./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:26:11,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:26:11,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:26:11,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:26:11,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:26:11,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:26:11,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:26:11,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:26:11,604 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:26:11,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:26:11,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:26:11,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:26:11,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:26:11,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:26:11,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:26:11,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:26:11,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:26:11,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:26:11,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:26:11,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:26:11,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:26:11,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:26:11,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:26:11,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:26:11,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:26:11,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:26:11,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:26:11,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:26:11,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:26:11,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:26:11,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:26:11,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:26:11,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:26:11,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:26:11,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:26:11,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:26:11,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:26:11,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:26:11,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:26:11,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:26:11,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:26:11,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:26:11,696 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:26:11,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:26:11,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:26:11,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:26:11,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:26:11,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:26:11,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:26:11,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:26:11,703 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:26:11,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:26:11,704 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:26:11,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:26:11,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:26:11,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:26:11,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:26:11,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:26:11,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:26:11,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:26:11,706 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:26:11,706 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:26:11,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:26:11,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:26:11,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:26:11,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:26:11,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:26:11,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:26:11,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:11,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:26:11,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:26:11,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:26:11,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:26:11,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:26:11,711 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:26:11,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:26:11,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:26:11,711 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_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2022-11-18 20:26:11,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:26:12,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:26:12,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:26:12,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:26:12,009 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:26:12,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-18 20:26:12,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/data/c4b433057/27347452417947e28998fe83ffdfa578/FLAG8ab79bd79 [2022-11-18 20:26:12,770 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:26:12,771 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-18 20:26:12,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/data/c4b433057/27347452417947e28998fe83ffdfa578/FLAG8ab79bd79 [2022-11-18 20:26:13,058 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/data/c4b433057/27347452417947e28998fe83ffdfa578 [2022-11-18 20:26:13,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:26:13,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:26:13,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:13,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:26:13,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:26:13,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:13" (1/1) ... [2022-11-18 20:26:13,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dab3d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:13, skipping insertion in model container [2022-11-18 20:26:13,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:26:13" (1/1) ... [2022-11-18 20:26:13,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:26:13,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:26:13,395 WARN L234 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_ba9d4328-de61-4757-9fdf-3fc76c2509e8/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-18 20:26:13,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:13,872 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:26:13,887 WARN L234 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_ba9d4328-de61-4757-9fdf-3fc76c2509e8/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-18 20:26:13,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:26:14,030 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:26:14,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14 WrapperNode [2022-11-18 20:26:14,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:26:14,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:14,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:26:14,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:26:14,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,077 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2022-11-18 20:26:14,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:26:14,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:26:14,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:26:14,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:26:14,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:26:14,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:26:14,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:26:14,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:26:14,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (1/1) ... [2022-11-18 20:26:14,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:26:14,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:14,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:26:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:26:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:26:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:26:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:26:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:26:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:26:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-11-18 20:26:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-11-18 20:26:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:26:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:26:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:26:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:26:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:26:14,194 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:26:14,468 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:26:14,470 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:26:14,666 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:26:14,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:26:14,697 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:26:14,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:14 BoogieIcfgContainer [2022-11-18 20:26:14,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:26:14,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:26:14,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:26:14,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:26:14,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:26:13" (1/3) ... [2022-11-18 20:26:14,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610dd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:14, skipping insertion in model container [2022-11-18 20:26:14,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:26:14" (2/3) ... [2022-11-18 20:26:14,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610dd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:26:14, skipping insertion in model container [2022-11-18 20:26:14,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:26:14" (3/3) ... [2022-11-18 20:26:14,712 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2022-11-18 20:26:14,721 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:26:14,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:26:14,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-18 20:26:14,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:26:14,811 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:26:14,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 104 transitions, 216 flow [2022-11-18 20:26:14,941 INFO L130 PetriNetUnfolder]: 7/103 cut-off events. [2022-11-18 20:26:14,941 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:26:14,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 103 events. 7/103 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-18 20:26:14,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 104 transitions, 216 flow [2022-11-18 20:26:14,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 163 flow [2022-11-18 20:26:14,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:26:14,981 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@548c78a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:26:14,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-18 20:26:15,002 INFO L130 PetriNetUnfolder]: 2/49 cut-off events. [2022-11-18 20:26:15,003 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:26:15,003 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:15,004 INFO L209 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] [2022-11-18 20:26:15,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:15,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:15,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1294169796, now seen corresponding path program 1 times [2022-11-18 20:26:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:15,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082472100] [2022-11-18 20:26:15,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:15,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:15,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082472100] [2022-11-18 20:26:15,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082472100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:15,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:15,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:15,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101761296] [2022-11-18 20:26:15,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:15,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:15,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:15,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:15,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:15,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-11-18 20:26:15,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:15,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:15,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:15,790 INFO L130 PetriNetUnfolder]: 64/246 cut-off events. [2022-11-18 20:26:15,790 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:26:15,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 246 events. 64/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1089 event pairs, 10 based on Foata normal form. 36/200 useless extension candidates. Maximal degree in co-relation 330. Up to 90 conditions per place. [2022-11-18 20:26:15,794 INFO L137 encePairwiseOnDemand]: 92/104 looper letters, 20 selfloop transitions, 7 changer transitions 0/91 dead transitions. [2022-11-18 20:26:15,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 91 transitions, 239 flow [2022-11-18 20:26:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2022-11-18 20:26:15,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8634615384615385 [2022-11-18 20:26:15,811 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2022-11-18 20:26:15,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2022-11-18 20:26:15,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:15,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2022-11-18 20:26:15,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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) [2022-11-18 20:26:15,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:15,829 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:15,831 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 163 flow. Second operand 5 states and 449 transitions. [2022-11-18 20:26:15,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 91 transitions, 239 flow [2022-11-18 20:26:15,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:26:15,844 INFO L231 Difference]: Finished difference. Result has 85 places, 83 transitions, 218 flow [2022-11-18 20:26:15,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=85, PETRI_TRANSITIONS=83} [2022-11-18 20:26:15,851 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2022-11-18 20:26:15,852 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 83 transitions, 218 flow [2022-11-18 20:26:15,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2022-11-18 20:26:15,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:15,853 INFO L209 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] [2022-11-18 20:26:15,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:26:15,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:15,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:15,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1113377736, now seen corresponding path program 1 times [2022-11-18 20:26:15,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:15,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122500382] [2022-11-18 20:26:15,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:15,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:15,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122500382] [2022-11-18 20:26:15,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122500382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:15,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:15,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:15,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795730954] [2022-11-18 20:26:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:15,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:15,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:15,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:15,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:15,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:15,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 83 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2022-11-18 20:26:15,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:15,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:15,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:16,096 INFO L130 PetriNetUnfolder]: 110/324 cut-off events. [2022-11-18 20:26:16,097 INFO L131 PetriNetUnfolder]: For 181/206 co-relation queries the response was YES. [2022-11-18 20:26:16,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 324 events. 110/324 cut-off events. For 181/206 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1719 event pairs, 14 based on Foata normal form. 2/242 useless extension candidates. Maximal degree in co-relation 725. Up to 129 conditions per place. [2022-11-18 20:26:16,104 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 25 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2022-11-18 20:26:16,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 329 flow [2022-11-18 20:26:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:16,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:16,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 434 transitions. [2022-11-18 20:26:16,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8346153846153846 [2022-11-18 20:26:16,113 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 434 transitions. [2022-11-18 20:26:16,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 434 transitions. [2022-11-18 20:26:16,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:16,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 434 transitions. [2022-11-18 20:26:16,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 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) [2022-11-18 20:26:16,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:16,125 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:16,125 INFO L175 Difference]: Start difference. First operand has 85 places, 83 transitions, 218 flow. Second operand 5 states and 434 transitions. [2022-11-18 20:26:16,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 329 flow [2022-11-18 20:26:16,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 96 transitions, 329 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:26:16,132 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 250 flow [2022-11-18 20:26:16,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=250, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2022-11-18 20:26:16,134 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2022-11-18 20:26:16,134 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 250 flow [2022-11-18 20:26:16,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2022-11-18 20:26:16,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:16,135 INFO L209 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] [2022-11-18 20:26:16,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:26:16,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -75420034, now seen corresponding path program 1 times [2022-11-18 20:26:16,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:16,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468710909] [2022-11-18 20:26:16,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:16,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:16,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:16,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:16,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468710909] [2022-11-18 20:26:16,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468710909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:16,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:16,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:16,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701060039] [2022-11-18 20:26:16,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:16,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:16,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:16,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:16,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:16,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-18 20:26:16,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2022-11-18 20:26:16,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:16,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-18 20:26:16,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:16,371 INFO L130 PetriNetUnfolder]: 50/286 cut-off events. [2022-11-18 20:26:16,371 INFO L131 PetriNetUnfolder]: For 91/119 co-relation queries the response was YES. [2022-11-18 20:26:16,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 286 events. 50/286 cut-off events. For 91/119 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1395 event pairs, 33 based on Foata normal form. 10/253 useless extension candidates. Maximal degree in co-relation 587. Up to 96 conditions per place. [2022-11-18 20:26:16,375 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 21 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2022-11-18 20:26:16,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 94 transitions, 324 flow [2022-11-18 20:26:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 426 transitions. [2022-11-18 20:26:16,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8192307692307692 [2022-11-18 20:26:16,384 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 426 transitions. [2022-11-18 20:26:16,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 426 transitions. [2022-11-18 20:26:16,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:16,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 426 transitions. [2022-11-18 20:26:16,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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) [2022-11-18 20:26:16,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:16,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:16,398 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 250 flow. Second operand 5 states and 426 transitions. [2022-11-18 20:26:16,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 94 transitions, 324 flow [2022-11-18 20:26:16,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:26:16,407 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 280 flow [2022-11-18 20:26:16,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2022-11-18 20:26:16,411 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 19 predicate places. [2022-11-18 20:26:16,411 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 280 flow [2022-11-18 20:26:16,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2022-11-18 20:26:16,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:16,412 INFO L209 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] [2022-11-18 20:26:16,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:26:16,414 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:16,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1235583057, now seen corresponding path program 1 times [2022-11-18 20:26:16,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:16,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002698530] [2022-11-18 20:26:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:16,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:16,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002698530] [2022-11-18 20:26:16,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002698530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:16,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:16,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:26:16,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271428605] [2022-11-18 20:26:16,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:16,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:26:16,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:16,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:26:16,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:26:16,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:16,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 280 flow. Second operand has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 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) [2022-11-18 20:26:16,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:16,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:16,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:16,756 INFO L130 PetriNetUnfolder]: 123/574 cut-off events. [2022-11-18 20:26:16,757 INFO L131 PetriNetUnfolder]: For 216/289 co-relation queries the response was YES. [2022-11-18 20:26:16,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 574 events. 123/574 cut-off events. For 216/289 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3616 event pairs, 28 based on Foata normal form. 12/499 useless extension candidates. Maximal degree in co-relation 1334. Up to 147 conditions per place. [2022-11-18 20:26:16,767 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 28 selfloop transitions, 18 changer transitions 0/116 dead transitions. [2022-11-18 20:26:16,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 116 transitions, 483 flow [2022-11-18 20:26:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:26:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:26:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 615 transitions. [2022-11-18 20:26:16,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8447802197802198 [2022-11-18 20:26:16,770 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 615 transitions. [2022-11-18 20:26:16,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 615 transitions. [2022-11-18 20:26:16,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:16,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 615 transitions. [2022-11-18 20:26:16,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2022-11-18 20:26:16,780 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) [2022-11-18 20:26:16,780 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) [2022-11-18 20:26:16,781 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 280 flow. Second operand 7 states and 615 transitions. [2022-11-18 20:26:16,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 116 transitions, 483 flow [2022-11-18 20:26:16,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 116 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:26:16,791 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 427 flow [2022-11-18 20:26:16,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=427, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2022-11-18 20:26:16,794 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2022-11-18 20:26:16,795 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 427 flow [2022-11-18 20:26:16,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.2) internal successors, (411), 5 states have internal predecessors, (411), 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) [2022-11-18 20:26:16,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:16,801 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 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] [2022-11-18 20:26:16,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:26:16,801 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:16,802 INFO L85 PathProgramCache]: Analyzing trace with hash -63550693, now seen corresponding path program 1 times [2022-11-18 20:26:16,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:16,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315997732] [2022-11-18 20:26:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:16,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:17,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:17,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:17,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315997732] [2022-11-18 20:26:17,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315997732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:17,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442870827] [2022-11-18 20:26:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:17,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:17,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:17,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:17,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:26:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:17,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:26:17,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:17,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:17,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:17,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442870827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:17,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:17,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 20:26:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975263251] [2022-11-18 20:26:17,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:17,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:26:17,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:26:17,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:26:17,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:17,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 427 flow. Second operand has 12 states, 12 states have (on average 83.25) internal successors, (999), 12 states have internal predecessors, (999), 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) [2022-11-18 20:26:17,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:17,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:17,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:18,126 INFO L130 PetriNetUnfolder]: 435/2016 cut-off events. [2022-11-18 20:26:18,127 INFO L131 PetriNetUnfolder]: For 4242/4547 co-relation queries the response was YES. [2022-11-18 20:26:18,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5913 conditions, 2016 events. 435/2016 cut-off events. For 4242/4547 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 17475 event pairs, 6 based on Foata normal form. 80/2011 useless extension candidates. Maximal degree in co-relation 5862. Up to 522 conditions per place. [2022-11-18 20:26:18,146 INFO L137 encePairwiseOnDemand]: 94/104 looper letters, 68 selfloop transitions, 126 changer transitions 0/264 dead transitions. [2022-11-18 20:26:18,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 264 transitions, 1970 flow [2022-11-18 20:26:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-18 20:26:18,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-18 20:26:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2873 transitions. [2022-11-18 20:26:18,154 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8371212121212122 [2022-11-18 20:26:18,154 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2873 transitions. [2022-11-18 20:26:18,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2873 transitions. [2022-11-18 20:26:18,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:18,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2873 transitions. [2022-11-18 20:26:18,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 87.06060606060606) internal successors, (2873), 33 states have internal predecessors, (2873), 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) [2022-11-18 20:26:18,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 104.0) internal successors, (3536), 34 states have internal predecessors, (3536), 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) [2022-11-18 20:26:18,173 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 104.0) internal successors, (3536), 34 states have internal predecessors, (3536), 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) [2022-11-18 20:26:18,174 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 427 flow. Second operand 33 states and 2873 transitions. [2022-11-18 20:26:18,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 264 transitions, 1970 flow [2022-11-18 20:26:18,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 264 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:26:18,192 INFO L231 Difference]: Finished difference. Result has 160 places, 217 transitions, 1978 flow [2022-11-18 20:26:18,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1978, PETRI_PLACES=160, PETRI_TRANSITIONS=217} [2022-11-18 20:26:18,193 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-11-18 20:26:18,193 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 217 transitions, 1978 flow [2022-11-18 20:26:18,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 83.25) internal successors, (999), 12 states have internal predecessors, (999), 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) [2022-11-18 20:26:18,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:18,194 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 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] [2022-11-18 20:26:18,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:18,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:18,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:18,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:18,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1850071820, now seen corresponding path program 1 times [2022-11-18 20:26:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:18,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918814362] [2022-11-18 20:26:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:18,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:18,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:18,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918814362] [2022-11-18 20:26:18,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918814362] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:18,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291003763] [2022-11-18 20:26:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:18,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:18,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:18,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:18,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:26:18,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:18,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:26:18,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:18,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:18,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291003763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:18,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:18,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 20:26:18,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486326372] [2022-11-18 20:26:18,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:18,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:18,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:18,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:18,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:26:18,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 104 [2022-11-18 20:26:18,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 217 transitions, 1978 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2022-11-18 20:26:18,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:18,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 104 [2022-11-18 20:26:18,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:19,032 INFO L130 PetriNetUnfolder]: 252/1394 cut-off events. [2022-11-18 20:26:19,033 INFO L131 PetriNetUnfolder]: For 14864/15222 co-relation queries the response was YES. [2022-11-18 20:26:19,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5442 conditions, 1394 events. 252/1394 cut-off events. For 14864/15222 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 10945 event pairs, 7 based on Foata normal form. 76/1461 useless extension candidates. Maximal degree in co-relation 5367. Up to 342 conditions per place. [2022-11-18 20:26:19,053 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 95 selfloop transitions, 19 changer transitions 0/229 dead transitions. [2022-11-18 20:26:19,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 229 transitions, 2346 flow [2022-11-18 20:26:19,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:26:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 20:26:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2022-11-18 20:26:19,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8725961538461539 [2022-11-18 20:26:19,056 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2022-11-18 20:26:19,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2022-11-18 20:26:19,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:19,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2022-11-18 20:26:19,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2022-11-18 20:26:19,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2022-11-18 20:26:19,059 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2022-11-18 20:26:19,059 INFO L175 Difference]: Start difference. First operand has 160 places, 217 transitions, 1978 flow. Second operand 4 states and 363 transitions. [2022-11-18 20:26:19,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 229 transitions, 2346 flow [2022-11-18 20:26:19,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 1830 flow, removed 247 selfloop flow, removed 4 redundant places. [2022-11-18 20:26:19,147 INFO L231 Difference]: Finished difference. Result has 160 places, 211 transitions, 1568 flow [2022-11-18 20:26:19,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1357, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1568, PETRI_PLACES=160, PETRI_TRANSITIONS=211} [2022-11-18 20:26:19,149 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-11-18 20:26:19,149 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 211 transitions, 1568 flow [2022-11-18 20:26:19,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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) [2022-11-18 20:26:19,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:19,149 INFO L209 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] [2022-11-18 20:26:19,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:19,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 20:26:19,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:19,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:19,364 INFO L85 PathProgramCache]: Analyzing trace with hash -351630609, now seen corresponding path program 1 times [2022-11-18 20:26:19,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:19,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849884920] [2022-11-18 20:26:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:19,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:19,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:19,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849884920] [2022-11-18 20:26:19,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849884920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:19,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:19,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:26:19,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661781184] [2022-11-18 20:26:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:19,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:26:19,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:26:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:26:19,473 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:19,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 211 transitions, 1568 flow. Second operand has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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) [2022-11-18 20:26:19,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:19,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:19,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:20,016 INFO L130 PetriNetUnfolder]: 408/2035 cut-off events. [2022-11-18 20:26:20,017 INFO L131 PetriNetUnfolder]: For 25290/25666 co-relation queries the response was YES. [2022-11-18 20:26:20,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7722 conditions, 2035 events. 408/2035 cut-off events. For 25290/25666 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 17561 event pairs, 55 based on Foata normal form. 120/2096 useless extension candidates. Maximal degree in co-relation 7645. Up to 445 conditions per place. [2022-11-18 20:26:20,040 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 174 selfloop transitions, 23 changer transitions 0/267 dead transitions. [2022-11-18 20:26:20,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 267 transitions, 2568 flow [2022-11-18 20:26:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:26:20,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:26:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2022-11-18 20:26:20,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-11-18 20:26:20,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2022-11-18 20:26:20,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2022-11-18 20:26:20,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:20,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2022-11-18 20:26:20,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2022-11-18 20:26:20,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2022-11-18 20:26:20,046 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 104.0) internal successors, (728), 7 states have internal predecessors, (728), 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) [2022-11-18 20:26:20,046 INFO L175 Difference]: Start difference. First operand has 160 places, 211 transitions, 1568 flow. Second operand 6 states and 528 transitions. [2022-11-18 20:26:20,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 267 transitions, 2568 flow [2022-11-18 20:26:20,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 267 transitions, 2484 flow, removed 18 selfloop flow, removed 2 redundant places. [2022-11-18 20:26:20,170 INFO L231 Difference]: Finished difference. Result has 165 places, 217 transitions, 1799 flow [2022-11-18 20:26:20,171 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1459, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1799, PETRI_PLACES=165, PETRI_TRANSITIONS=217} [2022-11-18 20:26:20,173 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 86 predicate places. [2022-11-18 20:26:20,173 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 217 transitions, 1799 flow [2022-11-18 20:26:20,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.4) internal successors, (412), 5 states have internal predecessors, (412), 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) [2022-11-18 20:26:20,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:20,174 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2022-11-18 20:26:20,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:26:20,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:20,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:20,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1970071195, now seen corresponding path program 1 times [2022-11-18 20:26:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:20,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059343226] [2022-11-18 20:26:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:20,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:20,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:20,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059343226] [2022-11-18 20:26:20,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059343226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:20,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764381241] [2022-11-18 20:26:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:20,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:20,300 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:20,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:26:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:20,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:26:20,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:20,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:20,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:20,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764381241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:20,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:20,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:26:20,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34058829] [2022-11-18 20:26:20,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:20,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:26:20,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:20,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:26:20,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:26:20,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:20,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 217 transitions, 1799 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2022-11-18 20:26:20,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:20,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:20,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:20,928 INFO L130 PetriNetUnfolder]: 282/1688 cut-off events. [2022-11-18 20:26:20,928 INFO L131 PetriNetUnfolder]: For 20157/20470 co-relation queries the response was YES. [2022-11-18 20:26:20,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 1688 events. 282/1688 cut-off events. For 20157/20470 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13957 event pairs, 53 based on Foata normal form. 154/1794 useless extension candidates. Maximal degree in co-relation 5886. Up to 549 conditions per place. [2022-11-18 20:26:20,950 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 95 selfloop transitions, 15 changer transitions 0/180 dead transitions. [2022-11-18 20:26:20,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 180 transitions, 1668 flow [2022-11-18 20:26:20,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:26:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 20:26:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 678 transitions. [2022-11-18 20:26:20,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8149038461538461 [2022-11-18 20:26:20,952 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 678 transitions. [2022-11-18 20:26:20,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 678 transitions. [2022-11-18 20:26:20,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:20,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 678 transitions. [2022-11-18 20:26:20,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.75) internal successors, (678), 8 states have internal predecessors, (678), 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) [2022-11-18 20:26:20,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 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) [2022-11-18 20:26:20,957 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 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) [2022-11-18 20:26:20,957 INFO L175 Difference]: Start difference. First operand has 165 places, 217 transitions, 1799 flow. Second operand 8 states and 678 transitions. [2022-11-18 20:26:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 180 transitions, 1668 flow [2022-11-18 20:26:20,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 180 transitions, 1576 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-18 20:26:20,994 INFO L231 Difference]: Finished difference. Result has 152 places, 171 transitions, 1289 flow [2022-11-18 20:26:20,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1289, PETRI_PLACES=152, PETRI_TRANSITIONS=171} [2022-11-18 20:26:20,995 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 73 predicate places. [2022-11-18 20:26:20,995 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 171 transitions, 1289 flow [2022-11-18 20:26:20,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2022-11-18 20:26:20,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:20,996 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2022-11-18 20:26:21,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:21,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:21,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:21,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:21,202 INFO L85 PathProgramCache]: Analyzing trace with hash -197433599, now seen corresponding path program 1 times [2022-11-18 20:26:21,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:21,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592712235] [2022-11-18 20:26:21,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:21,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:26:21,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:21,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592712235] [2022-11-18 20:26:21,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592712235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:21,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:21,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:21,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184944780] [2022-11-18 20:26:21,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:21,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:21,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:21,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:21,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:21,268 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-18 20:26:21,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 171 transitions, 1289 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2022-11-18 20:26:21,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:21,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-18 20:26:21,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:21,554 INFO L130 PetriNetUnfolder]: 176/1253 cut-off events. [2022-11-18 20:26:21,554 INFO L131 PetriNetUnfolder]: For 8559/8970 co-relation queries the response was YES. [2022-11-18 20:26:21,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4274 conditions, 1253 events. 176/1253 cut-off events. For 8559/8970 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9505 event pairs, 6 based on Foata normal form. 208/1452 useless extension candidates. Maximal degree in co-relation 4201. Up to 191 conditions per place. [2022-11-18 20:26:21,571 INFO L137 encePairwiseOnDemand]: 98/104 looper letters, 33 selfloop transitions, 8 changer transitions 0/171 dead transitions. [2022-11-18 20:26:21,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 171 transitions, 1369 flow [2022-11-18 20:26:21,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2022-11-18 20:26:21,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7980769230769231 [2022-11-18 20:26:21,573 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2022-11-18 20:26:21,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2022-11-18 20:26:21,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:21,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2022-11-18 20:26:21,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2022-11-18 20:26:21,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:21,576 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:21,576 INFO L175 Difference]: Start difference. First operand has 152 places, 171 transitions, 1289 flow. Second operand 5 states and 415 transitions. [2022-11-18 20:26:21,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 171 transitions, 1369 flow [2022-11-18 20:26:21,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 171 transitions, 1354 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:26:21,601 INFO L231 Difference]: Finished difference. Result has 151 places, 171 transitions, 1294 flow [2022-11-18 20:26:21,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1294, PETRI_PLACES=151, PETRI_TRANSITIONS=171} [2022-11-18 20:26:21,603 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 72 predicate places. [2022-11-18 20:26:21,603 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 171 transitions, 1294 flow [2022-11-18 20:26:21,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2022-11-18 20:26:21,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:21,604 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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] [2022-11-18 20:26:21,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:26:21,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:21,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1825474075, now seen corresponding path program 1 times [2022-11-18 20:26:21,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:21,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870074046] [2022-11-18 20:26:21,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:21,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:21,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:21,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870074046] [2022-11-18 20:26:21,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870074046] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:21,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103756437] [2022-11-18 20:26:21,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:21,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:21,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:21,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:21,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:26:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:21,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:26:21,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:21,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:21,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103756437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:21,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:21,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:26:21,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742625637] [2022-11-18 20:26:21,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:21,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:26:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:21,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:26:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:26:21,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-18 20:26:21,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 171 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-18 20:26:21,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:21,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-18 20:26:21,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:22,161 INFO L130 PetriNetUnfolder]: 179/1229 cut-off events. [2022-11-18 20:26:22,161 INFO L131 PetriNetUnfolder]: For 8822/9210 co-relation queries the response was YES. [2022-11-18 20:26:22,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4464 conditions, 1229 events. 179/1229 cut-off events. For 8822/9210 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9155 event pairs, 6 based on Foata normal form. 163/1383 useless extension candidates. Maximal degree in co-relation 4392. Up to 254 conditions per place. [2022-11-18 20:26:22,183 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 44 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2022-11-18 20:26:22,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 180 transitions, 1460 flow [2022-11-18 20:26:22,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:26:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:26:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 580 transitions. [2022-11-18 20:26:22,186 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967032967032966 [2022-11-18 20:26:22,186 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 580 transitions. [2022-11-18 20:26:22,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 580 transitions. [2022-11-18 20:26:22,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:22,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 580 transitions. [2022-11-18 20:26:22,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 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) [2022-11-18 20:26:22,235 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) [2022-11-18 20:26:22,236 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) [2022-11-18 20:26:22,236 INFO L175 Difference]: Start difference. First operand has 151 places, 171 transitions, 1294 flow. Second operand 7 states and 580 transitions. [2022-11-18 20:26:22,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 180 transitions, 1460 flow [2022-11-18 20:26:22,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 180 transitions, 1448 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:26:22,266 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1290 flow [2022-11-18 20:26:22,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=153, PETRI_TRANSITIONS=170} [2022-11-18 20:26:22,267 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 74 predicate places. [2022-11-18 20:26:22,267 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1290 flow [2022-11-18 20:26:22,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2022-11-18 20:26:22,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:22,268 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:26:22,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:22,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:22,473 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:22,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:22,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2134819551, now seen corresponding path program 1 times [2022-11-18 20:26:22,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:22,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607901947] [2022-11-18 20:26:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:22,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:26:22,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:22,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607901947] [2022-11-18 20:26:22,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607901947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:22,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:26:22,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:26:22,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106150625] [2022-11-18 20:26:22,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:22,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:26:22,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:22,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:26:22,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:26:22,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:22,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 170 transitions, 1290 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-18 20:26:22,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:22,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:22,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:22,876 INFO L130 PetriNetUnfolder]: 409/1641 cut-off events. [2022-11-18 20:26:22,876 INFO L131 PetriNetUnfolder]: For 12011/12193 co-relation queries the response was YES. [2022-11-18 20:26:22,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6025 conditions, 1641 events. 409/1641 cut-off events. For 12011/12193 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 12730 event pairs, 28 based on Foata normal form. 67/1645 useless extension candidates. Maximal degree in co-relation 5954. Up to 358 conditions per place. [2022-11-18 20:26:22,935 INFO L137 encePairwiseOnDemand]: 98/104 looper letters, 66 selfloop transitions, 8 changer transitions 0/204 dead transitions. [2022-11-18 20:26:22,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 204 transitions, 1732 flow [2022-11-18 20:26:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:26:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:26:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 422 transitions. [2022-11-18 20:26:22,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8115384615384615 [2022-11-18 20:26:22,939 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 422 transitions. [2022-11-18 20:26:22,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 422 transitions. [2022-11-18 20:26:22,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:22,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 422 transitions. [2022-11-18 20:26:22,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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) [2022-11-18 20:26:22,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:22,942 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 104.0) internal successors, (624), 6 states have internal predecessors, (624), 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) [2022-11-18 20:26:22,942 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1290 flow. Second operand 5 states and 422 transitions. [2022-11-18 20:26:22,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 204 transitions, 1732 flow [2022-11-18 20:26:22,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 204 transitions, 1721 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-18 20:26:22,972 INFO L231 Difference]: Finished difference. Result has 152 places, 170 transitions, 1299 flow [2022-11-18 20:26:22,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1275, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1299, PETRI_PLACES=152, PETRI_TRANSITIONS=170} [2022-11-18 20:26:22,973 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 73 predicate places. [2022-11-18 20:26:22,973 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 170 transitions, 1299 flow [2022-11-18 20:26:22,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2022-11-18 20:26:22,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:22,974 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:26:22,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:26:22,974 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:22,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:22,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1754896937, now seen corresponding path program 1 times [2022-11-18 20:26:22,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:22,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618359105] [2022-11-18 20:26:22,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:22,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:23,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:23,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618359105] [2022-11-18 20:26:23,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618359105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:23,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644828959] [2022-11-18 20:26:23,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:23,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:23,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:23,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:23,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:26:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:23,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:26:23,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:23,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:26:23,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644828959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:26:23,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:26:23,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-18 20:26:23,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659983918] [2022-11-18 20:26:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:26:23,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:26:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:23,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:26:23,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:26:23,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:23,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 170 transitions, 1299 flow. Second operand has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2022-11-18 20:26:23,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:23,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:23,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:23,579 INFO L130 PetriNetUnfolder]: 395/1610 cut-off events. [2022-11-18 20:26:23,580 INFO L131 PetriNetUnfolder]: For 11250/11383 co-relation queries the response was YES. [2022-11-18 20:26:23,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6002 conditions, 1610 events. 395/1610 cut-off events. For 11250/11383 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 12337 event pairs, 27 based on Foata normal form. 52/1594 useless extension candidates. Maximal degree in co-relation 5932. Up to 341 conditions per place. [2022-11-18 20:26:23,598 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 78 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2022-11-18 20:26:23,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 214 transitions, 1841 flow [2022-11-18 20:26:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:26:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:26:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 590 transitions. [2022-11-18 20:26:23,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8104395604395604 [2022-11-18 20:26:23,601 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 590 transitions. [2022-11-18 20:26:23,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 590 transitions. [2022-11-18 20:26:23,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:23,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 590 transitions. [2022-11-18 20:26:23,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 84.28571428571429) internal successors, (590), 7 states have internal predecessors, (590), 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) [2022-11-18 20:26:23,605 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) [2022-11-18 20:26:23,605 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) [2022-11-18 20:26:23,605 INFO L175 Difference]: Start difference. First operand has 152 places, 170 transitions, 1299 flow. Second operand 7 states and 590 transitions. [2022-11-18 20:26:23,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 214 transitions, 1841 flow [2022-11-18 20:26:23,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 214 transitions, 1829 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:26:23,635 INFO L231 Difference]: Finished difference. Result has 154 places, 169 transitions, 1295 flow [2022-11-18 20:26:23,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1295, PETRI_PLACES=154, PETRI_TRANSITIONS=169} [2022-11-18 20:26:23,638 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 75 predicate places. [2022-11-18 20:26:23,638 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 169 transitions, 1295 flow [2022-11-18 20:26:23,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 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) [2022-11-18 20:26:23,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:23,639 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2022-11-18 20:26:23,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:26:23,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:23,844 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:23,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:23,844 INFO L85 PathProgramCache]: Analyzing trace with hash -225842866, now seen corresponding path program 1 times [2022-11-18 20:26:23,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:23,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433145886] [2022-11-18 20:26:23,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:23,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:23,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:23,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433145886] [2022-11-18 20:26:23,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433145886] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:23,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323696579] [2022-11-18 20:26:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:23,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:23,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:23,983 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:24,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:26:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:24,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:26:24,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:24,160 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:24,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:24,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323696579] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:24,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:24,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-11-18 20:26:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162829902] [2022-11-18 20:26:24,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:24,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:26:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:24,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:26:24,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:26:24,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:24,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 169 transitions, 1295 flow. Second operand has 15 states, 15 states have (on average 82.46666666666667) internal successors, (1237), 15 states have internal predecessors, (1237), 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) [2022-11-18 20:26:24,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:24,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:24,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:25,291 INFO L130 PetriNetUnfolder]: 441/3062 cut-off events. [2022-11-18 20:26:25,291 INFO L131 PetriNetUnfolder]: For 40919/41259 co-relation queries the response was YES. [2022-11-18 20:26:25,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9943 conditions, 3062 events. 441/3062 cut-off events. For 40919/41259 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 26199 event pairs, 7 based on Foata normal form. 232/3265 useless extension candidates. Maximal degree in co-relation 9871. Up to 437 conditions per place. [2022-11-18 20:26:25,322 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 119 selfloop transitions, 208 changer transitions 0/395 dead transitions. [2022-11-18 20:26:25,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 395 transitions, 4126 flow [2022-11-18 20:26:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:26:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-18 20:26:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2917 transitions. [2022-11-18 20:26:25,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8249434389140271 [2022-11-18 20:26:25,330 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2917 transitions. [2022-11-18 20:26:25,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2917 transitions. [2022-11-18 20:26:25,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:25,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2917 transitions. [2022-11-18 20:26:25,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 85.79411764705883) internal successors, (2917), 34 states have internal predecessors, (2917), 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) [2022-11-18 20:26:25,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 104.0) internal successors, (3640), 35 states have internal predecessors, (3640), 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) [2022-11-18 20:26:25,349 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 104.0) internal successors, (3640), 35 states have internal predecessors, (3640), 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) [2022-11-18 20:26:25,349 INFO L175 Difference]: Start difference. First operand has 154 places, 169 transitions, 1295 flow. Second operand 34 states and 2917 transitions. [2022-11-18 20:26:25,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 395 transitions, 4126 flow [2022-11-18 20:26:25,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 395 transitions, 4115 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-18 20:26:25,404 INFO L231 Difference]: Finished difference. Result has 205 places, 337 transitions, 4047 flow [2022-11-18 20:26:25,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=4047, PETRI_PLACES=205, PETRI_TRANSITIONS=337} [2022-11-18 20:26:25,406 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 126 predicate places. [2022-11-18 20:26:25,406 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 337 transitions, 4047 flow [2022-11-18 20:26:25,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 82.46666666666667) internal successors, (1237), 15 states have internal predecessors, (1237), 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) [2022-11-18 20:26:25,406 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:25,407 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 20:26:25,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:25,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:26:25,619 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:25,621 INFO L85 PathProgramCache]: Analyzing trace with hash 960216155, now seen corresponding path program 1 times [2022-11-18 20:26:25,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:25,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727144859] [2022-11-18 20:26:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:25,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:25,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:25,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:25,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727144859] [2022-11-18 20:26:25,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727144859] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:25,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449151944] [2022-11-18 20:26:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:25,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:25,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:25,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:25,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:26:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:25,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:26:25,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:26,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:26,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449151944] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:26,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:26,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-18 20:26:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683381792] [2022-11-18 20:26:26,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:26,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:26:26,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:26,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:26:26,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:26:26,215 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:26,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 337 transitions, 4047 flow. Second operand has 18 states, 18 states have (on average 82.72222222222223) internal successors, (1489), 18 states have internal predecessors, (1489), 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) [2022-11-18 20:26:26,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:26,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:26,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:28,297 INFO L130 PetriNetUnfolder]: 696/5191 cut-off events. [2022-11-18 20:26:28,297 INFO L131 PetriNetUnfolder]: For 87597/88372 co-relation queries the response was YES. [2022-11-18 20:26:28,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18578 conditions, 5191 events. 696/5191 cut-off events. For 87597/88372 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 51900 event pairs, 14 based on Foata normal form. 401/5564 useless extension candidates. Maximal degree in co-relation 18483. Up to 819 conditions per place. [2022-11-18 20:26:28,374 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 202 selfloop transitions, 405 changer transitions 0/675 dead transitions. [2022-11-18 20:26:28,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 675 transitions, 9324 flow [2022-11-18 20:26:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-18 20:26:28,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-11-18 20:26:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4585 transitions. [2022-11-18 20:26:28,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.831821480406386 [2022-11-18 20:26:28,381 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 4585 transitions. [2022-11-18 20:26:28,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 4585 transitions. [2022-11-18 20:26:28,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:28,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 4585 transitions. [2022-11-18 20:26:28,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 86.50943396226415) internal successors, (4585), 53 states have internal predecessors, (4585), 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) [2022-11-18 20:26:28,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 104.0) internal successors, (5616), 54 states have internal predecessors, (5616), 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) [2022-11-18 20:26:28,412 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 104.0) internal successors, (5616), 54 states have internal predecessors, (5616), 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) [2022-11-18 20:26:28,412 INFO L175 Difference]: Start difference. First operand has 205 places, 337 transitions, 4047 flow. Second operand 53 states and 4585 transitions. [2022-11-18 20:26:28,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 675 transitions, 9324 flow [2022-11-18 20:26:28,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 675 transitions, 8399 flow, removed 447 selfloop flow, removed 7 redundant places. [2022-11-18 20:26:28,724 INFO L231 Difference]: Finished difference. Result has 275 places, 533 transitions, 7385 flow [2022-11-18 20:26:28,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=3348, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=7385, PETRI_PLACES=275, PETRI_TRANSITIONS=533} [2022-11-18 20:26:28,726 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 196 predicate places. [2022-11-18 20:26:28,726 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 533 transitions, 7385 flow [2022-11-18 20:26:28,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 82.72222222222223) internal successors, (1489), 18 states have internal predecessors, (1489), 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) [2022-11-18 20:26:28,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:28,727 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:26:28,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:26:28,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:26:28,933 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:28,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1608548488, now seen corresponding path program 1 times [2022-11-18 20:26:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:28,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145553674] [2022-11-18 20:26:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:29,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:29,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145553674] [2022-11-18 20:26:29,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145553674] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:29,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055817512] [2022-11-18 20:26:29,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:29,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:29,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:29,073 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:29,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:26:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:29,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:26:29,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:29,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:29,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:29,548 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:29,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055817512] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:29,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:29,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:26:29,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653961960] [2022-11-18 20:26:29,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:29,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-18 20:26:29,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:29,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-18 20:26:29,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:26:29,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:29,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 533 transitions, 7385 flow. Second operand has 19 states, 19 states have (on average 82.57894736842105) internal successors, (1569), 19 states have internal predecessors, (1569), 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) [2022-11-18 20:26:29,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:29,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:29,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:32,825 INFO L130 PetriNetUnfolder]: 1165/8239 cut-off events. [2022-11-18 20:26:32,825 INFO L131 PetriNetUnfolder]: For 259148/260618 co-relation queries the response was YES. [2022-11-18 20:26:32,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33218 conditions, 8239 events. 1165/8239 cut-off events. For 259148/260618 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 93186 event pairs, 9 based on Foata normal form. 744/8935 useless extension candidates. Maximal degree in co-relation 33097. Up to 1273 conditions per place. [2022-11-18 20:26:32,955 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 243 selfloop transitions, 743 changer transitions 0/1054 dead transitions. [2022-11-18 20:26:32,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1054 transitions, 17128 flow [2022-11-18 20:26:32,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-18 20:26:32,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2022-11-18 20:26:32,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5264 transitions. [2022-11-18 20:26:32,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8297604035308953 [2022-11-18 20:26:32,963 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5264 transitions. [2022-11-18 20:26:32,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5264 transitions. [2022-11-18 20:26:32,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:32,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5264 transitions. [2022-11-18 20:26:32,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 86.29508196721312) internal successors, (5264), 61 states have internal predecessors, (5264), 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) [2022-11-18 20:26:32,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 104.0) internal successors, (6448), 62 states have internal predecessors, (6448), 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) [2022-11-18 20:26:32,986 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 104.0) internal successors, (6448), 62 states have internal predecessors, (6448), 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) [2022-11-18 20:26:32,986 INFO L175 Difference]: Start difference. First operand has 275 places, 533 transitions, 7385 flow. Second operand 61 states and 5264 transitions. [2022-11-18 20:26:32,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 1054 transitions, 17128 flow [2022-11-18 20:26:33,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1054 transitions, 15022 flow, removed 1015 selfloop flow, removed 14 redundant places. [2022-11-18 20:26:33,808 INFO L231 Difference]: Finished difference. Result has 349 places, 900 transitions, 13992 flow [2022-11-18 20:26:33,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=6375, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=13992, PETRI_PLACES=349, PETRI_TRANSITIONS=900} [2022-11-18 20:26:33,809 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 270 predicate places. [2022-11-18 20:26:33,809 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 900 transitions, 13992 flow [2022-11-18 20:26:33,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 82.57894736842105) internal successors, (1569), 19 states have internal predecessors, (1569), 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) [2022-11-18 20:26:33,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:33,810 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-11-18 20:26:33,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:34,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:26:34,015 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2048114053, now seen corresponding path program 1 times [2022-11-18 20:26:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:34,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667360056] [2022-11-18 20:26:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:34,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:34,367 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:34,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:34,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667360056] [2022-11-18 20:26:34,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667360056] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:34,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314960119] [2022-11-18 20:26:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:34,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:34,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:34,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:34,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:26:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:34,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:26:34,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:34,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:35,034 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:35,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314960119] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:35,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:35,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2022-11-18 20:26:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606127005] [2022-11-18 20:26:35,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:35,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-18 20:26:35,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:35,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-18 20:26:35,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2022-11-18 20:26:35,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:35,046 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 900 transitions, 13992 flow. Second operand has 30 states, 30 states have (on average 82.7) internal successors, (2481), 30 states have internal predecessors, (2481), 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) [2022-11-18 20:26:35,046 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:35,046 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:35,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:26:48,706 INFO L130 PetriNetUnfolder]: 3072/23668 cut-off events. [2022-11-18 20:26:48,707 INFO L131 PetriNetUnfolder]: For 1932191/1935791 co-relation queries the response was YES. [2022-11-18 20:26:49,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96520 conditions, 23668 events. 3072/23668 cut-off events. For 1932191/1935791 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 312981 event pairs, 19 based on Foata normal form. 2462/26057 useless extension candidates. Maximal degree in co-relation 96370. Up to 3953 conditions per place. [2022-11-18 20:26:49,352 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 533 selfloop transitions, 2059 changer transitions 0/2660 dead transitions. [2022-11-18 20:26:49,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 2660 transitions, 49323 flow [2022-11-18 20:26:49,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-11-18 20:26:49,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2022-11-18 20:26:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 11923 transitions. [2022-11-18 20:26:49,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8368192026951151 [2022-11-18 20:26:49,392 INFO L72 ComplementDD]: Start complementDD. Operand 137 states and 11923 transitions. [2022-11-18 20:26:49,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 11923 transitions. [2022-11-18 20:26:49,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:26:49,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 137 states and 11923 transitions. [2022-11-18 20:26:49,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 138 states, 137 states have (on average 87.02919708029196) internal successors, (11923), 137 states have internal predecessors, (11923), 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) [2022-11-18 20:26:49,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 138 states, 138 states have (on average 104.0) internal successors, (14352), 138 states have internal predecessors, (14352), 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) [2022-11-18 20:26:49,713 INFO L81 ComplementDD]: Finished complementDD. Result has 138 states, 138 states have (on average 104.0) internal successors, (14352), 138 states have internal predecessors, (14352), 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) [2022-11-18 20:26:49,726 INFO L175 Difference]: Start difference. First operand has 349 places, 900 transitions, 13992 flow. Second operand 137 states and 11923 transitions. [2022-11-18 20:26:49,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 2660 transitions, 49323 flow [2022-11-18 20:26:52,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 2660 transitions, 46867 flow, removed 1182 selfloop flow, removed 13 redundant places. [2022-11-18 20:26:52,412 INFO L231 Difference]: Finished difference. Result has 555 places, 2285 transitions, 44143 flow [2022-11-18 20:26:52,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=13148, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=900, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=783, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=44143, PETRI_PLACES=555, PETRI_TRANSITIONS=2285} [2022-11-18 20:26:52,414 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 476 predicate places. [2022-11-18 20:26:52,414 INFO L495 AbstractCegarLoop]: Abstraction has has 555 places, 2285 transitions, 44143 flow [2022-11-18 20:26:52,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 82.7) internal successors, (2481), 30 states have internal predecessors, (2481), 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) [2022-11-18 20:26:52,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:26:52,415 INFO L209 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 10, 10, 2, 2, 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] [2022-11-18 20:26:52,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:26:52,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:26:52,621 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-11-18 20:26:52,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:26:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash -608688370, now seen corresponding path program 2 times [2022-11-18 20:26:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:26:52,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991385551] [2022-11-18 20:26:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:26:52,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:26:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:52,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:26:52,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991385551] [2022-11-18 20:26:52,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991385551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:26:52,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522182051] [2022-11-18 20:26:52,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:26:52,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:26:52,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:26:52,999 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:26:53,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba9d4328-de61-4757-9fdf-3fc76c2509e8/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:26:53,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:26:53,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:26:53,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:26:53,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:53,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:26:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:26:53,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522182051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:26:53,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:26:53,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-18 20:26:53,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394451672] [2022-11-18 20:26:53,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:26:53,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-18 20:26:53,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:26:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-18 20:26:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:26:53,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-18 20:26:53,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 2285 transitions, 44143 flow. Second operand has 35 states, 35 states have (on average 82.31428571428572) internal successors, (2881), 35 states have internal predecessors, (2881), 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) [2022-11-18 20:26:53,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:26:53,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-18 20:26:53,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand