./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-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_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/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_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/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_19e79b9a-fcb5-4c7a-a771-8f2472291b66/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 da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:26:55,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:26:55,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:26:55,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:26:55,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:26:55,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:26:55,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:26:55,629 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:26:55,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:26:55,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:26:55,632 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:26:55,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:26:55,633 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:26:55,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:26:55,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:26:55,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:26:55,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:26:55,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:26:55,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:26:55,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:26:55,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:26:55,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:26:55,640 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:26:55,640 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:26:55,641 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:26:55,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:26:55,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:26:55,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:26:55,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:26:55,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:26:55,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:26:55,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:26:55,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:26:55,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:26:55,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:26:55,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:26:55,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:26:55,648 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:26:55,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:26:55,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:26:55,649 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:26:55,650 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_19e79b9a-fcb5-4c7a-a771-8f2472291b66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2023-11-06 22:26:55,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:26:56,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:26:56,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:26:56,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:26:56,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:26:56,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-06 22:26:59,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:26:59,582 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:26:59,584 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2023-11-06 22:26:59,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/data/9e07a3d30/1340b72db5674fa18acf9b363046c56d/FLAG3e98ded22 [2023-11-06 22:26:59,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/data/9e07a3d30/1340b72db5674fa18acf9b363046c56d [2023-11-06 22:26:59,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:26:59,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:26:59,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:26:59,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:26:59,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:26:59,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:59" (1/1) ... [2023-11-06 22:26:59,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44fc959e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:26:59, skipping insertion in model container [2023-11-06 22:26:59,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:26:59" (1/1) ... [2023-11-06 22:26:59,770 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:26:59,965 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:27:00,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:00,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:27:00,702 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:27:00,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:27:00,871 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:00,872 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:00,872 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:27:00,880 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:27:00,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00 WrapperNode [2023-11-06 22:27:00,881 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:27:00,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:00,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:27:00,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:27:00,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:00,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:00,979 INFO L138 Inliner]: procedures = 469, calls = 64, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 162 [2023-11-06 22:27:00,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:27:00,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:27:00,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:27:00,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:27:00,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:00,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:27:01,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:27:01,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:27:01,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:27:01,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (1/1) ... [2023-11-06 22:27:01,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:27:01,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:27:01,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:27:01,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19e79b9a-fcb5-4c7a-a771-8f2472291b66/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:27:01,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:27:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:27:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:27:01,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:27:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-06 22:27:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-06 22:27:01,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:27:01,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:27:01,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:27:01,169 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 22:27:01,558 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:27:01,560 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:27:01,882 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:27:01,977 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:27:01,977 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:27:01,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:01 BoogieIcfgContainer [2023-11-06 22:27:01,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:27:01,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:27:01,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:27:01,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:27:02,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:26:59" (1/3) ... [2023-11-06 22:27:02,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22132cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:02, skipping insertion in model container [2023-11-06 22:27:02,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:27:00" (2/3) ... [2023-11-06 22:27:02,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22132cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:27:02, skipping insertion in model container [2023-11-06 22:27:02,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:27:01" (3/3) ... [2023-11-06 22:27:02,011 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2023-11-06 22:27:02,022 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:27:02,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:27:02,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:27:02,051 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:27:02,123 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:27:02,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 195 transitions, 404 flow [2023-11-06 22:27:02,251 INFO L124 PetriNetUnfolderBase]: 14/253 cut-off events. [2023-11-06 22:27:02,251 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:27:02,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 253 events. 14/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 551 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 128. Up to 4 conditions per place. [2023-11-06 22:27:02,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 191 places, 195 transitions, 404 flow [2023-11-06 22:27:02,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 150 transitions, 309 flow [2023-11-06 22:27:02,269 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:27:02,279 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-06 22:27:02,282 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 150 transitions, 309 flow [2023-11-06 22:27:02,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 150 transitions, 309 flow [2023-11-06 22:27:02,320 INFO L124 PetriNetUnfolderBase]: 4/150 cut-off events. [2023-11-06 22:27:02,321 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:27:02,322 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 207 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 22:27:02,327 INFO L119 LiptonReduction]: Number of co-enabled transitions 5580 [2023-11-06 22:27:12,385 INFO L134 LiptonReduction]: Checked pairs total: 13049 [2023-11-06 22:27:12,386 INFO L136 LiptonReduction]: Total number of compositions: 146 [2023-11-06 22:27:12,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:27:12,411 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;@640ae2ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:27:12,411 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:27:12,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:27:12,418 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-06 22:27:12,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:27:12,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:12,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:27:12,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:12,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash 672318634, now seen corresponding path program 1 times [2023-11-06 22:27:12,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765880474] [2023-11-06 22:27:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:12,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:13,702 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 22:27:13,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:13,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765880474] [2023-11-06 22:27:13,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765880474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:13,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:13,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:27:13,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576927129] [2023-11-06 22:27:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:13,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:27:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:27:13,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:27:14,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 341 [2023-11-06 22:27:14,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 71 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 22:27:14,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:14,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 341 [2023-11-06 22:27:14,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:14,447 INFO L124 PetriNetUnfolderBase]: 523/938 cut-off events. [2023-11-06 22:27:14,448 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-11-06 22:27:14,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 938 events. 523/938 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4351 event pairs, 518 based on Foata normal form. 0/771 useless extension candidates. Maximal degree in co-relation 1764. Up to 870 conditions per place. [2023-11-06 22:27:14,464 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 23 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-11-06 22:27:14,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 137 flow [2023-11-06 22:27:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:27:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2023-11-06 22:27:14,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47409579667644186 [2023-11-06 22:27:14,495 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2023-11-06 22:27:14,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2023-11-06 22:27:14,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:14,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2023-11-06 22:27:14,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 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 22:27:14,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:14,524 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:14,527 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 71 flow. Second operand 6 states and 970 transitions. [2023-11-06 22:27:14,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 137 flow [2023-11-06 22:27:14,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 132 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:14,536 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-11-06 22:27:14,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-11-06 22:27:14,543 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 1 predicate places. [2023-11-06 22:27:14,543 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-11-06 22:27:14,544 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 22:27:14,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:14,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:27:14,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:27:14,545 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 22:27:14,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:14,549 INFO L85 PathProgramCache]: Analyzing trace with hash -633117115, now seen corresponding path program 1 times [2023-11-06 22:27:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:14,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975346636] [2023-11-06 22:27:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:14,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:15,340 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 22:27:15,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:15,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975346636] [2023-11-06 22:27:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975346636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:15,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:15,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398279445] [2023-11-06 22:27:15,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:15,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:15,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:15,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 341 [2023-11-06 22:27:15,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 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 22:27:15,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:15,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 341 [2023-11-06 22:27:15,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:15,887 INFO L124 PetriNetUnfolderBase]: 538/962 cut-off events. [2023-11-06 22:27:15,887 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-11-06 22:27:15,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 962 events. 538/962 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4414 event pairs, 378 based on Foata normal form. 3/839 useless extension candidates. Maximal degree in co-relation 1769. Up to 873 conditions per place. [2023-11-06 22:27:15,896 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 30 selfloop transitions, 17 changer transitions 0/49 dead transitions. [2023-11-06 22:27:15,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 247 flow [2023-11-06 22:27:15,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:15,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:27:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2023-11-06 22:27:15,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47702834799608995 [2023-11-06 22:27:15,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2023-11-06 22:27:15,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2023-11-06 22:27:15,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:15,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2023-11-06 22:27:15,906 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 22:27:15,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:15,913 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:15,914 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 976 transitions. [2023-11-06 22:27:15,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 247 flow [2023-11-06 22:27:15,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 245 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:27:15,917 INFO L231 Difference]: Finished difference. Result has 44 places, 42 transitions, 193 flow [2023-11-06 22:27:15,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=44, PETRI_TRANSITIONS=42} [2023-11-06 22:27:15,918 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2023-11-06 22:27:15,918 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 42 transitions, 193 flow [2023-11-06 22:27:15,919 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 22:27:15,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:15,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:27:15,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:27:15,920 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 22:27:15,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:15,921 INFO L85 PathProgramCache]: Analyzing trace with hash -632955295, now seen corresponding path program 2 times [2023-11-06 22:27:15,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:15,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227705913] [2023-11-06 22:27:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:15,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:16,596 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 22:27:16,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:16,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227705913] [2023-11-06 22:27:16,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227705913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:16,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:16,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329200449] [2023-11-06 22:27:16,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:16,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:16,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:16,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:16,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:16,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 341 [2023-11-06 22:27:16,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 42 transitions, 193 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 22:27:16,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:16,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 341 [2023-11-06 22:27:16,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:17,173 INFO L124 PetriNetUnfolderBase]: 528/946 cut-off events. [2023-11-06 22:27:17,174 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2023-11-06 22:27:17,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 946 events. 528/946 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4402 event pairs, 304 based on Foata normal form. 3/826 useless extension candidates. Maximal degree in co-relation 1986. Up to 845 conditions per place. [2023-11-06 22:27:17,183 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 32 selfloop transitions, 20 changer transitions 0/54 dead transitions. [2023-11-06 22:27:17,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 54 transitions, 341 flow [2023-11-06 22:27:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:27:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2023-11-06 22:27:17,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47653958944281527 [2023-11-06 22:27:17,188 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2023-11-06 22:27:17,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2023-11-06 22:27:17,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:17,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2023-11-06 22:27:17,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 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 22:27:17,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:17,200 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:17,200 INFO L175 Difference]: Start difference. First operand has 44 places, 42 transitions, 193 flow. Second operand 6 states and 975 transitions. [2023-11-06 22:27:17,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 54 transitions, 341 flow [2023-11-06 22:27:17,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 54 transitions, 325 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-11-06 22:27:17,206 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 261 flow [2023-11-06 22:27:17,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2023-11-06 22:27:17,207 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2023-11-06 22:27:17,208 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 261 flow [2023-11-06 22:27:17,209 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 22:27:17,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:17,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:17,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:27:17,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:17,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:17,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1844598041, now seen corresponding path program 1 times [2023-11-06 22:27:17,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:17,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537941026] [2023-11-06 22:27:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:17,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:17,674 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 22:27:17,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:17,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537941026] [2023-11-06 22:27:17,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537941026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:17,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:17,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:27:17,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355085490] [2023-11-06 22:27:17,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:17,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:27:17,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:17,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:27:17,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:27:17,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 341 [2023-11-06 22:27:17,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 261 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 22:27:17,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:17,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 341 [2023-11-06 22:27:17,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:18,204 INFO L124 PetriNetUnfolderBase]: 520/926 cut-off events. [2023-11-06 22:27:18,205 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-11-06 22:27:18,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 926 events. 520/926 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4286 event pairs, 335 based on Foata normal form. 0/807 useless extension candidates. Maximal degree in co-relation 2022. Up to 850 conditions per place. [2023-11-06 22:27:18,215 INFO L140 encePairwiseOnDemand]: 332/341 looper letters, 39 selfloop transitions, 22 changer transitions 0/63 dead transitions. [2023-11-06 22:27:18,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 63 transitions, 481 flow [2023-11-06 22:27:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:27:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:27:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2023-11-06 22:27:18,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4755620723362659 [2023-11-06 22:27:18,221 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2023-11-06 22:27:18,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2023-11-06 22:27:18,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:18,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2023-11-06 22:27:18,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 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 22:27:18,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:18,232 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 341.0) internal successors, (2387), 7 states have internal predecessors, (2387), 0 states have call successors, (0), 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 22:27:18,233 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 261 flow. Second operand 6 states and 973 transitions. [2023-11-06 22:27:18,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 63 transitions, 481 flow [2023-11-06 22:27:18,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 63 transitions, 456 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-06 22:27:18,240 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 386 flow [2023-11-06 22:27:18,241 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2023-11-06 22:27:18,243 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 18 predicate places. [2023-11-06 22:27:18,243 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 386 flow [2023-11-06 22:27:18,244 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 22:27:18,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:18,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:18,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:27:18,245 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 22:27:18,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:18,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1615318867, now seen corresponding path program 1 times [2023-11-06 22:27:18,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:18,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237142582] [2023-11-06 22:27:18,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:18,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:19,131 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 22:27:19,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:19,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237142582] [2023-11-06 22:27:19,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237142582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:19,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:19,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:19,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382155759] [2023-11-06 22:27:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:19,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:19,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:19,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:27:19,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 386 flow. Second operand has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 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 22:27:19,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:19,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:27:19,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:19,930 INFO L124 PetriNetUnfolderBase]: 512/902 cut-off events. [2023-11-06 22:27:19,930 INFO L125 PetriNetUnfolderBase]: For 641/641 co-relation queries the response was YES. [2023-11-06 22:27:19,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 902 events. 512/902 cut-off events. For 641/641 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4047 event pairs, 241 based on Foata normal form. 2/827 useless extension candidates. Maximal degree in co-relation 2096. Up to 797 conditions per place. [2023-11-06 22:27:19,939 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 39 selfloop transitions, 34 changer transitions 0/75 dead transitions. [2023-11-06 22:27:19,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 603 flow [2023-11-06 22:27:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:19,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:27:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1254 transitions. [2023-11-06 22:27:19,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2023-11-06 22:27:19,945 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1254 transitions. [2023-11-06 22:27:19,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1254 transitions. [2023-11-06 22:27:19,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:19,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1254 transitions. [2023-11-06 22:27:19,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 156.75) internal successors, (1254), 8 states have internal predecessors, (1254), 0 states have call successors, (0), 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 22:27:19,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:19,960 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:19,961 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 386 flow. Second operand 8 states and 1254 transitions. [2023-11-06 22:27:19,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 603 flow [2023-11-06 22:27:19,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 576 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-11-06 22:27:19,967 INFO L231 Difference]: Finished difference. Result has 64 places, 68 transitions, 508 flow [2023-11-06 22:27:19,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=508, PETRI_PLACES=64, PETRI_TRANSITIONS=68} [2023-11-06 22:27:19,970 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2023-11-06 22:27:19,971 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 68 transitions, 508 flow [2023-11-06 22:27:19,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 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 22:27:19,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:19,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:19,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:27:19,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:19,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1348048649, now seen corresponding path program 1 times [2023-11-06 22:27:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573531132] [2023-11-06 22:27:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:20,631 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 22:27:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573531132] [2023-11-06 22:27:20,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573531132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:20,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:20,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:20,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292123082] [2023-11-06 22:27:20,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:20,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:20,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:20,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:20,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:27:20,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 68 transitions, 508 flow. Second operand has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 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 22:27:20,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:20,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:27:20,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:21,332 INFO L124 PetriNetUnfolderBase]: 504/867 cut-off events. [2023-11-06 22:27:21,332 INFO L125 PetriNetUnfolderBase]: For 1128/1128 co-relation queries the response was YES. [2023-11-06 22:27:21,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2800 conditions, 867 events. 504/867 cut-off events. For 1128/1128 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3788 event pairs, 262 based on Foata normal form. 2/795 useless extension candidates. Maximal degree in co-relation 2720. Up to 806 conditions per place. [2023-11-06 22:27:21,342 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 45 selfloop transitions, 33 changer transitions 0/80 dead transitions. [2023-11-06 22:27:21,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 80 transitions, 742 flow [2023-11-06 22:27:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:27:21,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1252 transitions. [2023-11-06 22:27:21,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45894428152492667 [2023-11-06 22:27:21,349 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1252 transitions. [2023-11-06 22:27:21,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1252 transitions. [2023-11-06 22:27:21,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:21,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1252 transitions. [2023-11-06 22:27:21,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 156.5) internal successors, (1252), 8 states have internal predecessors, (1252), 0 states have call successors, (0), 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 22:27:21,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:21,360 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:21,361 INFO L175 Difference]: Start difference. First operand has 64 places, 68 transitions, 508 flow. Second operand 8 states and 1252 transitions. [2023-11-06 22:27:21,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 80 transitions, 742 flow [2023-11-06 22:27:21,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 80 transitions, 695 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:21,369 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 602 flow [2023-11-06 22:27:21,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=602, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2023-11-06 22:27:21,370 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2023-11-06 22:27:21,370 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 602 flow [2023-11-06 22:27:21,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 151.14285714285714) internal successors, (1058), 7 states have internal predecessors, (1058), 0 states have call successors, (0), 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 22:27:21,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:21,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:21,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:27:21,372 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:21,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1437958325, now seen corresponding path program 1 times [2023-11-06 22:27:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471017596] [2023-11-06 22:27:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:22,099 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 22:27:22,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:22,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471017596] [2023-11-06 22:27:22,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471017596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:22,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:22,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:22,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78821448] [2023-11-06 22:27:22,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:22,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:22,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:22,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:22,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:22,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:22,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 602 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 22:27:22,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:22,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:22,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:23,151 INFO L124 PetriNetUnfolderBase]: 536/918 cut-off events. [2023-11-06 22:27:23,152 INFO L125 PetriNetUnfolderBase]: For 1551/1551 co-relation queries the response was YES. [2023-11-06 22:27:23,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3286 conditions, 918 events. 536/918 cut-off events. For 1551/1551 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4076 event pairs, 249 based on Foata normal form. 4/846 useless extension candidates. Maximal degree in co-relation 2958. Up to 831 conditions per place. [2023-11-06 22:27:23,163 INFO L140 encePairwiseOnDemand]: 330/341 looper letters, 65 selfloop transitions, 40 changer transitions 0/107 dead transitions. [2023-11-06 22:27:23,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 107 transitions, 1047 flow [2023-11-06 22:27:23,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:27:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1282 transitions. [2023-11-06 22:27:23,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46994134897360706 [2023-11-06 22:27:23,169 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1282 transitions. [2023-11-06 22:27:23,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1282 transitions. [2023-11-06 22:27:23,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:23,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1282 transitions. [2023-11-06 22:27:23,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.25) internal successors, (1282), 8 states have internal predecessors, (1282), 0 states have call successors, (0), 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 22:27:23,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:23,181 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:23,181 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 602 flow. Second operand 8 states and 1282 transitions. [2023-11-06 22:27:23,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 107 transitions, 1047 flow [2023-11-06 22:27:23,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 107 transitions, 984 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-06 22:27:23,191 INFO L231 Difference]: Finished difference. Result has 76 places, 95 transitions, 845 flow [2023-11-06 22:27:23,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=845, PETRI_PLACES=76, PETRI_TRANSITIONS=95} [2023-11-06 22:27:23,192 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 39 predicate places. [2023-11-06 22:27:23,193 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 95 transitions, 845 flow [2023-11-06 22:27:23,194 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 22:27:23,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:23,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:23,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:27:23,194 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 22:27:23,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:23,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1464727049, now seen corresponding path program 1 times [2023-11-06 22:27:23,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:23,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349068312] [2023-11-06 22:27:23,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:23,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:23,783 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 22:27:23,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:23,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349068312] [2023-11-06 22:27:23,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349068312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:23,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:23,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:23,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461039100] [2023-11-06 22:27:23,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:23,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:23,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:23,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:23,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:24,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:24,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 95 transitions, 845 flow. Second operand has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 22:27:24,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:24,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:24,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:24,857 INFO L124 PetriNetUnfolderBase]: 1014/1832 cut-off events. [2023-11-06 22:27:24,857 INFO L125 PetriNetUnfolderBase]: For 3559/3559 co-relation queries the response was YES. [2023-11-06 22:27:24,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6531 conditions, 1832 events. 1014/1832 cut-off events. For 3559/3559 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10395 event pairs, 301 based on Foata normal form. 24/1705 useless extension candidates. Maximal degree in co-relation 4170. Up to 598 conditions per place. [2023-11-06 22:27:24,878 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 135 selfloop transitions, 36 changer transitions 0/173 dead transitions. [2023-11-06 22:27:24,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 173 transitions, 1621 flow [2023-11-06 22:27:24,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:27:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:27:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1423 transitions. [2023-11-06 22:27:24,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4636689475399153 [2023-11-06 22:27:24,886 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1423 transitions. [2023-11-06 22:27:24,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1423 transitions. [2023-11-06 22:27:24,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:24,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1423 transitions. [2023-11-06 22:27:24,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.11111111111111) internal successors, (1423), 9 states have internal predecessors, (1423), 0 states have call successors, (0), 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 22:27:24,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:27:24,899 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:27:24,899 INFO L175 Difference]: Start difference. First operand has 76 places, 95 transitions, 845 flow. Second operand 9 states and 1423 transitions. [2023-11-06 22:27:24,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 173 transitions, 1621 flow [2023-11-06 22:27:24,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 173 transitions, 1576 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:24,923 INFO L231 Difference]: Finished difference. Result has 83 places, 108 transitions, 1009 flow [2023-11-06 22:27:24,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1009, PETRI_PLACES=83, PETRI_TRANSITIONS=108} [2023-11-06 22:27:24,927 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 46 predicate places. [2023-11-06 22:27:24,927 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 108 transitions, 1009 flow [2023-11-06 22:27:24,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 22:27:24,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:24,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:24,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:27:24,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:24,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1464732568, now seen corresponding path program 1 times [2023-11-06 22:27:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:24,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237046813] [2023-11-06 22:27:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:24,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:25,856 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 22:27:25,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:25,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237046813] [2023-11-06 22:27:25,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237046813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:25,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:25,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:25,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705172148] [2023-11-06 22:27:25,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:25,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:25,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:25,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:25,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:26,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:26,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 108 transitions, 1009 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 22:27:26,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:26,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:26,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:27,168 INFO L124 PetriNetUnfolderBase]: 1006/1810 cut-off events. [2023-11-06 22:27:27,168 INFO L125 PetriNetUnfolderBase]: For 5408/5408 co-relation queries the response was YES. [2023-11-06 22:27:27,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7326 conditions, 1810 events. 1006/1810 cut-off events. For 5408/5408 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10215 event pairs, 510 based on Foata normal form. 2/1663 useless extension candidates. Maximal degree in co-relation 4661. Up to 1671 conditions per place. [2023-11-06 22:27:27,190 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 68 selfloop transitions, 47 changer transitions 0/117 dead transitions. [2023-11-06 22:27:27,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 1291 flow [2023-11-06 22:27:27,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:27:27,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:27:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1592 transitions. [2023-11-06 22:27:27,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46686217008797654 [2023-11-06 22:27:27,199 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1592 transitions. [2023-11-06 22:27:27,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1592 transitions. [2023-11-06 22:27:27,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:27,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1592 transitions. [2023-11-06 22:27:27,205 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 22:27:27,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:27:27,214 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:27:27,214 INFO L175 Difference]: Start difference. First operand has 83 places, 108 transitions, 1009 flow. Second operand 10 states and 1592 transitions. [2023-11-06 22:27:27,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 1291 flow [2023-11-06 22:27:27,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 117 transitions, 1262 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:27,237 INFO L231 Difference]: Finished difference. Result has 90 places, 110 transitions, 1115 flow [2023-11-06 22:27:27,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1115, PETRI_PLACES=90, PETRI_TRANSITIONS=110} [2023-11-06 22:27:27,238 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 53 predicate places. [2023-11-06 22:27:27,239 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 110 transitions, 1115 flow [2023-11-06 22:27:27,239 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 22:27:27,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:27,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:27,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:27:27,240 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 22:27:27,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:27,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1160671102, now seen corresponding path program 1 times [2023-11-06 22:27:27,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091090914] [2023-11-06 22:27:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:27,852 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 22:27:27,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:27,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091090914] [2023-11-06 22:27:27,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091090914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:27,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:27,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:27,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358508124] [2023-11-06 22:27:27,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:27,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:27,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:27,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:27,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:28,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:28,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 110 transitions, 1115 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 22:27:28,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:28,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:28,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:28,991 INFO L124 PetriNetUnfolderBase]: 1032/1849 cut-off events. [2023-11-06 22:27:28,991 INFO L125 PetriNetUnfolderBase]: For 5763/5763 co-relation queries the response was YES. [2023-11-06 22:27:29,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7634 conditions, 1849 events. 1032/1849 cut-off events. For 5763/5763 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10395 event pairs, 552 based on Foata normal form. 4/1702 useless extension candidates. Maximal degree in co-relation 5362. Up to 1726 conditions per place. [2023-11-06 22:27:29,016 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 83 selfloop transitions, 45 changer transitions 0/130 dead transitions. [2023-11-06 22:27:29,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 130 transitions, 1574 flow [2023-11-06 22:27:29,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:27:29,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:27:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1432 transitions. [2023-11-06 22:27:29,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46660149885956337 [2023-11-06 22:27:29,023 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1432 transitions. [2023-11-06 22:27:29,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1432 transitions. [2023-11-06 22:27:29,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:29,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1432 transitions. [2023-11-06 22:27:29,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.11111111111111) internal successors, (1432), 9 states have internal predecessors, (1432), 0 states have call successors, (0), 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 22:27:29,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:27:29,054 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:27:29,054 INFO L175 Difference]: Start difference. First operand has 90 places, 110 transitions, 1115 flow. Second operand 9 states and 1432 transitions. [2023-11-06 22:27:29,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 130 transitions, 1574 flow [2023-11-06 22:27:29,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 130 transitions, 1472 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-11-06 22:27:29,077 INFO L231 Difference]: Finished difference. Result has 95 places, 123 transitions, 1312 flow [2023-11-06 22:27:29,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1312, PETRI_PLACES=95, PETRI_TRANSITIONS=123} [2023-11-06 22:27:29,079 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 58 predicate places. [2023-11-06 22:27:29,080 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 123 transitions, 1312 flow [2023-11-06 22:27:29,080 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 22:27:29,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:29,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:29,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:27:29,081 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 22:27:29,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1165139752, now seen corresponding path program 2 times [2023-11-06 22:27:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:29,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96455733] [2023-11-06 22:27:29,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:29,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:29,737 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 22:27:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:29,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96455733] [2023-11-06 22:27:29,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96455733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:29,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:29,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:29,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827825852] [2023-11-06 22:27:29,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:29,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:29,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:30,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:30,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 123 transitions, 1312 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 22:27:30,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:30,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:30,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:31,053 INFO L124 PetriNetUnfolderBase]: 1016/1823 cut-off events. [2023-11-06 22:27:31,054 INFO L125 PetriNetUnfolderBase]: For 6515/6515 co-relation queries the response was YES. [2023-11-06 22:27:31,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7882 conditions, 1823 events. 1016/1823 cut-off events. For 6515/6515 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10394 event pairs, 559 based on Foata normal form. 4/1682 useless extension candidates. Maximal degree in co-relation 7463. Up to 1696 conditions per place. [2023-11-06 22:27:31,086 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 85 selfloop transitions, 55 changer transitions 0/142 dead transitions. [2023-11-06 22:27:31,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 1770 flow [2023-11-06 22:27:31,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:27:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:27:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2058 transitions. [2023-11-06 22:27:31,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46424543198736745 [2023-11-06 22:27:31,096 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2058 transitions. [2023-11-06 22:27:31,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2058 transitions. [2023-11-06 22:27:31,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:31,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2058 transitions. [2023-11-06 22:27:31,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 158.30769230769232) internal successors, (2058), 13 states have internal predecessors, (2058), 0 states have call successors, (0), 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 22:27:31,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:27:31,113 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:27:31,113 INFO L175 Difference]: Start difference. First operand has 95 places, 123 transitions, 1312 flow. Second operand 13 states and 2058 transitions. [2023-11-06 22:27:31,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 1770 flow [2023-11-06 22:27:31,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 142 transitions, 1683 flow, removed 8 selfloop flow, removed 5 redundant places. [2023-11-06 22:27:31,144 INFO L231 Difference]: Finished difference. Result has 106 places, 135 transitions, 1538 flow [2023-11-06 22:27:31,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1229, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1538, PETRI_PLACES=106, PETRI_TRANSITIONS=135} [2023-11-06 22:27:31,145 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 69 predicate places. [2023-11-06 22:27:31,145 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 135 transitions, 1538 flow [2023-11-06 22:27:31,146 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 22:27:31,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:31,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:31,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:27:31,147 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 22:27:31,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:31,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1160349694, now seen corresponding path program 1 times [2023-11-06 22:27:31,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:31,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399717295] [2023-11-06 22:27:31,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:31,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:31,901 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 22:27:31,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399717295] [2023-11-06 22:27:31,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399717295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:31,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:31,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:27:31,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704284839] [2023-11-06 22:27:31,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:31,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:27:31,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:31,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:27:31,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:27:32,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 341 [2023-11-06 22:27:32,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 135 transitions, 1538 flow. Second operand has 8 states, 8 states have (on average 148.125) internal successors, (1185), 8 states have internal predecessors, (1185), 0 states have call successors, (0), 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 22:27:32,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:32,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 341 [2023-11-06 22:27:32,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:33,085 INFO L124 PetriNetUnfolderBase]: 1128/2020 cut-off events. [2023-11-06 22:27:33,086 INFO L125 PetriNetUnfolderBase]: For 9063/9063 co-relation queries the response was YES. [2023-11-06 22:27:33,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9138 conditions, 2020 events. 1128/2020 cut-off events. For 9063/9063 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 11706 event pairs, 546 based on Foata normal form. 24/1901 useless extension candidates. Maximal degree in co-relation 8482. Up to 1736 conditions per place. [2023-11-06 22:27:33,115 INFO L140 encePairwiseOnDemand]: 331/341 looper letters, 97 selfloop transitions, 72 changer transitions 0/171 dead transitions. [2023-11-06 22:27:33,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 171 transitions, 2123 flow [2023-11-06 22:27:33,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:27:33,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:27:33,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1841 transitions. [2023-11-06 22:27:33,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44990224828934505 [2023-11-06 22:27:33,124 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1841 transitions. [2023-11-06 22:27:33,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1841 transitions. [2023-11-06 22:27:33,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:33,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1841 transitions. [2023-11-06 22:27:33,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.41666666666666) internal successors, (1841), 12 states have internal predecessors, (1841), 0 states have call successors, (0), 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 22:27:33,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:33,141 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:33,141 INFO L175 Difference]: Start difference. First operand has 106 places, 135 transitions, 1538 flow. Second operand 12 states and 1841 transitions. [2023-11-06 22:27:33,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 171 transitions, 2123 flow [2023-11-06 22:27:33,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 171 transitions, 2030 flow, removed 19 selfloop flow, removed 6 redundant places. [2023-11-06 22:27:33,176 INFO L231 Difference]: Finished difference. Result has 113 places, 151 transitions, 1764 flow [2023-11-06 22:27:33,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1445, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1764, PETRI_PLACES=113, PETRI_TRANSITIONS=151} [2023-11-06 22:27:33,177 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 76 predicate places. [2023-11-06 22:27:33,178 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 151 transitions, 1764 flow [2023-11-06 22:27:33,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 148.125) internal successors, (1185), 8 states have internal predecessors, (1185), 0 states have call successors, (0), 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 22:27:33,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:33,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:33,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:27:33,179 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 22:27:33,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1165139756, now seen corresponding path program 2 times [2023-11-06 22:27:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:33,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005010807] [2023-11-06 22:27:33,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:33,742 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 22:27:33,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:33,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005010807] [2023-11-06 22:27:33,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005010807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:33,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:33,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:33,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616990870] [2023-11-06 22:27:33,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:33,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:33,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:33,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:33,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:34,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:34,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 151 transitions, 1764 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 22:27:34,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:34,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:34,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:34,888 INFO L124 PetriNetUnfolderBase]: 1120/2010 cut-off events. [2023-11-06 22:27:34,888 INFO L125 PetriNetUnfolderBase]: For 10435/10435 co-relation queries the response was YES. [2023-11-06 22:27:34,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9728 conditions, 2010 events. 1120/2010 cut-off events. For 10435/10435 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 11646 event pairs, 656 based on Foata normal form. 2/1871 useless extension candidates. Maximal degree in co-relation 9638. Up to 1866 conditions per place. [2023-11-06 22:27:34,915 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 101 selfloop transitions, 56 changer transitions 0/159 dead transitions. [2023-11-06 22:27:34,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 159 transitions, 2129 flow [2023-11-06 22:27:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:27:34,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:27:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1904 transitions. [2023-11-06 22:27:34,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46529814271749753 [2023-11-06 22:27:34,922 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1904 transitions. [2023-11-06 22:27:34,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1904 transitions. [2023-11-06 22:27:34,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:34,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1904 transitions. [2023-11-06 22:27:34,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 158.66666666666666) internal successors, (1904), 12 states have internal predecessors, (1904), 0 states have call successors, (0), 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 22:27:34,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:34,941 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:34,941 INFO L175 Difference]: Start difference. First operand has 113 places, 151 transitions, 1764 flow. Second operand 12 states and 1904 transitions. [2023-11-06 22:27:34,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 159 transitions, 2129 flow [2023-11-06 22:27:34,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 159 transitions, 1960 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-11-06 22:27:34,982 INFO L231 Difference]: Finished difference. Result has 118 places, 152 transitions, 1738 flow [2023-11-06 22:27:34,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1599, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1738, PETRI_PLACES=118, PETRI_TRANSITIONS=152} [2023-11-06 22:27:34,984 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 81 predicate places. [2023-11-06 22:27:34,984 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 152 transitions, 1738 flow [2023-11-06 22:27:34,985 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 22:27:34,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:34,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:34,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:27:34,986 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:34,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1157351374, now seen corresponding path program 2 times [2023-11-06 22:27:34,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:34,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516572596] [2023-11-06 22:27:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:35,462 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 22:27:35,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:35,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516572596] [2023-11-06 22:27:35,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516572596] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:35,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:35,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443786894] [2023-11-06 22:27:35,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:35,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:35,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:35,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:35,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:35,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 341 [2023-11-06 22:27:35,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 152 transitions, 1738 flow. Second operand has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 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 22:27:35,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:35,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 341 [2023-11-06 22:27:35,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:36,682 INFO L124 PetriNetUnfolderBase]: 1621/2916 cut-off events. [2023-11-06 22:27:36,682 INFO L125 PetriNetUnfolderBase]: For 15305/15305 co-relation queries the response was YES. [2023-11-06 22:27:36,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13324 conditions, 2916 events. 1621/2916 cut-off events. For 15305/15305 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 18603 event pairs, 268 based on Foata normal form. 64/2783 useless extension candidates. Maximal degree in co-relation 13228. Up to 1431 conditions per place. [2023-11-06 22:27:36,719 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 139 selfloop transitions, 81 changer transitions 2/224 dead transitions. [2023-11-06 22:27:36,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 224 transitions, 2738 flow [2023-11-06 22:27:36,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:36,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:27:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1268 transitions. [2023-11-06 22:27:36,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46480938416422285 [2023-11-06 22:27:36,723 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1268 transitions. [2023-11-06 22:27:36,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1268 transitions. [2023-11-06 22:27:36,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:36,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1268 transitions. [2023-11-06 22:27:36,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 158.5) internal successors, (1268), 8 states have internal predecessors, (1268), 0 states have call successors, (0), 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 22:27:36,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:36,731 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:36,732 INFO L175 Difference]: Start difference. First operand has 118 places, 152 transitions, 1738 flow. Second operand 8 states and 1268 transitions. [2023-11-06 22:27:36,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 224 transitions, 2738 flow [2023-11-06 22:27:36,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 224 transitions, 2533 flow, removed 4 selfloop flow, removed 13 redundant places. [2023-11-06 22:27:36,791 INFO L231 Difference]: Finished difference. Result has 116 places, 182 transitions, 2142 flow [2023-11-06 22:27:36,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=1533, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2142, PETRI_PLACES=116, PETRI_TRANSITIONS=182} [2023-11-06 22:27:36,792 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 79 predicate places. [2023-11-06 22:27:36,792 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 182 transitions, 2142 flow [2023-11-06 22:27:36,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 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 22:27:36,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:36,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:36,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:27:36,793 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 22:27:36,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1160712956, now seen corresponding path program 3 times [2023-11-06 22:27:36,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:36,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548117986] [2023-11-06 22:27:36,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:36,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:37,490 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 22:27:37,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:37,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548117986] [2023-11-06 22:27:37,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548117986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:37,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:37,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:27:37,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544200386] [2023-11-06 22:27:37,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:37,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:27:37,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:27:37,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:27:37,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 341 [2023-11-06 22:27:37,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 182 transitions, 2142 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 22:27:37,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:37,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 341 [2023-11-06 22:27:37,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:39,120 INFO L124 PetriNetUnfolderBase]: 1605/2911 cut-off events. [2023-11-06 22:27:39,121 INFO L125 PetriNetUnfolderBase]: For 21264/21264 co-relation queries the response was YES. [2023-11-06 22:27:39,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15489 conditions, 2911 events. 1605/2911 cut-off events. For 21264/21264 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 18640 event pairs, 774 based on Foata normal form. 2/2716 useless extension candidates. Maximal degree in co-relation 15010. Up to 2690 conditions per place. [2023-11-06 22:27:39,153 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 120 selfloop transitions, 68 changer transitions 0/190 dead transitions. [2023-11-06 22:27:39,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 190 transitions, 2554 flow [2023-11-06 22:27:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:27:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-06 22:27:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2214 transitions. [2023-11-06 22:27:39,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637620444072057 [2023-11-06 22:27:39,159 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2214 transitions. [2023-11-06 22:27:39,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2214 transitions. [2023-11-06 22:27:39,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:39,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2214 transitions. [2023-11-06 22:27:39,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.14285714285714) internal successors, (2214), 14 states have internal predecessors, (2214), 0 states have call successors, (0), 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 22:27:39,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:27:39,175 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:27:39,176 INFO L175 Difference]: Start difference. First operand has 116 places, 182 transitions, 2142 flow. Second operand 14 states and 2214 transitions. [2023-11-06 22:27:39,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 190 transitions, 2554 flow [2023-11-06 22:27:39,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 190 transitions, 2423 flow, removed 46 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:39,296 INFO L231 Difference]: Finished difference. Result has 127 places, 183 transitions, 2169 flow [2023-11-06 22:27:39,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2013, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2169, PETRI_PLACES=127, PETRI_TRANSITIONS=183} [2023-11-06 22:27:39,298 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 90 predicate places. [2023-11-06 22:27:39,298 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 183 transitions, 2169 flow [2023-11-06 22:27:39,299 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 22:27:39,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:39,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:39,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:27:39,299 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 22:27:39,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1157357578, now seen corresponding path program 1 times [2023-11-06 22:27:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511537449] [2023-11-06 22:27:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:39,776 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 22:27:39,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:39,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511537449] [2023-11-06 22:27:39,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511537449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:39,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:39,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:39,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897997312] [2023-11-06 22:27:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:39,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:40,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 341 [2023-11-06 22:27:40,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 183 transitions, 2169 flow. Second operand has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 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 22:27:40,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:40,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 341 [2023-11-06 22:27:40,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:41,012 INFO L124 PetriNetUnfolderBase]: 1744/3145 cut-off events. [2023-11-06 22:27:41,012 INFO L125 PetriNetUnfolderBase]: For 20022/20022 co-relation queries the response was YES. [2023-11-06 22:27:41,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16177 conditions, 3145 events. 1744/3145 cut-off events. For 20022/20022 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 20453 event pairs, 266 based on Foata normal form. 33/2974 useless extension candidates. Maximal degree in co-relation 15671. Up to 1666 conditions per place. [2023-11-06 22:27:41,055 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 142 selfloop transitions, 89 changer transitions 2/235 dead transitions. [2023-11-06 22:27:41,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 235 transitions, 3137 flow [2023-11-06 22:27:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:27:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 22:27:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1259 transitions. [2023-11-06 22:27:41,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46151026392961875 [2023-11-06 22:27:41,060 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1259 transitions. [2023-11-06 22:27:41,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1259 transitions. [2023-11-06 22:27:41,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:41,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1259 transitions. [2023-11-06 22:27:41,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 157.375) internal successors, (1259), 8 states have internal predecessors, (1259), 0 states have call successors, (0), 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 22:27:41,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:41,069 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 341.0) internal successors, (3069), 9 states have internal predecessors, (3069), 0 states have call successors, (0), 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 22:27:41,069 INFO L175 Difference]: Start difference. First operand has 127 places, 183 transitions, 2169 flow. Second operand 8 states and 1259 transitions. [2023-11-06 22:27:41,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 235 transitions, 3137 flow [2023-11-06 22:27:41,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 235 transitions, 3000 flow, removed 9 selfloop flow, removed 10 redundant places. [2023-11-06 22:27:41,131 INFO L231 Difference]: Finished difference. Result has 127 places, 200 transitions, 2491 flow [2023-11-06 22:27:41,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2032, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2491, PETRI_PLACES=127, PETRI_TRANSITIONS=200} [2023-11-06 22:27:41,132 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 90 predicate places. [2023-11-06 22:27:41,132 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 200 transitions, 2491 flow [2023-11-06 22:27:41,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.28571428571428) internal successors, (1038), 7 states have internal predecessors, (1038), 0 states have call successors, (0), 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 22:27:41,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:41,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:41,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:27:41,133 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 22:27:41,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1149636718, now seen corresponding path program 2 times [2023-11-06 22:27:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022569567] [2023-11-06 22:27:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:41,546 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 22:27:41,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:41,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022569567] [2023-11-06 22:27:41,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022569567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:41,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:41,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:27:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99194702] [2023-11-06 22:27:41,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:41,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:27:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:41,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:27:41,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:27:41,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:41,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 200 transitions, 2491 flow. Second operand has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 22:27:41,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:41,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:41,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:42,613 INFO L124 PetriNetUnfolderBase]: 1731/3177 cut-off events. [2023-11-06 22:27:42,613 INFO L125 PetriNetUnfolderBase]: For 27386/27386 co-relation queries the response was YES. [2023-11-06 22:27:42,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17764 conditions, 3177 events. 1731/3177 cut-off events. For 27386/27386 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 21012 event pairs, 383 based on Foata normal form. 53/3051 useless extension candidates. Maximal degree in co-relation 17289. Up to 1335 conditions per place. [2023-11-06 22:27:42,643 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 221 selfloop transitions, 64 changer transitions 1/288 dead transitions. [2023-11-06 22:27:42,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 288 transitions, 3996 flow [2023-11-06 22:27:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:27:42,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:27:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1109 transitions. [2023-11-06 22:27:42,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46459991621281943 [2023-11-06 22:27:42,646 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1109 transitions. [2023-11-06 22:27:42,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1109 transitions. [2023-11-06 22:27:42,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:42,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1109 transitions. [2023-11-06 22:27:42,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 158.42857142857142) internal successors, (1109), 7 states have internal predecessors, (1109), 0 states have call successors, (0), 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 22:27:42,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:27:42,654 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:27:42,654 INFO L175 Difference]: Start difference. First operand has 127 places, 200 transitions, 2491 flow. Second operand 7 states and 1109 transitions. [2023-11-06 22:27:42,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 288 transitions, 3996 flow [2023-11-06 22:27:42,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 288 transitions, 3863 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-11-06 22:27:42,761 INFO L231 Difference]: Finished difference. Result has 132 places, 220 transitions, 2891 flow [2023-11-06 22:27:42,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2396, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2891, PETRI_PLACES=132, PETRI_TRANSITIONS=220} [2023-11-06 22:27:42,762 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 95 predicate places. [2023-11-06 22:27:42,763 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 220 transitions, 2891 flow [2023-11-06 22:27:42,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.28571428571428) internal successors, (1045), 7 states have internal predecessors, (1045), 0 states have call successors, (0), 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 22:27:42,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:42,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:42,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:27:42,764 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 22:27:42,764 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:42,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1837934987, now seen corresponding path program 1 times [2023-11-06 22:27:42,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:42,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315378368] [2023-11-06 22:27:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:42,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:43,629 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 22:27:43,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:43,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315378368] [2023-11-06 22:27:43,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315378368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:43,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:43,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:43,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496183924] [2023-11-06 22:27:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:43,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:43,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:44,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:44,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 220 transitions, 2891 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:44,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:44,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:44,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:45,490 INFO L124 PetriNetUnfolderBase]: 1748/3188 cut-off events. [2023-11-06 22:27:45,490 INFO L125 PetriNetUnfolderBase]: For 29914/29914 co-relation queries the response was YES. [2023-11-06 22:27:45,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18823 conditions, 3188 events. 1748/3188 cut-off events. For 29914/29914 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 20871 event pairs, 671 based on Foata normal form. 4/3012 useless extension candidates. Maximal degree in co-relation 18290. Up to 2874 conditions per place. [2023-11-06 22:27:45,522 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 140 selfloop transitions, 112 changer transitions 0/254 dead transitions. [2023-11-06 22:27:45,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 254 transitions, 3779 flow [2023-11-06 22:27:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:27:45,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:27:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1851 transitions. [2023-11-06 22:27:45,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45234604105571846 [2023-11-06 22:27:45,528 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1851 transitions. [2023-11-06 22:27:45,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1851 transitions. [2023-11-06 22:27:45,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:45,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1851 transitions. [2023-11-06 22:27:45,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 154.25) internal successors, (1851), 12 states have internal predecessors, (1851), 0 states have call successors, (0), 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 22:27:45,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:45,542 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:27:45,543 INFO L175 Difference]: Start difference. First operand has 132 places, 220 transitions, 2891 flow. Second operand 12 states and 1851 transitions. [2023-11-06 22:27:45,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 254 transitions, 3779 flow [2023-11-06 22:27:45,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 254 transitions, 3654 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-11-06 22:27:45,661 INFO L231 Difference]: Finished difference. Result has 143 places, 242 transitions, 3403 flow [2023-11-06 22:27:45,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=2778, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3403, PETRI_PLACES=143, PETRI_TRANSITIONS=242} [2023-11-06 22:27:45,662 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 106 predicate places. [2023-11-06 22:27:45,662 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 242 transitions, 3403 flow [2023-11-06 22:27:45,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:45,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:45,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:45,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:27:45,664 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 22:27:45,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:45,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1837934984, now seen corresponding path program 1 times [2023-11-06 22:27:45,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:45,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661010044] [2023-11-06 22:27:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:45,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:46,720 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 22:27:46,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:46,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661010044] [2023-11-06 22:27:46,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661010044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:46,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:46,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:46,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226917242] [2023-11-06 22:27:46,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:46,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:46,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:46,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:46,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:47,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:47,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 242 transitions, 3403 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:47,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:47,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:47,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:48,562 INFO L124 PetriNetUnfolderBase]: 1778/3241 cut-off events. [2023-11-06 22:27:48,562 INFO L125 PetriNetUnfolderBase]: For 31118/31118 co-relation queries the response was YES. [2023-11-06 22:27:48,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19482 conditions, 3241 events. 1778/3241 cut-off events. For 31118/31118 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 21396 event pairs, 767 based on Foata normal form. 6/3067 useless extension candidates. Maximal degree in co-relation 19120. Up to 2899 conditions per place. [2023-11-06 22:27:48,607 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 180 selfloop transitions, 103 changer transitions 0/285 dead transitions. [2023-11-06 22:27:48,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 285 transitions, 4470 flow [2023-11-06 22:27:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:27:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:27:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2006 transitions. [2023-11-06 22:27:48,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4525152267087751 [2023-11-06 22:27:48,611 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2006 transitions. [2023-11-06 22:27:48,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2006 transitions. [2023-11-06 22:27:48,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:48,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2006 transitions. [2023-11-06 22:27:48,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 154.30769230769232) internal successors, (2006), 13 states have internal predecessors, (2006), 0 states have call successors, (0), 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 22:27:48,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:27:48,622 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:27:48,622 INFO L175 Difference]: Start difference. First operand has 143 places, 242 transitions, 3403 flow. Second operand 13 states and 2006 transitions. [2023-11-06 22:27:48,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 285 transitions, 4470 flow [2023-11-06 22:27:48,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 285 transitions, 4416 flow, removed 22 selfloop flow, removed 2 redundant places. [2023-11-06 22:27:48,786 INFO L231 Difference]: Finished difference. Result has 156 places, 262 transitions, 3947 flow [2023-11-06 22:27:48,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=3353, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3947, PETRI_PLACES=156, PETRI_TRANSITIONS=262} [2023-11-06 22:27:48,787 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 119 predicate places. [2023-11-06 22:27:48,787 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 262 transitions, 3947 flow [2023-11-06 22:27:48,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:48,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:48,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:48,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-06 22:27:48,789 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 22:27:48,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:48,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1638190061, now seen corresponding path program 2 times [2023-11-06 22:27:48,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:48,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861422714] [2023-11-06 22:27:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:48,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:49,524 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 22:27:49,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:49,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861422714] [2023-11-06 22:27:49,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861422714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:49,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:49,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:49,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719919501] [2023-11-06 22:27:49,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:49,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:49,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:49,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:49,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:50,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:50,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 262 transitions, 3947 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:50,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:50,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:50,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:51,241 INFO L124 PetriNetUnfolderBase]: 1818/3301 cut-off events. [2023-11-06 22:27:51,241 INFO L125 PetriNetUnfolderBase]: For 33835/33835 co-relation queries the response was YES. [2023-11-06 22:27:51,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20447 conditions, 3301 events. 1818/3301 cut-off events. For 33835/33835 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 21620 event pairs, 734 based on Foata normal form. 2/3123 useless extension candidates. Maximal degree in co-relation 20338. Up to 2984 conditions per place. [2023-11-06 22:27:51,270 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 173 selfloop transitions, 122 changer transitions 0/297 dead transitions. [2023-11-06 22:27:51,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 297 transitions, 4999 flow [2023-11-06 22:27:51,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:27:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-06 22:27:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2151 transitions. [2023-11-06 22:27:51,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4505655634687893 [2023-11-06 22:27:51,275 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2151 transitions. [2023-11-06 22:27:51,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2151 transitions. [2023-11-06 22:27:51,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:51,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2151 transitions. [2023-11-06 22:27:51,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 153.64285714285714) internal successors, (2151), 14 states have internal predecessors, (2151), 0 states have call successors, (0), 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 22:27:51,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:27:51,286 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:27:51,286 INFO L175 Difference]: Start difference. First operand has 156 places, 262 transitions, 3947 flow. Second operand 14 states and 2151 transitions. [2023-11-06 22:27:51,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 297 transitions, 4999 flow [2023-11-06 22:27:51,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 297 transitions, 4841 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-11-06 22:27:51,434 INFO L231 Difference]: Finished difference. Result has 164 places, 288 transitions, 4572 flow [2023-11-06 22:27:51,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=3816, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4572, PETRI_PLACES=164, PETRI_TRANSITIONS=288} [2023-11-06 22:27:51,435 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 127 predicate places. [2023-11-06 22:27:51,435 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 288 transitions, 4572 flow [2023-11-06 22:27:51,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:51,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:51,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:51,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 22:27:51,436 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 22:27:51,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1520765471, now seen corresponding path program 3 times [2023-11-06 22:27:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:51,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851746070] [2023-11-06 22:27:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:51,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:52,202 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 22:27:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:52,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851746070] [2023-11-06 22:27:52,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851746070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:52,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:52,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307348081] [2023-11-06 22:27:52,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:52,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:52,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:52,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:52,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:52,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 288 transitions, 4572 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:52,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:52,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:52,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:54,138 INFO L124 PetriNetUnfolderBase]: 1830/3319 cut-off events. [2023-11-06 22:27:54,139 INFO L125 PetriNetUnfolderBase]: For 36160/36160 co-relation queries the response was YES. [2023-11-06 22:27:54,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21078 conditions, 3319 events. 1830/3319 cut-off events. For 36160/36160 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 21816 event pairs, 672 based on Foata normal form. 2/3141 useless extension candidates. Maximal degree in co-relation 20171. Up to 2944 conditions per place. [2023-11-06 22:27:54,177 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 145 selfloop transitions, 158 changer transitions 0/305 dead transitions. [2023-11-06 22:27:54,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 305 transitions, 5349 flow [2023-11-06 22:27:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:27:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 22:27:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2455 transitions. [2023-11-06 22:27:54,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4499633431085044 [2023-11-06 22:27:54,183 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2455 transitions. [2023-11-06 22:27:54,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2455 transitions. [2023-11-06 22:27:54,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:54,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2455 transitions. [2023-11-06 22:27:54,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 153.4375) internal successors, (2455), 16 states have internal predecessors, (2455), 0 states have call successors, (0), 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 22:27:54,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:27:54,197 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:27:54,197 INFO L175 Difference]: Start difference. First operand has 164 places, 288 transitions, 4572 flow. Second operand 16 states and 2455 transitions. [2023-11-06 22:27:54,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 305 transitions, 5349 flow [2023-11-06 22:27:54,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 305 transitions, 5289 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-11-06 22:27:54,473 INFO L231 Difference]: Finished difference. Result has 175 places, 296 transitions, 5046 flow [2023-11-06 22:27:54,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=4520, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5046, PETRI_PLACES=175, PETRI_TRANSITIONS=296} [2023-11-06 22:27:54,474 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 138 predicate places. [2023-11-06 22:27:54,474 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 296 transitions, 5046 flow [2023-11-06 22:27:54,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:54,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:54,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:54,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:27:54,475 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:54,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1627119342, now seen corresponding path program 1 times [2023-11-06 22:27:54,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:54,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085569954] [2023-11-06 22:27:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:55,326 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 22:27:55,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:55,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085569954] [2023-11-06 22:27:55,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085569954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:55,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:55,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:55,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950734543] [2023-11-06 22:27:55,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:55,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:55,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:55,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:55,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:56,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:56,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 296 transitions, 5046 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:56,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:56,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:56,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:27:57,772 INFO L124 PetriNetUnfolderBase]: 1822/3305 cut-off events. [2023-11-06 22:27:57,772 INFO L125 PetriNetUnfolderBase]: For 37730/37730 co-relation queries the response was YES. [2023-11-06 22:27:57,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21497 conditions, 3305 events. 1822/3305 cut-off events. For 37730/37730 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 21632 event pairs, 776 based on Foata normal form. 2/3129 useless extension candidates. Maximal degree in co-relation 21135. Up to 2949 conditions per place. [2023-11-06 22:27:57,809 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 185 selfloop transitions, 117 changer transitions 0/304 dead transitions. [2023-11-06 22:27:57,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 304 transitions, 5675 flow [2023-11-06 22:27:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:27:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:27:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1547 transitions. [2023-11-06 22:27:57,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4536656891495601 [2023-11-06 22:27:57,813 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1547 transitions. [2023-11-06 22:27:57,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1547 transitions. [2023-11-06 22:27:57,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:27:57,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1547 transitions. [2023-11-06 22:27:57,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 154.7) internal successors, (1547), 10 states have internal predecessors, (1547), 0 states have call successors, (0), 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 22:27:57,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:27:57,821 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:27:57,821 INFO L175 Difference]: Start difference. First operand has 175 places, 296 transitions, 5046 flow. Second operand 10 states and 1547 transitions. [2023-11-06 22:27:57,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 304 transitions, 5675 flow [2023-11-06 22:27:58,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 304 transitions, 5366 flow, removed 39 selfloop flow, removed 12 redundant places. [2023-11-06 22:27:58,018 INFO L231 Difference]: Finished difference. Result has 173 places, 296 transitions, 5017 flow [2023-11-06 22:27:58,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=4738, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5017, PETRI_PLACES=173, PETRI_TRANSITIONS=296} [2023-11-06 22:27:58,019 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 136 predicate places. [2023-11-06 22:27:58,020 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 296 transitions, 5017 flow [2023-11-06 22:27:58,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:58,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:27:58,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:27:58,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:27:58,021 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:27:58,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:27:58,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1756988518, now seen corresponding path program 2 times [2023-11-06 22:27:58,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:27:58,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341866543] [2023-11-06 22:27:58,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:27:58,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:27:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:27:58,861 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 22:27:58,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:27:58,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341866543] [2023-11-06 22:27:58,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341866543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:27:58,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:27:58,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:27:58,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732057426] [2023-11-06 22:27:58,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:27:58,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:27:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:27:58,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:27:58,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:27:59,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:27:59,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 296 transitions, 5017 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:27:59,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:27:59,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:27:59,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:01,065 INFO L124 PetriNetUnfolderBase]: 1874/3369 cut-off events. [2023-11-06 22:28:01,065 INFO L125 PetriNetUnfolderBase]: For 41875/41875 co-relation queries the response was YES. [2023-11-06 22:28:01,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22347 conditions, 3369 events. 1874/3369 cut-off events. For 41875/41875 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 21954 event pairs, 799 based on Foata normal form. 8/3195 useless extension candidates. Maximal degree in co-relation 21805. Up to 3072 conditions per place. [2023-11-06 22:28:01,102 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 213 selfloop transitions, 114 changer transitions 0/329 dead transitions. [2023-11-06 22:28:01,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 329 transitions, 6137 flow [2023-11-06 22:28:01,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:28:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 22:28:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2455 transitions. [2023-11-06 22:28:01,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4499633431085044 [2023-11-06 22:28:01,112 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2455 transitions. [2023-11-06 22:28:01,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2455 transitions. [2023-11-06 22:28:01,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:01,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2455 transitions. [2023-11-06 22:28:01,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 153.4375) internal successors, (2455), 16 states have internal predecessors, (2455), 0 states have call successors, (0), 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 22:28:01,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:01,124 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:01,125 INFO L175 Difference]: Start difference. First operand has 173 places, 296 transitions, 5017 flow. Second operand 16 states and 2455 transitions. [2023-11-06 22:28:01,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 329 transitions, 6137 flow [2023-11-06 22:28:01,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 329 transitions, 5984 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-11-06 22:28:01,344 INFO L231 Difference]: Finished difference. Result has 186 places, 319 transitions, 5565 flow [2023-11-06 22:28:01,344 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=4864, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=5565, PETRI_PLACES=186, PETRI_TRANSITIONS=319} [2023-11-06 22:28:01,345 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 149 predicate places. [2023-11-06 22:28:01,345 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 319 transitions, 5565 flow [2023-11-06 22:28:01,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:01,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:01,345 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:01,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:28:01,346 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 22:28:01,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1867240952, now seen corresponding path program 2 times [2023-11-06 22:28:01,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:01,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310445598] [2023-11-06 22:28:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:02,274 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 22:28:02,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:02,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310445598] [2023-11-06 22:28:02,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310445598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:02,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:02,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946365383] [2023-11-06 22:28:02,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:02,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:02,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:02,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:02,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:02,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:02,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 319 transitions, 5565 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:02,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:02,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:02,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:04,353 INFO L124 PetriNetUnfolderBase]: 1880/3397 cut-off events. [2023-11-06 22:28:04,353 INFO L125 PetriNetUnfolderBase]: For 44748/44748 co-relation queries the response was YES. [2023-11-06 22:28:04,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23025 conditions, 3397 events. 1880/3397 cut-off events. For 44748/44748 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 22237 event pairs, 783 based on Foata normal form. 4/3223 useless extension candidates. Maximal degree in co-relation 22256. Up to 3045 conditions per place. [2023-11-06 22:28:04,385 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 204 selfloop transitions, 136 changer transitions 0/342 dead transitions. [2023-11-06 22:28:04,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 342 transitions, 6595 flow [2023-11-06 22:28:04,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:28:04,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 22:28:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2452 transitions. [2023-11-06 22:28:04,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44941348973607037 [2023-11-06 22:28:04,390 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2452 transitions. [2023-11-06 22:28:04,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2452 transitions. [2023-11-06 22:28:04,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:04,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2452 transitions. [2023-11-06 22:28:04,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 153.25) internal successors, (2452), 16 states have internal predecessors, (2452), 0 states have call successors, (0), 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 22:28:04,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:04,401 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:04,401 INFO L175 Difference]: Start difference. First operand has 186 places, 319 transitions, 5565 flow. Second operand 16 states and 2452 transitions. [2023-11-06 22:28:04,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 342 transitions, 6595 flow [2023-11-06 22:28:04,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 342 transitions, 6426 flow, removed 27 selfloop flow, removed 8 redundant places. [2023-11-06 22:28:04,599 INFO L231 Difference]: Finished difference. Result has 195 places, 332 transitions, 6012 flow [2023-11-06 22:28:04,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=5396, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6012, PETRI_PLACES=195, PETRI_TRANSITIONS=332} [2023-11-06 22:28:04,600 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 158 predicate places. [2023-11-06 22:28:04,600 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 332 transitions, 6012 flow [2023-11-06 22:28:04,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:04,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:04,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:04,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:28:04,602 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:04,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:04,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1272788668, now seen corresponding path program 3 times [2023-11-06 22:28:04,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:04,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612028521] [2023-11-06 22:28:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:04,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:05,415 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 22:28:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612028521] [2023-11-06 22:28:05,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612028521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:05,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:05,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:05,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093563515] [2023-11-06 22:28:05,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:05,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:05,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:05,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:05,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:05,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:05,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 332 transitions, 6012 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:05,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:05,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:05,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:07,276 INFO L124 PetriNetUnfolderBase]: 1900/3411 cut-off events. [2023-11-06 22:28:07,277 INFO L125 PetriNetUnfolderBase]: For 46330/46330 co-relation queries the response was YES. [2023-11-06 22:28:07,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23474 conditions, 3411 events. 1900/3411 cut-off events. For 46330/46330 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 22127 event pairs, 816 based on Foata normal form. 4/3235 useless extension candidates. Maximal degree in co-relation 23084. Up to 3164 conditions per place. [2023-11-06 22:28:07,315 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 240 selfloop transitions, 103 changer transitions 0/345 dead transitions. [2023-11-06 22:28:07,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 345 transitions, 6904 flow [2023-11-06 22:28:07,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:28:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:28:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1845 transitions. [2023-11-06 22:28:07,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4508797653958944 [2023-11-06 22:28:07,320 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1845 transitions. [2023-11-06 22:28:07,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1845 transitions. [2023-11-06 22:28:07,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:07,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1845 transitions. [2023-11-06 22:28:07,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.75) internal successors, (1845), 12 states have internal predecessors, (1845), 0 states have call successors, (0), 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 22:28:07,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:07,328 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:07,328 INFO L175 Difference]: Start difference. First operand has 195 places, 332 transitions, 6012 flow. Second operand 12 states and 1845 transitions. [2023-11-06 22:28:07,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 345 transitions, 6904 flow [2023-11-06 22:28:07,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 345 transitions, 6650 flow, removed 10 selfloop flow, removed 14 redundant places. [2023-11-06 22:28:07,534 INFO L231 Difference]: Finished difference. Result has 194 places, 339 transitions, 6167 flow [2023-11-06 22:28:07,535 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=5767, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6167, PETRI_PLACES=194, PETRI_TRANSITIONS=339} [2023-11-06 22:28:07,535 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 157 predicate places. [2023-11-06 22:28:07,535 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 339 transitions, 6167 flow [2023-11-06 22:28:07,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:07,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:07,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:07,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-06 22:28:07,536 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:07,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1270841252, now seen corresponding path program 3 times [2023-11-06 22:28:07,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:07,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236704543] [2023-11-06 22:28:07,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:07,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:08,394 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 22:28:08,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:08,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236704543] [2023-11-06 22:28:08,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236704543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:08,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:08,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:08,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028971337] [2023-11-06 22:28:08,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:08,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:08,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:08,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:08,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:09,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:09,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 339 transitions, 6167 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:09,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:09,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:09,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:10,681 INFO L124 PetriNetUnfolderBase]: 1860/3352 cut-off events. [2023-11-06 22:28:10,681 INFO L125 PetriNetUnfolderBase]: For 47304/47304 co-relation queries the response was YES. [2023-11-06 22:28:10,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23072 conditions, 3352 events. 1860/3352 cut-off events. For 47304/47304 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 21767 event pairs, 741 based on Foata normal form. 6/3190 useless extension candidates. Maximal degree in co-relation 22637. Up to 3037 conditions per place. [2023-11-06 22:28:10,726 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 214 selfloop transitions, 149 changer transitions 0/365 dead transitions. [2023-11-06 22:28:10,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 365 transitions, 7240 flow [2023-11-06 22:28:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:28:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-06 22:28:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2909 transitions. [2023-11-06 22:28:10,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4489890415187529 [2023-11-06 22:28:10,731 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2909 transitions. [2023-11-06 22:28:10,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2909 transitions. [2023-11-06 22:28:10,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:10,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2909 transitions. [2023-11-06 22:28:10,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 153.10526315789474) internal successors, (2909), 19 states have internal predecessors, (2909), 0 states have call successors, (0), 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 22:28:10,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:28:10,745 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:28:10,745 INFO L175 Difference]: Start difference. First operand has 194 places, 339 transitions, 6167 flow. Second operand 19 states and 2909 transitions. [2023-11-06 22:28:10,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 365 transitions, 7240 flow [2023-11-06 22:28:10,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 365 transitions, 7006 flow, removed 18 selfloop flow, removed 9 redundant places. [2023-11-06 22:28:11,006 INFO L231 Difference]: Finished difference. Result has 205 places, 352 transitions, 6534 flow [2023-11-06 22:28:11,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=5941, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6534, PETRI_PLACES=205, PETRI_TRANSITIONS=352} [2023-11-06 22:28:11,007 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 168 predicate places. [2023-11-06 22:28:11,007 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 352 transitions, 6534 flow [2023-11-06 22:28:11,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:11,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:11,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:11,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:28:11,011 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 22:28:11,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1622278948, now seen corresponding path program 4 times [2023-11-06 22:28:11,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796244616] [2023-11-06 22:28:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:11,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:11,775 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 22:28:11,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796244616] [2023-11-06 22:28:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796244616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414112280] [2023-11-06 22:28:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:11,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:12,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:12,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 352 transitions, 6534 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:12,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:12,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:12,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:13,668 INFO L124 PetriNetUnfolderBase]: 1836/3319 cut-off events. [2023-11-06 22:28:13,668 INFO L125 PetriNetUnfolderBase]: For 47415/47415 co-relation queries the response was YES. [2023-11-06 22:28:13,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23006 conditions, 3319 events. 1836/3319 cut-off events. For 47415/47415 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 21534 event pairs, 723 based on Foata normal form. 6/3165 useless extension candidates. Maximal degree in co-relation 22537. Up to 3014 conditions per place. [2023-11-06 22:28:13,702 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 238 selfloop transitions, 124 changer transitions 0/364 dead transitions. [2023-11-06 22:28:13,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 364 transitions, 7464 flow [2023-11-06 22:28:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:28:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:28:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1844 transitions. [2023-11-06 22:28:13,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506353861192571 [2023-11-06 22:28:13,706 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1844 transitions. [2023-11-06 22:28:13,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1844 transitions. [2023-11-06 22:28:13,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:13,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1844 transitions. [2023-11-06 22:28:13,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.66666666666666) internal successors, (1844), 12 states have internal predecessors, (1844), 0 states have call successors, (0), 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 22:28:13,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:13,716 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:13,716 INFO L175 Difference]: Start difference. First operand has 205 places, 352 transitions, 6534 flow. Second operand 12 states and 1844 transitions. [2023-11-06 22:28:13,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 364 transitions, 7464 flow [2023-11-06 22:28:13,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 364 transitions, 7184 flow, removed 47 selfloop flow, removed 13 redundant places. [2023-11-06 22:28:13,979 INFO L231 Difference]: Finished difference. Result has 205 places, 359 transitions, 6745 flow [2023-11-06 22:28:13,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=6260, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6745, PETRI_PLACES=205, PETRI_TRANSITIONS=359} [2023-11-06 22:28:13,980 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 168 predicate places. [2023-11-06 22:28:13,980 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 359 transitions, 6745 flow [2023-11-06 22:28:13,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:13,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:13,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:13,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-06 22:28:13,981 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 22:28:13,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1682728951, now seen corresponding path program 1 times [2023-11-06 22:28:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162375423] [2023-11-06 22:28:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:14,723 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 22:28:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:14,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162375423] [2023-11-06 22:28:14,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162375423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:14,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:14,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:14,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788758838] [2023-11-06 22:28:14,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:14,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:14,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:14,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:14,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:15,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:15,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 359 transitions, 6745 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:15,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:15,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:15,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:16,924 INFO L124 PetriNetUnfolderBase]: 1884/3383 cut-off events. [2023-11-06 22:28:16,925 INFO L125 PetriNetUnfolderBase]: For 51066/51066 co-relation queries the response was YES. [2023-11-06 22:28:16,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23866 conditions, 3383 events. 1884/3383 cut-off events. For 51066/51066 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 21836 event pairs, 621 based on Foata normal form. 2/3225 useless extension candidates. Maximal degree in co-relation 23399. Up to 3005 conditions per place. [2023-11-06 22:28:16,963 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 191 selfloop transitions, 201 changer transitions 0/394 dead transitions. [2023-11-06 22:28:16,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 394 transitions, 8118 flow [2023-11-06 22:28:16,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:28:16,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-06 22:28:16,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2448 transitions. [2023-11-06 22:28:16,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44868035190615835 [2023-11-06 22:28:16,967 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2448 transitions. [2023-11-06 22:28:16,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2448 transitions. [2023-11-06 22:28:16,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:16,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2448 transitions. [2023-11-06 22:28:16,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 153.0) internal successors, (2448), 16 states have internal predecessors, (2448), 0 states have call successors, (0), 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 22:28:16,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:16,976 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 341.0) internal successors, (5797), 17 states have internal predecessors, (5797), 0 states have call successors, (0), 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 22:28:16,977 INFO L175 Difference]: Start difference. First operand has 205 places, 359 transitions, 6745 flow. Second operand 16 states and 2448 transitions. [2023-11-06 22:28:16,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 394 transitions, 8118 flow [2023-11-06 22:28:17,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 394 transitions, 7912 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-11-06 22:28:17,217 INFO L231 Difference]: Finished difference. Result has 213 places, 382 transitions, 7534 flow [2023-11-06 22:28:17,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=6575, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7534, PETRI_PLACES=213, PETRI_TRANSITIONS=382} [2023-11-06 22:28:17,218 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 176 predicate places. [2023-11-06 22:28:17,218 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 382 transitions, 7534 flow [2023-11-06 22:28:17,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:17,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:17,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:17,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-06 22:28:17,219 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:17,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:17,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1622278951, now seen corresponding path program 2 times [2023-11-06 22:28:17,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:17,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123381860] [2023-11-06 22:28:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:17,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:17,956 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 22:28:17,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123381860] [2023-11-06 22:28:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123381860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:17,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:17,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:17,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629048692] [2023-11-06 22:28:17,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:17,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:17,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:18,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:18,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 382 transitions, 7534 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:18,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:18,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:18,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:20,387 INFO L124 PetriNetUnfolderBase]: 1860/3340 cut-off events. [2023-11-06 22:28:20,388 INFO L125 PetriNetUnfolderBase]: For 51326/51326 co-relation queries the response was YES. [2023-11-06 22:28:20,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23789 conditions, 3340 events. 1860/3340 cut-off events. For 51326/51326 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 21592 event pairs, 717 based on Foata normal form. 2/3188 useless extension candidates. Maximal degree in co-relation 23313. Up to 2985 conditions per place. [2023-11-06 22:28:20,427 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 214 selfloop transitions, 177 changer transitions 0/393 dead transitions. [2023-11-06 22:28:20,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 393 transitions, 8375 flow [2023-11-06 22:28:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:28:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-06 22:28:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2907 transitions. [2023-11-06 22:28:20,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44868035190615835 [2023-11-06 22:28:20,433 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2907 transitions. [2023-11-06 22:28:20,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2907 transitions. [2023-11-06 22:28:20,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:20,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2907 transitions. [2023-11-06 22:28:20,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 153.0) internal successors, (2907), 19 states have internal predecessors, (2907), 0 states have call successors, (0), 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 22:28:20,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:28:20,446 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:28:20,447 INFO L175 Difference]: Start difference. First operand has 213 places, 382 transitions, 7534 flow. Second operand 19 states and 2907 transitions. [2023-11-06 22:28:20,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 393 transitions, 8375 flow [2023-11-06 22:28:20,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 393 transitions, 8143 flow, removed 30 selfloop flow, removed 7 redundant places. [2023-11-06 22:28:20,751 INFO L231 Difference]: Finished difference. Result has 225 places, 382 transitions, 7701 flow [2023-11-06 22:28:20,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=7302, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7701, PETRI_PLACES=225, PETRI_TRANSITIONS=382} [2023-11-06 22:28:20,752 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 188 predicate places. [2023-11-06 22:28:20,753 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 382 transitions, 7701 flow [2023-11-06 22:28:20,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 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 22:28:20,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:20,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:20,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-06 22:28:20,754 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:20,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:20,754 INFO L85 PathProgramCache]: Analyzing trace with hash 628970883, now seen corresponding path program 1 times [2023-11-06 22:28:20,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:20,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558271233] [2023-11-06 22:28:20,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:20,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:21,317 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 22:28:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:21,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558271233] [2023-11-06 22:28:21,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558271233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:21,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157987926] [2023-11-06 22:28:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:21,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:21,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:21,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:21,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 341 [2023-11-06 22:28:21,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 382 transitions, 7701 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 22:28:21,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:21,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 341 [2023-11-06 22:28:21,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:23,799 INFO L124 PetriNetUnfolderBase]: 2541/4665 cut-off events. [2023-11-06 22:28:23,799 INFO L125 PetriNetUnfolderBase]: For 80152/80152 co-relation queries the response was YES. [2023-11-06 22:28:23,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33594 conditions, 4665 events. 2541/4665 cut-off events. For 80152/80152 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 32792 event pairs, 889 based on Foata normal form. 0/4463 useless extension candidates. Maximal degree in co-relation 32870. Up to 2896 conditions per place. [2023-11-06 22:28:23,859 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 411 selfloop transitions, 162 changer transitions 28/603 dead transitions. [2023-11-06 22:28:23,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 603 transitions, 12876 flow [2023-11-06 22:28:23,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:28:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 22:28:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2409 transitions. [2023-11-06 22:28:23,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47096774193548385 [2023-11-06 22:28:23,863 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2409 transitions. [2023-11-06 22:28:23,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2409 transitions. [2023-11-06 22:28:23,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:23,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2409 transitions. [2023-11-06 22:28:23,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 160.6) internal successors, (2409), 15 states have internal predecessors, (2409), 0 states have call successors, (0), 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 22:28:23,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 341.0) internal successors, (5456), 16 states have internal predecessors, (5456), 0 states have call successors, (0), 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 22:28:23,869 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 341.0) internal successors, (5456), 16 states have internal predecessors, (5456), 0 states have call successors, (0), 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 22:28:23,869 INFO L175 Difference]: Start difference. First operand has 225 places, 382 transitions, 7701 flow. Second operand 15 states and 2409 transitions. [2023-11-06 22:28:23,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 603 transitions, 12876 flow [2023-11-06 22:28:24,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 603 transitions, 12552 flow, removed 8 selfloop flow, removed 16 redundant places. [2023-11-06 22:28:24,263 INFO L231 Difference]: Finished difference. Result has 230 places, 475 transitions, 9870 flow [2023-11-06 22:28:24,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=7409, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9870, PETRI_PLACES=230, PETRI_TRANSITIONS=475} [2023-11-06 22:28:24,264 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 193 predicate places. [2023-11-06 22:28:24,264 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 475 transitions, 9870 flow [2023-11-06 22:28:24,264 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 22:28:24,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:24,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:24,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-06 22:28:24,264 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:24,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash -232663136, now seen corresponding path program 1 times [2023-11-06 22:28:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583152237] [2023-11-06 22:28:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:24,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:24,941 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 22:28:24,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:24,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583152237] [2023-11-06 22:28:24,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583152237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:24,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:24,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:24,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528075464] [2023-11-06 22:28:24,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:24,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:24,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:24,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:24,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:25,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:28:25,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 475 transitions, 9870 flow. Second operand has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:28:25,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:25,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:28:25,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:27,529 INFO L124 PetriNetUnfolderBase]: 2627/4871 cut-off events. [2023-11-06 22:28:27,529 INFO L125 PetriNetUnfolderBase]: For 120724/120724 co-relation queries the response was YES. [2023-11-06 22:28:27,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36970 conditions, 4871 events. 2627/4871 cut-off events. For 120724/120724 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 35104 event pairs, 853 based on Foata normal form. 18/4833 useless extension candidates. Maximal degree in co-relation 36186. Up to 2941 conditions per place. [2023-11-06 22:28:27,584 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 416 selfloop transitions, 166 changer transitions 25/609 dead transitions. [2023-11-06 22:28:27,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 609 transitions, 13488 flow [2023-11-06 22:28:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:28:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-06 22:28:27,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1903 transitions. [2023-11-06 22:28:27,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4650537634408602 [2023-11-06 22:28:27,589 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1903 transitions. [2023-11-06 22:28:27,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1903 transitions. [2023-11-06 22:28:27,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:27,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1903 transitions. [2023-11-06 22:28:27,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 158.58333333333334) internal successors, (1903), 12 states have internal predecessors, (1903), 0 states have call successors, (0), 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 22:28:27,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:27,597 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 341.0) internal successors, (4433), 13 states have internal predecessors, (4433), 0 states have call successors, (0), 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 22:28:27,597 INFO L175 Difference]: Start difference. First operand has 230 places, 475 transitions, 9870 flow. Second operand 12 states and 1903 transitions. [2023-11-06 22:28:27,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 609 transitions, 13488 flow [2023-11-06 22:28:28,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 609 transitions, 13296 flow, removed 49 selfloop flow, removed 4 redundant places. [2023-11-06 22:28:28,048 INFO L231 Difference]: Finished difference. Result has 241 places, 515 transitions, 11026 flow [2023-11-06 22:28:28,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=9684, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11026, PETRI_PLACES=241, PETRI_TRANSITIONS=515} [2023-11-06 22:28:28,049 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 204 predicate places. [2023-11-06 22:28:28,049 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 515 transitions, 11026 flow [2023-11-06 22:28:28,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:28:28,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:28,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:28,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-06 22:28:28,050 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 22:28:28,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash 407325842, now seen corresponding path program 2 times [2023-11-06 22:28:28,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:28,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429697340] [2023-11-06 22:28:28,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:28,662 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 22:28:28,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:28,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429697340] [2023-11-06 22:28:28,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429697340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:28,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:28,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:28,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166397096] [2023-11-06 22:28:28,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:28,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:28,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:28,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:29,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:28:29,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 515 transitions, 11026 flow. Second operand has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:28:29,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:29,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:28:29,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:31,384 INFO L124 PetriNetUnfolderBase]: 2966/5578 cut-off events. [2023-11-06 22:28:31,384 INFO L125 PetriNetUnfolderBase]: For 155593/155593 co-relation queries the response was YES. [2023-11-06 22:28:31,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43278 conditions, 5578 events. 2966/5578 cut-off events. For 155593/155593 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 41810 event pairs, 1039 based on Foata normal form. 18/5537 useless extension candidates. Maximal degree in co-relation 42350. Up to 3970 conditions per place. [2023-11-06 22:28:31,466 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 475 selfloop transitions, 174 changer transitions 21/672 dead transitions. [2023-11-06 22:28:31,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 672 transitions, 15255 flow [2023-11-06 22:28:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:28:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:28:31,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2674 transitions. [2023-11-06 22:28:31,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46127307227876485 [2023-11-06 22:28:31,471 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2674 transitions. [2023-11-06 22:28:31,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2674 transitions. [2023-11-06 22:28:31,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:31,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2674 transitions. [2023-11-06 22:28:31,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 157.2941176470588) internal successors, (2674), 17 states have internal predecessors, (2674), 0 states have call successors, (0), 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 22:28:31,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 341.0) internal successors, (6138), 18 states have internal predecessors, (6138), 0 states have call successors, (0), 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 22:28:31,478 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 341.0) internal successors, (6138), 18 states have internal predecessors, (6138), 0 states have call successors, (0), 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 22:28:31,478 INFO L175 Difference]: Start difference. First operand has 241 places, 515 transitions, 11026 flow. Second operand 17 states and 2674 transitions. [2023-11-06 22:28:31,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 672 transitions, 15255 flow [2023-11-06 22:28:32,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 672 transitions, 15073 flow, removed 50 selfloop flow, removed 4 redundant places. [2023-11-06 22:28:32,320 INFO L231 Difference]: Finished difference. Result has 264 places, 572 transitions, 12901 flow [2023-11-06 22:28:32,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=10878, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=12901, PETRI_PLACES=264, PETRI_TRANSITIONS=572} [2023-11-06 22:28:32,321 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 227 predicate places. [2023-11-06 22:28:32,321 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 572 transitions, 12901 flow [2023-11-06 22:28:32,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:28:32,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:32,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:32,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-06 22:28:32,322 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:32,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash 403377063, now seen corresponding path program 2 times [2023-11-06 22:28:32,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:32,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154748078] [2023-11-06 22:28:32,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:32,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:33,010 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 22:28:33,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:33,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154748078] [2023-11-06 22:28:33,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154748078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:33,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:33,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:28:33,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205771505] [2023-11-06 22:28:33,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:33,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:28:33,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:33,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:28:33,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:28:33,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 341 [2023-11-06 22:28:33,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 572 transitions, 12901 flow. Second operand has 11 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 0 states have call successors, (0), 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 22:28:33,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:33,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 341 [2023-11-06 22:28:33,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:36,629 INFO L124 PetriNetUnfolderBase]: 2979/5634 cut-off events. [2023-11-06 22:28:36,629 INFO L125 PetriNetUnfolderBase]: For 171147/171147 co-relation queries the response was YES. [2023-11-06 22:28:36,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45152 conditions, 5634 events. 2979/5634 cut-off events. For 171147/171147 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 42711 event pairs, 1013 based on Foata normal form. 2/5576 useless extension candidates. Maximal degree in co-relation 44191. Up to 4757 conditions per place. [2023-11-06 22:28:36,728 INFO L140 encePairwiseOnDemand]: 326/341 looper letters, 404 selfloop transitions, 220 changer transitions 1/627 dead transitions. [2023-11-06 22:28:36,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 627 transitions, 15104 flow [2023-11-06 22:28:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-06 22:28:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-06 22:28:36,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3293 transitions. [2023-11-06 22:28:36,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45985197598100824 [2023-11-06 22:28:36,734 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3293 transitions. [2023-11-06 22:28:36,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3293 transitions. [2023-11-06 22:28:36,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:36,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3293 transitions. [2023-11-06 22:28:36,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 156.8095238095238) internal successors, (3293), 21 states have internal predecessors, (3293), 0 states have call successors, (0), 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 22:28:36,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 341.0) internal successors, (7502), 22 states have internal predecessors, (7502), 0 states have call successors, (0), 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 22:28:36,746 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 341.0) internal successors, (7502), 22 states have internal predecessors, (7502), 0 states have call successors, (0), 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 22:28:36,747 INFO L175 Difference]: Start difference. First operand has 264 places, 572 transitions, 12901 flow. Second operand 21 states and 3293 transitions. [2023-11-06 22:28:36,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 627 transitions, 15104 flow [2023-11-06 22:28:37,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 627 transitions, 14701 flow, removed 178 selfloop flow, removed 4 redundant places. [2023-11-06 22:28:37,617 INFO L231 Difference]: Finished difference. Result has 285 places, 602 transitions, 13987 flow [2023-11-06 22:28:37,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=12640, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13987, PETRI_PLACES=285, PETRI_TRANSITIONS=602} [2023-11-06 22:28:37,618 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 248 predicate places. [2023-11-06 22:28:37,618 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 602 transitions, 13987 flow [2023-11-06 22:28:37,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 0 states have call successors, (0), 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 22:28:37,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:37,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:37,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-06 22:28:37,619 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 22:28:37,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash 407325843, now seen corresponding path program 3 times [2023-11-06 22:28:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828807943] [2023-11-06 22:28:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:38,325 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 22:28:38,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:38,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828807943] [2023-11-06 22:28:38,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828807943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:38,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:38,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:38,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989515944] [2023-11-06 22:28:38,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:38,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:38,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:38,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:38,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:38,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 341 [2023-11-06 22:28:38,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 602 transitions, 13987 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 22:28:38,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:38,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 341 [2023-11-06 22:28:38,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:41,915 INFO L124 PetriNetUnfolderBase]: 3001/5691 cut-off events. [2023-11-06 22:28:41,915 INFO L125 PetriNetUnfolderBase]: For 180483/180483 co-relation queries the response was YES. [2023-11-06 22:28:41,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45945 conditions, 5691 events. 3001/5691 cut-off events. For 180483/180483 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 43308 event pairs, 1051 based on Foata normal form. 16/5648 useless extension candidates. Maximal degree in co-relation 44981. Up to 4012 conditions per place. [2023-11-06 22:28:41,986 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 475 selfloop transitions, 201 changer transitions 17/695 dead transitions. [2023-11-06 22:28:41,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 695 transitions, 16822 flow [2023-11-06 22:28:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-06 22:28:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-06 22:28:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2703 transitions. [2023-11-06 22:28:41,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662756598240469 [2023-11-06 22:28:41,990 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2703 transitions. [2023-11-06 22:28:41,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2703 transitions. [2023-11-06 22:28:41,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:41,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2703 transitions. [2023-11-06 22:28:41,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 159.0) internal successors, (2703), 17 states have internal predecessors, (2703), 0 states have call successors, (0), 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 22:28:42,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 341.0) internal successors, (6138), 18 states have internal predecessors, (6138), 0 states have call successors, (0), 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 22:28:42,002 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 341.0) internal successors, (6138), 18 states have internal predecessors, (6138), 0 states have call successors, (0), 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 22:28:42,002 INFO L175 Difference]: Start difference. First operand has 285 places, 602 transitions, 13987 flow. Second operand 17 states and 2703 transitions. [2023-11-06 22:28:42,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 695 transitions, 16822 flow [2023-11-06 22:28:42,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 695 transitions, 16334 flow, removed 145 selfloop flow, removed 10 redundant places. [2023-11-06 22:28:42,730 INFO L231 Difference]: Finished difference. Result has 292 places, 612 transitions, 14236 flow [2023-11-06 22:28:42,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=13499, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=601, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14236, PETRI_PLACES=292, PETRI_TRANSITIONS=612} [2023-11-06 22:28:42,731 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 255 predicate places. [2023-11-06 22:28:42,731 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 612 transitions, 14236 flow [2023-11-06 22:28:42,731 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 22:28:42,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:42,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:42,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-06 22:28:42,732 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 22:28:42,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash -103552354, now seen corresponding path program 1 times [2023-11-06 22:28:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:42,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413165552] [2023-11-06 22:28:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:42,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:43,279 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 22:28:43,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:43,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413165552] [2023-11-06 22:28:43,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413165552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:43,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:43,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:28:43,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804083512] [2023-11-06 22:28:43,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:43,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:28:43,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:43,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:28:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:28:43,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 341 [2023-11-06 22:28:43,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 612 transitions, 14236 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 22:28:43,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:43,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 341 [2023-11-06 22:28:43,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:46,675 INFO L124 PetriNetUnfolderBase]: 3390/6659 cut-off events. [2023-11-06 22:28:46,675 INFO L125 PetriNetUnfolderBase]: For 207575/207575 co-relation queries the response was YES. [2023-11-06 22:28:46,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52438 conditions, 6659 events. 3390/6659 cut-off events. For 207575/207575 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 53918 event pairs, 1459 based on Foata normal form. 0/6598 useless extension candidates. Maximal degree in co-relation 51371. Up to 5115 conditions per place. [2023-11-06 22:28:46,805 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 512 selfloop transitions, 153 changer transitions 65/732 dead transitions. [2023-11-06 22:28:46,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 732 transitions, 18208 flow [2023-11-06 22:28:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:28:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:28:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1765 transitions. [2023-11-06 22:28:46,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47054118901626235 [2023-11-06 22:28:46,809 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1765 transitions. [2023-11-06 22:28:46,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1765 transitions. [2023-11-06 22:28:46,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:46,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1765 transitions. [2023-11-06 22:28:46,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 160.45454545454547) internal successors, (1765), 11 states have internal predecessors, (1765), 0 states have call successors, (0), 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 22:28:46,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 341.0) internal successors, (4092), 12 states have internal predecessors, (4092), 0 states have call successors, (0), 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 22:28:46,813 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 341.0) internal successors, (4092), 12 states have internal predecessors, (4092), 0 states have call successors, (0), 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 22:28:46,813 INFO L175 Difference]: Start difference. First operand has 292 places, 612 transitions, 14236 flow. Second operand 11 states and 1765 transitions. [2023-11-06 22:28:46,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 732 transitions, 18208 flow [2023-11-06 22:28:48,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 732 transitions, 17862 flow, removed 99 selfloop flow, removed 8 redundant places. [2023-11-06 22:28:48,043 INFO L231 Difference]: Finished difference. Result has 298 places, 637 transitions, 15010 flow [2023-11-06 22:28:48,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=13946, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15010, PETRI_PLACES=298, PETRI_TRANSITIONS=637} [2023-11-06 22:28:48,045 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 261 predicate places. [2023-11-06 22:28:48,045 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 637 transitions, 15010 flow [2023-11-06 22:28:48,045 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 22:28:48,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:48,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:48,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-06 22:28:48,046 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:48,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash -100915089, now seen corresponding path program 1 times [2023-11-06 22:28:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:48,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523568228] [2023-11-06 22:28:48,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:48,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:48,409 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 22:28:48,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:48,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523568228] [2023-11-06 22:28:48,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523568228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:48,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:48,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:28:48,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768226277] [2023-11-06 22:28:48,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:48,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:28:48,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:48,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:28:48,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:28:48,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:28:48,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 637 transitions, 15010 flow. Second operand has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 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 22:28:48,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:48,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:28:48,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:28:52,188 INFO L124 PetriNetUnfolderBase]: 4494/8944 cut-off events. [2023-11-06 22:28:52,189 INFO L125 PetriNetUnfolderBase]: For 358414/358414 co-relation queries the response was YES. [2023-11-06 22:28:52,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70345 conditions, 8944 events. 4494/8944 cut-off events. For 358414/358414 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 77969 event pairs, 1239 based on Foata normal form. 294/9227 useless extension candidates. Maximal degree in co-relation 69591. Up to 3862 conditions per place. [2023-11-06 22:28:52,315 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 583 selfloop transitions, 231 changer transitions 7/823 dead transitions. [2023-11-06 22:28:52,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 823 transitions, 20482 flow [2023-11-06 22:28:52,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:28:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:28:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1426 transitions. [2023-11-06 22:28:52,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46464646464646464 [2023-11-06 22:28:52,318 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1426 transitions. [2023-11-06 22:28:52,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1426 transitions. [2023-11-06 22:28:52,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:28:52,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1426 transitions. [2023-11-06 22:28:52,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 158.44444444444446) internal successors, (1426), 9 states have internal predecessors, (1426), 0 states have call successors, (0), 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 22:28:52,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:28:52,323 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:28:52,323 INFO L175 Difference]: Start difference. First operand has 298 places, 637 transitions, 15010 flow. Second operand 9 states and 1426 transitions. [2023-11-06 22:28:52,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 823 transitions, 20482 flow [2023-11-06 22:28:53,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 823 transitions, 20265 flow, removed 73 selfloop flow, removed 4 redundant places. [2023-11-06 22:28:53,910 INFO L231 Difference]: Finished difference. Result has 304 places, 696 transitions, 17181 flow [2023-11-06 22:28:53,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=14769, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=17181, PETRI_PLACES=304, PETRI_TRANSITIONS=696} [2023-11-06 22:28:53,911 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 267 predicate places. [2023-11-06 22:28:53,911 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 696 transitions, 17181 flow [2023-11-06 22:28:53,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 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 22:28:53,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:28:53,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:28:53,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-06 22:28:53,912 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:28:53,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:28:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1084848627, now seen corresponding path program 1 times [2023-11-06 22:28:53,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:28:53,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96432164] [2023-11-06 22:28:53,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:28:53,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:28:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:28:55,039 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 22:28:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:28:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96432164] [2023-11-06 22:28:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96432164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:28:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:28:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:28:55,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058921806] [2023-11-06 22:28:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:28:55,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:28:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:28:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:28:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:28:55,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 341 [2023-11-06 22:28:55,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 696 transitions, 17181 flow. Second operand has 11 states, 11 states have (on average 146.0909090909091) internal successors, (1607), 11 states have internal predecessors, (1607), 0 states have call successors, (0), 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 22:28:55,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:28:55,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 341 [2023-11-06 22:28:55,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:01,347 INFO L124 PetriNetUnfolderBase]: 4849/9950 cut-off events. [2023-11-06 22:29:01,347 INFO L125 PetriNetUnfolderBase]: For 363118/363118 co-relation queries the response was YES. [2023-11-06 22:29:01,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80063 conditions, 9950 events. 4849/9950 cut-off events. For 363118/363118 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 91084 event pairs, 2212 based on Foata normal form. 28/9964 useless extension candidates. Maximal degree in co-relation 79004. Up to 7075 conditions per place. [2023-11-06 22:29:01,524 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 526 selfloop transitions, 218 changer transitions 81/827 dead transitions. [2023-11-06 22:29:01,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 827 transitions, 21771 flow [2023-11-06 22:29:01,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:29:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-06 22:29:01,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2132 transitions. [2023-11-06 22:29:01,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.446585672392124 [2023-11-06 22:29:01,528 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2132 transitions. [2023-11-06 22:29:01,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2132 transitions. [2023-11-06 22:29:01,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:01,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2132 transitions. [2023-11-06 22:29:01,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 152.28571428571428) internal successors, (2132), 14 states have internal predecessors, (2132), 0 states have call successors, (0), 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 22:29:01,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:29:01,533 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 341.0) internal successors, (5115), 15 states have internal predecessors, (5115), 0 states have call successors, (0), 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 22:29:01,533 INFO L175 Difference]: Start difference. First operand has 304 places, 696 transitions, 17181 flow. Second operand 14 states and 2132 transitions. [2023-11-06 22:29:01,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 827 transitions, 21771 flow [2023-11-06 22:29:03,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 827 transitions, 21472 flow, removed 119 selfloop flow, removed 4 redundant places. [2023-11-06 22:29:03,568 INFO L231 Difference]: Finished difference. Result has 318 places, 707 transitions, 17997 flow [2023-11-06 22:29:03,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=16902, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=694, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17997, PETRI_PLACES=318, PETRI_TRANSITIONS=707} [2023-11-06 22:29:03,569 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 281 predicate places. [2023-11-06 22:29:03,570 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 707 transitions, 17997 flow [2023-11-06 22:29:03,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 146.0909090909091) internal successors, (1607), 11 states have internal predecessors, (1607), 0 states have call successors, (0), 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 22:29:03,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:03,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:03,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-06 22:29:03,570 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:03,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash 398908412, now seen corresponding path program 3 times [2023-11-06 22:29:03,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:03,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390889109] [2023-11-06 22:29:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:03,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:04,201 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 22:29:04,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390889109] [2023-11-06 22:29:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390889109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:29:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666403083] [2023-11-06 22:29:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:04,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:29:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:29:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:29:04,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:29:04,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 707 transitions, 17997 flow. Second operand has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:29:04,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:04,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:29:04,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:09,124 INFO L124 PetriNetUnfolderBase]: 4531/9201 cut-off events. [2023-11-06 22:29:09,125 INFO L125 PetriNetUnfolderBase]: For 351543/351543 co-relation queries the response was YES. [2023-11-06 22:29:09,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76458 conditions, 9201 events. 4531/9201 cut-off events. For 351543/351543 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 82853 event pairs, 1946 based on Foata normal form. 20/9206 useless extension candidates. Maximal degree in co-relation 75389. Up to 7528 conditions per place. [2023-11-06 22:29:09,331 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 562 selfloop transitions, 205 changer transitions 15/784 dead transitions. [2023-11-06 22:29:09,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 784 transitions, 20921 flow [2023-11-06 22:29:09,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-06 22:29:09,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-06 22:29:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2353 transitions. [2023-11-06 22:29:09,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460019550342131 [2023-11-06 22:29:09,336 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2353 transitions. [2023-11-06 22:29:09,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2353 transitions. [2023-11-06 22:29:09,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:09,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2353 transitions. [2023-11-06 22:29:09,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 156.86666666666667) internal successors, (2353), 15 states have internal predecessors, (2353), 0 states have call successors, (0), 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 22:29:09,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 341.0) internal successors, (5456), 16 states have internal predecessors, (5456), 0 states have call successors, (0), 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 22:29:09,541 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 341.0) internal successors, (5456), 16 states have internal predecessors, (5456), 0 states have call successors, (0), 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 22:29:09,541 INFO L175 Difference]: Start difference. First operand has 318 places, 707 transitions, 17997 flow. Second operand 15 states and 2353 transitions. [2023-11-06 22:29:09,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 784 transitions, 20921 flow [2023-11-06 22:29:11,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 784 transitions, 20530 flow, removed 62 selfloop flow, removed 9 redundant places. [2023-11-06 22:29:11,640 INFO L231 Difference]: Finished difference. Result has 329 places, 726 transitions, 18693 flow [2023-11-06 22:29:11,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=17622, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18693, PETRI_PLACES=329, PETRI_TRANSITIONS=726} [2023-11-06 22:29:11,641 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 292 predicate places. [2023-11-06 22:29:11,642 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 726 transitions, 18693 flow [2023-11-06 22:29:11,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:29:11,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:11,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:11,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-06 22:29:11,643 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:11,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash -98097191, now seen corresponding path program 1 times [2023-11-06 22:29:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:11,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653506857] [2023-11-06 22:29:11,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:12,273 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 22:29:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:12,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653506857] [2023-11-06 22:29:12,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653506857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:12,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:12,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:29:12,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772839885] [2023-11-06 22:29:12,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:12,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:29:12,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:29:12,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:29:12,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 341 [2023-11-06 22:29:12,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 726 transitions, 18693 flow. Second operand has 10 states, 10 states have (on average 147.1) internal successors, (1471), 10 states have internal predecessors, (1471), 0 states have call successors, (0), 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 22:29:12,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:12,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 341 [2023-11-06 22:29:12,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:18,759 INFO L124 PetriNetUnfolderBase]: 5464/11096 cut-off events. [2023-11-06 22:29:18,759 INFO L125 PetriNetUnfolderBase]: For 450339/450339 co-relation queries the response was YES. [2023-11-06 22:29:19,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93371 conditions, 11096 events. 5464/11096 cut-off events. For 450339/450339 co-relation queries the response was YES. Maximal size of possible extension queue 958. Compared 102963 event pairs, 1796 based on Foata normal form. 36/11128 useless extension candidates. Maximal degree in co-relation 92262. Up to 4581 conditions per place. [2023-11-06 22:29:19,075 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 618 selfloop transitions, 254 changer transitions 1/875 dead transitions. [2023-11-06 22:29:19,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 875 transitions, 23763 flow [2023-11-06 22:29:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:29:19,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-06 22:29:19,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1420 transitions. [2023-11-06 22:29:19,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4626914304333659 [2023-11-06 22:29:19,078 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1420 transitions. [2023-11-06 22:29:19,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1420 transitions. [2023-11-06 22:29:19,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:19,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1420 transitions. [2023-11-06 22:29:19,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 157.77777777777777) internal successors, (1420), 9 states have internal predecessors, (1420), 0 states have call successors, (0), 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 22:29:19,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:29:19,083 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 341.0) internal successors, (3410), 10 states have internal predecessors, (3410), 0 states have call successors, (0), 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 22:29:19,083 INFO L175 Difference]: Start difference. First operand has 329 places, 726 transitions, 18693 flow. Second operand 9 states and 1420 transitions. [2023-11-06 22:29:19,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 875 transitions, 23763 flow [2023-11-06 22:29:21,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 875 transitions, 23604 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-11-06 22:29:21,923 INFO L231 Difference]: Finished difference. Result has 335 places, 785 transitions, 20946 flow [2023-11-06 22:29:21,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=18535, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=203, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=20946, PETRI_PLACES=335, PETRI_TRANSITIONS=785} [2023-11-06 22:29:21,925 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 298 predicate places. [2023-11-06 22:29:21,925 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 785 transitions, 20946 flow [2023-11-06 22:29:21,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.1) internal successors, (1471), 10 states have internal predecessors, (1471), 0 states have call successors, (0), 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 22:29:21,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:21,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:21,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-06 22:29:21,926 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:21,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:21,927 INFO L85 PathProgramCache]: Analyzing trace with hash -90370748, now seen corresponding path program 1 times [2023-11-06 22:29:21,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752851988] [2023-11-06 22:29:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:22,395 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 22:29:22,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:22,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752851988] [2023-11-06 22:29:22,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752851988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:22,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:22,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:29:22,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464758793] [2023-11-06 22:29:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:22,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:29:22,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:29:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:29:22,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 341 [2023-11-06 22:29:22,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 785 transitions, 20946 flow. Second operand has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 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 22:29:22,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:22,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 341 [2023-11-06 22:29:22,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:28,598 INFO L124 PetriNetUnfolderBase]: 5509/11353 cut-off events. [2023-11-06 22:29:28,598 INFO L125 PetriNetUnfolderBase]: For 545946/545946 co-relation queries the response was YES. [2023-11-06 22:29:28,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96644 conditions, 11353 events. 5509/11353 cut-off events. For 545946/545946 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 107300 event pairs, 1648 based on Foata normal form. 344/11676 useless extension candidates. Maximal degree in co-relation 95585. Up to 4795 conditions per place. [2023-11-06 22:29:28,853 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 646 selfloop transitions, 288 changer transitions 6/942 dead transitions. [2023-11-06 22:29:28,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 942 transitions, 26134 flow [2023-11-06 22:29:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:29:28,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 22:29:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1114 transitions. [2023-11-06 22:29:28,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666945957268538 [2023-11-06 22:29:28,856 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1114 transitions. [2023-11-06 22:29:28,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1114 transitions. [2023-11-06 22:29:28,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:28,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1114 transitions. [2023-11-06 22:29:28,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.14285714285714) internal successors, (1114), 7 states have internal predecessors, (1114), 0 states have call successors, (0), 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 22:29:28,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:29:28,860 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 341.0) internal successors, (2728), 8 states have internal predecessors, (2728), 0 states have call successors, (0), 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 22:29:28,860 INFO L175 Difference]: Start difference. First operand has 335 places, 785 transitions, 20946 flow. Second operand 7 states and 1114 transitions. [2023-11-06 22:29:28,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 942 transitions, 26134 flow [2023-11-06 22:29:33,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 942 transitions, 25716 flow, removed 158 selfloop flow, removed 2 redundant places. [2023-11-06 22:29:33,087 INFO L231 Difference]: Finished difference. Result has 341 places, 828 transitions, 22551 flow [2023-11-06 22:29:33,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=20312, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=22551, PETRI_PLACES=341, PETRI_TRANSITIONS=828} [2023-11-06 22:29:33,089 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 304 predicate places. [2023-11-06 22:29:33,089 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 828 transitions, 22551 flow [2023-11-06 22:29:33,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 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 22:29:33,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:33,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:33,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-06 22:29:33,089 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:33,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:33,090 INFO L85 PathProgramCache]: Analyzing trace with hash -90370751, now seen corresponding path program 2 times [2023-11-06 22:29:33,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:33,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002342083] [2023-11-06 22:29:33,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:33,617 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 22:29:33,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:33,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002342083] [2023-11-06 22:29:33,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002342083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:33,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:33,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:29:33,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145789995] [2023-11-06 22:29:33,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:33,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:29:33,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:29:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:29:34,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 341 [2023-11-06 22:29:34,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 828 transitions, 22551 flow. Second operand has 10 states, 10 states have (on average 147.1) internal successors, (1471), 10 states have internal predecessors, (1471), 0 states have call successors, (0), 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 22:29:34,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:34,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 341 [2023-11-06 22:29:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:40,440 INFO L124 PetriNetUnfolderBase]: 5323/10953 cut-off events. [2023-11-06 22:29:40,440 INFO L125 PetriNetUnfolderBase]: For 481446/481446 co-relation queries the response was YES. [2023-11-06 22:29:40,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96661 conditions, 10953 events. 5323/10953 cut-off events. For 481446/481446 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 102833 event pairs, 1739 based on Foata normal form. 36/10969 useless extension candidates. Maximal degree in co-relation 95577. Up to 4691 conditions per place. [2023-11-06 22:29:40,618 INFO L140 encePairwiseOnDemand]: 327/341 looper letters, 656 selfloop transitions, 299 changer transitions 4/961 dead transitions. [2023-11-06 22:29:40,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 961 transitions, 27390 flow [2023-11-06 22:29:40,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:29:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-06 22:29:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1584 transitions. [2023-11-06 22:29:40,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4645161290322581 [2023-11-06 22:29:40,621 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1584 transitions. [2023-11-06 22:29:40,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1584 transitions. [2023-11-06 22:29:40,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:40,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1584 transitions. [2023-11-06 22:29:40,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 158.4) internal successors, (1584), 10 states have internal predecessors, (1584), 0 states have call successors, (0), 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 22:29:40,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:29:40,794 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 341.0) internal successors, (3751), 11 states have internal predecessors, (3751), 0 states have call successors, (0), 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 22:29:40,794 INFO L175 Difference]: Start difference. First operand has 341 places, 828 transitions, 22551 flow. Second operand 10 states and 1584 transitions. [2023-11-06 22:29:40,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 961 transitions, 27390 flow [2023-11-06 22:29:44,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 961 transitions, 26783 flow, removed 186 selfloop flow, removed 4 redundant places. [2023-11-06 22:29:44,375 INFO L231 Difference]: Finished difference. Result has 350 places, 844 transitions, 23475 flow [2023-11-06 22:29:44,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=21926, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=826, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23475, PETRI_PLACES=350, PETRI_TRANSITIONS=844} [2023-11-06 22:29:44,376 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 313 predicate places. [2023-11-06 22:29:44,376 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 844 transitions, 23475 flow [2023-11-06 22:29:44,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 147.1) internal successors, (1471), 10 states have internal predecessors, (1471), 0 states have call successors, (0), 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 22:29:44,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:44,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:44,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-06 22:29:44,377 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:44,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash 403377062, now seen corresponding path program 4 times [2023-11-06 22:29:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485105108] [2023-11-06 22:29:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:44,863 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 22:29:44,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:44,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485105108] [2023-11-06 22:29:44,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485105108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:44,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:44,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:29:44,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934612045] [2023-11-06 22:29:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:44,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:29:44,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:44,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:29:44,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:29:45,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 341 [2023-11-06 22:29:45,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 844 transitions, 23475 flow. Second operand has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:29:45,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:45,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 341 [2023-11-06 22:29:45,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:29:52,182 INFO L124 PetriNetUnfolderBase]: 5483/11267 cut-off events. [2023-11-06 22:29:52,182 INFO L125 PetriNetUnfolderBase]: For 505663/505663 co-relation queries the response was YES. [2023-11-06 22:29:52,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100995 conditions, 11267 events. 5483/11267 cut-off events. For 505663/505663 co-relation queries the response was YES. Maximal size of possible extension queue 1003. Compared 106537 event pairs, 2334 based on Foata normal form. 13/11261 useless extension candidates. Maximal degree in co-relation 99730. Up to 7959 conditions per place. [2023-11-06 22:29:52,424 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 718 selfloop transitions, 241 changer transitions 40/1001 dead transitions. [2023-11-06 22:29:52,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1001 transitions, 29175 flow [2023-11-06 22:29:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 22:29:52,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-06 22:29:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2832 transitions. [2023-11-06 22:29:52,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4613880742913001 [2023-11-06 22:29:52,429 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2832 transitions. [2023-11-06 22:29:52,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2832 transitions. [2023-11-06 22:29:52,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:29:52,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2832 transitions. [2023-11-06 22:29:52,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 157.33333333333334) internal successors, (2832), 18 states have internal predecessors, (2832), 0 states have call successors, (0), 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 22:29:52,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 341.0) internal successors, (6479), 19 states have internal predecessors, (6479), 0 states have call successors, (0), 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 22:29:52,440 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 341.0) internal successors, (6479), 19 states have internal predecessors, (6479), 0 states have call successors, (0), 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 22:29:52,440 INFO L175 Difference]: Start difference. First operand has 350 places, 844 transitions, 23475 flow. Second operand 18 states and 2832 transitions. [2023-11-06 22:29:52,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1001 transitions, 29175 flow [2023-11-06 22:29:56,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 1001 transitions, 28801 flow, removed 66 selfloop flow, removed 5 redundant places. [2023-11-06 22:29:56,211 INFO L231 Difference]: Finished difference. Result has 365 places, 859 transitions, 24223 flow [2023-11-06 22:29:56,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=23012, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24223, PETRI_PLACES=365, PETRI_TRANSITIONS=859} [2023-11-06 22:29:56,212 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 328 predicate places. [2023-11-06 22:29:56,212 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 859 transitions, 24223 flow [2023-11-06 22:29:56,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 151.1) internal successors, (1511), 10 states have internal predecessors, (1511), 0 states have call successors, (0), 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 22:29:56,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:29:56,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:29:56,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-06 22:29:56,213 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:29:56,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:29:56,214 INFO L85 PathProgramCache]: Analyzing trace with hash 398908413, now seen corresponding path program 4 times [2023-11-06 22:29:56,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:29:56,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581604368] [2023-11-06 22:29:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:29:56,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:29:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:29:56,823 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 22:29:56,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:29:56,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581604368] [2023-11-06 22:29:56,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581604368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:29:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:29:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:29:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613029847] [2023-11-06 22:29:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:29:56,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:29:56,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:29:56,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:29:56,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:29:57,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 341 [2023-11-06 22:29:57,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 859 transitions, 24223 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 22:29:57,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:29:57,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 341 [2023-11-06 22:29:57,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:30:03,760 INFO L124 PetriNetUnfolderBase]: 5418/11217 cut-off events. [2023-11-06 22:30:03,761 INFO L125 PetriNetUnfolderBase]: For 503952/503952 co-relation queries the response was YES. [2023-11-06 22:30:03,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100163 conditions, 11217 events. 5418/11217 cut-off events. For 503952/503952 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 106850 event pairs, 2442 based on Foata normal form. 6/11190 useless extension candidates. Maximal degree in co-relation 99100. Up to 9659 conditions per place. [2023-11-06 22:30:04,031 INFO L140 encePairwiseOnDemand]: 326/341 looper letters, 631 selfloop transitions, 246 changer transitions 6/885 dead transitions. [2023-11-06 22:30:04,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 885 transitions, 26201 flow [2023-11-06 22:30:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:30:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-06 22:30:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2983 transitions. [2023-11-06 22:30:04,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4604105571847507 [2023-11-06 22:30:04,037 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2983 transitions. [2023-11-06 22:30:04,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2983 transitions. [2023-11-06 22:30:04,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:30:04,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2983 transitions. [2023-11-06 22:30:04,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 157.0) internal successors, (2983), 19 states have internal predecessors, (2983), 0 states have call successors, (0), 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 22:30:04,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:30:04,047 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 341.0) internal successors, (6820), 20 states have internal predecessors, (6820), 0 states have call successors, (0), 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 22:30:04,048 INFO L175 Difference]: Start difference. First operand has 365 places, 859 transitions, 24223 flow. Second operand 19 states and 2983 transitions. [2023-11-06 22:30:04,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 885 transitions, 26201 flow [2023-11-06 22:30:07,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 885 transitions, 25760 flow, removed 46 selfloop flow, removed 10 redundant places. [2023-11-06 22:30:07,677 INFO L231 Difference]: Finished difference. Result has 371 places, 853 transitions, 24073 flow [2023-11-06 22:30:07,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=23581, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=24073, PETRI_PLACES=371, PETRI_TRANSITIONS=853} [2023-11-06 22:30:07,678 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 334 predicate places. [2023-11-06 22:30:07,679 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 853 transitions, 24073 flow [2023-11-06 22:30:07,679 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 22:30:07,679 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:30:07,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:07,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-06 22:30:07,679 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:30:07,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:07,680 INFO L85 PathProgramCache]: Analyzing trace with hash -228771086, now seen corresponding path program 5 times [2023-11-06 22:30:07,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:07,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051459354] [2023-11-06 22:30:07,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:08,092 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 22:30:08,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:08,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051459354] [2023-11-06 22:30:08,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051459354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:08,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:30:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730636414] [2023-11-06 22:30:08,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:08,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:30:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:08,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:30:08,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:30:08,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 341 [2023-11-06 22:30:08,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 853 transitions, 24073 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 22:30:08,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:30:08,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 341 [2023-11-06 22:30:08,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:30:14,208 INFO L124 PetriNetUnfolderBase]: 5141/10808 cut-off events. [2023-11-06 22:30:14,208 INFO L125 PetriNetUnfolderBase]: For 485861/485982 co-relation queries the response was YES. [2023-11-06 22:30:14,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96138 conditions, 10808 events. 5141/10808 cut-off events. For 485861/485982 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 103534 event pairs, 1497 based on Foata normal form. 111/10789 useless extension candidates. Maximal degree in co-relation 94983. Up to 2809 conditions per place. [2023-11-06 22:30:14,390 INFO L140 encePairwiseOnDemand]: 329/341 looper letters, 455 selfloop transitions, 410 changer transitions 27/987 dead transitions. [2023-11-06 22:30:14,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 987 transitions, 28532 flow [2023-11-06 22:30:14,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:30:14,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-06 22:30:14,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2209 transitions. [2023-11-06 22:30:14,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4983081434694338 [2023-11-06 22:30:14,393 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2209 transitions. [2023-11-06 22:30:14,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2209 transitions. [2023-11-06 22:30:14,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:30:14,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2209 transitions. [2023-11-06 22:30:14,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 169.92307692307693) internal successors, (2209), 13 states have internal predecessors, (2209), 0 states have call successors, (0), 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 22:30:14,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:30:14,398 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 341.0) internal successors, (4774), 14 states have internal predecessors, (4774), 0 states have call successors, (0), 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 22:30:14,398 INFO L175 Difference]: Start difference. First operand has 371 places, 853 transitions, 24073 flow. Second operand 13 states and 2209 transitions. [2023-11-06 22:30:14,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 987 transitions, 28532 flow [2023-11-06 22:30:17,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 987 transitions, 28064 flow, removed 59 selfloop flow, removed 15 redundant places. [2023-11-06 22:30:18,004 INFO L231 Difference]: Finished difference. Result has 373 places, 866 transitions, 25611 flow [2023-11-06 22:30:18,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=341, PETRI_DIFFERENCE_MINUEND_FLOW=23143, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=25611, PETRI_PLACES=373, PETRI_TRANSITIONS=866} [2023-11-06 22:30:18,005 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 336 predicate places. [2023-11-06 22:30:18,005 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 866 transitions, 25611 flow [2023-11-06 22:30:18,006 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 22:30:18,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:30:18,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:30:18,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-06 22:30:18,006 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-06 22:30:18,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:30:18,006 INFO L85 PathProgramCache]: Analyzing trace with hash -101095512, now seen corresponding path program 1 times [2023-11-06 22:30:18,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:30:18,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042797651] [2023-11-06 22:30:18,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:30:18,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:30:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:30:18,621 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 22:30:18,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:30:18,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042797651] [2023-11-06 22:30:18,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042797651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:30:18,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:30:18,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:30:18,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227598142] [2023-11-06 22:30:18,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:30:18,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:30:18,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:30:18,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:30:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:30:19,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 341 [2023-11-06 22:30:19,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 866 transitions, 25611 flow. Second operand has 10 states, 10 states have (on average 147.1) internal successors, (1471), 10 states have internal predecessors, (1471), 0 states have call successors, (0), 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 22:30:19,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:30:19,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 341 [2023-11-06 22:30:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:30:26,319 INFO L124 PetriNetUnfolderBase]: 5269/10904 cut-off events. [2023-11-06 22:30:26,320 INFO L125 PetriNetUnfolderBase]: For 540941/540941 co-relation queries the response was YES. [2023-11-06 22:30:26,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99855 conditions, 10904 events. 5269/10904 cut-off events. For 540941/540941 co-relation queries the response was YES. Maximal size of possible extension queue 964. Compared 102755 event pairs, 1863 based on Foata normal form. 33/10904 useless extension candidates. Maximal degree in co-relation 98595. Up to 4693 conditions per place. [2023-11-06 22:30:26,561 INFO L140 encePairwiseOnDemand]: 328/341 looper letters, 751 selfloop transitions, 202 changer transitions 6/961 dead transitions. [2023-11-06 22:30:26,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 961 transitions, 29388 flow [2023-11-06 22:30:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:30:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 22:30:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1727 transitions. [2023-11-06 22:30:26,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4604105571847507 [2023-11-06 22:30:26,564 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1727 transitions. [2023-11-06 22:30:26,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1727 transitions. [2023-11-06 22:30:26,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:30:26,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1727 transitions. [2023-11-06 22:30:26,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 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 22:30:26,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 341.0) internal successors, (4092), 12 states have internal predecessors, (4092), 0 states have call successors, (0), 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 22:30:26,568 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 341.0) internal successors, (4092), 12 states have internal predecessors, (4092), 0 states have call successors, (0), 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 22:30:26,568 INFO L175 Difference]: Start difference. First operand has 373 places, 866 transitions, 25611 flow. Second operand 11 states and 1727 transitions. [2023-11-06 22:30:26,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 961 transitions, 29388 flow