-11-19 04:35:05,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:05,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577847427] [2021-11-19 04:35:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:05,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:05,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:05,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577847427] [2021-11-19 04:35:05,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577847427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:05,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:05,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:35:05,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142830446] [2021-11-19 04:35:05,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:05,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:35:05,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:05,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:05,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:05,668 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2021-11-19 04:35:05,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:35:05,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2021-11-19 04:35:05,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:35:05,836 INFO L129 PetriNetUnfolder]: 3/99 cut-off events. [2021-11-19 04:35:05,837 INFO L130 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2021-11-19 04:35:05,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 99 events. 3/99 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 97. Up to 13 conditions per place. [2021-11-19 04:35:05,841 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 17 selfloop transitions, 11 changer transitions 0/88 dead transitions. [2021-11-19 04:35:05,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 88 transitions, 282 flow [2021-11-19 04:35:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:35:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 04:35:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 538 transitions. [2021-11-19 04:35:05,847 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.739010989010989 [2021-11-19 04:35:05,848 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 538 transitions. [2021-11-19 04:35:05,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 538 transitions. [2021-11-19 04:35:05,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:05,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 538 transitions. [2021-11-19 04:35:05,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 76.85714285714286) internal successors, (538), 7 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,857 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,858 INFO L186 Difference]: Start difference. First operand has 93 places, 87 transitions, 218 flow. Second operand 7 states and 538 transitions. [2021-11-19 04:35:05,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 88 transitions, 282 flow [2021-11-19 04:35:05,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-19 04:35:05,867 INFO L242 Difference]: Finished difference. Result has 95 places, 86 transitions, 236 flow [2021-11-19 04:35:05,868 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=236, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2021-11-19 04:35:05,869 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 4 predicate places. [2021-11-19 04:35:05,869 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 236 flow [2021-11-19 04:35:05,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.2) internal successors, (376), 5 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:05,871 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:35:05,872 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:05,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:35:05,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:35:05,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:05,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1475171705, now seen corresponding path program 1 times [2021-11-19 04:35:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:05,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162784809] [2021-11-19 04:35:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:05,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:06,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:06,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:06,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162784809] [2021-11-19 04:35:06,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162784809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:06,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:06,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:35:06,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65620865] [2021-11-19 04:35:06,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:06,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:35:06,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:06,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:06,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:06,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 104 [2021-11-19 04:35:06,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:06,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:35:06,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 104 [2021-11-19 04:35:06,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:35:06,201 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-11-19 04:35:06,201 INFO L130 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2021-11-19 04:35:06,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 108 events. 2/108 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 3/110 useless extension candidates. Maximal degree in co-relation 110. Up to 15 conditions per place. [2021-11-19 04:35:06,204 INFO L132 encePairwiseOnDemand]: 99/104 looper letters, 11 selfloop transitions, 5 changer transitions 11/88 dead transitions. [2021-11-19 04:35:06,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 88 transitions, 279 flow [2021-11-19 04:35:06,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:06,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:35:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2021-11-19 04:35:06,209 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-11-19 04:35:06,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2021-11-19 04:35:06,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2021-11-19 04:35:06,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:06,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2021-11-19 04:35:06,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:06,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:06,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:06,215 INFO L186 Difference]: Start difference. First operand has 95 places, 86 transitions, 236 flow. Second operand 3 states and 273 transitions. [2021-11-19 04:35:06,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 88 transitions, 279 flow [2021-11-19 04:35:06,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 261 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-11-19 04:35:06,228 INFO L242 Difference]: Finished difference. Result has 94 places, 76 transitions, 208 flow [2021-11-19 04:35:06,228 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=94, PETRI_TRANSITIONS=76} [2021-11-19 04:35:06,233 INFO L334 CegarLoopForPetriNet]: 91 programPoint places, 3 predicate places. [2021-11-19 04:35:06,233 INFO L470 AbstractCegarLoop]: Abstraction has has 94 places, 76 transitions, 208 flow [2021-11-19 04:35:06,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:06,234 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:35:06,234 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:06,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:35:06,235 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-19 04:35:06,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1234132731, now seen corresponding path program 1 times [2021-11-19 04:35:06,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:06,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524958885] [2021-11-19 04:35:06,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:06,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:06,308 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:06,426 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:06,427 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:35:06,428 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-11-19 04:35:06,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-11-19 04:35:06,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-11-19 04:35:06,433 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-11-19 04:35:06,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2021-11-19 04:35:06,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 04:35:06,456 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-19 04:35:06,462 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 04:35:06,462 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:35:06,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:35:06 BasicIcfg [2021-11-19 04:35:06,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:35:06,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:35:06,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:35:06,539 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:35:06,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:04" (3/4) ... [2021-11-19 04:35:06,543 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 04:35:06,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:35:06,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:35:06,616 INFO L158 Benchmark]: Toolchain (without parser) took 5151.01ms. Allocated memory was 94.4MB in the beginning and 148.9MB in the end (delta: 54.5MB). Free memory was 56.0MB in the beginning and 79.9MB in the end (delta: -23.9MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,617 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:35:06,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1704.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.8MB in the beginning and 84.5MB in the end (delta: -28.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.11ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 81.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,619 INFO L158 Benchmark]: Boogie Preprocessor took 87.58ms. Allocated memory is still 113.2MB. Free memory was 81.4MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,620 INFO L158 Benchmark]: RCFGBuilder took 774.66ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 61.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,621 INFO L158 Benchmark]: TraceAbstraction took 2385.78ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 84.1MB in the end (delta: -23.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,621 INFO L158 Benchmark]: Witness Printer took 76.30ms. Allocated memory is still 148.9MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:35:06,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 66.9MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1704.74ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 55.8MB in the beginning and 84.5MB in the end (delta: -28.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.11ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 81.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.58ms. Allocated memory is still 113.2MB. Free memory was 81.4MB in the beginning and 78.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 774.66ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 61.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2385.78ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 60.4MB in the beginning and 84.1MB in the end (delta: -23.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 76.30ms. Allocated memory is still 148.9MB. Free memory was 84.1MB in the beginning and 79.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={5:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={6:0}, t1={5:0}] [L1698] 0 int pdev; VAL [mutex={6:0}, pdev=0, t1={5:0}] [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 VAL [mutex={6:0}, pdev=1, t1={5:0}] [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={6:0}, pdev=1, t1={5:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={6:0}, pdev=1, t1={5:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={6:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={5:0}] [L1713] 0 return 0; VAL [\result=0, arg={0:0}, mutex={6:0}, pdev=1, t1={5:0}] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, module_init()=0, mutex={6:0}, pdev=1, t1={5:0}] [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [arg={0:0}, mutex={6:0}, pdev=1, status={3:0}, t1={5:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={6:0}, pdev=4, status={3:0}, t1={5:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={6:0}, pdev=6, t1={5:0}] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, arg={0:0}, arg={0:0}, expression=0, mutex={6:0}, pdev=6, t1={5:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 109 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 44 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 151 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-19 04:35:06,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6faa23c3-7b3b-443f-b4f8-ddec61e75975/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE