./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:13:30,613 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:13:30,660 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:13:30,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:13:30,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:13:30,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:13:30,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:13:30,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:13:30,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:13:30,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:13:30,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:13:30,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:13:30,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:13:30,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:13:30,689 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:13:30,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:13:30,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:13:30,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:13:30,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:13:30,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:13:30,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:13:30,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:13:30,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:13:30,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:13:30,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:13:30,696 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:13:30,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:13:30,696 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:13:30,697 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:13:30,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:13:30,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:13:30,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:13:30,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:13:30,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:13:30,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:13:30,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:13:30,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:13:30,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:13:30,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:13:30,699 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-11-10 22:13:30,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:13:30,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:13:30,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:13:30,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:13:30,956 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:13:30,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-11-10 22:13:32,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:13:32,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:13:32,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-11-10 22:13:32,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755ea40d/7e4c3d6bff844a64968571e448fad14f/FLAGf24ce156d [2024-11-10 22:13:32,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6755ea40d/7e4c3d6bff844a64968571e448fad14f [2024-11-10 22:13:32,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:13:32,790 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:13:32,791 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:13:32,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:13:32,798 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:13:32,798 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:13:32" (1/1) ... [2024-11-10 22:13:32,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450f609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:32, skipping insertion in model container [2024-11-10 22:13:32,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:13:32" (1/1) ... [2024-11-10 22:13:32,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:13:33,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:13:33,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:13:33,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:13:33,501 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:13:33,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33 WrapperNode [2024-11-10 22:13:33,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:13:33,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:13:33,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:13:33,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:13:33,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,543 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2024-11-10 22:13:33,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:13:33,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:13:33,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:13:33,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:13:33,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,570 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2024-11-10 22:13:33,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,580 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:13:33,590 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:13:33,590 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:13:33,590 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:13:33,591 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (1/1) ... [2024-11-10 22:13:33,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:13:33,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:13:33,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:13:33,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:13:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-10 22:13:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:13:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:13:33,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:13:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 22:13:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 22:13:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 22:13:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:13:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:13:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:13:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:13:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:13:33,678 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:13:33,895 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:13:33,897 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:13:34,130 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:13:34,131 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:13:34,339 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:13:34,339 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:13:34,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:13:34 BoogieIcfgContainer [2024-11-10 22:13:34,340 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:13:34,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:13:34,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:13:34,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:13:34,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:13:32" (1/3) ... [2024-11-10 22:13:34,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e51aa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:13:34, skipping insertion in model container [2024-11-10 22:13:34,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:33" (2/3) ... [2024-11-10 22:13:34,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e51aa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:13:34, skipping insertion in model container [2024-11-10 22:13:34,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:13:34" (3/3) ... [2024-11-10 22:13:34,346 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-11-10 22:13:34,371 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:13:34,371 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 22:13:34,371 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:13:34,411 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:13:34,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 102 flow [2024-11-10 22:13:34,472 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-10 22:13:34,474 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:13:34,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 2/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 122 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-11-10 22:13:34,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 102 flow [2024-11-10 22:13:34,480 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 38 transitions, 85 flow [2024-11-10 22:13:34,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:13:34,497 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@6dd655ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:13:34,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 22:13:34,506 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:13:34,506 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-11-10 22:13:34,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:13:34,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:34,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:34,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:34,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:34,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1873702075, now seen corresponding path program 1 times [2024-11-10 22:13:34,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:34,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704674085] [2024-11-10 22:13:34,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:34,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:35,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:35,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704674085] [2024-11-10 22:13:35,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704674085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:35,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:35,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:13:35,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61310648] [2024-11-10 22:13:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:35,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:13:35,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:35,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:13:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:13:35,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:35,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:35,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:35,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:35,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:36,279 INFO L124 PetriNetUnfolderBase]: 2063/3406 cut-off events. [2024-11-10 22:13:36,280 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-10 22:13:36,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6814 conditions, 3406 events. 2063/3406 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 18971 event pairs, 210 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 6712. Up to 1036 conditions per place. [2024-11-10 22:13:36,298 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 132 selfloop transitions, 20 changer transitions 17/172 dead transitions. [2024-11-10 22:13:36,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 172 transitions, 706 flow [2024-11-10 22:13:36,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:13:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:13:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 238 transitions. [2024-11-10 22:13:36,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49173553719008267 [2024-11-10 22:13:36,310 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 85 flow. Second operand 11 states and 238 transitions. [2024-11-10 22:13:36,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 172 transitions, 706 flow [2024-11-10 22:13:36,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 172 transitions, 693 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:13:36,321 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 208 flow [2024-11-10 22:13:36,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=208, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-10 22:13:36,325 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2024-11-10 22:13:36,325 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 208 flow [2024-11-10 22:13:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:36,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:36,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:36,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:13:36,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:36,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:36,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1873702076, now seen corresponding path program 1 times [2024-11-10 22:13:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:36,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438129564] [2024-11-10 22:13:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:36,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:36,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438129564] [2024-11-10 22:13:36,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438129564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:36,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:36,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:13:36,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811012016] [2024-11-10 22:13:36,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:36,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:13:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:36,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:13:36,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:13:36,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:36,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:36,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:36,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:36,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:37,218 INFO L124 PetriNetUnfolderBase]: 2702/4536 cut-off events. [2024-11-10 22:13:37,219 INFO L125 PetriNetUnfolderBase]: For 1426/1426 co-relation queries the response was YES. [2024-11-10 22:13:37,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10517 conditions, 4536 events. 2702/4536 cut-off events. For 1426/1426 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 27157 event pairs, 1330 based on Foata normal form. 122/4494 useless extension candidates. Maximal degree in co-relation 10415. Up to 2665 conditions per place. [2024-11-10 22:13:37,237 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 121 selfloop transitions, 25 changer transitions 5/154 dead transitions. [2024-11-10 22:13:37,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 154 transitions, 796 flow [2024-11-10 22:13:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:13:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:13:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 180 transitions. [2024-11-10 22:13:37,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2024-11-10 22:13:37,240 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 208 flow. Second operand 10 states and 180 transitions. [2024-11-10 22:13:37,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 154 transitions, 796 flow [2024-11-10 22:13:37,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 154 transitions, 794 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:13:37,246 INFO L231 Difference]: Finished difference. Result has 71 places, 84 transitions, 417 flow [2024-11-10 22:13:37,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=417, PETRI_PLACES=71, PETRI_TRANSITIONS=84} [2024-11-10 22:13:37,247 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-11-10 22:13:37,248 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 417 flow [2024-11-10 22:13:37,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:37,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:37,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:37,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:13:37,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:37,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:37,249 INFO L85 PathProgramCache]: Analyzing trace with hash -26423826, now seen corresponding path program 1 times [2024-11-10 22:13:37,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:37,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238490281] [2024-11-10 22:13:37,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:37,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:37,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238490281] [2024-11-10 22:13:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238490281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:37,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:13:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622708109] [2024-11-10 22:13:37,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:37,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:13:37,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:37,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:13:37,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:13:37,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:37,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 84 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:37,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:37,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:37,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:38,652 INFO L124 PetriNetUnfolderBase]: 3284/5614 cut-off events. [2024-11-10 22:13:38,652 INFO L125 PetriNetUnfolderBase]: For 4106/4108 co-relation queries the response was YES. [2024-11-10 22:13:38,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14383 conditions, 5614 events. 3284/5614 cut-off events. For 4106/4108 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 36130 event pairs, 807 based on Foata normal form. 2/5508 useless extension candidates. Maximal degree in co-relation 13623. Up to 2101 conditions per place. [2024-11-10 22:13:38,684 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 187 selfloop transitions, 44 changer transitions 25/259 dead transitions. [2024-11-10 22:13:38,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 259 transitions, 1765 flow [2024-11-10 22:13:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:13:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:13:38,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 234 transitions. [2024-11-10 22:13:38,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4834710743801653 [2024-11-10 22:13:38,686 INFO L175 Difference]: Start difference. First operand has 71 places, 84 transitions, 417 flow. Second operand 11 states and 234 transitions. [2024-11-10 22:13:38,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 259 transitions, 1765 flow [2024-11-10 22:13:38,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 259 transitions, 1763 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:13:38,702 INFO L231 Difference]: Finished difference. Result has 86 places, 120 transitions, 794 flow [2024-11-10 22:13:38,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=794, PETRI_PLACES=86, PETRI_TRANSITIONS=120} [2024-11-10 22:13:38,703 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 41 predicate places. [2024-11-10 22:13:38,703 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 120 transitions, 794 flow [2024-11-10 22:13:38,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:38,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:38,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:38,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:13:38,704 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:38,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash -26423825, now seen corresponding path program 1 times [2024-11-10 22:13:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665939847] [2024-11-10 22:13:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665939847] [2024-11-10 22:13:38,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665939847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:38,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:38,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:13:38,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084130122] [2024-11-10 22:13:38,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:38,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:13:38,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:38,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:13:38,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:13:38,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:38,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 120 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:38,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:38,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:38,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:39,650 INFO L124 PetriNetUnfolderBase]: 2826/4852 cut-off events. [2024-11-10 22:13:39,651 INFO L125 PetriNetUnfolderBase]: For 7433/7435 co-relation queries the response was YES. [2024-11-10 22:13:39,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14636 conditions, 4852 events. 2826/4852 cut-off events. For 7433/7435 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 30812 event pairs, 923 based on Foata normal form. 130/4982 useless extension candidates. Maximal degree in co-relation 13827. Up to 2506 conditions per place. [2024-11-10 22:13:39,687 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 172 selfloop transitions, 45 changer transitions 5/225 dead transitions. [2024-11-10 22:13:39,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 225 transitions, 1803 flow [2024-11-10 22:13:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:13:39,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:13:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-11-10 22:13:39,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3977272727272727 [2024-11-10 22:13:39,689 INFO L175 Difference]: Start difference. First operand has 86 places, 120 transitions, 794 flow. Second operand 10 states and 175 transitions. [2024-11-10 22:13:39,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 225 transitions, 1803 flow [2024-11-10 22:13:39,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 225 transitions, 1781 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-11-10 22:13:39,720 INFO L231 Difference]: Finished difference. Result has 102 places, 151 transitions, 1164 flow [2024-11-10 22:13:39,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1164, PETRI_PLACES=102, PETRI_TRANSITIONS=151} [2024-11-10 22:13:39,722 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 57 predicate places. [2024-11-10 22:13:39,723 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 151 transitions, 1164 flow [2024-11-10 22:13:39,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:39,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:39,723 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:39,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:13:39,724 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:39,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:39,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1634477542, now seen corresponding path program 1 times [2024-11-10 22:13:39,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:39,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952314380] [2024-11-10 22:13:39,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:39,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:39,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952314380] [2024-11-10 22:13:39,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952314380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:39,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:39,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:13:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507532706] [2024-11-10 22:13:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:39,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:13:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:13:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:13:39,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2024-11-10 22:13:39,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 151 transitions, 1164 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:39,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:39,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2024-11-10 22:13:39,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:40,369 INFO L124 PetriNetUnfolderBase]: 1771/2988 cut-off events. [2024-11-10 22:13:40,370 INFO L125 PetriNetUnfolderBase]: For 7208/7211 co-relation queries the response was YES. [2024-11-10 22:13:40,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9920 conditions, 2988 events. 1771/2988 cut-off events. For 7208/7211 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 16919 event pairs, 642 based on Foata normal form. 1/2989 useless extension candidates. Maximal degree in co-relation 9894. Up to 2382 conditions per place. [2024-11-10 22:13:40,394 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 162 selfloop transitions, 17 changer transitions 0/181 dead transitions. [2024-11-10 22:13:40,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 181 transitions, 1667 flow [2024-11-10 22:13:40,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:13:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:13:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-10 22:13:40,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-11-10 22:13:40,396 INFO L175 Difference]: Start difference. First operand has 102 places, 151 transitions, 1164 flow. Second operand 4 states and 90 transitions. [2024-11-10 22:13:40,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 181 transitions, 1667 flow [2024-11-10 22:13:40,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 181 transitions, 1615 flow, removed 17 selfloop flow, removed 1 redundant places. [2024-11-10 22:13:40,422 INFO L231 Difference]: Finished difference. Result has 99 places, 115 transitions, 858 flow [2024-11-10 22:13:40,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=858, PETRI_PLACES=99, PETRI_TRANSITIONS=115} [2024-11-10 22:13:40,423 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 54 predicate places. [2024-11-10 22:13:40,423 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 115 transitions, 858 flow [2024-11-10 22:13:40,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:40,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:40,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:40,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:13:40,424 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:40,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1472945716, now seen corresponding path program 1 times [2024-11-10 22:13:40,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:40,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596419183] [2024-11-10 22:13:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:40,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:40,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:40,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596419183] [2024-11-10 22:13:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596419183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:40,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:40,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:13:40,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284899142] [2024-11-10 22:13:40,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:40,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:13:40,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:40,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:13:40,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:13:40,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:40,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 115 transitions, 858 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:40,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:40,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:40,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:41,469 INFO L124 PetriNetUnfolderBase]: 1866/3150 cut-off events. [2024-11-10 22:13:41,470 INFO L125 PetriNetUnfolderBase]: For 7380/7388 co-relation queries the response was YES. [2024-11-10 22:13:41,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10566 conditions, 3150 events. 1866/3150 cut-off events. For 7380/7388 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 17301 event pairs, 593 based on Foata normal form. 44/3194 useless extension candidates. Maximal degree in co-relation 10539. Up to 1854 conditions per place. [2024-11-10 22:13:41,487 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 134 selfloop transitions, 59 changer transitions 3/198 dead transitions. [2024-11-10 22:13:41,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 198 transitions, 1697 flow [2024-11-10 22:13:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:13:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:13:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 199 transitions. [2024-11-10 22:13:41,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3479020979020979 [2024-11-10 22:13:41,489 INFO L175 Difference]: Start difference. First operand has 99 places, 115 transitions, 858 flow. Second operand 13 states and 199 transitions. [2024-11-10 22:13:41,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 198 transitions, 1697 flow [2024-11-10 22:13:41,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 198 transitions, 1663 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:13:41,511 INFO L231 Difference]: Finished difference. Result has 116 places, 143 transitions, 1258 flow [2024-11-10 22:13:41,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1258, PETRI_PLACES=116, PETRI_TRANSITIONS=143} [2024-11-10 22:13:41,512 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 71 predicate places. [2024-11-10 22:13:41,513 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 143 transitions, 1258 flow [2024-11-10 22:13:41,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:41,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:41,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:41,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:13:41,514 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:41,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:41,514 INFO L85 PathProgramCache]: Analyzing trace with hash 853981071, now seen corresponding path program 1 times [2024-11-10 22:13:41,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:41,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057009542] [2024-11-10 22:13:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:41,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:41,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057009542] [2024-11-10 22:13:41,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057009542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:41,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:41,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:41,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387809670] [2024-11-10 22:13:41,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:41,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:41,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:41,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:41,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:41,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:41,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 143 transitions, 1258 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:41,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:41,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:41,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:42,962 INFO L124 PetriNetUnfolderBase]: 2397/4059 cut-off events. [2024-11-10 22:13:42,963 INFO L125 PetriNetUnfolderBase]: For 14716/14726 co-relation queries the response was YES. [2024-11-10 22:13:42,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15560 conditions, 4059 events. 2397/4059 cut-off events. For 14716/14726 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 23490 event pairs, 1002 based on Foata normal form. 66/4125 useless extension candidates. Maximal degree in co-relation 15527. Up to 2016 conditions per place. [2024-11-10 22:13:42,994 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 185 selfloop transitions, 113 changer transitions 8/308 dead transitions. [2024-11-10 22:13:42,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 308 transitions, 3043 flow [2024-11-10 22:13:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 22:13:42,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-10 22:13:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 306 transitions. [2024-11-10 22:13:42,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31611570247933884 [2024-11-10 22:13:42,997 INFO L175 Difference]: Start difference. First operand has 116 places, 143 transitions, 1258 flow. Second operand 22 states and 306 transitions. [2024-11-10 22:13:42,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 308 transitions, 3043 flow [2024-11-10 22:13:43,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 308 transitions, 2994 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:13:43,104 INFO L231 Difference]: Finished difference. Result has 141 places, 204 transitions, 2216 flow [2024-11-10 22:13:43,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2216, PETRI_PLACES=141, PETRI_TRANSITIONS=204} [2024-11-10 22:13:43,105 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 96 predicate places. [2024-11-10 22:13:43,106 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 204 transitions, 2216 flow [2024-11-10 22:13:43,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:43,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:43,106 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:43,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:13:43,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:43,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash -909564357, now seen corresponding path program 2 times [2024-11-10 22:13:43,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:43,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155112963] [2024-11-10 22:13:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:43,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:43,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:43,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:43,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155112963] [2024-11-10 22:13:43,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155112963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:43,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:43,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:43,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807460717] [2024-11-10 22:13:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:43,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:43,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:43,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:43,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:43,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 204 transitions, 2216 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:43,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:43,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:43,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:44,584 INFO L124 PetriNetUnfolderBase]: 3376/5733 cut-off events. [2024-11-10 22:13:44,584 INFO L125 PetriNetUnfolderBase]: For 27562/27572 co-relation queries the response was YES. [2024-11-10 22:13:44,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23873 conditions, 5733 events. 3376/5733 cut-off events. For 27562/27572 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 35672 event pairs, 1666 based on Foata normal form. 66/5799 useless extension candidates. Maximal degree in co-relation 23830. Up to 3651 conditions per place. [2024-11-10 22:13:44,643 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 293 selfloop transitions, 122 changer transitions 8/425 dead transitions. [2024-11-10 22:13:44,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 425 transitions, 5183 flow [2024-11-10 22:13:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 22:13:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 22:13:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 289 transitions. [2024-11-10 22:13:44,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32840909090909093 [2024-11-10 22:13:44,646 INFO L175 Difference]: Start difference. First operand has 141 places, 204 transitions, 2216 flow. Second operand 20 states and 289 transitions. [2024-11-10 22:13:44,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 425 transitions, 5183 flow [2024-11-10 22:13:44,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 425 transitions, 5082 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-10 22:13:44,783 INFO L231 Difference]: Finished difference. Result has 166 places, 298 transitions, 3890 flow [2024-11-10 22:13:44,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=2140, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3890, PETRI_PLACES=166, PETRI_TRANSITIONS=298} [2024-11-10 22:13:44,784 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 121 predicate places. [2024-11-10 22:13:44,784 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 298 transitions, 3890 flow [2024-11-10 22:13:44,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:44,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:44,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:44,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:13:44,785 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:44,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1033639985, now seen corresponding path program 1 times [2024-11-10 22:13:44,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:44,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771915566] [2024-11-10 22:13:44,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:44,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:45,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:45,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:45,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771915566] [2024-11-10 22:13:45,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771915566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:45,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:45,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:45,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212563074] [2024-11-10 22:13:45,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:45,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:45,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:45,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:45,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:45,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 298 transitions, 3890 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:45,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:45,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:45,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:46,264 INFO L124 PetriNetUnfolderBase]: 3749/6450 cut-off events. [2024-11-10 22:13:46,265 INFO L125 PetriNetUnfolderBase]: For 39679/39691 co-relation queries the response was YES. [2024-11-10 22:13:46,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28403 conditions, 6450 events. 3749/6450 cut-off events. For 39679/39691 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 41756 event pairs, 1852 based on Foata normal form. 110/6560 useless extension candidates. Maximal degree in co-relation 28346. Up to 4900 conditions per place. [2024-11-10 22:13:46,338 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 286 selfloop transitions, 82 changer transitions 13/383 dead transitions. [2024-11-10 22:13:46,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 383 transitions, 5371 flow [2024-11-10 22:13:46,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 22:13:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 22:13:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 194 transitions. [2024-11-10 22:13:46,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36742424242424243 [2024-11-10 22:13:46,340 INFO L175 Difference]: Start difference. First operand has 166 places, 298 transitions, 3890 flow. Second operand 12 states and 194 transitions. [2024-11-10 22:13:46,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 383 transitions, 5371 flow [2024-11-10 22:13:46,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 383 transitions, 5245 flow, removed 48 selfloop flow, removed 4 redundant places. [2024-11-10 22:13:46,617 INFO L231 Difference]: Finished difference. Result has 178 places, 308 transitions, 4168 flow [2024-11-10 22:13:46,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3784, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4168, PETRI_PLACES=178, PETRI_TRANSITIONS=308} [2024-11-10 22:13:46,618 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 133 predicate places. [2024-11-10 22:13:46,619 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 308 transitions, 4168 flow [2024-11-10 22:13:46,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:46,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:46,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:46,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:13:46,619 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:46,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:46,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2384015, now seen corresponding path program 3 times [2024-11-10 22:13:46,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:46,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637104385] [2024-11-10 22:13:46,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:46,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:47,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:47,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637104385] [2024-11-10 22:13:47,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637104385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:47,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:47,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:47,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195990833] [2024-11-10 22:13:47,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:47,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:47,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:47,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:47,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:47,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:47,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 308 transitions, 4168 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:47,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:47,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:47,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:48,693 INFO L124 PetriNetUnfolderBase]: 3793/6518 cut-off events. [2024-11-10 22:13:48,693 INFO L125 PetriNetUnfolderBase]: For 44695/44707 co-relation queries the response was YES. [2024-11-10 22:13:48,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29027 conditions, 6518 events. 3793/6518 cut-off events. For 44695/44707 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 42069 event pairs, 1833 based on Foata normal form. 68/6586 useless extension candidates. Maximal degree in co-relation 28966. Up to 3583 conditions per place. [2024-11-10 22:13:48,744 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 263 selfloop transitions, 170 changer transitions 12/447 dead transitions. [2024-11-10 22:13:48,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 447 transitions, 6272 flow [2024-11-10 22:13:48,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 22:13:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 22:13:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 293 transitions. [2024-11-10 22:13:48,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33295454545454545 [2024-11-10 22:13:48,746 INFO L175 Difference]: Start difference. First operand has 178 places, 308 transitions, 4168 flow. Second operand 20 states and 293 transitions. [2024-11-10 22:13:48,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 447 transitions, 6272 flow [2024-11-10 22:13:48,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 447 transitions, 6163 flow, removed 20 selfloop flow, removed 6 redundant places. [2024-11-10 22:13:48,963 INFO L231 Difference]: Finished difference. Result has 196 places, 337 transitions, 5028 flow [2024-11-10 22:13:48,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4064, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5028, PETRI_PLACES=196, PETRI_TRANSITIONS=337} [2024-11-10 22:13:48,963 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 151 predicate places. [2024-11-10 22:13:48,965 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 337 transitions, 5028 flow [2024-11-10 22:13:48,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:48,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:48,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:13:48,966 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:48,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:48,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1281552142, now seen corresponding path program 1 times [2024-11-10 22:13:48,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:48,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142179253] [2024-11-10 22:13:48,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:48,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:49,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:49,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142179253] [2024-11-10 22:13:49,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142179253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:49,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:49,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:13:49,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021310382] [2024-11-10 22:13:49,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:49,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:13:49,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:13:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:13:49,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:49,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 337 transitions, 5028 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:49,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:49,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:49,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:50,976 INFO L124 PetriNetUnfolderBase]: 3780/6464 cut-off events. [2024-11-10 22:13:50,976 INFO L125 PetriNetUnfolderBase]: For 52955/52965 co-relation queries the response was YES. [2024-11-10 22:13:51,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30905 conditions, 6464 events. 3780/6464 cut-off events. For 52955/52965 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 41165 event pairs, 994 based on Foata normal form. 43/6507 useless extension candidates. Maximal degree in co-relation 30839. Up to 3062 conditions per place. [2024-11-10 22:13:51,126 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 299 selfloop transitions, 135 changer transitions 15/451 dead transitions. [2024-11-10 22:13:51,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 451 transitions, 7078 flow [2024-11-10 22:13:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 22:13:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 22:13:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 198 transitions. [2024-11-10 22:13:51,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34615384615384615 [2024-11-10 22:13:51,129 INFO L175 Difference]: Start difference. First operand has 196 places, 337 transitions, 5028 flow. Second operand 13 states and 198 transitions. [2024-11-10 22:13:51,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 451 transitions, 7078 flow [2024-11-10 22:13:51,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 451 transitions, 6686 flow, removed 79 selfloop flow, removed 15 redundant places. [2024-11-10 22:13:51,536 INFO L231 Difference]: Finished difference. Result has 200 places, 385 transitions, 5792 flow [2024-11-10 22:13:51,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4692, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5792, PETRI_PLACES=200, PETRI_TRANSITIONS=385} [2024-11-10 22:13:51,538 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 155 predicate places. [2024-11-10 22:13:51,538 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 385 transitions, 5792 flow [2024-11-10 22:13:51,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:51,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:51,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:51,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:13:51,539 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:51,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1479033167, now seen corresponding path program 2 times [2024-11-10 22:13:51,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:51,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168762991] [2024-11-10 22:13:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:51,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:51,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:51,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168762991] [2024-11-10 22:13:51,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168762991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:51,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:51,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:51,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371863021] [2024-11-10 22:13:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:51,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:51,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:51,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:51,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:51,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:51,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 385 transitions, 5792 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:51,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:51,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:51,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:53,659 INFO L124 PetriNetUnfolderBase]: 4337/7524 cut-off events. [2024-11-10 22:13:53,659 INFO L125 PetriNetUnfolderBase]: For 83275/83285 co-relation queries the response was YES. [2024-11-10 22:13:53,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38546 conditions, 7524 events. 4337/7524 cut-off events. For 83275/83285 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 50612 event pairs, 2038 based on Foata normal form. 134/7658 useless extension candidates. Maximal degree in co-relation 38478. Up to 4773 conditions per place. [2024-11-10 22:13:53,834 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 283 selfloop transitions, 194 changer transitions 20/499 dead transitions. [2024-11-10 22:13:53,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 499 transitions, 7737 flow [2024-11-10 22:13:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 22:13:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-10 22:13:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 279 transitions. [2024-11-10 22:13:53,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33373205741626794 [2024-11-10 22:13:53,840 INFO L175 Difference]: Start difference. First operand has 200 places, 385 transitions, 5792 flow. Second operand 19 states and 279 transitions. [2024-11-10 22:13:53,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 499 transitions, 7737 flow [2024-11-10 22:13:54,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 499 transitions, 7595 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-11-10 22:13:54,243 INFO L231 Difference]: Finished difference. Result has 218 places, 393 transitions, 6306 flow [2024-11-10 22:13:54,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5672, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6306, PETRI_PLACES=218, PETRI_TRANSITIONS=393} [2024-11-10 22:13:54,244 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2024-11-10 22:13:54,245 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 393 transitions, 6306 flow [2024-11-10 22:13:54,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:54,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:54,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:54,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:13:54,245 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:54,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1754128554, now seen corresponding path program 2 times [2024-11-10 22:13:54,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:54,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885994503] [2024-11-10 22:13:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:54,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:54,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:54,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:54,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885994503] [2024-11-10 22:13:54,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885994503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:54,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:54,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:13:54,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594599712] [2024-11-10 22:13:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:54,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:13:54,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:54,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:13:54,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:13:54,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:54,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 393 transitions, 6306 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:54,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:54,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:54,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:56,144 INFO L124 PetriNetUnfolderBase]: 4263/7339 cut-off events. [2024-11-10 22:13:56,145 INFO L125 PetriNetUnfolderBase]: For 87504/87514 co-relation queries the response was YES. [2024-11-10 22:13:56,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38793 conditions, 7339 events. 4263/7339 cut-off events. For 87504/87514 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 48704 event pairs, 1395 based on Foata normal form. 44/7383 useless extension candidates. Maximal degree in co-relation 38719. Up to 4298 conditions per place. [2024-11-10 22:13:56,208 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 281 selfloop transitions, 213 changer transitions 5/501 dead transitions. [2024-11-10 22:13:56,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 501 transitions, 8449 flow [2024-11-10 22:13:56,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:13:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:13:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 222 transitions. [2024-11-10 22:13:56,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33636363636363636 [2024-11-10 22:13:56,210 INFO L175 Difference]: Start difference. First operand has 218 places, 393 transitions, 6306 flow. Second operand 15 states and 222 transitions. [2024-11-10 22:13:56,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 501 transitions, 8449 flow [2024-11-10 22:13:56,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 501 transitions, 8345 flow, removed 19 selfloop flow, removed 9 redundant places. [2024-11-10 22:13:56,760 INFO L231 Difference]: Finished difference. Result has 229 places, 445 transitions, 7625 flow [2024-11-10 22:13:56,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=6207, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7625, PETRI_PLACES=229, PETRI_TRANSITIONS=445} [2024-11-10 22:13:56,761 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 184 predicate places. [2024-11-10 22:13:56,761 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 445 transitions, 7625 flow [2024-11-10 22:13:56,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:56,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:13:56,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:13:56,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:13:56,762 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:13:56,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:13:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash 568880881, now seen corresponding path program 3 times [2024-11-10 22:13:56,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:13:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025982874] [2024-11-10 22:13:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:13:56,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:13:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:13:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:13:57,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:13:57,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025982874] [2024-11-10 22:13:57,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025982874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:13:57,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:13:57,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:13:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741009008] [2024-11-10 22:13:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:13:57,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:13:57,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:13:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:13:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:13:57,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:13:57,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 445 transitions, 7625 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:13:57,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:13:57,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:13:57,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:13:59,120 INFO L124 PetriNetUnfolderBase]: 4636/8074 cut-off events. [2024-11-10 22:13:59,121 INFO L125 PetriNetUnfolderBase]: For 117230/117240 co-relation queries the response was YES. [2024-11-10 22:13:59,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44377 conditions, 8074 events. 4636/8074 cut-off events. For 117230/117240 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 55348 event pairs, 2198 based on Foata normal form. 134/8208 useless extension candidates. Maximal degree in co-relation 44298. Up to 5083 conditions per place. [2024-11-10 22:13:59,222 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 349 selfloop transitions, 166 changer transitions 18/535 dead transitions. [2024-11-10 22:13:59,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 535 transitions, 9488 flow [2024-11-10 22:13:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:13:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:13:59,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 225 transitions. [2024-11-10 22:13:59,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2024-11-10 22:13:59,227 INFO L175 Difference]: Start difference. First operand has 229 places, 445 transitions, 7625 flow. Second operand 15 states and 225 transitions. [2024-11-10 22:13:59,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 535 transitions, 9488 flow [2024-11-10 22:14:00,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 535 transitions, 9303 flow, removed 65 selfloop flow, removed 4 redundant places. [2024-11-10 22:14:00,023 INFO L231 Difference]: Finished difference. Result has 242 places, 447 transitions, 7889 flow [2024-11-10 22:14:00,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7447, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7889, PETRI_PLACES=242, PETRI_TRANSITIONS=447} [2024-11-10 22:14:00,024 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 197 predicate places. [2024-11-10 22:14:00,024 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 447 transitions, 7889 flow [2024-11-10 22:14:00,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:00,024 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:00,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:00,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:14:00,025 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:14:00,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1955269944, now seen corresponding path program 2 times [2024-11-10 22:14:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:00,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201160341] [2024-11-10 22:14:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:00,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:00,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:00,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201160341] [2024-11-10 22:14:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201160341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:00,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:00,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:14:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228921844] [2024-11-10 22:14:00,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:00,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:14:00,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:14:00,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:14:00,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:14:00,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 447 transitions, 7889 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:00,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:00,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:14:00,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:02,628 INFO L124 PetriNetUnfolderBase]: 4551/7867 cut-off events. [2024-11-10 22:14:02,629 INFO L125 PetriNetUnfolderBase]: For 118584/118594 co-relation queries the response was YES. [2024-11-10 22:14:02,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43941 conditions, 7867 events. 4551/7867 cut-off events. For 118584/118594 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 53091 event pairs, 1512 based on Foata normal form. 43/7910 useless extension candidates. Maximal degree in co-relation 43858. Up to 4361 conditions per place. [2024-11-10 22:14:02,703 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 351 selfloop transitions, 185 changer transitions 7/545 dead transitions. [2024-11-10 22:14:02,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 545 transitions, 10048 flow [2024-11-10 22:14:02,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:14:02,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:14:02,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 221 transitions. [2024-11-10 22:14:02,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33484848484848484 [2024-11-10 22:14:02,705 INFO L175 Difference]: Start difference. First operand has 242 places, 447 transitions, 7889 flow. Second operand 15 states and 221 transitions. [2024-11-10 22:14:02,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 545 transitions, 10048 flow [2024-11-10 22:14:03,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 545 transitions, 9797 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-11-10 22:14:03,285 INFO L231 Difference]: Finished difference. Result has 251 places, 485 transitions, 8844 flow [2024-11-10 22:14:03,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7672, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8844, PETRI_PLACES=251, PETRI_TRANSITIONS=485} [2024-11-10 22:14:03,286 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 206 predicate places. [2024-11-10 22:14:03,286 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 485 transitions, 8844 flow [2024-11-10 22:14:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:03,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:03,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:03,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:14:03,287 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:14:03,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:03,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1790672005, now seen corresponding path program 1 times [2024-11-10 22:14:03,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:03,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427605965] [2024-11-10 22:14:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:03,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:03,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:03,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427605965] [2024-11-10 22:14:03,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427605965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:03,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:03,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:14:03,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647663308] [2024-11-10 22:14:03,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:03,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:14:03,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:14:03,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:14:03,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:14:03,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 485 transitions, 8844 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:03,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:03,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:14:03,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:07,457 INFO L124 PetriNetUnfolderBase]: 8556/15450 cut-off events. [2024-11-10 22:14:07,457 INFO L125 PetriNetUnfolderBase]: For 266050/266060 co-relation queries the response was YES. [2024-11-10 22:14:07,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81841 conditions, 15450 events. 8556/15450 cut-off events. For 266050/266060 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 127396 event pairs, 2634 based on Foata normal form. 236/15686 useless extension candidates. Maximal degree in co-relation 81753. Up to 4829 conditions per place. [2024-11-10 22:14:07,643 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 604 selfloop transitions, 96 changer transitions 10/712 dead transitions. [2024-11-10 22:14:07,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 712 transitions, 13214 flow [2024-11-10 22:14:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:14:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:14:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 220 transitions. [2024-11-10 22:14:07,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-11-10 22:14:07,645 INFO L175 Difference]: Start difference. First operand has 251 places, 485 transitions, 8844 flow. Second operand 11 states and 220 transitions. [2024-11-10 22:14:07,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 712 transitions, 13214 flow [2024-11-10 22:14:08,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 712 transitions, 12903 flow, removed 76 selfloop flow, removed 5 redundant places. [2024-11-10 22:14:08,992 INFO L231 Difference]: Finished difference. Result has 261 places, 522 transitions, 9573 flow [2024-11-10 22:14:08,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=8645, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9573, PETRI_PLACES=261, PETRI_TRANSITIONS=522} [2024-11-10 22:14:08,993 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 216 predicate places. [2024-11-10 22:14:08,994 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 522 transitions, 9573 flow [2024-11-10 22:14:08,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:08,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:08,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:08,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:14:08,994 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:14:08,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:08,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1067273229, now seen corresponding path program 1 times [2024-11-10 22:14:08,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:08,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790847362] [2024-11-10 22:14:08,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:08,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:09,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:09,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:09,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790847362] [2024-11-10 22:14:09,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790847362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:09,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:09,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:14:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011416156] [2024-11-10 22:14:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:09,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:14:09,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:14:09,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:14:09,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:14:09,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 522 transitions, 9573 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:09,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:09,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:14:09,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:16,097 INFO L124 PetriNetUnfolderBase]: 15284/28149 cut-off events. [2024-11-10 22:14:16,097 INFO L125 PetriNetUnfolderBase]: For 558981/558991 co-relation queries the response was YES. [2024-11-10 22:14:16,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160888 conditions, 28149 events. 15284/28149 cut-off events. For 558981/558991 co-relation queries the response was YES. Maximal size of possible extension queue 1861. Compared 262996 event pairs, 5738 based on Foata normal form. 563/28712 useless extension candidates. Maximal degree in co-relation 160795. Up to 11534 conditions per place. [2024-11-10 22:14:16,714 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 661 selfloop transitions, 129 changer transitions 25/817 dead transitions. [2024-11-10 22:14:16,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 817 transitions, 15534 flow [2024-11-10 22:14:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:14:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:14:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2024-11-10 22:14:16,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2024-11-10 22:14:16,717 INFO L175 Difference]: Start difference. First operand has 261 places, 522 transitions, 9573 flow. Second operand 11 states and 227 transitions. [2024-11-10 22:14:16,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 817 transitions, 15534 flow [2024-11-10 22:14:20,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 817 transitions, 15260 flow, removed 121 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:20,124 INFO L231 Difference]: Finished difference. Result has 273 places, 575 transitions, 10993 flow [2024-11-10 22:14:20,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=9484, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10993, PETRI_PLACES=273, PETRI_TRANSITIONS=575} [2024-11-10 22:14:20,125 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 228 predicate places. [2024-11-10 22:14:20,125 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 575 transitions, 10993 flow [2024-11-10 22:14:20,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:20,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:20,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:20,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:14:20,127 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:14:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:20,128 INFO L85 PathProgramCache]: Analyzing trace with hash -642760927, now seen corresponding path program 2 times [2024-11-10 22:14:20,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:20,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92475678] [2024-11-10 22:14:20,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:20,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:20,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:20,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92475678] [2024-11-10 22:14:20,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92475678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:20,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:20,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:14:20,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264564023] [2024-11-10 22:14:20,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:20,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:14:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:20,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:14:20,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:14:20,707 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:14:20,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 575 transitions, 10993 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:20,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:20,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:14:20,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:14:28,551 INFO L124 PetriNetUnfolderBase]: 16809/31236 cut-off events. [2024-11-10 22:14:28,552 INFO L125 PetriNetUnfolderBase]: For 726829/726839 co-relation queries the response was YES. [2024-11-10 22:14:29,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194546 conditions, 31236 events. 16809/31236 cut-off events. For 726829/726839 co-relation queries the response was YES. Maximal size of possible extension queue 2094. Compared 299133 event pairs, 7323 based on Foata normal form. 378/31614 useless extension candidates. Maximal degree in co-relation 194448. Up to 16864 conditions per place. [2024-11-10 22:14:29,226 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 699 selfloop transitions, 120 changer transitions 21/842 dead transitions. [2024-11-10 22:14:29,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 842 transitions, 16948 flow [2024-11-10 22:14:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:14:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:14:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-10 22:14:29,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4727272727272727 [2024-11-10 22:14:29,228 INFO L175 Difference]: Start difference. First operand has 273 places, 575 transitions, 10993 flow. Second operand 10 states and 208 transitions. [2024-11-10 22:14:29,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 842 transitions, 16948 flow [2024-11-10 22:14:33,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 842 transitions, 16783 flow, removed 58 selfloop flow, removed 3 redundant places. [2024-11-10 22:14:33,069 INFO L231 Difference]: Finished difference. Result has 284 places, 621 transitions, 12345 flow [2024-11-10 22:14:33,070 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=10928, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12345, PETRI_PLACES=284, PETRI_TRANSITIONS=621} [2024-11-10 22:14:33,070 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 239 predicate places. [2024-11-10 22:14:33,071 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 621 transitions, 12345 flow [2024-11-10 22:14:33,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:33,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:14:33,071 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:14:33,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:14:33,071 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-10 22:14:33,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:14:33,072 INFO L85 PathProgramCache]: Analyzing trace with hash 105878685, now seen corresponding path program 3 times [2024-11-10 22:14:33,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:14:33,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490722295] [2024-11-10 22:14:33,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:14:33,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:14:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:14:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:14:33,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:14:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490722295] [2024-11-10 22:14:33,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490722295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:14:33,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:14:33,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 22:14:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109880042] [2024-11-10 22:14:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:14:33,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:14:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:14:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:14:33,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:14:33,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-11-10 22:14:33,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 621 transitions, 12345 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:14:33,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:14:33,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-11-10 22:14:33,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand