./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP --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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:51:09,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:51:10,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:51:10,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:51:10,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:51:10,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:51:10,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:51:10,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:51:10,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:51:10,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:51:10,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:51:10,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:51:10,066 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:51:10,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:51:10,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:51:10,068 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:51:10,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:51:10,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:51:10,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:51:10,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:51:10,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:51:10,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:51:10,078 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:51:10,079 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:51:10,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:51:10,080 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:51:10,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:51:10,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:51:10,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:51:10,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:51:10,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:51:10,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:51:10,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:51:10,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:51:10,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:51:10,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:51:10,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:51:10,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:51:10,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:51:10,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:51:10,094 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:51:10,094 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 [2023-11-06 22:51:10,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:51:10,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:51:10,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:51:10,499 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:51:10,500 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:51:10,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-06 22:51:13,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:51:14,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:51:14,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2023-11-06 22:51:14,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/data/c7f9413e1/a594058c966240a69943007c21608810/FLAG3beac7db9 [2023-11-06 22:51:14,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/data/c7f9413e1/a594058c966240a69943007c21608810 [2023-11-06 22:51:14,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:51:14,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:51:14,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:51:14,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:51:14,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:51:14,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:14" (1/1) ... [2023-11-06 22:51:14,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f149b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:14, skipping insertion in model container [2023-11-06 22:51:14,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:51:14" (1/1) ... [2023-11-06 22:51:14,236 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:51:14,432 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:51:15,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:51:15,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:51:15,136 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:51:15,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:51:15,389 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:51:15,389 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:51:15,390 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:51:15,398 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:51:15,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15 WrapperNode [2023-11-06 22:51:15,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:51:15,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:51:15,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:51:15,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:51:15,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,502 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-06 22:51:15,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:51:15,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:51:15,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:51:15,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:51:15,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,591 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:51:15,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:51:15,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:51:15,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:51:15,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (1/1) ... [2023-11-06 22:51:15,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:51:15,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:51:15,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:51:15,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae75ce3c-c0bc-4e3c-a53b-bf0109dd40af/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:51:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:51:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:51:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:51:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:51:15,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:51:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:51:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:51:15,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:51:15,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:51:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-06 22:51:15,699 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-06 22:51:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:51:15,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:51:15,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:51:15,701 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:51:16,106 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:51:16,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:51:16,433 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:51:16,527 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:51:16,533 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:51:16,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:16 BoogieIcfgContainer [2023-11-06 22:51:16,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:51:16,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:51:16,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:51:16,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:51:16,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:51:14" (1/3) ... [2023-11-06 22:51:16,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1747d441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:16, skipping insertion in model container [2023-11-06 22:51:16,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:51:15" (2/3) ... [2023-11-06 22:51:16,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1747d441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:51:16, skipping insertion in model container [2023-11-06 22:51:16,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:51:16" (3/3) ... [2023-11-06 22:51:16,546 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-11-06 22:51:16,555 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:51:16,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:51:16,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:51:16,565 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:51:16,659 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:51:16,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-06 22:51:16,834 INFO L124 PetriNetUnfolderBase]: 14/249 cut-off events. [2023-11-06 22:51:16,835 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:51:16,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 249 events. 14/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 496 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 124. Up to 4 conditions per place. [2023-11-06 22:51:16,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 404 flow [2023-11-06 22:51:16,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2023-11-06 22:51:16,853 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:51:16,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-06 22:51:16,876 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-06 22:51:16,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2023-11-06 22:51:16,959 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-06 22:51:16,959 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:51:16,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 150 events. 4/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 189 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 107. Up to 2 conditions per place. [2023-11-06 22:51:16,966 INFO L119 LiptonReduction]: Number of co-enabled transitions 5580 [2023-11-06 22:51:27,548 INFO L134 LiptonReduction]: Checked pairs total: 12904 [2023-11-06 22:51:27,548 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-06 22:51:27,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:51:27,586 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;@61c82334, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:51:27,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:51:27,597 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:51:27,597 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:51:27,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:51:27,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:27,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:51:27,599 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:27,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:27,606 INFO L85 PathProgramCache]: Analyzing trace with hash 673251767, now seen corresponding path program 1 times [2023-11-06 22:51:27,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:27,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372705952] [2023-11-06 22:51:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:27,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:28,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372705952] [2023-11-06 22:51:28,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372705952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:28,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:28,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:51:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007701288] [2023-11-06 22:51:28,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:29,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:51:29,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:51:29,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:51:29,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 337 [2023-11-06 22:51:29,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2023-11-06 22:51:29,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:29,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 337 [2023-11-06 22:51:29,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:29,882 INFO L124 PetriNetUnfolderBase]: 1195/1938 cut-off events. [2023-11-06 22:51:29,883 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-06 22:51:29,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3898 conditions, 1938 events. 1195/1938 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9161 event pairs, 1190 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 3820. Up to 1926 conditions per place. [2023-11-06 22:51:29,905 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 29 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2023-11-06 22:51:29,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 159 flow [2023-11-06 22:51:29,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:51:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2023-11-06 22:51:29,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4826904055390702 [2023-11-06 22:51:29,934 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2023-11-06 22:51:29,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2023-11-06 22:51:29,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:29,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2023-11-06 22:51:29,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 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) [2023-11-06 22:51:29,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:29,963 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:29,965 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 976 transitions. [2023-11-06 22:51:29,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 159 flow [2023-11-06 22:51:29,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:51:29,972 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 115 flow [2023-11-06 22:51:29,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-11-06 22:51:29,979 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2023-11-06 22:51:29,980 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 115 flow [2023-11-06 22:51:29,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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) [2023-11-06 22:51:29,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:29,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:51:29,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:51:29,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:29,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash -604537935, now seen corresponding path program 1 times [2023-11-06 22:51:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141572496] [2023-11-06 22:51:29,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:30,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:30,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:30,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141572496] [2023-11-06 22:51:30,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141572496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:30,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:30,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:30,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59365824] [2023-11-06 22:51:30,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:30,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:30,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-06 22:51:30,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2023-11-06 22:51:30,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:30,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-06 22:51:30,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:31,263 INFO L124 PetriNetUnfolderBase]: 1210/1962 cut-off events. [2023-11-06 22:51:31,263 INFO L125 PetriNetUnfolderBase]: For 354/354 co-relation queries the response was YES. [2023-11-06 22:51:31,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4414 conditions, 1962 events. 1210/1962 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9198 event pairs, 894 based on Foata normal form. 3/1632 useless extension candidates. Maximal degree in co-relation 3748. Up to 1929 conditions per place. [2023-11-06 22:51:31,279 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 36 selfloop transitions, 17 changer transitions 0/54 dead transitions. [2023-11-06 22:51:31,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 54 transitions, 269 flow [2023-11-06 22:51:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:51:31,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 982 transitions. [2023-11-06 22:51:31,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856577645895153 [2023-11-06 22:51:31,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 982 transitions. [2023-11-06 22:51:31,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 982 transitions. [2023-11-06 22:51:31,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:31,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 982 transitions. [2023-11-06 22:51:31,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 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) [2023-11-06 22:51:31,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:31,302 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:31,302 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 115 flow. Second operand 6 states and 982 transitions. [2023-11-06 22:51:31,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 54 transitions, 269 flow [2023-11-06 22:51:31,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 267 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:31,309 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 203 flow [2023-11-06 22:51:31,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-06 22:51:31,316 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2023-11-06 22:51:31,316 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 203 flow [2023-11-06 22:51:31,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2023-11-06 22:51:31,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:31,318 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:51:31,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:51:31,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:31,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash -604028295, now seen corresponding path program 2 times [2023-11-06 22:51:31,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:31,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473375733] [2023-11-06 22:51:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:32,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:32,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473375733] [2023-11-06 22:51:32,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473375733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:32,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:32,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:32,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670788192] [2023-11-06 22:51:32,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:32,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:32,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:32,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:32,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:32,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-06 22:51:32,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2023-11-06 22:51:32,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:32,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-06 22:51:32,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:33,175 INFO L124 PetriNetUnfolderBase]: 1200/1946 cut-off events. [2023-11-06 22:51:33,176 INFO L125 PetriNetUnfolderBase]: For 1184/1184 co-relation queries the response was YES. [2023-11-06 22:51:33,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5009 conditions, 1946 events. 1200/1946 cut-off events. For 1184/1184 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9177 event pairs, 772 based on Foata normal form. 3/1619 useless extension candidates. Maximal degree in co-relation 4199. Up to 1901 conditions per place. [2023-11-06 22:51:33,194 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 38 selfloop transitions, 20 changer transitions 0/59 dead transitions. [2023-11-06 22:51:33,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 363 flow [2023-11-06 22:51:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:33,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:51:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 981 transitions. [2023-11-06 22:51:33,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48516320474777447 [2023-11-06 22:51:33,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 981 transitions. [2023-11-06 22:51:33,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 981 transitions. [2023-11-06 22:51:33,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:33,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 981 transitions. [2023-11-06 22:51:33,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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) [2023-11-06 22:51:33,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:33,214 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:33,215 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 203 flow. Second operand 6 states and 981 transitions. [2023-11-06 22:51:33,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 363 flow [2023-11-06 22:51:33,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 347 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:33,226 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 271 flow [2023-11-06 22:51:33,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2023-11-06 22:51:33,228 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2023-11-06 22:51:33,228 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 271 flow [2023-11-06 22:51:33,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 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) [2023-11-06 22:51:33,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:33,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:33,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:51:33,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:33,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1564713575, now seen corresponding path program 1 times [2023-11-06 22:51:33,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858770386] [2023-11-06 22:51:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:33,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:33,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858770386] [2023-11-06 22:51:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858770386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:33,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:33,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626289935] [2023-11-06 22:51:33,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:33,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:33,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-06 22:51:33,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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) [2023-11-06 22:51:33,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:33,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-06 22:51:33,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:34,439 INFO L124 PetriNetUnfolderBase]: 1192/1934 cut-off events. [2023-11-06 22:51:34,439 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-11-06 22:51:34,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 1934 events. 1192/1934 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9127 event pairs, 863 based on Foata normal form. 0/1608 useless extension candidates. Maximal degree in co-relation 4236. Up to 1906 conditions per place. [2023-11-06 22:51:34,456 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 45 selfloop transitions, 22 changer transitions 0/68 dead transitions. [2023-11-06 22:51:34,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 68 transitions, 503 flow [2023-11-06 22:51:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:51:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:51:34,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2023-11-06 22:51:34,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48417408506429277 [2023-11-06 22:51:34,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 979 transitions. [2023-11-06 22:51:34,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 979 transitions. [2023-11-06 22:51:34,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:34,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 979 transitions. [2023-11-06 22:51:34,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 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) [2023-11-06 22:51:34,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:34,472 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 337.0) internal successors, (2359), 7 states have internal predecessors, (2359), 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) [2023-11-06 22:51:34,472 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 271 flow. Second operand 6 states and 979 transitions. [2023-11-06 22:51:34,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 68 transitions, 503 flow [2023-11-06 22:51:34,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 478 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-06 22:51:34,481 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 396 flow [2023-11-06 22:51:34,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-11-06 22:51:34,483 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 22 predicate places. [2023-11-06 22:51:34,483 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 396 flow [2023-11-06 22:51:34,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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) [2023-11-06 22:51:34,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:34,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:34,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:51:34,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:34,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash -650607529, now seen corresponding path program 1 times [2023-11-06 22:51:34,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761879574] [2023-11-06 22:51:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:35,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:35,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761879574] [2023-11-06 22:51:35,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761879574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:35,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:35,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:51:35,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65543350] [2023-11-06 22:51:35,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:35,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:51:35,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:51:35,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:51:35,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-06 22:51:35,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 396 flow. Second operand has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 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) [2023-11-06 22:51:35,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:35,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-06 22:51:35,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:35,849 INFO L124 PetriNetUnfolderBase]: 1184/1922 cut-off events. [2023-11-06 22:51:35,849 INFO L125 PetriNetUnfolderBase]: For 1207/1207 co-relation queries the response was YES. [2023-11-06 22:51:35,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5211 conditions, 1922 events. 1184/1922 cut-off events. For 1207/1207 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9061 event pairs, 671 based on Foata normal form. 2/1688 useless extension candidates. Maximal degree in co-relation 4394. Up to 1853 conditions per place. [2023-11-06 22:51:35,865 INFO L140 encePairwiseOnDemand]: 329/337 looper letters, 58 selfloop transitions, 18 changer transitions 0/77 dead transitions. [2023-11-06 22:51:35,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 607 flow [2023-11-06 22:51:35,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:51:35,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:51:35,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2023-11-06 22:51:35,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485459940652819 [2023-11-06 22:51:35,870 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2023-11-06 22:51:35,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2023-11-06 22:51:35,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:35,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2023-11-06 22:51:35,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 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) [2023-11-06 22:51:35,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 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) [2023-11-06 22:51:35,880 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 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) [2023-11-06 22:51:35,880 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 396 flow. Second operand 5 states and 818 transitions. [2023-11-06 22:51:35,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 607 flow [2023-11-06 22:51:35,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 77 transitions, 580 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:35,887 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 461 flow [2023-11-06 22:51:35,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=461, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2023-11-06 22:51:35,890 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-11-06 22:51:35,890 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 461 flow [2023-11-06 22:51:35,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 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) [2023-11-06 22:51:35,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:35,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:35,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:51:35,892 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:35,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1261477747, now seen corresponding path program 1 times [2023-11-06 22:51:35,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:35,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373875547] [2023-11-06 22:51:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:35,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:36,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:36,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373875547] [2023-11-06 22:51:36,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373875547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:36,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:36,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:51:36,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709014330] [2023-11-06 22:51:36,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:36,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:51:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:51:36,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:51:36,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-06 22:51:36,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 461 flow. Second operand has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 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) [2023-11-06 22:51:36,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:36,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-06 22:51:36,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:37,668 INFO L124 PetriNetUnfolderBase]: 1176/1910 cut-off events. [2023-11-06 22:51:37,669 INFO L125 PetriNetUnfolderBase]: For 1964/1964 co-relation queries the response was YES. [2023-11-06 22:51:37,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5674 conditions, 1910 events. 1176/1910 cut-off events. For 1964/1964 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9052 event pairs, 811 based on Foata normal form. 2/1678 useless extension candidates. Maximal degree in co-relation 4760. Up to 1862 conditions per place. [2023-11-06 22:51:37,689 INFO L140 encePairwiseOnDemand]: 329/337 looper letters, 62 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2023-11-06 22:51:37,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 717 flow [2023-11-06 22:51:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:51:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:51:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 818 transitions. [2023-11-06 22:51:37,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485459940652819 [2023-11-06 22:51:37,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 818 transitions. [2023-11-06 22:51:37,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 818 transitions. [2023-11-06 22:51:37,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:37,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 818 transitions. [2023-11-06 22:51:37,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 163.6) internal successors, (818), 5 states have internal predecessors, (818), 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) [2023-11-06 22:51:37,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 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) [2023-11-06 22:51:37,706 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 337.0) internal successors, (2022), 6 states have internal predecessors, (2022), 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) [2023-11-06 22:51:37,706 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 461 flow. Second operand 5 states and 818 transitions. [2023-11-06 22:51:37,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 717 flow [2023-11-06 22:51:37,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 84 transitions, 713 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:37,718 INFO L231 Difference]: Finished difference. Result has 70 places, 78 transitions, 571 flow [2023-11-06 22:51:37,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=571, PETRI_PLACES=70, PETRI_TRANSITIONS=78} [2023-11-06 22:51:37,721 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2023-11-06 22:51:37,721 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 78 transitions, 571 flow [2023-11-06 22:51:37,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 155.14285714285714) internal successors, (1086), 7 states have internal predecessors, (1086), 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) [2023-11-06 22:51:37,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:37,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:37,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:51:37,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:37,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1305998894, now seen corresponding path program 1 times [2023-11-06 22:51:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:37,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504563636] [2023-11-06 22:51:37,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:37,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:38,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:38,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504563636] [2023-11-06 22:51:38,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504563636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:38,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:38,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:38,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719169059] [2023-11-06 22:51:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:38,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:38,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:38,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:38,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-06 22:51:38,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 78 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 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) [2023-11-06 22:51:38,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:38,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-06 22:51:38,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:39,226 INFO L124 PetriNetUnfolderBase]: 1584/2598 cut-off events. [2023-11-06 22:51:39,227 INFO L125 PetriNetUnfolderBase]: For 3496/3496 co-relation queries the response was YES. [2023-11-06 22:51:39,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8154 conditions, 2598 events. 1584/2598 cut-off events. For 3496/3496 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13691 event pairs, 233 based on Foata normal form. 40/2316 useless extension candidates. Maximal degree in co-relation 6588. Up to 1283 conditions per place. [2023-11-06 22:51:39,257 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 114 selfloop transitions, 25 changer transitions 0/140 dead transitions. [2023-11-06 22:51:39,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 140 transitions, 1153 flow [2023-11-06 22:51:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:51:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:51:39,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1176 transitions. [2023-11-06 22:51:39,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49851632047477745 [2023-11-06 22:51:39,264 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1176 transitions. [2023-11-06 22:51:39,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1176 transitions. [2023-11-06 22:51:39,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:39,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1176 transitions. [2023-11-06 22:51:39,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 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) [2023-11-06 22:51:39,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:51:39,275 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:51:39,275 INFO L175 Difference]: Start difference. First operand has 70 places, 78 transitions, 571 flow. Second operand 7 states and 1176 transitions. [2023-11-06 22:51:39,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 140 transitions, 1153 flow [2023-11-06 22:51:39,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 140 transitions, 1135 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:39,290 INFO L231 Difference]: Finished difference. Result has 79 places, 93 transitions, 753 flow [2023-11-06 22:51:39,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=753, PETRI_PLACES=79, PETRI_TRANSITIONS=93} [2023-11-06 22:51:39,292 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 41 predicate places. [2023-11-06 22:51:39,292 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 753 flow [2023-11-06 22:51:39,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 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) [2023-11-06 22:51:39,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:39,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:39,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:51:39,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:39,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1306034482, now seen corresponding path program 1 times [2023-11-06 22:51:39,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:39,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289690749] [2023-11-06 22:51:39,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:39,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:40,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:40,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:40,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289690749] [2023-11-06 22:51:40,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289690749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:40,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:40,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:51:40,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687776459] [2023-11-06 22:51:40,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:40,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:40,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:40,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:40,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:41,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:41,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 753 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:41,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:41,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:41,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:42,340 INFO L124 PetriNetUnfolderBase]: 1616/2646 cut-off events. [2023-11-06 22:51:42,341 INFO L125 PetriNetUnfolderBase]: For 6258/6258 co-relation queries the response was YES. [2023-11-06 22:51:42,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10194 conditions, 2646 events. 1616/2646 cut-off events. For 6258/6258 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13928 event pairs, 746 based on Foata normal form. 4/2326 useless extension candidates. Maximal degree in co-relation 7949. Up to 2575 conditions per place. [2023-11-06 22:51:42,375 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 76 selfloop transitions, 47 changer transitions 0/124 dead transitions. [2023-11-06 22:51:42,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 124 transitions, 1228 flow [2023-11-06 22:51:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:51:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:51:42,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1600 transitions. [2023-11-06 22:51:42,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47477744807121663 [2023-11-06 22:51:42,385 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1600 transitions. [2023-11-06 22:51:42,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1600 transitions. [2023-11-06 22:51:42,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:42,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1600 transitions. [2023-11-06 22:51:42,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 160.0) internal successors, (1600), 10 states have internal predecessors, (1600), 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) [2023-11-06 22:51:42,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:42,403 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:42,403 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 753 flow. Second operand 10 states and 1600 transitions. [2023-11-06 22:51:42,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 124 transitions, 1228 flow [2023-11-06 22:51:42,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 124 transitions, 1200 flow, removed 9 selfloop flow, removed 2 redundant places. [2023-11-06 22:51:42,437 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 1082 flow [2023-11-06 22:51:42,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1082, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2023-11-06 22:51:42,440 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2023-11-06 22:51:42,440 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 1082 flow [2023-11-06 22:51:42,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:42,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:42,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:42,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:51:42,442 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:42,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:42,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1306034485, now seen corresponding path program 1 times [2023-11-06 22:51:42,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:42,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659998057] [2023-11-06 22:51:42,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:42,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:43,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:43,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659998057] [2023-11-06 22:51:43,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659998057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:43,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:51:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933623642] [2023-11-06 22:51:43,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:43,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:51:43,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:51:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:51:43,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:43,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 1082 flow. Second operand has 8 states, 8 states have (on average 154.125) internal successors, (1233), 8 states have internal predecessors, (1233), 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) [2023-11-06 22:51:43,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:43,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:43,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:44,678 INFO L124 PetriNetUnfolderBase]: 1640/2680 cut-off events. [2023-11-06 22:51:44,679 INFO L125 PetriNetUnfolderBase]: For 7588/7588 co-relation queries the response was YES. [2023-11-06 22:51:44,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10712 conditions, 2680 events. 1640/2680 cut-off events. For 7588/7588 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14282 event pairs, 776 based on Foata normal form. 2/2358 useless extension candidates. Maximal degree in co-relation 10570. Up to 2605 conditions per place. [2023-11-06 22:51:44,702 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 74 selfloop transitions, 64 changer transitions 0/139 dead transitions. [2023-11-06 22:51:44,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 139 transitions, 1593 flow [2023-11-06 22:51:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:51:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:51:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1596 transitions. [2023-11-06 22:51:44,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47359050445103856 [2023-11-06 22:51:44,710 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1596 transitions. [2023-11-06 22:51:44,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1596 transitions. [2023-11-06 22:51:44,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:44,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1596 transitions. [2023-11-06 22:51:44,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.6) internal successors, (1596), 10 states have internal predecessors, (1596), 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) [2023-11-06 22:51:44,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:44,725 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:44,726 INFO L175 Difference]: Start difference. First operand has 91 places, 115 transitions, 1082 flow. Second operand 10 states and 1596 transitions. [2023-11-06 22:51:44,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 139 transitions, 1593 flow [2023-11-06 22:51:44,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 139 transitions, 1491 flow, removed 15 selfloop flow, removed 4 redundant places. [2023-11-06 22:51:44,750 INFO L231 Difference]: Finished difference. Result has 98 places, 132 transitions, 1359 flow [2023-11-06 22:51:44,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1009, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1359, PETRI_PLACES=98, PETRI_TRANSITIONS=132} [2023-11-06 22:51:44,751 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 60 predicate places. [2023-11-06 22:51:44,751 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 132 transitions, 1359 flow [2023-11-06 22:51:44,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 154.125) internal successors, (1233), 8 states have internal predecessors, (1233), 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) [2023-11-06 22:51:44,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:44,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:44,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:51:44,753 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:44,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:44,754 INFO L85 PathProgramCache]: Analyzing trace with hash -141682011, now seen corresponding path program 2 times [2023-11-06 22:51:44,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:44,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578704999] [2023-11-06 22:51:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:44,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:45,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:45,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578704999] [2023-11-06 22:51:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578704999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:45,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:51:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337665785] [2023-11-06 22:51:45,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:45,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:45,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:45,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:45,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 132 transitions, 1359 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:45,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:45,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:45,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:46,846 INFO L124 PetriNetUnfolderBase]: 1632/2670 cut-off events. [2023-11-06 22:51:46,847 INFO L125 PetriNetUnfolderBase]: For 7966/7966 co-relation queries the response was YES. [2023-11-06 22:51:46,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10949 conditions, 2670 events. 1632/2670 cut-off events. For 7966/7966 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14067 event pairs, 797 based on Foata normal form. 2/2350 useless extension candidates. Maximal degree in co-relation 8829. Up to 2589 conditions per place. [2023-11-06 22:51:46,874 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 82 selfloop transitions, 56 changer transitions 0/139 dead transitions. [2023-11-06 22:51:46,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 139 transitions, 1661 flow [2023-11-06 22:51:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:51:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:51:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1286 transitions. [2023-11-06 22:51:46,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47700296735905046 [2023-11-06 22:51:46,882 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1286 transitions. [2023-11-06 22:51:46,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1286 transitions. [2023-11-06 22:51:46,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:46,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1286 transitions. [2023-11-06 22:51:46,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.75) internal successors, (1286), 8 states have internal predecessors, (1286), 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) [2023-11-06 22:51:46,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 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) [2023-11-06 22:51:46,907 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 337.0) internal successors, (3033), 9 states have internal predecessors, (3033), 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) [2023-11-06 22:51:46,916 INFO L175 Difference]: Start difference. First operand has 98 places, 132 transitions, 1359 flow. Second operand 8 states and 1286 transitions. [2023-11-06 22:51:46,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 139 transitions, 1661 flow [2023-11-06 22:51:46,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 139 transitions, 1579 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-11-06 22:51:46,960 INFO L231 Difference]: Finished difference. Result has 102 places, 132 transitions, 1408 flow [2023-11-06 22:51:46,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1408, PETRI_PLACES=102, PETRI_TRANSITIONS=132} [2023-11-06 22:51:46,963 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 64 predicate places. [2023-11-06 22:51:46,964 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 132 transitions, 1408 flow [2023-11-06 22:51:46,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:46,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:46,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:46,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:51:46,966 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:46,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:46,967 INFO L85 PathProgramCache]: Analyzing trace with hash -485268882, now seen corresponding path program 2 times [2023-11-06 22:51:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151820059] [2023-11-06 22:51:46,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:46,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:47,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:47,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151820059] [2023-11-06 22:51:47,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151820059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:47,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:47,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:47,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46825622] [2023-11-06 22:51:47,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:47,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:47,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:47,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:47,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-06 22:51:47,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 132 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2023-11-06 22:51:47,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:47,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-06 22:51:47,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:48,608 INFO L124 PetriNetUnfolderBase]: 2139/3465 cut-off events. [2023-11-06 22:51:48,609 INFO L125 PetriNetUnfolderBase]: For 10358/10358 co-relation queries the response was YES. [2023-11-06 22:51:48,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13953 conditions, 3465 events. 2139/3465 cut-off events. For 10358/10358 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 19259 event pairs, 182 based on Foata normal form. 40/3112 useless extension candidates. Maximal degree in co-relation 11484. Up to 1505 conditions per place. [2023-11-06 22:51:48,642 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 170 selfloop transitions, 64 changer transitions 0/235 dead transitions. [2023-11-06 22:51:48,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 235 transitions, 2549 flow [2023-11-06 22:51:48,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:51:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:51:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1665 transitions. [2023-11-06 22:51:48,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4940652818991098 [2023-11-06 22:51:48,650 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1665 transitions. [2023-11-06 22:51:48,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1665 transitions. [2023-11-06 22:51:48,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:48,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1665 transitions. [2023-11-06 22:51:48,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 166.5) internal successors, (1665), 10 states have internal predecessors, (1665), 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) [2023-11-06 22:51:48,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:48,664 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:48,665 INFO L175 Difference]: Start difference. First operand has 102 places, 132 transitions, 1408 flow. Second operand 10 states and 1665 transitions. [2023-11-06 22:51:48,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 235 transitions, 2549 flow [2023-11-06 22:51:48,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 235 transitions, 2460 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-06 22:51:48,710 INFO L231 Difference]: Finished difference. Result has 110 places, 181 transitions, 1940 flow [2023-11-06 22:51:48,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1319, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1940, PETRI_PLACES=110, PETRI_TRANSITIONS=181} [2023-11-06 22:51:48,711 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 72 predicate places. [2023-11-06 22:51:48,712 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 181 transitions, 1940 flow [2023-11-06 22:51:48,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2023-11-06 22:51:48,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:48,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:48,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:51:48,713 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:48,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:48,713 INFO L85 PathProgramCache]: Analyzing trace with hash -451068814, now seen corresponding path program 2 times [2023-11-06 22:51:48,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:48,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885177892] [2023-11-06 22:51:48,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:49,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:49,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885177892] [2023-11-06 22:51:49,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885177892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:49,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:49,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:51:49,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739103414] [2023-11-06 22:51:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:49,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:49,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:49,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:49,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 181 transitions, 1940 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:49,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:49,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:49,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:51,039 INFO L124 PetriNetUnfolderBase]: 2159/3495 cut-off events. [2023-11-06 22:51:51,039 INFO L125 PetriNetUnfolderBase]: For 15436/15436 co-relation queries the response was YES. [2023-11-06 22:51:51,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16314 conditions, 3495 events. 2159/3495 cut-off events. For 15436/15436 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 19602 event pairs, 982 based on Foata normal form. 4/3104 useless extension candidates. Maximal degree in co-relation 13525. Up to 3429 conditions per place. [2023-11-06 22:51:51,078 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 137 selfloop transitions, 62 changer transitions 0/200 dead transitions. [2023-11-06 22:51:51,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 200 transitions, 2514 flow [2023-11-06 22:51:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:51:51,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:51:51,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1909 transitions. [2023-11-06 22:51:51,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47205736894164196 [2023-11-06 22:51:51,088 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1909 transitions. [2023-11-06 22:51:51,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1909 transitions. [2023-11-06 22:51:51,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:51,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1909 transitions. [2023-11-06 22:51:51,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 159.08333333333334) internal successors, (1909), 12 states have internal predecessors, (1909), 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) [2023-11-06 22:51:51,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:51:51,106 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:51:51,107 INFO L175 Difference]: Start difference. First operand has 110 places, 181 transitions, 1940 flow. Second operand 12 states and 1909 transitions. [2023-11-06 22:51:51,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 200 transitions, 2514 flow [2023-11-06 22:51:51,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 200 transitions, 2372 flow, removed 70 selfloop flow, removed 1 redundant places. [2023-11-06 22:51:51,241 INFO L231 Difference]: Finished difference. Result has 122 places, 190 transitions, 2081 flow [2023-11-06 22:51:51,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1798, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2081, PETRI_PLACES=122, PETRI_TRANSITIONS=190} [2023-11-06 22:51:51,242 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 84 predicate places. [2023-11-06 22:51:51,242 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 190 transitions, 2081 flow [2023-11-06 22:51:51,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:51,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:51,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:51,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:51:51,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:51,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash -451108771, now seen corresponding path program 1 times [2023-11-06 22:51:51,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:51,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392180691] [2023-11-06 22:51:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:51,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:51,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392180691] [2023-11-06 22:51:51,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392180691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:51,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:51,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:51,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603964906] [2023-11-06 22:51:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:51,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:51,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:51,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:51,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:51,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 337 [2023-11-06 22:51:51,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 190 transitions, 2081 flow. Second operand has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 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) [2023-11-06 22:51:51,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:51,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 337 [2023-11-06 22:51:51,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:52,743 INFO L124 PetriNetUnfolderBase]: 2263/3708 cut-off events. [2023-11-06 22:51:52,744 INFO L125 PetriNetUnfolderBase]: For 16400/16400 co-relation queries the response was YES. [2023-11-06 22:51:52,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16829 conditions, 3708 events. 2263/3708 cut-off events. For 16400/16400 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 21216 event pairs, 324 based on Foata normal form. 96/3437 useless extension candidates. Maximal degree in co-relation 16149. Up to 1869 conditions per place. [2023-11-06 22:51:52,793 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 202 selfloop transitions, 84 changer transitions 0/287 dead transitions. [2023-11-06 22:51:52,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 287 transitions, 3445 flow [2023-11-06 22:51:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:51:52,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:51:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1177 transitions. [2023-11-06 22:51:52,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49894022891055534 [2023-11-06 22:51:52,800 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1177 transitions. [2023-11-06 22:51:52,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1177 transitions. [2023-11-06 22:51:52,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:52,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1177 transitions. [2023-11-06 22:51:52,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 168.14285714285714) internal successors, (1177), 7 states have internal predecessors, (1177), 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) [2023-11-06 22:51:52,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:51:52,811 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:51:52,811 INFO L175 Difference]: Start difference. First operand has 122 places, 190 transitions, 2081 flow. Second operand 7 states and 1177 transitions. [2023-11-06 22:51:52,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 287 transitions, 3445 flow [2023-11-06 22:51:52,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 287 transitions, 3249 flow, removed 37 selfloop flow, removed 8 redundant places. [2023-11-06 22:51:52,950 INFO L231 Difference]: Finished difference. Result has 124 places, 235 transitions, 2643 flow [2023-11-06 22:51:52,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=1900, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2643, PETRI_PLACES=124, PETRI_TRANSITIONS=235} [2023-11-06 22:51:52,952 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 86 predicate places. [2023-11-06 22:51:52,952 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 235 transitions, 2643 flow [2023-11-06 22:51:52,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.5) internal successors, (939), 6 states have internal predecessors, (939), 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) [2023-11-06 22:51:52,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:52,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:52,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:51:52,953 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:52,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:52,954 INFO L85 PathProgramCache]: Analyzing trace with hash -451068812, now seen corresponding path program 1 times [2023-11-06 22:51:52,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:52,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737984888] [2023-11-06 22:51:52,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:52,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:53,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:53,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737984888] [2023-11-06 22:51:53,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737984888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:53,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:53,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:51:53,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563137176] [2023-11-06 22:51:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:53,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:53,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:53,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:53,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:53,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:54,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 235 transitions, 2643 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:54,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:54,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:54,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:54,986 INFO L124 PetriNetUnfolderBase]: 2281/3735 cut-off events. [2023-11-06 22:51:54,986 INFO L125 PetriNetUnfolderBase]: For 21417/21417 co-relation queries the response was YES. [2023-11-06 22:51:55,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19255 conditions, 3735 events. 2281/3735 cut-off events. For 21417/21417 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21545 event pairs, 1036 based on Foata normal form. 6/3374 useless extension candidates. Maximal degree in co-relation 19128. Up to 3679 conditions per place. [2023-11-06 22:51:55,024 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 199 selfloop transitions, 52 changer transitions 0/252 dead transitions. [2023-11-06 22:51:55,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 252 transitions, 3351 flow [2023-11-06 22:51:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:51:55,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:51:55,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1438 transitions. [2023-11-06 22:51:55,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741180349488955 [2023-11-06 22:51:55,031 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1438 transitions. [2023-11-06 22:51:55,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1438 transitions. [2023-11-06 22:51:55,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:55,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1438 transitions. [2023-11-06 22:51:55,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.77777777777777) internal successors, (1438), 9 states have internal predecessors, (1438), 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) [2023-11-06 22:51:55,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:51:55,044 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:51:55,044 INFO L175 Difference]: Start difference. First operand has 124 places, 235 transitions, 2643 flow. Second operand 9 states and 1438 transitions. [2023-11-06 22:51:55,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 252 transitions, 3351 flow [2023-11-06 22:51:55,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 252 transitions, 3288 flow, removed 13 selfloop flow, removed 2 redundant places. [2023-11-06 22:51:55,246 INFO L231 Difference]: Finished difference. Result has 132 places, 246 transitions, 2874 flow [2023-11-06 22:51:55,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2580, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2874, PETRI_PLACES=132, PETRI_TRANSITIONS=246} [2023-11-06 22:51:55,247 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 94 predicate places. [2023-11-06 22:51:55,247 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 246 transitions, 2874 flow [2023-11-06 22:51:55,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:55,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:55,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:55,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:51:55,249 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:55,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -448833095, now seen corresponding path program 1 times [2023-11-06 22:51:55,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:55,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108058808] [2023-11-06 22:51:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:56,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:56,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108058808] [2023-11-06 22:51:56,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108058808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:56,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:56,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:51:56,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367870816] [2023-11-06 22:51:56,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:56,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:51:56,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:56,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:51:56,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:51:56,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:51:56,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 246 transitions, 2874 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:56,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:56,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:51:56,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:57,936 INFO L124 PetriNetUnfolderBase]: 2273/3723 cut-off events. [2023-11-06 22:51:57,936 INFO L125 PetriNetUnfolderBase]: For 22129/22129 co-relation queries the response was YES. [2023-11-06 22:51:57,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19067 conditions, 3723 events. 2273/3723 cut-off events. For 22129/22129 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21478 event pairs, 944 based on Foata normal form. 2/3360 useless extension candidates. Maximal degree in co-relation 18485. Up to 3651 conditions per place. [2023-11-06 22:51:57,960 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 182 selfloop transitions, 73 changer transitions 0/256 dead transitions. [2023-11-06 22:51:57,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 256 transitions, 3459 flow [2023-11-06 22:51:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:51:57,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-06 22:51:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2220 transitions. [2023-11-06 22:51:57,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4705383637134379 [2023-11-06 22:51:57,967 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2220 transitions. [2023-11-06 22:51:57,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2220 transitions. [2023-11-06 22:51:57,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:57,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2220 transitions. [2023-11-06 22:51:57,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.57142857142858) internal successors, (2220), 14 states have internal predecessors, (2220), 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) [2023-11-06 22:51:57,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 337.0) internal successors, (5055), 15 states have internal predecessors, (5055), 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) [2023-11-06 22:51:57,982 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 337.0) internal successors, (5055), 15 states have internal predecessors, (5055), 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) [2023-11-06 22:51:57,982 INFO L175 Difference]: Start difference. First operand has 132 places, 246 transitions, 2874 flow. Second operand 14 states and 2220 transitions. [2023-11-06 22:51:57,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 256 transitions, 3459 flow [2023-11-06 22:51:58,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 256 transitions, 3362 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-11-06 22:51:58,147 INFO L231 Difference]: Finished difference. Result has 143 places, 247 transitions, 2976 flow [2023-11-06 22:51:58,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2777, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2976, PETRI_PLACES=143, PETRI_TRANSITIONS=247} [2023-11-06 22:51:58,148 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 105 predicate places. [2023-11-06 22:51:58,148 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 247 transitions, 2976 flow [2023-11-06 22:51:58,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:51:58,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:58,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:58,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:51:58,149 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:58,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:58,150 INFO L85 PathProgramCache]: Analyzing trace with hash -485273251, now seen corresponding path program 2 times [2023-11-06 22:51:58,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:58,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708881859] [2023-11-06 22:51:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:58,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:51:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:51:58,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:51:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708881859] [2023-11-06 22:51:58,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708881859] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:51:58,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:51:58,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:51:58,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840708970] [2023-11-06 22:51:58,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:51:58,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:51:58,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:51:58,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:51:58,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:51:58,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 337 [2023-11-06 22:51:58,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 247 transitions, 2976 flow. Second operand has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2023-11-06 22:51:58,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:51:58,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 337 [2023-11-06 22:51:58,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:51:59,638 INFO L124 PetriNetUnfolderBase]: 2528/4133 cut-off events. [2023-11-06 22:51:59,638 INFO L125 PetriNetUnfolderBase]: For 26191/26191 co-relation queries the response was YES. [2023-11-06 22:51:59,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21238 conditions, 4133 events. 2528/4133 cut-off events. For 26191/26191 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24090 event pairs, 269 based on Foata normal form. 41/3795 useless extension candidates. Maximal degree in co-relation 21101. Up to 1954 conditions per place. [2023-11-06 22:51:59,668 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 203 selfloop transitions, 139 changer transitions 1/344 dead transitions. [2023-11-06 22:51:59,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 344 transitions, 4436 flow [2023-11-06 22:51:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:51:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:51:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1666 transitions. [2023-11-06 22:51:59,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4943620178041543 [2023-11-06 22:51:59,678 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1666 transitions. [2023-11-06 22:51:59,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1666 transitions. [2023-11-06 22:51:59,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:51:59,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1666 transitions. [2023-11-06 22:51:59,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 166.6) internal successors, (1666), 10 states have internal predecessors, (1666), 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) [2023-11-06 22:51:59,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:59,696 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:51:59,697 INFO L175 Difference]: Start difference. First operand has 143 places, 247 transitions, 2976 flow. Second operand 10 states and 1666 transitions. [2023-11-06 22:51:59,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 344 transitions, 4436 flow [2023-11-06 22:51:59,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 344 transitions, 4270 flow, removed 7 selfloop flow, removed 13 redundant places. [2023-11-06 22:51:59,861 INFO L231 Difference]: Finished difference. Result has 143 places, 295 transitions, 3703 flow [2023-11-06 22:51:59,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=2813, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3703, PETRI_PLACES=143, PETRI_TRANSITIONS=295} [2023-11-06 22:51:59,862 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 105 predicate places. [2023-11-06 22:51:59,862 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 295 transitions, 3703 flow [2023-11-06 22:51:59,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.5) internal successors, (933), 6 states have internal predecessors, (933), 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) [2023-11-06 22:51:59,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:51:59,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:51:59,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:51:59,863 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:51:59,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:51:59,864 INFO L85 PathProgramCache]: Analyzing trace with hash -443470715, now seen corresponding path program 2 times [2023-11-06 22:51:59,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:51:59,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379323958] [2023-11-06 22:51:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:51:59,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:51:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:00,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:00,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379323958] [2023-11-06 22:52:00,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379323958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:00,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:00,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:00,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92713684] [2023-11-06 22:52:00,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:00,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:00,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:00,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:00,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:52:00,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 295 transitions, 3703 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:52:00,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:00,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:52:00,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:02,013 INFO L124 PetriNetUnfolderBase]: 2510/4107 cut-off events. [2023-11-06 22:52:02,013 INFO L125 PetriNetUnfolderBase]: For 33420/33420 co-relation queries the response was YES. [2023-11-06 22:52:02,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23520 conditions, 4107 events. 2510/4107 cut-off events. For 33420/33420 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 24192 event pairs, 1026 based on Foata normal form. 4/3740 useless extension candidates. Maximal degree in co-relation 20254. Up to 4045 conditions per place. [2023-11-06 22:52:02,042 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 252 selfloop transitions, 61 changer transitions 0/314 dead transitions. [2023-11-06 22:52:02,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 314 transitions, 4581 flow [2023-11-06 22:52:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:52:02,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:52:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1912 transitions. [2023-11-06 22:52:02,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47279920870425324 [2023-11-06 22:52:02,048 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1912 transitions. [2023-11-06 22:52:02,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1912 transitions. [2023-11-06 22:52:02,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:02,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1912 transitions. [2023-11-06 22:52:02,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 159.33333333333334) internal successors, (1912), 12 states have internal predecessors, (1912), 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) [2023-11-06 22:52:02,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:52:02,061 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:52:02,061 INFO L175 Difference]: Start difference. First operand has 143 places, 295 transitions, 3703 flow. Second operand 12 states and 1912 transitions. [2023-11-06 22:52:02,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 314 transitions, 4581 flow [2023-11-06 22:52:02,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 314 transitions, 4457 flow, removed 30 selfloop flow, removed 2 redundant places. [2023-11-06 22:52:02,283 INFO L231 Difference]: Finished difference. Result has 154 places, 304 transitions, 3887 flow [2023-11-06 22:52:02,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=3580, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3887, PETRI_PLACES=154, PETRI_TRANSITIONS=304} [2023-11-06 22:52:02,284 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 116 predicate places. [2023-11-06 22:52:02,284 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 304 transitions, 3887 flow [2023-11-06 22:52:02,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:52:02,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:02,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:02,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:52:02,285 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:02,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:02,286 INFO L85 PathProgramCache]: Analyzing trace with hash -443470712, now seen corresponding path program 2 times [2023-11-06 22:52:02,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:02,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596922882] [2023-11-06 22:52:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:02,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:02,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596922882] [2023-11-06 22:52:02,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596922882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:02,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:02,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:02,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656182861] [2023-11-06 22:52:02,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:02,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:02,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:02,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:02,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:03,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:52:03,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 304 transitions, 3887 flow. Second operand has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:52:03,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:03,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:52:03,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:04,732 INFO L124 PetriNetUnfolderBase]: 2502/4095 cut-off events. [2023-11-06 22:52:04,732 INFO L125 PetriNetUnfolderBase]: For 34267/34267 co-relation queries the response was YES. [2023-11-06 22:52:04,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23021 conditions, 4095 events. 2502/4095 cut-off events. For 34267/34267 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24221 event pairs, 1188 based on Foata normal form. 2/3728 useless extension candidates. Maximal degree in co-relation 22879. Up to 4045 conditions per place. [2023-11-06 22:52:04,766 INFO L140 encePairwiseOnDemand]: 325/337 looper letters, 249 selfloop transitions, 60 changer transitions 0/310 dead transitions. [2023-11-06 22:52:04,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 310 transitions, 4526 flow [2023-11-06 22:52:04,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:52:04,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:52:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2062 transitions. [2023-11-06 22:52:04,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4706687970782926 [2023-11-06 22:52:04,771 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2062 transitions. [2023-11-06 22:52:04,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2062 transitions. [2023-11-06 22:52:04,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:04,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2062 transitions. [2023-11-06 22:52:04,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 158.6153846153846) internal successors, (2062), 13 states have internal predecessors, (2062), 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) [2023-11-06 22:52:04,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 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) [2023-11-06 22:52:04,785 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 337.0) internal successors, (4718), 14 states have internal predecessors, (4718), 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) [2023-11-06 22:52:04,785 INFO L175 Difference]: Start difference. First operand has 154 places, 304 transitions, 3887 flow. Second operand 13 states and 2062 transitions. [2023-11-06 22:52:04,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 310 transitions, 4526 flow [2023-11-06 22:52:05,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 310 transitions, 4367 flow, removed 27 selfloop flow, removed 7 redundant places. [2023-11-06 22:52:05,123 INFO L231 Difference]: Finished difference. Result has 161 places, 305 transitions, 3887 flow [2023-11-06 22:52:05,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=3728, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3887, PETRI_PLACES=161, PETRI_TRANSITIONS=305} [2023-11-06 22:52:05,124 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 123 predicate places. [2023-11-06 22:52:05,124 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 305 transitions, 3887 flow [2023-11-06 22:52:05,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.0) internal successors, (1386), 9 states have internal predecessors, (1386), 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) [2023-11-06 22:52:05,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:05,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:05,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:52:05,125 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:05,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash -122288737, now seen corresponding path program 1 times [2023-11-06 22:52:05,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:05,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636361385] [2023-11-06 22:52:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:05,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:05,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:05,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636361385] [2023-11-06 22:52:05,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636361385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:05,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:05,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:52:05,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918899726] [2023-11-06 22:52:05,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:05,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:52:05,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:05,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:52:05,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:52:06,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:06,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 305 transitions, 3887 flow. Second operand has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:06,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:06,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:06,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:07,310 INFO L124 PetriNetUnfolderBase]: 2534/4143 cut-off events. [2023-11-06 22:52:07,310 INFO L125 PetriNetUnfolderBase]: For 36174/36174 co-relation queries the response was YES. [2023-11-06 22:52:07,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23597 conditions, 4143 events. 2534/4143 cut-off events. For 36174/36174 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 24346 event pairs, 999 based on Foata normal form. 4/3776 useless extension candidates. Maximal degree in co-relation 23136. Up to 3986 conditions per place. [2023-11-06 22:52:07,336 INFO L140 encePairwiseOnDemand]: 326/337 looper letters, 269 selfloop transitions, 60 changer transitions 0/330 dead transitions. [2023-11-06 22:52:07,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 330 transitions, 4879 flow [2023-11-06 22:52:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:52:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:52:07,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1128 transitions. [2023-11-06 22:52:07,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4781687155574396 [2023-11-06 22:52:07,339 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1128 transitions. [2023-11-06 22:52:07,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1128 transitions. [2023-11-06 22:52:07,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:07,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1128 transitions. [2023-11-06 22:52:07,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 161.14285714285714) internal successors, (1128), 7 states have internal predecessors, (1128), 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) [2023-11-06 22:52:07,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:52:07,346 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:52:07,346 INFO L175 Difference]: Start difference. First operand has 161 places, 305 transitions, 3887 flow. Second operand 7 states and 1128 transitions. [2023-11-06 22:52:07,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 330 transitions, 4879 flow [2023-11-06 22:52:07,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 330 transitions, 4758 flow, removed 9 selfloop flow, removed 9 redundant places. [2023-11-06 22:52:07,574 INFO L231 Difference]: Finished difference. Result has 161 places, 319 transitions, 4200 flow [2023-11-06 22:52:07,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=3766, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4200, PETRI_PLACES=161, PETRI_TRANSITIONS=319} [2023-11-06 22:52:07,575 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 123 predicate places. [2023-11-06 22:52:07,575 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 319 transitions, 4200 flow [2023-11-06 22:52:07,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:07,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:07,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:07,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:52:07,576 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:07,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:07,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1831511522, now seen corresponding path program 1 times [2023-11-06 22:52:07,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:07,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099438360] [2023-11-06 22:52:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:07,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:08,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:08,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099438360] [2023-11-06 22:52:08,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099438360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:08,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:08,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109482636] [2023-11-06 22:52:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:08,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:08,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:08,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:08,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:08,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 319 transitions, 4200 flow. Second operand has 9 states, 9 states have (on average 153.11111111111111) internal successors, (1378), 9 states have internal predecessors, (1378), 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) [2023-11-06 22:52:08,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:08,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:08,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:09,612 INFO L124 PetriNetUnfolderBase]: 2612/4260 cut-off events. [2023-11-06 22:52:09,612 INFO L125 PetriNetUnfolderBase]: For 41409/41409 co-relation queries the response was YES. [2023-11-06 22:52:09,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24968 conditions, 4260 events. 2612/4260 cut-off events. For 41409/41409 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 24982 event pairs, 922 based on Foata normal form. 6/3893 useless extension candidates. Maximal degree in co-relation 24505. Up to 4076 conditions per place. [2023-11-06 22:52:09,652 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 237 selfloop transitions, 131 changer transitions 0/369 dead transitions. [2023-11-06 22:52:09,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 369 transitions, 5706 flow [2023-11-06 22:52:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:52:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:52:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1592 transitions. [2023-11-06 22:52:09,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47240356083086055 [2023-11-06 22:52:09,657 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1592 transitions. [2023-11-06 22:52:09,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1592 transitions. [2023-11-06 22:52:09,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:09,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1592 transitions. [2023-11-06 22:52:09,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.2) internal successors, (1592), 10 states have internal predecessors, (1592), 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) [2023-11-06 22:52:09,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:52:09,664 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:52:09,664 INFO L175 Difference]: Start difference. First operand has 161 places, 319 transitions, 4200 flow. Second operand 10 states and 1592 transitions. [2023-11-06 22:52:09,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 369 transitions, 5706 flow [2023-11-06 22:52:09,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 369 transitions, 5580 flow, removed 23 selfloop flow, removed 3 redundant places. [2023-11-06 22:52:09,915 INFO L231 Difference]: Finished difference. Result has 170 places, 360 transitions, 5226 flow [2023-11-06 22:52:09,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=4117, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5226, PETRI_PLACES=170, PETRI_TRANSITIONS=360} [2023-11-06 22:52:09,915 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-11-06 22:52:09,916 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 360 transitions, 5226 flow [2023-11-06 22:52:09,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.11111111111111) internal successors, (1378), 9 states have internal predecessors, (1378), 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) [2023-11-06 22:52:09,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:09,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:09,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:52:09,916 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:09,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:09,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1832366192, now seen corresponding path program 2 times [2023-11-06 22:52:09,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:09,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907664507] [2023-11-06 22:52:09,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:09,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:10,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907664507] [2023-11-06 22:52:10,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907664507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:10,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:10,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:10,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130945061] [2023-11-06 22:52:10,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:10,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:10,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:10,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:10,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:11,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:11,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 360 transitions, 5226 flow. Second operand has 9 states, 9 states have (on average 153.11111111111111) internal successors, (1378), 9 states have internal predecessors, (1378), 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) [2023-11-06 22:52:11,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:11,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:11,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:12,333 INFO L124 PetriNetUnfolderBase]: 2572/4192 cut-off events. [2023-11-06 22:52:12,333 INFO L125 PetriNetUnfolderBase]: For 43192/43192 co-relation queries the response was YES. [2023-11-06 22:52:12,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24968 conditions, 4192 events. 2572/4192 cut-off events. For 43192/43192 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 24503 event pairs, 943 based on Foata normal form. 6/3841 useless extension candidates. Maximal degree in co-relation 24330. Up to 3904 conditions per place. [2023-11-06 22:52:12,367 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 266 selfloop transitions, 108 changer transitions 0/375 dead transitions. [2023-11-06 22:52:12,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 375 transitions, 6184 flow [2023-11-06 22:52:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:52:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:52:12,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1434 transitions. [2023-11-06 22:52:12,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47279920870425324 [2023-11-06 22:52:12,370 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1434 transitions. [2023-11-06 22:52:12,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1434 transitions. [2023-11-06 22:52:12,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:12,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1434 transitions. [2023-11-06 22:52:12,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.33333333333334) internal successors, (1434), 9 states have internal predecessors, (1434), 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) [2023-11-06 22:52:12,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:52:12,378 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:52:12,378 INFO L175 Difference]: Start difference. First operand has 170 places, 360 transitions, 5226 flow. Second operand 9 states and 1434 transitions. [2023-11-06 22:52:12,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 375 transitions, 6184 flow [2023-11-06 22:52:12,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 375 transitions, 5947 flow, removed 38 selfloop flow, removed 5 redundant places. [2023-11-06 22:52:12,686 INFO L231 Difference]: Finished difference. Result has 175 places, 368 transitions, 5457 flow [2023-11-06 22:52:12,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=4994, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5457, PETRI_PLACES=175, PETRI_TRANSITIONS=368} [2023-11-06 22:52:12,687 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 137 predicate places. [2023-11-06 22:52:12,687 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 368 transitions, 5457 flow [2023-11-06 22:52:12,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.11111111111111) internal successors, (1378), 9 states have internal predecessors, (1378), 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) [2023-11-06 22:52:12,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:12,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:12,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:52:12,687 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:12,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:12,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1026373845, now seen corresponding path program 2 times [2023-11-06 22:52:12,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:12,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453874203] [2023-11-06 22:52:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:12,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:13,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453874203] [2023-11-06 22:52:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453874203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:52:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609216766] [2023-11-06 22:52:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:13,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:52:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:52:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:52:13,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:13,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 368 transitions, 5457 flow. Second operand has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:13,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:13,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:13,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:15,526 INFO L124 PetriNetUnfolderBase]: 2612/4252 cut-off events. [2023-11-06 22:52:15,526 INFO L125 PetriNetUnfolderBase]: For 46180/46180 co-relation queries the response was YES. [2023-11-06 22:52:15,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25751 conditions, 4252 events. 2612/4252 cut-off events. For 46180/46180 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 24792 event pairs, 958 based on Foata normal form. 2/3897 useless extension candidates. Maximal degree in co-relation 24425. Up to 4101 conditions per place. [2023-11-06 22:52:15,567 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 286 selfloop transitions, 123 changer transitions 0/410 dead transitions. [2023-11-06 22:52:15,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 410 transitions, 7004 flow [2023-11-06 22:52:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:52:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:52:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1747 transitions. [2023-11-06 22:52:15,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47127056919341787 [2023-11-06 22:52:15,571 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1747 transitions. [2023-11-06 22:52:15,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1747 transitions. [2023-11-06 22:52:15,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:15,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1747 transitions. [2023-11-06 22:52:15,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 158.8181818181818) internal successors, (1747), 11 states have internal predecessors, (1747), 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) [2023-11-06 22:52:15,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:52:15,579 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:52:15,579 INFO L175 Difference]: Start difference. First operand has 175 places, 368 transitions, 5457 flow. Second operand 11 states and 1747 transitions. [2023-11-06 22:52:15,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 410 transitions, 7004 flow [2023-11-06 22:52:15,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 410 transitions, 6806 flow, removed 26 selfloop flow, removed 6 redundant places. [2023-11-06 22:52:15,916 INFO L231 Difference]: Finished difference. Result has 183 places, 396 transitions, 6209 flow [2023-11-06 22:52:15,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=5295, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6209, PETRI_PLACES=183, PETRI_TRANSITIONS=396} [2023-11-06 22:52:15,917 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 145 predicate places. [2023-11-06 22:52:15,918 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 396 transitions, 6209 flow [2023-11-06 22:52:15,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:15,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:15,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:15,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:52:15,919 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:15,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash -969002145, now seen corresponding path program 3 times [2023-11-06 22:52:15,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:15,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683068250] [2023-11-06 22:52:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:15,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683068250] [2023-11-06 22:52:16,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683068250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:16,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:16,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:52:16,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033175775] [2023-11-06 22:52:16,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:16,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:52:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:16,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:52:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:52:17,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:17,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 396 transitions, 6209 flow. Second operand has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:17,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:17,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:17,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:18,754 INFO L124 PetriNetUnfolderBase]: 2584/4208 cut-off events. [2023-11-06 22:52:18,754 INFO L125 PetriNetUnfolderBase]: For 45361/45361 co-relation queries the response was YES. [2023-11-06 22:52:18,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25234 conditions, 4208 events. 2584/4208 cut-off events. For 45361/45361 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24524 event pairs, 1138 based on Foata normal form. 4/3863 useless extension candidates. Maximal degree in co-relation 25101. Up to 4067 conditions per place. [2023-11-06 22:52:18,786 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 309 selfloop transitions, 103 changer transitions 0/413 dead transitions. [2023-11-06 22:52:18,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 413 transitions, 7252 flow [2023-11-06 22:52:18,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:52:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:52:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1591 transitions. [2023-11-06 22:52:18,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.472106824925816 [2023-11-06 22:52:18,789 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1591 transitions. [2023-11-06 22:52:18,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1591 transitions. [2023-11-06 22:52:18,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:18,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1591 transitions. [2023-11-06 22:52:18,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 159.1) internal successors, (1591), 10 states have internal predecessors, (1591), 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) [2023-11-06 22:52:18,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:52:18,799 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 337.0) internal successors, (3707), 11 states have internal predecessors, (3707), 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) [2023-11-06 22:52:18,799 INFO L175 Difference]: Start difference. First operand has 183 places, 396 transitions, 6209 flow. Second operand 10 states and 1591 transitions. [2023-11-06 22:52:18,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 413 transitions, 7252 flow [2023-11-06 22:52:19,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 413 transitions, 7132 flow, removed 43 selfloop flow, removed 3 redundant places. [2023-11-06 22:52:19,239 INFO L231 Difference]: Finished difference. Result has 192 places, 403 transitions, 6495 flow [2023-11-06 22:52:19,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=6090, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6495, PETRI_PLACES=192, PETRI_TRANSITIONS=403} [2023-11-06 22:52:19,240 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 154 predicate places. [2023-11-06 22:52:19,240 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 403 transitions, 6495 flow [2023-11-06 22:52:19,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 153.0) internal successors, (1530), 10 states have internal predecessors, (1530), 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) [2023-11-06 22:52:19,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:19,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:19,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:52:19,241 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:19,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:19,241 INFO L85 PathProgramCache]: Analyzing trace with hash 389585092, now seen corresponding path program 1 times [2023-11-06 22:52:19,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:19,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185310012] [2023-11-06 22:52:19,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:19,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:19,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185310012] [2023-11-06 22:52:19,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185310012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:19,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:19,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:52:19,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154151875] [2023-11-06 22:52:19,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:19,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:52:19,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:52:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:52:19,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 337 [2023-11-06 22:52:19,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 403 transitions, 6495 flow. Second operand has 7 states, 7 states have (on average 162.57142857142858) internal successors, (1138), 7 states have internal predecessors, (1138), 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) [2023-11-06 22:52:19,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:19,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 337 [2023-11-06 22:52:19,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:21,374 INFO L124 PetriNetUnfolderBase]: 2438/4070 cut-off events. [2023-11-06 22:52:21,375 INFO L125 PetriNetUnfolderBase]: For 39866/39874 co-relation queries the response was YES. [2023-11-06 22:52:21,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23964 conditions, 4070 events. 2438/4070 cut-off events. For 39866/39874 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 24675 event pairs, 534 based on Foata normal form. 68/3758 useless extension candidates. Maximal degree in co-relation 23423. Up to 2745 conditions per place. [2023-11-06 22:52:21,402 INFO L140 encePairwiseOnDemand]: 328/337 looper letters, 297 selfloop transitions, 83 changer transitions 11/424 dead transitions. [2023-11-06 22:52:21,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 424 transitions, 7123 flow [2023-11-06 22:52:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:52:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:52:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1208 transitions. [2023-11-06 22:52:21,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5120813904196694 [2023-11-06 22:52:21,404 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1208 transitions. [2023-11-06 22:52:21,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1208 transitions. [2023-11-06 22:52:21,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:21,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1208 transitions. [2023-11-06 22:52:21,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 172.57142857142858) internal successors, (1208), 7 states have internal predecessors, (1208), 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) [2023-11-06 22:52:21,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:52:21,409 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 337.0) internal successors, (2696), 8 states have internal predecessors, (2696), 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) [2023-11-06 22:52:21,409 INFO L175 Difference]: Start difference. First operand has 192 places, 403 transitions, 6495 flow. Second operand 7 states and 1208 transitions. [2023-11-06 22:52:21,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 424 transitions, 7123 flow [2023-11-06 22:52:21,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 424 transitions, 6754 flow, removed 28 selfloop flow, removed 18 redundant places. [2023-11-06 22:52:21,717 INFO L231 Difference]: Finished difference. Result has 178 places, 367 transitions, 5465 flow [2023-11-06 22:52:21,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=4843, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5465, PETRI_PLACES=178, PETRI_TRANSITIONS=367} [2023-11-06 22:52:21,718 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 140 predicate places. [2023-11-06 22:52:21,718 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 367 transitions, 5465 flow [2023-11-06 22:52:21,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 162.57142857142858) internal successors, (1138), 7 states have internal predecessors, (1138), 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) [2023-11-06 22:52:21,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:21,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:21,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:52:21,718 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:21,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash -72188897, now seen corresponding path program 1 times [2023-11-06 22:52:21,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:21,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105690002] [2023-11-06 22:52:21,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:22,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105690002] [2023-11-06 22:52:22,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105690002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:22,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:22,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:52:22,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821191998] [2023-11-06 22:52:22,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:22,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:52:22,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:22,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:52:22,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:52:22,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 337 [2023-11-06 22:52:22,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 367 transitions, 5465 flow. Second operand has 7 states, 7 states have (on average 161.57142857142858) internal successors, (1131), 7 states have internal predecessors, (1131), 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) [2023-11-06 22:52:22,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:22,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 337 [2023-11-06 22:52:22,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:24,823 INFO L124 PetriNetUnfolderBase]: 3941/6779 cut-off events. [2023-11-06 22:52:24,823 INFO L125 PetriNetUnfolderBase]: For 70970/70991 co-relation queries the response was YES. [2023-11-06 22:52:24,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41335 conditions, 6779 events. 3941/6779 cut-off events. For 70970/70991 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 47167 event pairs, 509 based on Foata normal form. 3/6127 useless extension candidates. Maximal degree in co-relation 41202. Up to 1894 conditions per place. [2023-11-06 22:52:24,899 INFO L140 encePairwiseOnDemand]: 324/337 looper letters, 394 selfloop transitions, 263 changer transitions 14/704 dead transitions. [2023-11-06 22:52:24,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 704 transitions, 11054 flow [2023-11-06 22:52:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:52:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 22:52:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2584 transitions. [2023-11-06 22:52:24,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5111770524233432 [2023-11-06 22:52:24,905 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2584 transitions. [2023-11-06 22:52:24,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2584 transitions. [2023-11-06 22:52:24,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:24,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2584 transitions. [2023-11-06 22:52:24,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 172.26666666666668) internal successors, (2584), 15 states have internal predecessors, (2584), 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) [2023-11-06 22:52:24,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 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) [2023-11-06 22:52:24,918 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 337.0) internal successors, (5392), 16 states have internal predecessors, (5392), 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) [2023-11-06 22:52:24,919 INFO L175 Difference]: Start difference. First operand has 178 places, 367 transitions, 5465 flow. Second operand 15 states and 2584 transitions. [2023-11-06 22:52:24,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 704 transitions, 11054 flow [2023-11-06 22:52:25,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 704 transitions, 10990 flow, removed 31 selfloop flow, removed 2 redundant places. [2023-11-06 22:52:25,549 INFO L231 Difference]: Finished difference. Result has 198 places, 499 transitions, 8643 flow [2023-11-06 22:52:25,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=5451, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8643, PETRI_PLACES=198, PETRI_TRANSITIONS=499} [2023-11-06 22:52:25,550 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 160 predicate places. [2023-11-06 22:52:25,550 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 499 transitions, 8643 flow [2023-11-06 22:52:25,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 161.57142857142858) internal successors, (1131), 7 states have internal predecessors, (1131), 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) [2023-11-06 22:52:25,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:25,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:25,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:52:25,551 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:25,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:25,552 INFO L85 PathProgramCache]: Analyzing trace with hash -76108846, now seen corresponding path program 1 times [2023-11-06 22:52:25,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:25,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19284112] [2023-11-06 22:52:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:26,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:26,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19284112] [2023-11-06 22:52:26,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19284112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:26,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:26,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:52:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688939891] [2023-11-06 22:52:26,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:26,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:52:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:52:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:52:27,028 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:52:27,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 499 transitions, 8643 flow. Second operand has 10 states, 10 states have (on average 153.1) internal successors, (1531), 10 states have internal predecessors, (1531), 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) [2023-11-06 22:52:27,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:27,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:52:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:30,496 INFO L124 PetriNetUnfolderBase]: 5963/10334 cut-off events. [2023-11-06 22:52:30,497 INFO L125 PetriNetUnfolderBase]: For 173506/173506 co-relation queries the response was YES. [2023-11-06 22:52:30,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68013 conditions, 10334 events. 5963/10334 cut-off events. For 173506/173506 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 77431 event pairs, 1799 based on Foata normal form. 27/9922 useless extension candidates. Maximal degree in co-relation 67872. Up to 6523 conditions per place. [2023-11-06 22:52:30,599 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 642 selfloop transitions, 143 changer transitions 61/847 dead transitions. [2023-11-06 22:52:30,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 847 transitions, 16094 flow [2023-11-06 22:52:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:52:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:52:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2734 transitions. [2023-11-06 22:52:30,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4772211555245244 [2023-11-06 22:52:30,603 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2734 transitions. [2023-11-06 22:52:30,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2734 transitions. [2023-11-06 22:52:30,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:30,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2734 transitions. [2023-11-06 22:52:30,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 160.8235294117647) internal successors, (2734), 17 states have internal predecessors, (2734), 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) [2023-11-06 22:52:30,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:52:30,616 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:52:30,617 INFO L175 Difference]: Start difference. First operand has 198 places, 499 transitions, 8643 flow. Second operand 17 states and 2734 transitions. [2023-11-06 22:52:30,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 847 transitions, 16094 flow [2023-11-06 22:52:32,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 847 transitions, 16000 flow, removed 30 selfloop flow, removed 3 redundant places. [2023-11-06 22:52:32,424 INFO L231 Difference]: Finished difference. Result has 218 places, 587 transitions, 10747 flow [2023-11-06 22:52:32,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=8579, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10747, PETRI_PLACES=218, PETRI_TRANSITIONS=587} [2023-11-06 22:52:32,425 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 180 predicate places. [2023-11-06 22:52:32,425 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 587 transitions, 10747 flow [2023-11-06 22:52:32,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 153.1) internal successors, (1531), 10 states have internal predecessors, (1531), 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) [2023-11-06 22:52:32,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:32,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:32,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:52:32,426 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:32,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 668624896, now seen corresponding path program 1 times [2023-11-06 22:52:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:32,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679872900] [2023-11-06 22:52:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:33,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:33,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679872900] [2023-11-06 22:52:33,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679872900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:33,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:33,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:52:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553383946] [2023-11-06 22:52:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:33,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:52:33,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:33,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:52:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:52:34,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 337 [2023-11-06 22:52:34,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 587 transitions, 10747 flow. Second operand has 11 states, 11 states have (on average 152.0909090909091) internal successors, (1673), 11 states have internal predecessors, (1673), 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) [2023-11-06 22:52:34,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:34,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 337 [2023-11-06 22:52:34,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:39,582 INFO L124 PetriNetUnfolderBase]: 7408/13046 cut-off events. [2023-11-06 22:52:39,582 INFO L125 PetriNetUnfolderBase]: For 238760/238760 co-relation queries the response was YES. [2023-11-06 22:52:39,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87787 conditions, 13046 events. 7408/13046 cut-off events. For 238760/238760 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 103951 event pairs, 1922 based on Foata normal form. 27/12546 useless extension candidates. Maximal degree in co-relation 86356. Up to 6168 conditions per place. [2023-11-06 22:52:39,705 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 591 selfloop transitions, 283 changer transitions 62/937 dead transitions. [2023-11-06 22:52:39,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 937 transitions, 18770 flow [2023-11-06 22:52:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:52:39,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:52:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2732 transitions. [2023-11-06 22:52:39,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4768720544597661 [2023-11-06 22:52:39,711 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2732 transitions. [2023-11-06 22:52:39,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2732 transitions. [2023-11-06 22:52:39,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:39,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2732 transitions. [2023-11-06 22:52:39,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 160.7058823529412) internal successors, (2732), 17 states have internal predecessors, (2732), 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) [2023-11-06 22:52:39,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:52:39,723 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:52:39,724 INFO L175 Difference]: Start difference. First operand has 218 places, 587 transitions, 10747 flow. Second operand 17 states and 2732 transitions. [2023-11-06 22:52:39,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 937 transitions, 18770 flow [2023-11-06 22:52:43,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 937 transitions, 18454 flow, removed 129 selfloop flow, removed 5 redundant places. [2023-11-06 22:52:43,172 INFO L231 Difference]: Finished difference. Result has 236 places, 689 transitions, 13679 flow [2023-11-06 22:52:43,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=10467, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13679, PETRI_PLACES=236, PETRI_TRANSITIONS=689} [2023-11-06 22:52:43,173 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 198 predicate places. [2023-11-06 22:52:43,173 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 689 transitions, 13679 flow [2023-11-06 22:52:43,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 152.0909090909091) internal successors, (1673), 11 states have internal predecessors, (1673), 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) [2023-11-06 22:52:43,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:43,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:43,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-06 22:52:43,174 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:43,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:43,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1859050975, now seen corresponding path program 1 times [2023-11-06 22:52:43,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:43,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714924444] [2023-11-06 22:52:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:43,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:43,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714924444] [2023-11-06 22:52:43,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714924444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:43,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:43,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:43,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312221857] [2023-11-06 22:52:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:43,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:43,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:43,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:44,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:52:44,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 689 transitions, 13679 flow. Second operand has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:52:44,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:44,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:52:44,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:52:49,660 INFO L124 PetriNetUnfolderBase]: 7222/12799 cut-off events. [2023-11-06 22:52:49,660 INFO L125 PetriNetUnfolderBase]: For 263216/263216 co-relation queries the response was YES. [2023-11-06 22:52:49,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88687 conditions, 12799 events. 7222/12799 cut-off events. For 263216/263216 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 101749 event pairs, 1419 based on Foata normal form. 75/12361 useless extension candidates. Maximal degree in co-relation 88526. Up to 6760 conditions per place. [2023-11-06 22:52:49,806 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 467 selfloop transitions, 380 changer transitions 13/861 dead transitions. [2023-11-06 22:52:49,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 861 transitions, 18129 flow [2023-11-06 22:52:49,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:52:49,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:52:49,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1825 transitions. [2023-11-06 22:52:49,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4923118424602104 [2023-11-06 22:52:49,810 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1825 transitions. [2023-11-06 22:52:49,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1825 transitions. [2023-11-06 22:52:49,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:52:49,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1825 transitions. [2023-11-06 22:52:49,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 165.9090909090909) internal successors, (1825), 11 states have internal predecessors, (1825), 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) [2023-11-06 22:52:49,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:52:49,818 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:52:49,818 INFO L175 Difference]: Start difference. First operand has 236 places, 689 transitions, 13679 flow. Second operand 11 states and 1825 transitions. [2023-11-06 22:52:49,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 861 transitions, 18129 flow [2023-11-06 22:52:53,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 861 transitions, 17721 flow, removed 156 selfloop flow, removed 4 redundant places. [2023-11-06 22:52:53,410 INFO L231 Difference]: Finished difference. Result has 247 places, 753 transitions, 15794 flow [2023-11-06 22:52:53,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=13230, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=317, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15794, PETRI_PLACES=247, PETRI_TRANSITIONS=753} [2023-11-06 22:52:53,411 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 209 predicate places. [2023-11-06 22:52:53,411 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 753 transitions, 15794 flow [2023-11-06 22:52:53,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:52:53,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:52:53,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:52:53,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 22:52:53,412 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:52:53,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:52:53,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1757090047, now seen corresponding path program 1 times [2023-11-06 22:52:53,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:52:53,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875438032] [2023-11-06 22:52:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:52:53,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:52:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:52:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:52:53,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:52:53,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875438032] [2023-11-06 22:52:53,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875438032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:52:53,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:52:53,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:52:53,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817873067] [2023-11-06 22:52:53,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:52:53,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:52:53,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:52:53,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:52:53,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:52:54,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:52:54,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 753 transitions, 15794 flow. Second operand has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:52:54,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:52:54,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:52:54,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:53:00,082 INFO L124 PetriNetUnfolderBase]: 7199/12781 cut-off events. [2023-11-06 22:53:00,082 INFO L125 PetriNetUnfolderBase]: For 289971/289971 co-relation queries the response was YES. [2023-11-06 22:53:00,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94149 conditions, 12781 events. 7199/12781 cut-off events. For 289971/289971 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 101530 event pairs, 1776 based on Foata normal form. 80/12346 useless extension candidates. Maximal degree in co-relation 93982. Up to 6698 conditions per place. [2023-11-06 22:53:00,231 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 480 selfloop transitions, 377 changer transitions 8/866 dead transitions. [2023-11-06 22:53:00,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 866 transitions, 19219 flow [2023-11-06 22:53:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:53:00,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:53:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1815 transitions. [2023-11-06 22:53:00,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896142433234421 [2023-11-06 22:53:00,235 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1815 transitions. [2023-11-06 22:53:00,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1815 transitions. [2023-11-06 22:53:00,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:00,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1815 transitions. [2023-11-06 22:53:00,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 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) [2023-11-06 22:53:00,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:53:00,274 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 337.0) internal successors, (4044), 12 states have internal predecessors, (4044), 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) [2023-11-06 22:53:00,274 INFO L175 Difference]: Start difference. First operand has 247 places, 753 transitions, 15794 flow. Second operand 11 states and 1815 transitions. [2023-11-06 22:53:00,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 866 transitions, 19219 flow [2023-11-06 22:53:04,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 866 transitions, 18892 flow, removed 156 selfloop flow, removed 3 redundant places. [2023-11-06 22:53:04,365 INFO L231 Difference]: Finished difference. Result has 258 places, 777 transitions, 17097 flow [2023-11-06 22:53:04,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=15425, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17097, PETRI_PLACES=258, PETRI_TRANSITIONS=777} [2023-11-06 22:53:04,367 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 220 predicate places. [2023-11-06 22:53:04,367 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 777 transitions, 17097 flow [2023-11-06 22:53:04,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:53:04,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:53:04,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:04,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-06 22:53:04,368 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:53:04,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1993456433, now seen corresponding path program 2 times [2023-11-06 22:53:04,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:04,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027412] [2023-11-06 22:53:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:04,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:04,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:04,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027412] [2023-11-06 22:53:04,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027412] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:04,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:04,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:53:04,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491776267] [2023-11-06 22:53:04,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:04,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:53:04,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:04,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:53:04,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:05,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:53:05,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 777 transitions, 17097 flow. Second operand has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:53:05,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:53:05,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:53:05,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:53:11,557 INFO L124 PetriNetUnfolderBase]: 7391/13075 cut-off events. [2023-11-06 22:53:11,558 INFO L125 PetriNetUnfolderBase]: For 322247/322247 co-relation queries the response was YES. [2023-11-06 22:53:11,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100868 conditions, 13075 events. 7391/13075 cut-off events. For 322247/322247 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 104048 event pairs, 1207 based on Foata normal form. 43/12595 useless extension candidates. Maximal degree in co-relation 99414. Up to 6776 conditions per place. [2023-11-06 22:53:11,716 INFO L140 encePairwiseOnDemand]: 321/337 looper letters, 402 selfloop transitions, 503 changer transitions 4/910 dead transitions. [2023-11-06 22:53:11,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 910 transitions, 20893 flow [2023-11-06 22:53:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:53:11,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:53:11,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2772 transitions. [2023-11-06 22:53:11,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48385407575493106 [2023-11-06 22:53:11,722 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2772 transitions. [2023-11-06 22:53:11,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2772 transitions. [2023-11-06 22:53:11,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:11,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2772 transitions. [2023-11-06 22:53:11,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 163.05882352941177) internal successors, (2772), 17 states have internal predecessors, (2772), 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) [2023-11-06 22:53:11,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:53:11,732 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:53:11,732 INFO L175 Difference]: Start difference. First operand has 258 places, 777 transitions, 17097 flow. Second operand 17 states and 2772 transitions. [2023-11-06 22:53:11,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 910 transitions, 20893 flow [2023-11-06 22:53:16,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 910 transitions, 20601 flow, removed 42 selfloop flow, removed 4 redundant places. [2023-11-06 22:53:16,926 INFO L231 Difference]: Finished difference. Result has 276 places, 829 transitions, 19383 flow [2023-11-06 22:53:16,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=16818, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=777, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=451, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=19383, PETRI_PLACES=276, PETRI_TRANSITIONS=829} [2023-11-06 22:53:16,928 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 238 predicate places. [2023-11-06 22:53:16,928 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 829 transitions, 19383 flow [2023-11-06 22:53:16,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:53:16,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:53:16,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:16,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-06 22:53:16,929 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:53:16,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:16,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1990054492, now seen corresponding path program 1 times [2023-11-06 22:53:16,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:16,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128436478] [2023-11-06 22:53:16,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:16,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:17,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128436478] [2023-11-06 22:53:17,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128436478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:17,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:17,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:53:17,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237463418] [2023-11-06 22:53:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:17,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:53:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:53:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:18,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:53:18,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 829 transitions, 19383 flow. Second operand has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:53:18,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:53:18,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:53:18,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:53:24,662 INFO L124 PetriNetUnfolderBase]: 7631/13458 cut-off events. [2023-11-06 22:53:24,663 INFO L125 PetriNetUnfolderBase]: For 373905/373905 co-relation queries the response was YES. [2023-11-06 22:53:24,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109228 conditions, 13458 events. 7631/13458 cut-off events. For 373905/373905 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 107415 event pairs, 1424 based on Foata normal form. 53/12982 useless extension candidates. Maximal degree in co-relation 107742. Up to 7214 conditions per place. [2023-11-06 22:53:24,847 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 488 selfloop transitions, 444 changer transitions 4/937 dead transitions. [2023-11-06 22:53:24,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 937 transitions, 23073 flow [2023-11-06 22:53:24,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:53:24,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:53:24,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1964 transitions. [2023-11-06 22:53:24,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856577645895153 [2023-11-06 22:53:24,850 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1964 transitions. [2023-11-06 22:53:24,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1964 transitions. [2023-11-06 22:53:24,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:24,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1964 transitions. [2023-11-06 22:53:24,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 163.66666666666666) internal successors, (1964), 12 states have internal predecessors, (1964), 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) [2023-11-06 22:53:24,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:53:24,859 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:53:24,859 INFO L175 Difference]: Start difference. First operand has 276 places, 829 transitions, 19383 flow. Second operand 12 states and 1964 transitions. [2023-11-06 22:53:24,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 937 transitions, 23073 flow [2023-11-06 22:53:31,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 937 transitions, 22534 flow, removed 106 selfloop flow, removed 5 redundant places. [2023-11-06 22:53:31,469 INFO L231 Difference]: Finished difference. Result has 285 places, 873 transitions, 20868 flow [2023-11-06 22:53:31,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=18875, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=20868, PETRI_PLACES=285, PETRI_TRANSITIONS=873} [2023-11-06 22:53:31,470 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 247 predicate places. [2023-11-06 22:53:31,471 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 873 transitions, 20868 flow [2023-11-06 22:53:31,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:53:31,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:53:31,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-06 22:53:31,472 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:53:31,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1512768936, now seen corresponding path program 2 times [2023-11-06 22:53:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:31,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027633575] [2023-11-06 22:53:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:31,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:31,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:31,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027633575] [2023-11-06 22:53:31,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027633575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:31,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:31,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:53:31,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356390682] [2023-11-06 22:53:31,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:53:31,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:31,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:53:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:32,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 337 [2023-11-06 22:53:32,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 873 transitions, 20868 flow. Second operand has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:53:32,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:53:32,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 337 [2023-11-06 22:53:32,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:53:38,749 INFO L124 PetriNetUnfolderBase]: 7601/13408 cut-off events. [2023-11-06 22:53:38,749 INFO L125 PetriNetUnfolderBase]: For 404220/404220 co-relation queries the response was YES. [2023-11-06 22:53:38,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111394 conditions, 13408 events. 7601/13408 cut-off events. For 404220/404220 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 106720 event pairs, 1995 based on Foata normal form. 40/12917 useless extension candidates. Maximal degree in co-relation 109880. Up to 8987 conditions per place. [2023-11-06 22:53:38,912 INFO L140 encePairwiseOnDemand]: 323/337 looper letters, 667 selfloop transitions, 269 changer transitions 6/943 dead transitions. [2023-11-06 22:53:38,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 943 transitions, 23970 flow [2023-11-06 22:53:38,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:53:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:53:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1480 transitions. [2023-11-06 22:53:38,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4879657105176393 [2023-11-06 22:53:38,916 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1480 transitions. [2023-11-06 22:53:38,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1480 transitions. [2023-11-06 22:53:38,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:38,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1480 transitions. [2023-11-06 22:53:38,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 164.44444444444446) internal successors, (1480), 9 states have internal predecessors, (1480), 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) [2023-11-06 22:53:38,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:53:38,922 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 337.0) internal successors, (3370), 10 states have internal predecessors, (3370), 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) [2023-11-06 22:53:38,922 INFO L175 Difference]: Start difference. First operand has 285 places, 873 transitions, 20868 flow. Second operand 9 states and 1480 transitions. [2023-11-06 22:53:38,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 943 transitions, 23970 flow [2023-11-06 22:53:46,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 943 transitions, 23465 flow, removed 126 selfloop flow, removed 4 redundant places. [2023-11-06 22:53:46,215 INFO L231 Difference]: Finished difference. Result has 291 places, 880 transitions, 21275 flow [2023-11-06 22:53:46,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=20369, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=262, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21275, PETRI_PLACES=291, PETRI_TRANSITIONS=880} [2023-11-06 22:53:46,216 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 253 predicate places. [2023-11-06 22:53:46,217 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 880 transitions, 21275 flow [2023-11-06 22:53:46,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 154.22222222222223) internal successors, (1388), 9 states have internal predecessors, (1388), 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) [2023-11-06 22:53:46,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:53:46,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:53:46,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-06 22:53:46,217 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:53:46,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1272801036, now seen corresponding path program 3 times [2023-11-06 22:53:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446550827] [2023-11-06 22:53:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:46,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:53:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446550827] [2023-11-06 22:53:46,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446550827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:46,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:46,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:53:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613082154] [2023-11-06 22:53:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:46,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:53:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:53:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:53:47,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:53:47,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 880 transitions, 21275 flow. Second operand has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:53:47,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:53:47,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:53:47,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:53:54,170 INFO L124 PetriNetUnfolderBase]: 7809/13732 cut-off events. [2023-11-06 22:53:54,171 INFO L125 PetriNetUnfolderBase]: For 437757/437757 co-relation queries the response was YES. [2023-11-06 22:53:54,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115371 conditions, 13732 events. 7809/13732 cut-off events. For 437757/437757 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 109007 event pairs, 1388 based on Foata normal form. 48/13233 useless extension candidates. Maximal degree in co-relation 113863. Up to 6890 conditions per place. [2023-11-06 22:53:54,343 INFO L140 encePairwiseOnDemand]: 321/337 looper letters, 426 selfloop transitions, 567 changer transitions 2/996 dead transitions. [2023-11-06 22:53:54,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 996 transitions, 25193 flow [2023-11-06 22:53:54,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:53:54,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:53:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2749 transitions. [2023-11-06 22:53:54,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4798394135102112 [2023-11-06 22:53:54,348 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2749 transitions. [2023-11-06 22:53:54,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2749 transitions. [2023-11-06 22:53:54,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:53:54,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2749 transitions. [2023-11-06 22:53:54,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 161.7058823529412) internal successors, (2749), 17 states have internal predecessors, (2749), 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) [2023-11-06 22:53:54,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:53:54,354 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:53:54,354 INFO L175 Difference]: Start difference. First operand has 291 places, 880 transitions, 21275 flow. Second operand 17 states and 2749 transitions. [2023-11-06 22:53:54,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 996 transitions, 25193 flow [2023-11-06 22:54:01,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 996 transitions, 24716 flow, removed 19 selfloop flow, removed 6 redundant places. [2023-11-06 22:54:01,371 INFO L231 Difference]: Finished difference. Result has 305 places, 926 transitions, 23446 flow [2023-11-06 22:54:01,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=20826, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=880, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=521, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=23446, PETRI_PLACES=305, PETRI_TRANSITIONS=926} [2023-11-06 22:54:01,372 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 267 predicate places. [2023-11-06 22:54:01,372 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 926 transitions, 23446 flow [2023-11-06 22:54:01,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:54:01,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:01,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:01,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-06 22:54:01,372 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:54:01,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1275078607, now seen corresponding path program 2 times [2023-11-06 22:54:01,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:01,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432485810] [2023-11-06 22:54:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:01,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432485810] [2023-11-06 22:54:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432485810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:01,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:01,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:54:01,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573330818] [2023-11-06 22:54:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:01,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:54:01,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:54:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:54:02,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:54:02,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 926 transitions, 23446 flow. Second operand has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:54:02,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:02,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:54:02,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:09,710 INFO L124 PetriNetUnfolderBase]: 7999/14040 cut-off events. [2023-11-06 22:54:09,710 INFO L125 PetriNetUnfolderBase]: For 484741/484741 co-relation queries the response was YES. [2023-11-06 22:54:09,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122507 conditions, 14040 events. 7999/14040 cut-off events. For 484741/484741 co-relation queries the response was YES. Maximal size of possible extension queue 906. Compared 111779 event pairs, 1709 based on Foata normal form. 32/13529 useless extension candidates. Maximal degree in co-relation 120906. Up to 7362 conditions per place. [2023-11-06 22:54:09,911 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 527 selfloop transitions, 486 changer transitions 2/1016 dead transitions. [2023-11-06 22:54:09,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1016 transitions, 26912 flow [2023-11-06 22:54:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:54:09,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:54:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1948 transitions. [2023-11-06 22:54:09,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4817012858555885 [2023-11-06 22:54:09,914 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1948 transitions. [2023-11-06 22:54:09,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1948 transitions. [2023-11-06 22:54:09,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:09,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1948 transitions. [2023-11-06 22:54:09,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 162.33333333333334) internal successors, (1948), 12 states have internal predecessors, (1948), 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) [2023-11-06 22:54:09,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:54:09,920 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 337.0) internal successors, (4381), 13 states have internal predecessors, (4381), 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) [2023-11-06 22:54:09,920 INFO L175 Difference]: Start difference. First operand has 305 places, 926 transitions, 23446 flow. Second operand 12 states and 1948 transitions. [2023-11-06 22:54:09,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1016 transitions, 26912 flow [2023-11-06 22:54:19,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1016 transitions, 25239 flow, removed 151 selfloop flow, removed 9 redundant places. [2023-11-06 22:54:19,115 INFO L231 Difference]: Finished difference. Result has 309 places, 961 transitions, 23571 flow [2023-11-06 22:54:19,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=21824, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=451, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=23571, PETRI_PLACES=309, PETRI_TRANSITIONS=961} [2023-11-06 22:54:19,117 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 271 predicate places. [2023-11-06 22:54:19,117 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 961 transitions, 23571 flow [2023-11-06 22:54:19,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 153.22222222222223) internal successors, (1379), 9 states have internal predecessors, (1379), 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) [2023-11-06 22:54:19,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:54:19,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:19,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-06 22:54:19,118 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:54:19,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash 169579671, now seen corresponding path program 1 times [2023-11-06 22:54:19,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:19,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436677836] [2023-11-06 22:54:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:19,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:54:19,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:54:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:54:19,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436677836] [2023-11-06 22:54:19,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436677836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:19,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:19,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:54:19,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180535196] [2023-11-06 22:54:19,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:19,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:54:19,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:54:19,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:54:19,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:54:20,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 337 [2023-11-06 22:54:20,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 961 transitions, 23571 flow. Second operand has 10 states, 10 states have (on average 153.1) internal successors, (1531), 10 states have internal predecessors, (1531), 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) [2023-11-06 22:54:20,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:54:20,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 337 [2023-11-06 22:54:20,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:54:29,938 INFO L124 PetriNetUnfolderBase]: 9688/17076 cut-off events. [2023-11-06 22:54:29,938 INFO L125 PetriNetUnfolderBase]: For 630647/630647 co-relation queries the response was YES. [2023-11-06 22:54:30,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150716 conditions, 17076 events. 9688/17076 cut-off events. For 630647/630647 co-relation queries the response was YES. Maximal size of possible extension queue 1105. Compared 141415 event pairs, 3540 based on Foata normal form. 26/16422 useless extension candidates. Maximal degree in co-relation 148089. Up to 13555 conditions per place. [2023-11-06 22:54:30,210 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 1091 selfloop transitions, 134 changer transitions 76/1302 dead transitions. [2023-11-06 22:54:30,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1302 transitions, 34631 flow [2023-11-06 22:54:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:54:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:54:30,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2746 transitions. [2023-11-06 22:54:30,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47931576191307385 [2023-11-06 22:54:30,219 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2746 transitions. [2023-11-06 22:54:30,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2746 transitions. [2023-11-06 22:54:30,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:54:30,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2746 transitions. [2023-11-06 22:54:30,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 161.52941176470588) internal successors, (2746), 17 states have internal predecessors, (2746), 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) [2023-11-06 22:54:30,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:54:30,232 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 337.0) internal successors, (6066), 18 states have internal predecessors, (6066), 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) [2023-11-06 22:54:30,232 INFO L175 Difference]: Start difference. First operand has 309 places, 961 transitions, 23571 flow. Second operand 17 states and 2746 transitions. [2023-11-06 22:54:30,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 1302 transitions, 34631 flow [2023-11-06 22:54:46,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1302 transitions, 33708 flow, removed 69 selfloop flow, removed 7 redundant places.