./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/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_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN --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-6b4ec56 [2022-11-20 10:32:22,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:22,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:23,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:23,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:23,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:23,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:23,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:23,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:23,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:23,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:23,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:23,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:23,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:23,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:23,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:23,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:23,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:23,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:23,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:23,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:23,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:23,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:23,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:23,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:23,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:23,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:23,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:23,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:23,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:23,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:23,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:23,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:23,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:23,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:23,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:23,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:23,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:23,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:23,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:23,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:23,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:32:23,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:23,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:23,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:23,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:23,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:23,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:23,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:23,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:23,135 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:23,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:23,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:32:23,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:32:23,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:23,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:32:23,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:23,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:23,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:23,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:23,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:32:23,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:32:23,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:23,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:23,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:23,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:23,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:23,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:23,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:23,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:23,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:23,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:23,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:23,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:23,143 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:23,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:23,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:23,143 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_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2022-11-20 10:32:23,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:23,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:23,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:23,512 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:23,513 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:23,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-20 10:32:26,726 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:27,080 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:27,080 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2022-11-20 10:32:27,115 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/data/95ba6e7f3/eecb168cf9f1410a8d7f74fd1b398903/FLAG356b638ce [2022-11-20 10:32:27,133 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/data/95ba6e7f3/eecb168cf9f1410a8d7f74fd1b398903 [2022-11-20 10:32:27,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:27,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:27,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:27,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:27,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:27,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:27" (1/1) ... [2022-11-20 10:32:27,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436a620e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:27, skipping insertion in model container [2022-11-20 10:32:27,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:27" (1/1) ... [2022-11-20 10:32:27,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:27,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:27,496 WARN L237 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_b3354d27-dcbb-4b20-b94a-2604fb7e381a/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-20 10:32:28,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:28,208 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:28,224 WARN L237 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_b3354d27-dcbb-4b20-b94a-2604fb7e381a/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2022-11-20 10:32:28,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:28,345 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:28,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28 WrapperNode [2022-11-20 10:32:28,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:28,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:28,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:28,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:28,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,412 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2022-11-20 10:32:28,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:28,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:28,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:28,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:28,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,472 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:28,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:28,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:28,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:28,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (1/1) ... [2022-11-20 10:32:28,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:28,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:28,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:28,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:32:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:32:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:32:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:32:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:32:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2022-11-20 10:32:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2022-11-20 10:32:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:32:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:32:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:28,595 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:32:28,752 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:28,754 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:32:29,063 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:29,084 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:29,084 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:32:29,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:29 BoogieIcfgContainer [2022-11-20 10:32:29,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:29,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:29,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:29,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:29,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:27" (1/3) ... [2022-11-20 10:32:29,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fe209d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:29, skipping insertion in model container [2022-11-20 10:32:29,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:28" (2/3) ... [2022-11-20 10:32:29,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fe209d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:29, skipping insertion in model container [2022-11-20 10:32:29,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:29" (3/3) ... [2022-11-20 10:32:29,099 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2022-11-20 10:32:29,110 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:32:29,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:29,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 10:32:29,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:32:29,260 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 10:32:29,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 104 transitions, 216 flow [2022-11-20 10:32:29,430 INFO L130 PetriNetUnfolder]: 7/103 cut-off events. [2022-11-20 10:32:29,431 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 10:32:29,436 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. [2022-11-20 10:32:29,437 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 104 transitions, 216 flow [2022-11-20 10:32:29,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 80 transitions, 163 flow [2022-11-20 10:32:29,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:29,471 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;@40fee138, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:29,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-20 10:32:29,507 INFO L130 PetriNetUnfolder]: 2/49 cut-off events. [2022-11-20 10:32:29,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:32:29,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:29,508 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] [2022-11-20 10:32:29,509 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)] === [2022-11-20 10:32:29,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:29,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1294169796, now seen corresponding path program 1 times [2022-11-20 10:32:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:29,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219882696] [2022-11-20 10:32:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:29,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:29,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219882696] [2022-11-20 10:32:29,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219882696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:29,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:29,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:29,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369393969] [2022-11-20 10:32:29,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:29,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:29,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:30,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:30,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:30,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:30,016 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) [2022-11-20 10:32:30,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:30,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:30,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:30,185 INFO L130 PetriNetUnfolder]: 64/246 cut-off events. [2022-11-20 10:32:30,185 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 10:32:30,187 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. [2022-11-20 10:32:30,190 INFO L137 encePairwiseOnDemand]: 92/104 looper letters, 20 selfloop transitions, 7 changer transitions 0/91 dead transitions. [2022-11-20 10:32:30,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 91 transitions, 239 flow [2022-11-20 10:32:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 449 transitions. [2022-11-20 10:32:30,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8634615384615385 [2022-11-20 10:32:30,209 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 449 transitions. [2022-11-20 10:32:30,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 449 transitions. [2022-11-20 10:32:30,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:30,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 449 transitions. [2022-11-20 10:32:30,219 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) [2022-11-20 10:32:30,227 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) [2022-11-20 10:32:30,228 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) [2022-11-20 10:32:30,231 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 163 flow. Second operand 5 states and 449 transitions. [2022-11-20 10:32:30,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 91 transitions, 239 flow [2022-11-20 10:32:30,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:32:30,239 INFO L231 Difference]: Finished difference. Result has 85 places, 83 transitions, 218 flow [2022-11-20 10:32:30,242 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} [2022-11-20 10:32:30,246 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 6 predicate places. [2022-11-20 10:32:30,246 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 83 transitions, 218 flow [2022-11-20 10:32:30,247 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) [2022-11-20 10:32:30,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:30,247 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] [2022-11-20 10:32:30,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:32:30,248 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)] === [2022-11-20 10:32:30,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1113377736, now seen corresponding path program 1 times [2022-11-20 10:32:30,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:30,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343013571] [2022-11-20 10:32:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:30,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:30,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343013571] [2022-11-20 10:32:30,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343013571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:30,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:30,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:30,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673217285] [2022-11-20 10:32:30,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:30,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:30,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:30,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:30,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:30,464 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:30,465 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) [2022-11-20 10:32:30,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:30,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:30,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:30,734 INFO L130 PetriNetUnfolder]: 110/324 cut-off events. [2022-11-20 10:32:30,738 INFO L131 PetriNetUnfolder]: For 181/206 co-relation queries the response was YES. [2022-11-20 10:32:30,745 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. [2022-11-20 10:32:30,748 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 25 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2022-11-20 10:32:30,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 329 flow [2022-11-20 10:32:30,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:30,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:30,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 434 transitions. [2022-11-20 10:32:30,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8346153846153846 [2022-11-20 10:32:30,755 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 434 transitions. [2022-11-20 10:32:30,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 434 transitions. [2022-11-20 10:32:30,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:30,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 434 transitions. [2022-11-20 10:32:30,760 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) [2022-11-20 10:32:30,767 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) [2022-11-20 10:32:30,770 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) [2022-11-20 10:32:30,770 INFO L175 Difference]: Start difference. First operand has 85 places, 83 transitions, 218 flow. Second operand 5 states and 434 transitions. [2022-11-20 10:32:30,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 329 flow [2022-11-20 10:32:30,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 96 transitions, 329 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:32:30,780 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 250 flow [2022-11-20 10:32:30,781 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} [2022-11-20 10:32:30,783 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2022-11-20 10:32:30,783 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 250 flow [2022-11-20 10:32:30,784 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) [2022-11-20 10:32:30,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:30,784 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] [2022-11-20 10:32:30,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:32:30,786 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)] === [2022-11-20 10:32:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash -75420034, now seen corresponding path program 1 times [2022-11-20 10:32:30,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:30,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392569034] [2022-11-20 10:32:30,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:30,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:30,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:30,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:30,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392569034] [2022-11-20 10:32:30,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392569034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:30,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:30,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:30,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471170348] [2022-11-20 10:32:30,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:30,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:30,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:30,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:30,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:30,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-20 10:32:30,973 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) [2022-11-20 10:32:30,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:30,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-20 10:32:30,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:31,135 INFO L130 PetriNetUnfolder]: 50/286 cut-off events. [2022-11-20 10:32:31,136 INFO L131 PetriNetUnfolder]: For 91/119 co-relation queries the response was YES. [2022-11-20 10:32:31,138 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. [2022-11-20 10:32:31,140 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 21 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2022-11-20 10:32:31,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 94 transitions, 324 flow [2022-11-20 10:32:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 426 transitions. [2022-11-20 10:32:31,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8192307692307692 [2022-11-20 10:32:31,144 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 426 transitions. [2022-11-20 10:32:31,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 426 transitions. [2022-11-20 10:32:31,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:31,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 426 transitions. [2022-11-20 10:32:31,147 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) [2022-11-20 10:32:31,149 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) [2022-11-20 10:32:31,152 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) [2022-11-20 10:32:31,152 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 250 flow. Second operand 5 states and 426 transitions. [2022-11-20 10:32:31,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 94 transitions, 324 flow [2022-11-20 10:32:31,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 94 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:32:31,161 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 280 flow [2022-11-20 10:32:31,162 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} [2022-11-20 10:32:31,165 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 19 predicate places. [2022-11-20 10:32:31,166 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 280 flow [2022-11-20 10:32:31,167 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) [2022-11-20 10:32:31,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:31,167 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] [2022-11-20 10:32:31,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:32:31,170 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)] === [2022-11-20 10:32:31,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:31,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1235583057, now seen corresponding path program 1 times [2022-11-20 10:32:31,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:31,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91252728] [2022-11-20 10:32:31,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:31,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:31,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:31,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91252728] [2022-11-20 10:32:31,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91252728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:31,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:31,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:31,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615928120] [2022-11-20 10:32:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:31,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:32:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:32:31,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:31,353 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:31,354 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) [2022-11-20 10:32:31,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:31,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:31,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:31,625 INFO L130 PetriNetUnfolder]: 123/574 cut-off events. [2022-11-20 10:32:31,625 INFO L131 PetriNetUnfolder]: For 216/289 co-relation queries the response was YES. [2022-11-20 10:32:31,628 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. [2022-11-20 10:32:31,634 INFO L137 encePairwiseOnDemand]: 95/104 looper letters, 28 selfloop transitions, 18 changer transitions 0/116 dead transitions. [2022-11-20 10:32:31,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 116 transitions, 483 flow [2022-11-20 10:32:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:32:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 10:32:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 615 transitions. [2022-11-20 10:32:31,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8447802197802198 [2022-11-20 10:32:31,638 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 615 transitions. [2022-11-20 10:32:31,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 615 transitions. [2022-11-20 10:32:31,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:31,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 615 transitions. [2022-11-20 10:32:31,642 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) [2022-11-20 10:32:31,648 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) [2022-11-20 10:32:31,649 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) [2022-11-20 10:32:31,649 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 280 flow. Second operand 7 states and 615 transitions. [2022-11-20 10:32:31,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 116 transitions, 483 flow [2022-11-20 10:32:31,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 116 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:32:31,661 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 427 flow [2022-11-20 10:32:31,662 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} [2022-11-20 10:32:31,664 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 28 predicate places. [2022-11-20 10:32:31,664 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 427 flow [2022-11-20 10:32:31,670 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) [2022-11-20 10:32:31,671 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:31,671 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] [2022-11-20 10:32:31,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:32:31,673 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)] === [2022-11-20 10:32:31,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash -63550693, now seen corresponding path program 1 times [2022-11-20 10:32:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:31,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465753168] [2022-11-20 10:32:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:31,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:31,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:31,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465753168] [2022-11-20 10:32:31,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465753168] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:31,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274689695] [2022-11-20 10:32:31,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:31,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:31,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:31,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:31,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:32:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:31,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:32:31,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:32,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:32,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274689695] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:32,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:32:32,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-20 10:32:32,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393623894] [2022-11-20 10:32:32,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:32,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 10:32:32,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 10:32:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:32:32,227 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:32,229 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) [2022-11-20 10:32:32,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:32,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:32,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:33,137 INFO L130 PetriNetUnfolder]: 435/2016 cut-off events. [2022-11-20 10:32:33,137 INFO L131 PetriNetUnfolder]: For 4242/4547 co-relation queries the response was YES. [2022-11-20 10:32:33,147 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. [2022-11-20 10:32:33,160 INFO L137 encePairwiseOnDemand]: 94/104 looper letters, 68 selfloop transitions, 126 changer transitions 0/264 dead transitions. [2022-11-20 10:32:33,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 264 transitions, 1970 flow [2022-11-20 10:32:33,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-20 10:32:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-11-20 10:32:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2873 transitions. [2022-11-20 10:32:33,168 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8371212121212122 [2022-11-20 10:32:33,168 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2873 transitions. [2022-11-20 10:32:33,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2873 transitions. [2022-11-20 10:32:33,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:33,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2873 transitions. [2022-11-20 10:32:33,178 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) [2022-11-20 10:32:33,185 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) [2022-11-20 10:32:33,187 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) [2022-11-20 10:32:33,187 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 427 flow. Second operand 33 states and 2873 transitions. [2022-11-20 10:32:33,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 264 transitions, 1970 flow [2022-11-20 10:32:33,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 264 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:33,206 INFO L231 Difference]: Finished difference. Result has 160 places, 217 transitions, 1978 flow [2022-11-20 10:32:33,206 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} [2022-11-20 10:32:33,207 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-11-20 10:32:33,207 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 217 transitions, 1978 flow [2022-11-20 10:32:33,208 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) [2022-11-20 10:32:33,208 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:33,208 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] [2022-11-20 10:32:33,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:33,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:33,415 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)] === [2022-11-20 10:32:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:33,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1850071820, now seen corresponding path program 1 times [2022-11-20 10:32:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:33,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732759305] [2022-11-20 10:32:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:33,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:33,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:33,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:33,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732759305] [2022-11-20 10:32:33,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732759305] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:33,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382949241] [2022-11-20 10:32:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:33,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:33,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:33,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:33,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:32:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:33,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 10:32:33,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:33,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:33,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382949241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:33,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:32:33,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-20 10:32:33,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234483428] [2022-11-20 10:32:33,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:33,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:33,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:33,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:33,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:33,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 104 [2022-11-20 10:32:33,690 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) [2022-11-20 10:32:33,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:33,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 104 [2022-11-20 10:32:33,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:34,095 INFO L130 PetriNetUnfolder]: 252/1394 cut-off events. [2022-11-20 10:32:34,096 INFO L131 PetriNetUnfolder]: For 14864/15222 co-relation queries the response was YES. [2022-11-20 10:32:34,105 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. [2022-11-20 10:32:34,115 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 95 selfloop transitions, 19 changer transitions 0/229 dead transitions. [2022-11-20 10:32:34,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 229 transitions, 2346 flow [2022-11-20 10:32:34,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 10:32:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-20 10:32:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2022-11-20 10:32:34,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8725961538461539 [2022-11-20 10:32:34,118 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2022-11-20 10:32:34,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2022-11-20 10:32:34,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:34,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2022-11-20 10:32:34,120 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) [2022-11-20 10:32:34,121 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) [2022-11-20 10:32:34,122 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) [2022-11-20 10:32:34,122 INFO L175 Difference]: Start difference. First operand has 160 places, 217 transitions, 1978 flow. Second operand 4 states and 363 transitions. [2022-11-20 10:32:34,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 229 transitions, 2346 flow [2022-11-20 10:32:34,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 1830 flow, removed 247 selfloop flow, removed 4 redundant places. [2022-11-20 10:32:34,225 INFO L231 Difference]: Finished difference. Result has 160 places, 211 transitions, 1568 flow [2022-11-20 10:32:34,226 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} [2022-11-20 10:32:34,227 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 81 predicate places. [2022-11-20 10:32:34,227 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 211 transitions, 1568 flow [2022-11-20 10:32:34,227 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) [2022-11-20 10:32:34,227 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:34,228 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] [2022-11-20 10:32:34,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:34,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:32:34,434 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)] === [2022-11-20 10:32:34,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash -351630609, now seen corresponding path program 1 times [2022-11-20 10:32:34,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:34,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287889596] [2022-11-20 10:32:34,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:34,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:34,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:34,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:34,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287889596] [2022-11-20 10:32:34,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287889596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:34,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:34,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:32:34,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011549103] [2022-11-20 10:32:34,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:34,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:32:34,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:34,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:32:34,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:32:34,524 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:34,524 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) [2022-11-20 10:32:34,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:34,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:34,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:35,201 INFO L130 PetriNetUnfolder]: 408/2035 cut-off events. [2022-11-20 10:32:35,202 INFO L131 PetriNetUnfolder]: For 25290/25666 co-relation queries the response was YES. [2022-11-20 10:32:35,217 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. [2022-11-20 10:32:35,234 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 174 selfloop transitions, 23 changer transitions 0/267 dead transitions. [2022-11-20 10:32:35,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 267 transitions, 2568 flow [2022-11-20 10:32:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:32:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:32:35,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2022-11-20 10:32:35,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2022-11-20 10:32:35,243 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2022-11-20 10:32:35,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2022-11-20 10:32:35,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:35,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2022-11-20 10:32:35,246 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) [2022-11-20 10:32:35,247 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) [2022-11-20 10:32:35,248 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) [2022-11-20 10:32:35,248 INFO L175 Difference]: Start difference. First operand has 160 places, 211 transitions, 1568 flow. Second operand 6 states and 528 transitions. [2022-11-20 10:32:35,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 267 transitions, 2568 flow [2022-11-20 10:32:35,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 267 transitions, 2484 flow, removed 18 selfloop flow, removed 2 redundant places. [2022-11-20 10:32:35,337 INFO L231 Difference]: Finished difference. Result has 165 places, 217 transitions, 1799 flow [2022-11-20 10:32:35,338 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} [2022-11-20 10:32:35,340 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 86 predicate places. [2022-11-20 10:32:35,340 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 217 transitions, 1799 flow [2022-11-20 10:32:35,341 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) [2022-11-20 10:32:35,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:35,341 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] [2022-11-20 10:32:35,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:32:35,342 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)] === [2022-11-20 10:32:35,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1970071195, now seen corresponding path program 1 times [2022-11-20 10:32:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:35,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728188097] [2022-11-20 10:32:35,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:35,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:35,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:35,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728188097] [2022-11-20 10:32:35,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728188097] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:35,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425475292] [2022-11-20 10:32:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:35,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:35,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:35,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:35,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:32:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:35,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 10:32:35,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:35,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:35,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425475292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:35,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:32:35,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 10:32:35,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630272452] [2022-11-20 10:32:35,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:35,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:35,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:32:35,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:35,719 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) [2022-11-20 10:32:35,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:35,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:35,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:36,274 INFO L130 PetriNetUnfolder]: 282/1688 cut-off events. [2022-11-20 10:32:36,275 INFO L131 PetriNetUnfolder]: For 20157/20470 co-relation queries the response was YES. [2022-11-20 10:32:36,288 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. [2022-11-20 10:32:36,299 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 95 selfloop transitions, 15 changer transitions 0/180 dead transitions. [2022-11-20 10:32:36,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 180 transitions, 1668 flow [2022-11-20 10:32:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:32:36,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 10:32:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 678 transitions. [2022-11-20 10:32:36,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8149038461538461 [2022-11-20 10:32:36,302 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 678 transitions. [2022-11-20 10:32:36,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 678 transitions. [2022-11-20 10:32:36,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:36,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 678 transitions. [2022-11-20 10:32:36,304 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) [2022-11-20 10:32:36,307 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) [2022-11-20 10:32:36,307 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) [2022-11-20 10:32:36,308 INFO L175 Difference]: Start difference. First operand has 165 places, 217 transitions, 1799 flow. Second operand 8 states and 678 transitions. [2022-11-20 10:32:36,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 180 transitions, 1668 flow [2022-11-20 10:32:36,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 180 transitions, 1576 flow, removed 32 selfloop flow, removed 10 redundant places. [2022-11-20 10:32:36,349 INFO L231 Difference]: Finished difference. Result has 152 places, 171 transitions, 1289 flow [2022-11-20 10:32:36,350 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} [2022-11-20 10:32:36,354 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 73 predicate places. [2022-11-20 10:32:36,354 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 171 transitions, 1289 flow [2022-11-20 10:32:36,355 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) [2022-11-20 10:32:36,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:36,355 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] [2022-11-20 10:32:36,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:36,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:36,561 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)] === [2022-11-20 10:32:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:36,562 INFO L85 PathProgramCache]: Analyzing trace with hash -197433599, now seen corresponding path program 1 times [2022-11-20 10:32:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:36,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856708073] [2022-11-20 10:32:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:36,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:32:36,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:36,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856708073] [2022-11-20 10:32:36,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856708073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:36,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:36,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:36,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649116013] [2022-11-20 10:32:36,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:36,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:36,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:36,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:36,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-20 10:32:36,621 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) [2022-11-20 10:32:36,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:36,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-20 10:32:36,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:36,963 INFO L130 PetriNetUnfolder]: 176/1253 cut-off events. [2022-11-20 10:32:36,963 INFO L131 PetriNetUnfolder]: For 8559/8970 co-relation queries the response was YES. [2022-11-20 10:32:36,974 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. [2022-11-20 10:32:36,983 INFO L137 encePairwiseOnDemand]: 98/104 looper letters, 33 selfloop transitions, 8 changer transitions 0/171 dead transitions. [2022-11-20 10:32:36,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 171 transitions, 1369 flow [2022-11-20 10:32:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:36,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:36,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 415 transitions. [2022-11-20 10:32:36,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7980769230769231 [2022-11-20 10:32:36,986 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 415 transitions. [2022-11-20 10:32:36,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 415 transitions. [2022-11-20 10:32:36,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:36,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 415 transitions. [2022-11-20 10:32:36,988 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) [2022-11-20 10:32:36,989 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) [2022-11-20 10:32:36,990 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) [2022-11-20 10:32:36,990 INFO L175 Difference]: Start difference. First operand has 152 places, 171 transitions, 1289 flow. Second operand 5 states and 415 transitions. [2022-11-20 10:32:36,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 171 transitions, 1369 flow [2022-11-20 10:32:37,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 171 transitions, 1354 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:32:37,019 INFO L231 Difference]: Finished difference. Result has 151 places, 171 transitions, 1294 flow [2022-11-20 10:32:37,020 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} [2022-11-20 10:32:37,021 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 72 predicate places. [2022-11-20 10:32:37,021 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 171 transitions, 1294 flow [2022-11-20 10:32:37,021 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) [2022-11-20 10:32:37,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:37,022 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] [2022-11-20 10:32:37,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:32:37,022 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)] === [2022-11-20 10:32:37,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:37,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1825474075, now seen corresponding path program 1 times [2022-11-20 10:32:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:37,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357679234] [2022-11-20 10:32:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:37,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:37,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:37,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:37,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357679234] [2022-11-20 10:32:37,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357679234] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740006683] [2022-11-20 10:32:37,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:37,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:37,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:37,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:37,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:32:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:37,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:32:37,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:37,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:37,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740006683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:37,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:32:37,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 10:32:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649855961] [2022-11-20 10:32:37,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:37,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:37,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:37,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:32:37,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2022-11-20 10:32:37,299 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) [2022-11-20 10:32:37,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:37,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2022-11-20 10:32:37,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:37,664 INFO L130 PetriNetUnfolder]: 179/1229 cut-off events. [2022-11-20 10:32:37,664 INFO L131 PetriNetUnfolder]: For 8822/9210 co-relation queries the response was YES. [2022-11-20 10:32:37,676 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. [2022-11-20 10:32:37,684 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 44 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2022-11-20 10:32:37,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 180 transitions, 1460 flow [2022-11-20 10:32:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:32:37,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 10:32:37,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 580 transitions. [2022-11-20 10:32:37,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967032967032966 [2022-11-20 10:32:37,688 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 580 transitions. [2022-11-20 10:32:37,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 580 transitions. [2022-11-20 10:32:37,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:37,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 580 transitions. [2022-11-20 10:32:37,690 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) [2022-11-20 10:32:37,692 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) [2022-11-20 10:32:37,693 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) [2022-11-20 10:32:37,693 INFO L175 Difference]: Start difference. First operand has 151 places, 171 transitions, 1294 flow. Second operand 7 states and 580 transitions. [2022-11-20 10:32:37,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 180 transitions, 1460 flow [2022-11-20 10:32:37,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 180 transitions, 1448 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:32:37,725 INFO L231 Difference]: Finished difference. Result has 153 places, 170 transitions, 1290 flow [2022-11-20 10:32:37,726 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} [2022-11-20 10:32:37,726 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 74 predicate places. [2022-11-20 10:32:37,727 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 170 transitions, 1290 flow [2022-11-20 10:32:37,727 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) [2022-11-20 10:32:37,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:37,728 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] [2022-11-20 10:32:37,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:37,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 10:32:37,934 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)] === [2022-11-20 10:32:37,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:37,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2134819551, now seen corresponding path program 1 times [2022-11-20 10:32:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:37,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559961126] [2022-11-20 10:32:37,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:37,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:32:37,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559961126] [2022-11-20 10:32:37,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559961126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:37,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:37,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:37,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488603389] [2022-11-20 10:32:37,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:37,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:32:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:32:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:32:37,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:37,989 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) [2022-11-20 10:32:37,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:37,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:37,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:38,371 INFO L130 PetriNetUnfolder]: 409/1641 cut-off events. [2022-11-20 10:32:38,371 INFO L131 PetriNetUnfolder]: For 12011/12193 co-relation queries the response was YES. [2022-11-20 10:32:38,382 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. [2022-11-20 10:32:38,392 INFO L137 encePairwiseOnDemand]: 98/104 looper letters, 66 selfloop transitions, 8 changer transitions 0/204 dead transitions. [2022-11-20 10:32:38,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 204 transitions, 1732 flow [2022-11-20 10:32:38,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:32:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:32:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 422 transitions. [2022-11-20 10:32:38,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8115384615384615 [2022-11-20 10:32:38,395 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 422 transitions. [2022-11-20 10:32:38,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 422 transitions. [2022-11-20 10:32:38,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:38,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 422 transitions. [2022-11-20 10:32:38,397 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) [2022-11-20 10:32:38,399 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) [2022-11-20 10:32:38,399 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) [2022-11-20 10:32:38,399 INFO L175 Difference]: Start difference. First operand has 153 places, 170 transitions, 1290 flow. Second operand 5 states and 422 transitions. [2022-11-20 10:32:38,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 204 transitions, 1732 flow [2022-11-20 10:32:38,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 204 transitions, 1721 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-20 10:32:38,433 INFO L231 Difference]: Finished difference. Result has 152 places, 170 transitions, 1299 flow [2022-11-20 10:32:38,434 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} [2022-11-20 10:32:38,434 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 73 predicate places. [2022-11-20 10:32:38,434 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 170 transitions, 1299 flow [2022-11-20 10:32:38,435 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) [2022-11-20 10:32:38,435 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:38,435 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] [2022-11-20 10:32:38,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:32:38,436 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)] === [2022-11-20 10:32:38,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1754896937, now seen corresponding path program 1 times [2022-11-20 10:32:38,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:38,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435071219] [2022-11-20 10:32:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:38,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:38,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:38,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:38,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435071219] [2022-11-20 10:32:38,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435071219] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:38,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453947109] [2022-11-20 10:32:38,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:38,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:38,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:38,541 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:38,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:32:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:38,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 10:32:38,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:38,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:38,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453947109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:38,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:32:38,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 10:32:38,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53636874] [2022-11-20 10:32:38,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:38,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:32:38,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:38,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:32:38,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:32:38,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:38,726 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) [2022-11-20 10:32:38,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:38,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:38,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:39,174 INFO L130 PetriNetUnfolder]: 395/1610 cut-off events. [2022-11-20 10:32:39,174 INFO L131 PetriNetUnfolder]: For 11250/11383 co-relation queries the response was YES. [2022-11-20 10:32:39,184 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. [2022-11-20 10:32:39,192 INFO L137 encePairwiseOnDemand]: 99/104 looper letters, 78 selfloop transitions, 6 changer transitions 0/214 dead transitions. [2022-11-20 10:32:39,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 214 transitions, 1841 flow [2022-11-20 10:32:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:32:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 10:32:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 590 transitions. [2022-11-20 10:32:39,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8104395604395604 [2022-11-20 10:32:39,195 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 590 transitions. [2022-11-20 10:32:39,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 590 transitions. [2022-11-20 10:32:39,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:39,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 590 transitions. [2022-11-20 10:32:39,198 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) [2022-11-20 10:32:39,199 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) [2022-11-20 10:32:39,200 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) [2022-11-20 10:32:39,200 INFO L175 Difference]: Start difference. First operand has 152 places, 170 transitions, 1299 flow. Second operand 7 states and 590 transitions. [2022-11-20 10:32:39,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 214 transitions, 1841 flow [2022-11-20 10:32:39,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 214 transitions, 1829 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:32:39,233 INFO L231 Difference]: Finished difference. Result has 154 places, 169 transitions, 1295 flow [2022-11-20 10:32:39,234 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} [2022-11-20 10:32:39,234 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 75 predicate places. [2022-11-20 10:32:39,235 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 169 transitions, 1295 flow [2022-11-20 10:32:39,235 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) [2022-11-20 10:32:39,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:39,236 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] [2022-11-20 10:32:39,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:39,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 10:32:39,442 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)] === [2022-11-20 10:32:39,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash -225842866, now seen corresponding path program 1 times [2022-11-20 10:32:39,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:39,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994741533] [2022-11-20 10:32:39,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:39,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994741533] [2022-11-20 10:32:39,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994741533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:39,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666562891] [2022-11-20 10:32:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:39,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:39,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:32:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:39,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:32:39,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:39,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:40,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666562891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:40,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:32:40,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-11-20 10:32:40,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475722636] [2022-11-20 10:32:40,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:40,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 10:32:40,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:40,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 10:32:40,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2022-11-20 10:32:40,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:40,023 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) [2022-11-20 10:32:40,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:40,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:40,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:41,180 INFO L130 PetriNetUnfolder]: 441/3062 cut-off events. [2022-11-20 10:32:41,180 INFO L131 PetriNetUnfolder]: For 40919/41259 co-relation queries the response was YES. [2022-11-20 10:32:41,205 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. [2022-11-20 10:32:41,218 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 119 selfloop transitions, 208 changer transitions 0/395 dead transitions. [2022-11-20 10:32:41,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 395 transitions, 4126 flow [2022-11-20 10:32:41,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-20 10:32:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-20 10:32:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 2917 transitions. [2022-11-20 10:32:41,227 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8249434389140271 [2022-11-20 10:32:41,227 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 2917 transitions. [2022-11-20 10:32:41,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 2917 transitions. [2022-11-20 10:32:41,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:41,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 2917 transitions. [2022-11-20 10:32:41,239 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) [2022-11-20 10:32:41,248 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) [2022-11-20 10:32:41,250 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) [2022-11-20 10:32:41,250 INFO L175 Difference]: Start difference. First operand has 154 places, 169 transitions, 1295 flow. Second operand 34 states and 2917 transitions. [2022-11-20 10:32:41,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 395 transitions, 4126 flow [2022-11-20 10:32:41,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 395 transitions, 4115 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-20 10:32:41,313 INFO L231 Difference]: Finished difference. Result has 205 places, 337 transitions, 4047 flow [2022-11-20 10:32:41,314 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} [2022-11-20 10:32:41,315 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 126 predicate places. [2022-11-20 10:32:41,315 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 337 transitions, 4047 flow [2022-11-20 10:32:41,316 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) [2022-11-20 10:32:41,316 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:41,316 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] [2022-11-20 10:32:41,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:41,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 10:32:41,523 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)] === [2022-11-20 10:32:41,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:41,523 INFO L85 PathProgramCache]: Analyzing trace with hash 960216155, now seen corresponding path program 1 times [2022-11-20 10:32:41,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:41,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123382386] [2022-11-20 10:32:41,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123382386] [2022-11-20 10:32:41,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123382386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366845404] [2022-11-20 10:32:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:41,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:41,691 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:41,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-20 10:32:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:41,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:32:41,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:41,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:42,162 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:42,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366845404] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:42,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:32:42,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-20 10:32:42,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437239526] [2022-11-20 10:32:42,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:42,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:32:42,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:32:42,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:32:42,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:42,168 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) [2022-11-20 10:32:42,169 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:42,169 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:42,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:44,552 INFO L130 PetriNetUnfolder]: 696/5191 cut-off events. [2022-11-20 10:32:44,552 INFO L131 PetriNetUnfolder]: For 87597/88372 co-relation queries the response was YES. [2022-11-20 10:32:44,609 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. [2022-11-20 10:32:44,636 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 202 selfloop transitions, 405 changer transitions 0/675 dead transitions. [2022-11-20 10:32:44,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 675 transitions, 9324 flow [2022-11-20 10:32:44,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-20 10:32:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2022-11-20 10:32:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 4585 transitions. [2022-11-20 10:32:44,648 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.831821480406386 [2022-11-20 10:32:44,648 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 4585 transitions. [2022-11-20 10:32:44,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 4585 transitions. [2022-11-20 10:32:44,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:44,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 4585 transitions. [2022-11-20 10:32:44,660 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) [2022-11-20 10:32:44,671 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) [2022-11-20 10:32:44,691 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) [2022-11-20 10:32:44,692 INFO L175 Difference]: Start difference. First operand has 205 places, 337 transitions, 4047 flow. Second operand 53 states and 4585 transitions. [2022-11-20 10:32:44,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 675 transitions, 9324 flow [2022-11-20 10:32:44,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 675 transitions, 8399 flow, removed 447 selfloop flow, removed 7 redundant places. [2022-11-20 10:32:45,007 INFO L231 Difference]: Finished difference. Result has 275 places, 533 transitions, 7385 flow [2022-11-20 10:32:45,008 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} [2022-11-20 10:32:45,009 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 196 predicate places. [2022-11-20 10:32:45,009 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 533 transitions, 7385 flow [2022-11-20 10:32:45,010 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) [2022-11-20 10:32:45,010 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:45,011 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] [2022-11-20 10:32:45,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:45,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-20 10:32:45,216 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)] === [2022-11-20 10:32:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1608548488, now seen corresponding path program 1 times [2022-11-20 10:32:45,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:45,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513083220] [2022-11-20 10:32:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:45,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:45,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:45,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513083220] [2022-11-20 10:32:45,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513083220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:45,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434433032] [2022-11-20 10:32:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:45,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:45,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:45,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:45,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-20 10:32:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:45,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 10:32:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:45,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:45,865 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:45,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434433032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:45,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:32:45,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 10:32:45,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352079456] [2022-11-20 10:32:45,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:45,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 10:32:45,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:45,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 10:32:45,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-11-20 10:32:45,871 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:45,873 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) [2022-11-20 10:32:45,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:45,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:45,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:32:50,430 INFO L130 PetriNetUnfolder]: 1165/8239 cut-off events. [2022-11-20 10:32:50,431 INFO L131 PetriNetUnfolder]: For 259148/260618 co-relation queries the response was YES. [2022-11-20 10:32:50,520 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. [2022-11-20 10:32:50,563 INFO L137 encePairwiseOnDemand]: 96/104 looper letters, 243 selfloop transitions, 743 changer transitions 0/1054 dead transitions. [2022-11-20 10:32:50,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1054 transitions, 17128 flow [2022-11-20 10:32:50,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-20 10:32:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2022-11-20 10:32:50,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5264 transitions. [2022-11-20 10:32:50,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8297604035308953 [2022-11-20 10:32:50,579 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5264 transitions. [2022-11-20 10:32:50,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5264 transitions. [2022-11-20 10:32:50,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:32:50,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5264 transitions. [2022-11-20 10:32:50,597 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) [2022-11-20 10:32:50,611 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) [2022-11-20 10:32:50,613 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) [2022-11-20 10:32:50,614 INFO L175 Difference]: Start difference. First operand has 275 places, 533 transitions, 7385 flow. Second operand 61 states and 5264 transitions. [2022-11-20 10:32:50,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 1054 transitions, 17128 flow [2022-11-20 10:32:51,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1054 transitions, 15022 flow, removed 1015 selfloop flow, removed 14 redundant places. [2022-11-20 10:32:51,315 INFO L231 Difference]: Finished difference. Result has 349 places, 900 transitions, 13992 flow [2022-11-20 10:32:51,316 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} [2022-11-20 10:32:51,316 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 270 predicate places. [2022-11-20 10:32:51,317 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 900 transitions, 13992 flow [2022-11-20 10:32:51,317 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) [2022-11-20 10:32:51,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:32:51,318 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] [2022-11-20 10:32:51,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-20 10:32:51,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:51,523 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)] === [2022-11-20 10:32:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2048114053, now seen corresponding path program 1 times [2022-11-20 10:32:51,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:32:51,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777574012] [2022-11-20 10:32:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:32:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:51,919 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:51,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:32:51,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777574012] [2022-11-20 10:32:51,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777574012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:32:51,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026300207] [2022-11-20 10:32:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:51,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:32:51,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:51,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:32:51,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-20 10:32:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:52,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 10:32:52,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:52,227 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:52,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:32:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:32:52,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026300207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:32:52,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:32:52,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 29 [2022-11-20 10:32:52,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841980238] [2022-11-20 10:32:52,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:32:52,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-20 10:32:52,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:32:52,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-20 10:32:52,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2022-11-20 10:32:52,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:32:52,627 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) [2022-11-20 10:32:52,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:32:52,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:32:52,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:33:06,538 INFO L130 PetriNetUnfolder]: 3072/23668 cut-off events. [2022-11-20 10:33:06,539 INFO L131 PetriNetUnfolder]: For 1932191/1935791 co-relation queries the response was YES. [2022-11-20 10:33:07,047 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. [2022-11-20 10:33:07,166 INFO L137 encePairwiseOnDemand]: 97/104 looper letters, 533 selfloop transitions, 2059 changer transitions 0/2660 dead transitions. [2022-11-20 10:33:07,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 2660 transitions, 49323 flow [2022-11-20 10:33:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-11-20 10:33:07,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2022-11-20 10:33:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 11923 transitions. [2022-11-20 10:33:07,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8368192026951151 [2022-11-20 10:33:07,195 INFO L72 ComplementDD]: Start complementDD. Operand 137 states and 11923 transitions. [2022-11-20 10:33:07,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 11923 transitions. [2022-11-20 10:33:07,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:33:07,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 137 states and 11923 transitions. [2022-11-20 10:33:07,222 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) [2022-11-20 10:33:07,245 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) [2022-11-20 10:33:07,252 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) [2022-11-20 10:33:07,252 INFO L175 Difference]: Start difference. First operand has 349 places, 900 transitions, 13992 flow. Second operand 137 states and 11923 transitions. [2022-11-20 10:33:07,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 2660 transitions, 49323 flow [2022-11-20 10:33:10,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 2660 transitions, 46867 flow, removed 1182 selfloop flow, removed 13 redundant places. [2022-11-20 10:33:10,093 INFO L231 Difference]: Finished difference. Result has 555 places, 2285 transitions, 44143 flow [2022-11-20 10:33:10,095 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} [2022-11-20 10:33:10,095 INFO L288 CegarLoopForPetriNet]: 79 programPoint places, 476 predicate places. [2022-11-20 10:33:10,096 INFO L495 AbstractCegarLoop]: Abstraction has has 555 places, 2285 transitions, 44143 flow [2022-11-20 10:33:10,097 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) [2022-11-20 10:33:10,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:33:10,097 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] [2022-11-20 10:33:10,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-20 10:33:10,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:33:10,303 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)] === [2022-11-20 10:33:10,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash -608688370, now seen corresponding path program 2 times [2022-11-20 10:33:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:33:10,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212723557] [2022-11-20 10:33:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:33:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:10,859 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:33:10,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:33:10,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212723557] [2022-11-20 10:33:10,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212723557] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:33:10,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498489141] [2022-11-20 10:33:10,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:33:10,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:33:10,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:33:10,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:33:10,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3354d27-dcbb-4b20-b94a-2604fb7e381a/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-20 10:33:10,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:33:10,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:33:10,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:33:10,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:33:11,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:33:11,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498489141] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:33:11,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:33:11,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-20 10:33:11,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377865054] [2022-11-20 10:33:11,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:33:11,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-20 10:33:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:33:11,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-20 10:33:11,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2022-11-20 10:33:11,746 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2022-11-20 10:33:11,749 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) [2022-11-20 10:33:11,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:33:11,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2022-11-20 10:33:11,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand