./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:50:19,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:50:19,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:50:19,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:50:19,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:50:19,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:50:19,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:50:19,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:50:19,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:50:19,696 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:50:19,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:50:19,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:50:19,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:50:19,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:50:19,697 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:50:19,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:50:19,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:50:19,698 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:50:19,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:50:19,699 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:50:19,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:50:19,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:50:19,700 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:50:19,701 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:50:19,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:50:19,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:50:19,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:50:19,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:50:19,703 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2025-01-10 06:50:20,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:50:20,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:50:20,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:50:20,043 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:50:20,043 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:50:20,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-01-10 06:50:21,418 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346a519ad/c027d44b4b4149c9a61e62e92b37cea2/FLAG6c06e2301 [2025-01-10 06:50:21,751 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:50:21,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-01-10 06:50:21,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346a519ad/c027d44b4b4149c9a61e62e92b37cea2/FLAG6c06e2301 [2025-01-10 06:50:21,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346a519ad/c027d44b4b4149c9a61e62e92b37cea2 [2025-01-10 06:50:21,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:50:21,787 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:50:21,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:50:21,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:50:21,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:50:21,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:50:21" (1/1) ... [2025-01-10 06:50:21,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116e09af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:21, skipping insertion in model container [2025-01-10 06:50:21,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:50:21" (1/1) ... [2025-01-10 06:50:21,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:50:21,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:50:22,004 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:50:22,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:50:22,053 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:50:22,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22 WrapperNode [2025-01-10 06:50:22,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:50:22,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:50:22,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:50:22,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:50:22,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,104 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 491 [2025-01-10 06:50:22,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:50:22,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:50:22,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:50:22,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:50:22,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,150 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-01-10 06:50:22,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,164 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:50:22,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:50:22,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:50:22,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:50:22,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (1/1) ... [2025-01-10 06:50:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:50:22,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:22,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:50:22,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 06:50:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 06:50:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:50:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:50:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:50:22,264 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:50:22,370 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:50:22,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:50:23,145 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:50:23,145 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:50:23,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:50:23,660 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-10 06:50:23,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:50:23 BoogieIcfgContainer [2025-01-10 06:50:23,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:50:23,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:50:23,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:50:23,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:50:23,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:50:21" (1/3) ... [2025-01-10 06:50:23,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4f4826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:50:23, skipping insertion in model container [2025-01-10 06:50:23,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:22" (2/3) ... [2025-01-10 06:50:23,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4f4826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:50:23, skipping insertion in model container [2025-01-10 06:50:23,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:50:23" (3/3) ... [2025-01-10 06:50:23,671 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2025-01-10 06:50:23,688 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:50:23,689 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-symm.wvr.c that has 3 procedures, 144 locations, 1 initial locations, 4 loop locations, and 42 error locations. [2025-01-10 06:50:23,690 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:50:23,824 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 06:50:23,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 169 transitions, 352 flow [2025-01-10 06:50:23,959 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2025-01-10 06:50:23,961 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 06:50:23,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 26/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 830 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2025-01-10 06:50:23,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 169 transitions, 352 flow [2025-01-10 06:50:23,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 166 transitions, 344 flow [2025-01-10 06:50:23,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:50:23,996 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;@48da14c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:50:23,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2025-01-10 06:50:24,002 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:50:24,003 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:50:24,003 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:50:24,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:24,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:50:24,004 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:24,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1495677, now seen corresponding path program 1 times [2025-01-10 06:50:24,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:24,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217828199] [2025-01-10 06:50:24,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:24,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:24,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:50:24,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:50:24,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:24,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:24,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:24,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217828199] [2025-01-10 06:50:24,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217828199] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:24,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:24,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:24,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309818750] [2025-01-10 06:50:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:24,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:24,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:24,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:24,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:24,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:24,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:24,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:24,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:24,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:25,464 INFO L124 PetriNetUnfolderBase]: 2890/6519 cut-off events. [2025-01-10 06:50:25,464 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-01-10 06:50:25,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 6519 events. 2890/6519 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 58790 event pairs, 1812 based on Foata normal form. 4/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4183 conditions per place. [2025-01-10 06:50:25,520 INFO L140 encePairwiseOnDemand]: 154/169 looper letters, 79 selfloop transitions, 7 changer transitions 2/168 dead transitions. [2025-01-10 06:50:25,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 522 flow [2025-01-10 06:50:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2025-01-10 06:50:25,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2025-01-10 06:50:25,542 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 344 flow. Second operand 4 states and 427 transitions. [2025-01-10 06:50:25,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 522 flow [2025-01-10 06:50:25,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 06:50:25,561 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 383 flow [2025-01-10 06:50:25,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2025-01-10 06:50:25,568 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2025-01-10 06:50:25,568 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 383 flow [2025-01-10 06:50:25,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:25,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:25,569 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:50:25,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:50:25,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:25,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:25,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1609560249, now seen corresponding path program 1 times [2025-01-10 06:50:25,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:25,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002428798] [2025-01-10 06:50:25,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:25,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:25,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:50:25,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:50:25,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:25,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002428798] [2025-01-10 06:50:25,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002428798] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:50:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506902591] [2025-01-10 06:50:25,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:25,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:25,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:25,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:50:25,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 06:50:25,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:50:25,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:50:25,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:25,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:25,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:50:25,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:50:25,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:25,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:50:25,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506902591] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:25,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:50:25,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:50:25,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677664088] [2025-01-10 06:50:25,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:25,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:50:25,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:25,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:50:25,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:50:26,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:26,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:26,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:26,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:26,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:26,839 INFO L124 PetriNetUnfolderBase]: 2890/6515 cut-off events. [2025-01-10 06:50:26,840 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-01-10 06:50:26,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10750 conditions, 6515 events. 2890/6515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 58697 event pairs, 1812 based on Foata normal form. 2/5186 useless extension candidates. Maximal degree in co-relation 10700. Up to 4172 conditions per place. [2025-01-10 06:50:26,891 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 72 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2025-01-10 06:50:26,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 543 flow [2025-01-10 06:50:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:50:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:50:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2025-01-10 06:50:26,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5759368836291914 [2025-01-10 06:50:26,897 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 383 flow. Second operand 6 states and 584 transitions. [2025-01-10 06:50:26,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 543 flow [2025-01-10 06:50:26,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 164 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:50:26,904 INFO L231 Difference]: Finished difference. Result has 148 places, 164 transitions, 399 flow [2025-01-10 06:50:26,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=148, PETRI_TRANSITIONS=164} [2025-01-10 06:50:26,905 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2025-01-10 06:50:26,905 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 164 transitions, 399 flow [2025-01-10 06:50:26,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:26,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:26,907 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:50:26,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 06:50:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:27,108 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:27,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1643238302, now seen corresponding path program 1 times [2025-01-10 06:50:27,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:27,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110166601] [2025-01-10 06:50:27,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:27,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:50:27,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:50:27,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:27,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:27,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:27,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:27,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110166601] [2025-01-10 06:50:27,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110166601] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:50:27,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410032648] [2025-01-10 06:50:27,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:27,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:27,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:27,278 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:50:27,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 06:50:27,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:50:27,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:50:27,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:27,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:27,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:50:27,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:50:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:27,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:50:27,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410032648] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:50:27,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:50:27,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-01-10 06:50:27,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951164030] [2025-01-10 06:50:27,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:50:27,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:50:27,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:27,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:50:27,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:50:27,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:27,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 164 transitions, 399 flow. Second operand has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:27,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:27,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:27,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:28,360 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2025-01-10 06:50:28,360 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-01-10 06:50:28,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 58929 event pairs, 1812 based on Foata normal form. 6/5213 useless extension candidates. Maximal degree in co-relation 10702. Up to 4183 conditions per place. [2025-01-10 06:50:28,416 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 77 selfloop transitions, 25 changer transitions 0/182 dead transitions. [2025-01-10 06:50:28,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 717 flow [2025-01-10 06:50:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 06:50:28,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 06:50:28,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 938 transitions. [2025-01-10 06:50:28,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5550295857988166 [2025-01-10 06:50:28,425 INFO L175 Difference]: Start difference. First operand has 148 places, 164 transitions, 399 flow. Second operand 10 states and 938 transitions. [2025-01-10 06:50:28,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 717 flow [2025-01-10 06:50:28,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 182 transitions, 659 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-01-10 06:50:28,432 INFO L231 Difference]: Finished difference. Result has 155 places, 182 transitions, 539 flow [2025-01-10 06:50:28,436 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=155, PETRI_TRANSITIONS=182} [2025-01-10 06:50:28,436 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2025-01-10 06:50:28,437 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 182 transitions, 539 flow [2025-01-10 06:50:28,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:28,438 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:28,438 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:28,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 06:50:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:28,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:28,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash -253628039, now seen corresponding path program 1 times [2025-01-10 06:50:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609381701] [2025-01-10 06:50:28,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:28,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:28,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:50:28,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:50:28,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:28,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:28,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609381701] [2025-01-10 06:50:28,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609381701] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:28,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:28,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:28,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739312880] [2025-01-10 06:50:28,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:28,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:50:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:28,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:50:28,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:50:28,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 169 [2025-01-10 06:50:28,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 182 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:28,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:28,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 169 [2025-01-10 06:50:28,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:29,464 INFO L124 PetriNetUnfolderBase]: 2894/6537 cut-off events. [2025-01-10 06:50:29,465 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2025-01-10 06:50:29,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10849 conditions, 6537 events. 2894/6537 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 58736 event pairs, 1812 based on Foata normal form. 2/5209 useless extension candidates. Maximal degree in co-relation 10782. Up to 4192 conditions per place. [2025-01-10 06:50:29,510 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 91 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2025-01-10 06:50:29,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 180 transitions, 725 flow [2025-01-10 06:50:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:50:29,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:50:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2025-01-10 06:50:29,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6765285996055227 [2025-01-10 06:50:29,516 INFO L175 Difference]: Start difference. First operand has 155 places, 182 transitions, 539 flow. Second operand 3 states and 343 transitions. [2025-01-10 06:50:29,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 180 transitions, 725 flow [2025-01-10 06:50:29,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 180 transitions, 695 flow, removed 6 selfloop flow, removed 3 redundant places. [2025-01-10 06:50:29,525 INFO L231 Difference]: Finished difference. Result has 154 places, 180 transitions, 513 flow [2025-01-10 06:50:29,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=154, PETRI_TRANSITIONS=180} [2025-01-10 06:50:29,526 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2025-01-10 06:50:29,528 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 180 transitions, 513 flow [2025-01-10 06:50:29,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:29,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:29,529 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-01-10 06:50:29,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:50:29,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:29,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1890252318, now seen corresponding path program 2 times [2025-01-10 06:50:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:29,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938683082] [2025-01-10 06:50:29,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:50:29,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:29,547 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-10 06:50:29,557 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-01-10 06:50:29,559 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:50:29,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:29,625 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:50:29,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938683082] [2025-01-10 06:50:29,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938683082] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:50:29,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079682768] [2025-01-10 06:50:29,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:50:29,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:29,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:50:29,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 06:50:29,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-10 06:50:29,728 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-01-10 06:50:29,728 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:50:29,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:29,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:50:29,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:50:29,761 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:50:29,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:50:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:50:29,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079682768] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:50:29,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:50:29,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-01-10 06:50:29,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192940067] [2025-01-10 06:50:29,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:50:29,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 06:50:29,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:29,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 06:50:29,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-10 06:50:29,814 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:29,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 180 transitions, 513 flow. Second operand has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:29,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:29,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:29,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:30,431 INFO L124 PetriNetUnfolderBase]: 2894/6535 cut-off events. [2025-01-10 06:50:30,432 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2025-01-10 06:50:30,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10829 conditions, 6535 events. 2894/6535 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 58740 event pairs, 1812 based on Foata normal form. 2/5208 useless extension candidates. Maximal degree in co-relation 10774. Up to 4174 conditions per place. [2025-01-10 06:50:30,470 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 73 selfloop transitions, 25 changer transitions 0/178 dead transitions. [2025-01-10 06:50:30,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 178 transitions, 689 flow [2025-01-10 06:50:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2025-01-10 06:50:30,473 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.606508875739645 [2025-01-10 06:50:30,474 INFO L175 Difference]: Start difference. First operand has 154 places, 180 transitions, 513 flow. Second operand 4 states and 410 transitions. [2025-01-10 06:50:30,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 178 transitions, 689 flow [2025-01-10 06:50:30,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 178 transitions, 655 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-01-10 06:50:30,479 INFO L231 Difference]: Finished difference. Result has 149 places, 178 transitions, 509 flow [2025-01-10 06:50:30,479 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=178} [2025-01-10 06:50:30,480 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 2 predicate places. [2025-01-10 06:50:30,480 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 178 transitions, 509 flow [2025-01-10 06:50:30,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:30,480 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:30,480 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:30,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 06:50:30,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:30,683 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:30,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:30,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2103936170, now seen corresponding path program 1 times [2025-01-10 06:50:30,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:30,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397655505] [2025-01-10 06:50:30,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:30,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:30,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:50:30,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:50:30,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:30,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:50:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397655505] [2025-01-10 06:50:30,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397655505] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:30,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:30,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438608151] [2025-01-10 06:50:30,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:30,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:30,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:30,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:30,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:50:30,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 178 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:30,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:30,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:50:30,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:31,618 INFO L124 PetriNetUnfolderBase]: 4486/9423 cut-off events. [2025-01-10 06:50:31,618 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2025-01-10 06:50:31,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16155 conditions, 9423 events. 4486/9423 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 84613 event pairs, 1724 based on Foata normal form. 224/7784 useless extension candidates. Maximal degree in co-relation 16011. Up to 4017 conditions per place. [2025-01-10 06:50:31,674 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 176 selfloop transitions, 10 changer transitions 0/254 dead transitions. [2025-01-10 06:50:31,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 254 transitions, 1035 flow [2025-01-10 06:50:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2025-01-10 06:50:31,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6952662721893491 [2025-01-10 06:50:31,677 INFO L175 Difference]: Start difference. First operand has 149 places, 178 transitions, 509 flow. Second operand 4 states and 470 transitions. [2025-01-10 06:50:31,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 254 transitions, 1035 flow [2025-01-10 06:50:31,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 254 transitions, 985 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:50:31,682 INFO L231 Difference]: Finished difference. Result has 150 places, 182 transitions, 527 flow [2025-01-10 06:50:31,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=527, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2025-01-10 06:50:31,684 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 3 predicate places. [2025-01-10 06:50:31,685 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 527 flow [2025-01-10 06:50:31,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:31,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:31,686 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:31,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:50:31,686 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:31,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2102919303, now seen corresponding path program 1 times [2025-01-10 06:50:31,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:31,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435628405] [2025-01-10 06:50:31,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:31,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:31,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:50:31,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:50:31,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:31,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:50:31,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:31,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435628405] [2025-01-10 06:50:31,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435628405] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:31,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:31,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663811119] [2025-01-10 06:50:31,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:31,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:50:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:31,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:50:31,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:50:31,781 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:31,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:31,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:31,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:31,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:32,821 INFO L124 PetriNetUnfolderBase]: 6063/13055 cut-off events. [2025-01-10 06:50:32,821 INFO L125 PetriNetUnfolderBase]: For 1751/1839 co-relation queries the response was YES. [2025-01-10 06:50:32,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24124 conditions, 13055 events. 6063/13055 cut-off events. For 1751/1839 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 120350 event pairs, 2691 based on Foata normal form. 157/11435 useless extension candidates. Maximal degree in co-relation 24003. Up to 5640 conditions per place. [2025-01-10 06:50:32,913 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2025-01-10 06:50:32,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 240 transitions, 991 flow [2025-01-10 06:50:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:50:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:50:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2025-01-10 06:50:32,916 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2025-01-10 06:50:32,916 INFO L175 Difference]: Start difference. First operand has 150 places, 182 transitions, 527 flow. Second operand 3 states and 389 transitions. [2025-01-10 06:50:32,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 240 transitions, 991 flow [2025-01-10 06:50:32,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 240 transitions, 991 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:50:32,965 INFO L231 Difference]: Finished difference. Result has 153 places, 183 transitions, 545 flow [2025-01-10 06:50:32,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=153, PETRI_TRANSITIONS=183} [2025-01-10 06:50:32,967 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2025-01-10 06:50:32,967 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 183 transitions, 545 flow [2025-01-10 06:50:32,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:32,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:32,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:32,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:50:32,968 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:32,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:32,968 INFO L85 PathProgramCache]: Analyzing trace with hash -797510164, now seen corresponding path program 1 times [2025-01-10 06:50:32,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:32,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99635807] [2025-01-10 06:50:32,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:32,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:32,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:50:32,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:50:32,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:32,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:50:33,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99635807] [2025-01-10 06:50:33,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99635807] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:50:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168371929] [2025-01-10 06:50:33,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:33,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:33,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:33,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:50:33,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 06:50:33,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:50:33,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:50:33,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:33,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:33,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:50:33,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:50:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:50:33,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:50:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:50:33,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168371929] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:50:33,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:50:33,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-01-10 06:50:33,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190392572] [2025-01-10 06:50:33,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:50:33,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 06:50:33,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:33,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 06:50:33,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-01-10 06:50:33,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:33,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 183 transitions, 545 flow. Second operand has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:33,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:33,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:33,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:34,365 INFO L124 PetriNetUnfolderBase]: 5447/12736 cut-off events. [2025-01-10 06:50:34,365 INFO L125 PetriNetUnfolderBase]: For 2047/2189 co-relation queries the response was YES. [2025-01-10 06:50:34,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22965 conditions, 12736 events. 5447/12736 cut-off events. For 2047/2189 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 124754 event pairs, 3559 based on Foata normal form. 79/10765 useless extension candidates. Maximal degree in co-relation 22854. Up to 7902 conditions per place. [2025-01-10 06:50:34,427 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 21 changer transitions 0/179 dead transitions. [2025-01-10 06:50:34,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 179 transitions, 723 flow [2025-01-10 06:50:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:50:34,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:50:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 671 transitions. [2025-01-10 06:50:34,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5672020287404903 [2025-01-10 06:50:34,431 INFO L175 Difference]: Start difference. First operand has 153 places, 183 transitions, 545 flow. Second operand 7 states and 671 transitions. [2025-01-10 06:50:34,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 179 transitions, 723 flow [2025-01-10 06:50:34,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 179 transitions, 721 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:50:34,449 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 565 flow [2025-01-10 06:50:34,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=565, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2025-01-10 06:50:34,452 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2025-01-10 06:50:34,452 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 565 flow [2025-01-10 06:50:34,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:34,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:34,453 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:34,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:50:34,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-10 06:50:34,654 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2089666100, now seen corresponding path program 2 times [2025-01-10 06:50:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:34,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658987322] [2025-01-10 06:50:34,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:50:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:34,669 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-01-10 06:50:34,676 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 29 statements. [2025-01-10 06:50:34,677 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:50:34,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-10 06:50:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:34,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658987322] [2025-01-10 06:50:34,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658987322] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:34,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:34,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168813464] [2025-01-10 06:50:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:34,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:34,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:34,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:34,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-01-10 06:50:34,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:34,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:34,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-01-10 06:50:34,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:35,642 INFO L124 PetriNetUnfolderBase]: 6293/14328 cut-off events. [2025-01-10 06:50:35,642 INFO L125 PetriNetUnfolderBase]: For 2312/2354 co-relation queries the response was YES. [2025-01-10 06:50:35,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26251 conditions, 14328 events. 6293/14328 cut-off events. For 2312/2354 co-relation queries the response was YES. Maximal size of possible extension queue 669. Compared 139502 event pairs, 3226 based on Foata normal form. 42/12083 useless extension candidates. Maximal degree in co-relation 26122. Up to 7089 conditions per place. [2025-01-10 06:50:35,703 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 132 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2025-01-10 06:50:35,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 918 flow [2025-01-10 06:50:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:35,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2025-01-10 06:50:35,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523668639053254 [2025-01-10 06:50:35,705 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 565 flow. Second operand 4 states and 441 transitions. [2025-01-10 06:50:35,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 918 flow [2025-01-10 06:50:35,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 215 transitions, 901 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 06:50:35,725 INFO L231 Difference]: Finished difference. Result has 157 places, 179 transitions, 572 flow [2025-01-10 06:50:35,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=572, PETRI_PLACES=157, PETRI_TRANSITIONS=179} [2025-01-10 06:50:35,726 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2025-01-10 06:50:35,726 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 179 transitions, 572 flow [2025-01-10 06:50:35,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:35,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:35,726 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:35,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:50:35,726 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:35,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:35,727 INFO L85 PathProgramCache]: Analyzing trace with hash -355169759, now seen corresponding path program 1 times [2025-01-10 06:50:35,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:35,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868343440] [2025-01-10 06:50:35,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:35,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 06:50:35,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:50:35,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:35,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:36,017 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:50:36,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:36,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868343440] [2025-01-10 06:50:36,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868343440] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:50:36,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393621073] [2025-01-10 06:50:36,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:36,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:50:36,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:50:36,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:50:36,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 06:50:36,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 06:50:36,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:50:36,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:36,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:36,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 06:50:36,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:50:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:50:36,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:50:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:50:36,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393621073] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:50:36,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:50:36,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2025-01-10 06:50:36,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773257053] [2025-01-10 06:50:36,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:50:36,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 06:50:36,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:36,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 06:50:36,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-01-10 06:50:36,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:36,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 179 transitions, 572 flow. Second operand has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:36,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:36,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:36,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:38,030 INFO L124 PetriNetUnfolderBase]: 5757/13572 cut-off events. [2025-01-10 06:50:38,030 INFO L125 PetriNetUnfolderBase]: For 3814/3956 co-relation queries the response was YES. [2025-01-10 06:50:38,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25112 conditions, 13572 events. 5757/13572 cut-off events. For 3814/3956 co-relation queries the response was YES. Maximal size of possible extension queue 636. Compared 134595 event pairs, 3813 based on Foata normal form. 81/11432 useless extension candidates. Maximal degree in co-relation 24985. Up to 8381 conditions per place. [2025-01-10 06:50:38,079 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 22 changer transitions 0/179 dead transitions. [2025-01-10 06:50:38,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 179 transitions, 777 flow [2025-01-10 06:50:38,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 06:50:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-01-10 06:50:38,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2025-01-10 06:50:38,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5438407746100054 [2025-01-10 06:50:38,082 INFO L175 Difference]: Start difference. First operand has 157 places, 179 transitions, 572 flow. Second operand 11 states and 1011 transitions. [2025-01-10 06:50:38,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 179 transitions, 777 flow [2025-01-10 06:50:38,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 179 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:38,124 INFO L231 Difference]: Finished difference. Result has 167 places, 179 transitions, 631 flow [2025-01-10 06:50:38,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=631, PETRI_PLACES=167, PETRI_TRANSITIONS=179} [2025-01-10 06:50:38,125 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2025-01-10 06:50:38,125 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 179 transitions, 631 flow [2025-01-10 06:50:38,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:38,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:38,127 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:38,134 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:50:38,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-10 06:50:38,327 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:38,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:38,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1446832705, now seen corresponding path program 2 times [2025-01-10 06:50:38,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:38,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901799661] [2025-01-10 06:50:38,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:50:38,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:38,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-01-10 06:50:38,356 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 42 statements. [2025-01-10 06:50:38,356 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:50:38,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:38,412 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:38,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:38,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901799661] [2025-01-10 06:50:38,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901799661] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:38,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:38,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:38,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459093450] [2025-01-10 06:50:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:38,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:38,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:38,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:38,449 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-01-10 06:50:38,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 179 transitions, 631 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:38,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:38,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-01-10 06:50:38,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:39,407 INFO L124 PetriNetUnfolderBase]: 6529/14592 cut-off events. [2025-01-10 06:50:39,408 INFO L125 PetriNetUnfolderBase]: For 4164/4206 co-relation queries the response was YES. [2025-01-10 06:50:39,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27644 conditions, 14592 events. 6529/14592 cut-off events. For 4164/4206 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 140492 event pairs, 3522 based on Foata normal form. 98/12315 useless extension candidates. Maximal degree in co-relation 27487. Up to 7689 conditions per place. [2025-01-10 06:50:39,472 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 134 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2025-01-10 06:50:39,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 213 transitions, 980 flow [2025-01-10 06:50:39,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2025-01-10 06:50:39,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6390532544378699 [2025-01-10 06:50:39,474 INFO L175 Difference]: Start difference. First operand has 167 places, 179 transitions, 631 flow. Second operand 4 states and 432 transitions. [2025-01-10 06:50:39,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 213 transitions, 980 flow [2025-01-10 06:50:39,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 213 transitions, 948 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-01-10 06:50:39,516 INFO L231 Difference]: Finished difference. Result has 161 places, 178 transitions, 609 flow [2025-01-10 06:50:39,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=161, PETRI_TRANSITIONS=178} [2025-01-10 06:50:39,517 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2025-01-10 06:50:39,517 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 178 transitions, 609 flow [2025-01-10 06:50:39,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:39,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:39,517 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:39,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 06:50:39,517 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:39,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash -456651272, now seen corresponding path program 1 times [2025-01-10 06:50:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915001221] [2025-01-10 06:50:39,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:39,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-10 06:50:39,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 06:50:39,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:39,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:39,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915001221] [2025-01-10 06:50:39,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915001221] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:39,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:39,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406906924] [2025-01-10 06:50:39,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:39,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:39,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:39,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:39,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:39,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:50:39,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 178 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:39,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:39,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:50:39,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:41,065 INFO L124 PetriNetUnfolderBase]: 8794/18727 cut-off events. [2025-01-10 06:50:41,065 INFO L125 PetriNetUnfolderBase]: For 6179/6430 co-relation queries the response was YES. [2025-01-10 06:50:41,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36373 conditions, 18727 events. 8794/18727 cut-off events. For 6179/6430 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 180630 event pairs, 3698 based on Foata normal form. 599/16405 useless extension candidates. Maximal degree in co-relation 36230. Up to 8166 conditions per place. [2025-01-10 06:50:41,137 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 188 selfloop transitions, 10 changer transitions 0/264 dead transitions. [2025-01-10 06:50:41,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 264 transitions, 1303 flow [2025-01-10 06:50:41,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:41,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2025-01-10 06:50:41,139 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2025-01-10 06:50:41,139 INFO L175 Difference]: Start difference. First operand has 161 places, 178 transitions, 609 flow. Second operand 4 states and 468 transitions. [2025-01-10 06:50:41,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 264 transitions, 1303 flow [2025-01-10 06:50:41,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 264 transitions, 1277 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:50:41,192 INFO L231 Difference]: Finished difference. Result has 162 places, 182 transitions, 663 flow [2025-01-10 06:50:41,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=663, PETRI_PLACES=162, PETRI_TRANSITIONS=182} [2025-01-10 06:50:41,193 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 15 predicate places. [2025-01-10 06:50:41,193 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 182 transitions, 663 flow [2025-01-10 06:50:41,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:41,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:41,194 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:41,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 06:50:41,194 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:41,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:41,197 INFO L85 PathProgramCache]: Analyzing trace with hash -455634405, now seen corresponding path program 1 times [2025-01-10 06:50:41,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:41,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747903309] [2025-01-10 06:50:41,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:41,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:41,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-10 06:50:41,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 06:50:41,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:41,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:41,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747903309] [2025-01-10 06:50:41,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747903309] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:41,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:41,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:41,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704526113] [2025-01-10 06:50:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:41,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:50:41,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:41,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:50:41,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:50:41,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:41,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 182 transitions, 663 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:41,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:41,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:41,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:43,350 INFO L124 PetriNetUnfolderBase]: 11560/25365 cut-off events. [2025-01-10 06:50:43,350 INFO L125 PetriNetUnfolderBase]: For 9936/10462 co-relation queries the response was YES. [2025-01-10 06:50:43,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51574 conditions, 25365 events. 11560/25365 cut-off events. For 9936/10462 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 255614 event pairs, 5248 based on Foata normal form. 537/23293 useless extension candidates. Maximal degree in co-relation 51430. Up to 11054 conditions per place. [2025-01-10 06:50:43,491 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 168 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2025-01-10 06:50:43,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 244 transitions, 1202 flow [2025-01-10 06:50:43,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:50:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:50:43,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2025-01-10 06:50:43,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2025-01-10 06:50:43,493 INFO L175 Difference]: Start difference. First operand has 162 places, 182 transitions, 663 flow. Second operand 3 states and 387 transitions. [2025-01-10 06:50:43,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 244 transitions, 1202 flow [2025-01-10 06:50:43,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 244 transitions, 1202 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:50:43,600 INFO L231 Difference]: Finished difference. Result has 165 places, 183 transitions, 681 flow [2025-01-10 06:50:43,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=165, PETRI_TRANSITIONS=183} [2025-01-10 06:50:43,601 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 18 predicate places. [2025-01-10 06:50:43,601 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 183 transitions, 681 flow [2025-01-10 06:50:43,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:43,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:43,601 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:43,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 06:50:43,602 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:43,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:43,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2132801595, now seen corresponding path program 1 times [2025-01-10 06:50:43,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:43,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164611695] [2025-01-10 06:50:43,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:43,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:43,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 06:50:43,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 06:50:43,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:43,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:43,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164611695] [2025-01-10 06:50:43,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164611695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:43,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:43,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998978103] [2025-01-10 06:50:43,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:43,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:43,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:43,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:43,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:43,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-01-10 06:50:43,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 183 transitions, 681 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:43,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:43,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-01-10 06:50:43,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:45,587 INFO L124 PetriNetUnfolderBase]: 12166/25984 cut-off events. [2025-01-10 06:50:45,587 INFO L125 PetriNetUnfolderBase]: For 11122/11712 co-relation queries the response was YES. [2025-01-10 06:50:45,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54243 conditions, 25984 events. 12166/25984 cut-off events. For 11122/11712 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 258526 event pairs, 5625 based on Foata normal form. 557/24417 useless extension candidates. Maximal degree in co-relation 54097. Up to 11544 conditions per place. [2025-01-10 06:50:45,779 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 211 selfloop transitions, 3 changer transitions 0/286 dead transitions. [2025-01-10 06:50:45,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 286 transitions, 1432 flow [2025-01-10 06:50:45,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2025-01-10 06:50:45,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7381656804733728 [2025-01-10 06:50:45,781 INFO L175 Difference]: Start difference. First operand has 165 places, 183 transitions, 681 flow. Second operand 4 states and 499 transitions. [2025-01-10 06:50:45,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 286 transitions, 1432 flow [2025-01-10 06:50:45,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 286 transitions, 1426 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:50:45,981 INFO L231 Difference]: Finished difference. Result has 169 places, 184 transitions, 697 flow [2025-01-10 06:50:45,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=697, PETRI_PLACES=169, PETRI_TRANSITIONS=184} [2025-01-10 06:50:45,982 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2025-01-10 06:50:45,982 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 184 transitions, 697 flow [2025-01-10 06:50:45,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:45,982 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:45,983 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:45,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 06:50:45,983 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:45,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:45,983 INFO L85 PathProgramCache]: Analyzing trace with hash 2094564879, now seen corresponding path program 1 times [2025-01-10 06:50:45,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:45,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069429719] [2025-01-10 06:50:45,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:45,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:45,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 06:50:46,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 06:50:46,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:46,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:46,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069429719] [2025-01-10 06:50:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069429719] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:46,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:46,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:50:46,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495207501] [2025-01-10 06:50:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:46,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:46,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:46,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:46,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:46,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:50:46,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 184 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:46,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:46,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:50:46,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:47,717 INFO L124 PetriNetUnfolderBase]: 10460/21676 cut-off events. [2025-01-10 06:50:47,717 INFO L125 PetriNetUnfolderBase]: For 9440/9952 co-relation queries the response was YES. [2025-01-10 06:50:47,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45924 conditions, 21676 events. 10460/21676 cut-off events. For 9440/9952 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 202089 event pairs, 5256 based on Foata normal form. 416/20504 useless extension candidates. Maximal degree in co-relation 45776. Up to 10878 conditions per place. [2025-01-10 06:50:47,883 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 228 selfloop transitions, 4 changer transitions 14/320 dead transitions. [2025-01-10 06:50:47,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 320 transitions, 1592 flow [2025-01-10 06:50:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:50:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:50:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2025-01-10 06:50:47,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325443786982249 [2025-01-10 06:50:47,885 INFO L175 Difference]: Start difference. First operand has 169 places, 184 transitions, 697 flow. Second operand 5 states and 619 transitions. [2025-01-10 06:50:47,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 320 transitions, 1592 flow [2025-01-10 06:50:47,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 320 transitions, 1588 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:47,972 INFO L231 Difference]: Finished difference. Result has 174 places, 186 transitions, 718 flow [2025-01-10 06:50:47,972 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=718, PETRI_PLACES=174, PETRI_TRANSITIONS=186} [2025-01-10 06:50:47,973 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 27 predicate places. [2025-01-10 06:50:47,973 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 186 transitions, 718 flow [2025-01-10 06:50:47,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:47,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:47,973 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:47,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 06:50:47,973 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:47,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:47,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1902141557, now seen corresponding path program 1 times [2025-01-10 06:50:47,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:47,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895296571] [2025-01-10 06:50:47,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:47,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 06:50:47,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 06:50:48,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:48,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:48,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:48,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895296571] [2025-01-10 06:50:48,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895296571] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:48,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:48,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:48,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897268814] [2025-01-10 06:50:48,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:48,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:50:48,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:48,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:50:48,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:50:48,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2025-01-10 06:50:48,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 186 transitions, 718 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:48,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:48,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2025-01-10 06:50:48,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:49,881 INFO L124 PetriNetUnfolderBase]: 12403/24884 cut-off events. [2025-01-10 06:50:49,881 INFO L125 PetriNetUnfolderBase]: For 9806/10281 co-relation queries the response was YES. [2025-01-10 06:50:49,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54257 conditions, 24884 events. 12403/24884 cut-off events. For 9806/10281 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 227348 event pairs, 5860 based on Foata normal form. 247/23232 useless extension candidates. Maximal degree in co-relation 54107. Up to 12224 conditions per place. [2025-01-10 06:50:50,089 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 187 selfloop transitions, 12 changer transitions 0/267 dead transitions. [2025-01-10 06:50:50,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 267 transitions, 1364 flow [2025-01-10 06:50:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:50:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:50:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2025-01-10 06:50:50,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2025-01-10 06:50:50,091 INFO L175 Difference]: Start difference. First operand has 174 places, 186 transitions, 718 flow. Second operand 5 states and 546 transitions. [2025-01-10 06:50:50,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 267 transitions, 1364 flow [2025-01-10 06:50:50,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 267 transitions, 1364 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:50:50,212 INFO L231 Difference]: Finished difference. Result has 179 places, 186 transitions, 764 flow [2025-01-10 06:50:50,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=764, PETRI_PLACES=179, PETRI_TRANSITIONS=186} [2025-01-10 06:50:50,213 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2025-01-10 06:50:50,213 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 186 transitions, 764 flow [2025-01-10 06:50:50,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:50,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:50,214 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:50,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 06:50:50,214 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:50,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:50,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1902142582, now seen corresponding path program 1 times [2025-01-10 06:50:50,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:50,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061663394] [2025-01-10 06:50:50,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:50,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:50,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 06:50:50,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 06:50:50,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:50,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:50,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:50,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061663394] [2025-01-10 06:50:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061663394] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:50,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:50,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:50,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555910161] [2025-01-10 06:50:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:50,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:50,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:50,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:50,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:50,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:50:50,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 186 transitions, 764 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:50,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:50,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:50:50,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:51,937 INFO L124 PetriNetUnfolderBase]: 10854/23385 cut-off events. [2025-01-10 06:50:51,937 INFO L125 PetriNetUnfolderBase]: For 14557/14898 co-relation queries the response was YES. [2025-01-10 06:50:52,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52111 conditions, 23385 events. 10854/23385 cut-off events. For 14557/14898 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 225024 event pairs, 5825 based on Foata normal form. 385/21947 useless extension candidates. Maximal degree in co-relation 51957. Up to 12180 conditions per place. [2025-01-10 06:50:52,171 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 189 selfloop transitions, 9 changer transitions 0/266 dead transitions. [2025-01-10 06:50:52,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 1398 flow [2025-01-10 06:50:52,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:52,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:52,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2025-01-10 06:50:52,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6834319526627219 [2025-01-10 06:50:52,173 INFO L175 Difference]: Start difference. First operand has 179 places, 186 transitions, 764 flow. Second operand 4 states and 462 transitions. [2025-01-10 06:50:52,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 1398 flow [2025-01-10 06:50:52,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 266 transitions, 1382 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:50:52,598 INFO L231 Difference]: Finished difference. Result has 179 places, 184 transitions, 754 flow [2025-01-10 06:50:52,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=754, PETRI_PLACES=179, PETRI_TRANSITIONS=184} [2025-01-10 06:50:52,599 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2025-01-10 06:50:52,599 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 184 transitions, 754 flow [2025-01-10 06:50:52,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:52,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:52,600 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:52,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-10 06:50:52,600 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:52,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:52,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1271285806, now seen corresponding path program 1 times [2025-01-10 06:50:52,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:52,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201303689] [2025-01-10 06:50:52,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:52,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:52,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-10 06:50:52,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-10 06:50:52,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:52,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:52,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:52,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201303689] [2025-01-10 06:50:52,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201303689] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:52,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:52,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292144362] [2025-01-10 06:50:52,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:52,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:52,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:52,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:52,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:52,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-01-10 06:50:52,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:52,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:52,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-01-10 06:50:52,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:54,574 INFO L124 PetriNetUnfolderBase]: 10920/24469 cut-off events. [2025-01-10 06:50:54,574 INFO L125 PetriNetUnfolderBase]: For 15750/15991 co-relation queries the response was YES. [2025-01-10 06:50:54,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53719 conditions, 24469 events. 10920/24469 cut-off events. For 15750/15991 co-relation queries the response was YES. Maximal size of possible extension queue 781. Compared 244664 event pairs, 6100 based on Foata normal form. 195/22456 useless extension candidates. Maximal degree in co-relation 53566. Up to 12714 conditions per place. [2025-01-10 06:50:54,850 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 149 selfloop transitions, 7 changer transitions 0/228 dead transitions. [2025-01-10 06:50:54,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 228 transitions, 1272 flow [2025-01-10 06:50:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:54,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2025-01-10 06:50:54,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.650887573964497 [2025-01-10 06:50:54,852 INFO L175 Difference]: Start difference. First operand has 179 places, 184 transitions, 754 flow. Second operand 4 states and 440 transitions. [2025-01-10 06:50:54,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 228 transitions, 1272 flow [2025-01-10 06:50:54,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 228 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:54,996 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 765 flow [2025-01-10 06:50:54,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=765, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2025-01-10 06:50:54,997 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 33 predicate places. [2025-01-10 06:50:54,997 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 765 flow [2025-01-10 06:50:54,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:54,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:54,997 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:54,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-10 06:50:54,997 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:54,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1163152181, now seen corresponding path program 1 times [2025-01-10 06:50:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:54,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144186781] [2025-01-10 06:50:54,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:55,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 06:50:55,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 06:50:55,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:55,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:55,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:55,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144186781] [2025-01-10 06:50:55,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144186781] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:55,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:55,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:50:55,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725507259] [2025-01-10 06:50:55,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:55,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:50:55,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:55,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:50:55,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:50:55,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2025-01-10 06:50:55,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:55,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:55,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2025-01-10 06:50:55,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:57,981 INFO L124 PetriNetUnfolderBase]: 13089/26010 cut-off events. [2025-01-10 06:50:57,981 INFO L125 PetriNetUnfolderBase]: For 18772/19261 co-relation queries the response was YES. [2025-01-10 06:50:58,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60416 conditions, 26010 events. 13089/26010 cut-off events. For 18772/19261 co-relation queries the response was YES. Maximal size of possible extension queue 772. Compared 237082 event pairs, 6724 based on Foata normal form. 573/24634 useless extension candidates. Maximal degree in co-relation 60261. Up to 13834 conditions per place. [2025-01-10 06:50:58,148 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 314 selfloop transitions, 13 changer transitions 0/391 dead transitions. [2025-01-10 06:50:58,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 391 transitions, 2145 flow [2025-01-10 06:50:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 06:50:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 06:50:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2025-01-10 06:50:58,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.617603550295858 [2025-01-10 06:50:58,151 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 765 flow. Second operand 8 states and 835 transitions. [2025-01-10 06:50:58,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 391 transitions, 2145 flow [2025-01-10 06:50:58,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 391 transitions, 2112 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:58,374 INFO L231 Difference]: Finished difference. Result has 188 places, 186 transitions, 814 flow [2025-01-10 06:50:58,375 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=188, PETRI_TRANSITIONS=186} [2025-01-10 06:50:58,375 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2025-01-10 06:50:58,375 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 186 transitions, 814 flow [2025-01-10 06:50:58,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:58,375 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:58,375 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:58,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 06:50:58,376 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:50:58,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash -755184349, now seen corresponding path program 1 times [2025-01-10 06:50:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446461222] [2025-01-10 06:50:58,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:58,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:58,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 06:50:58,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 06:50:58,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:58,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:58,454 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:50:58,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:58,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446461222] [2025-01-10 06:50:58,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446461222] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:58,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:58,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:50:58,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275492252] [2025-01-10 06:50:58,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:58,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:58,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:58,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:58,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-01-10 06:50:58,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 186 transitions, 814 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:58,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:58,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-01-10 06:50:58,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:00,753 INFO L124 PetriNetUnfolderBase]: 11310/24706 cut-off events. [2025-01-10 06:51:00,753 INFO L125 PetriNetUnfolderBase]: For 25764/26350 co-relation queries the response was YES. [2025-01-10 06:51:00,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58322 conditions, 24706 events. 11310/24706 cut-off events. For 25764/26350 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 242436 event pairs, 6670 based on Foata normal form. 541/23273 useless extension candidates. Maximal degree in co-relation 58163. Up to 13762 conditions per place. [2025-01-10 06:51:00,897 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 155 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2025-01-10 06:51:00,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 230 transitions, 1359 flow [2025-01-10 06:51:00,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:51:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:51:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2025-01-10 06:51:00,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6375739644970414 [2025-01-10 06:51:00,898 INFO L175 Difference]: Start difference. First operand has 188 places, 186 transitions, 814 flow. Second operand 4 states and 431 transitions. [2025-01-10 06:51:00,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 230 transitions, 1359 flow [2025-01-10 06:51:01,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 230 transitions, 1340 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-01-10 06:51:01,360 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 813 flow [2025-01-10 06:51:01,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2025-01-10 06:51:01,360 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2025-01-10 06:51:01,360 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 813 flow [2025-01-10 06:51:01,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:01,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:01,361 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:01,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-10 06:51:01,361 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:01,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:01,361 INFO L85 PathProgramCache]: Analyzing trace with hash -751061631, now seen corresponding path program 1 times [2025-01-10 06:51:01,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:01,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288270940] [2025-01-10 06:51:01,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:01,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:01,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 06:51:01,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 06:51:01,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:01,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:01,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:01,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288270940] [2025-01-10 06:51:01,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288270940] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:01,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:01,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:51:01,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155022363] [2025-01-10 06:51:01,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:01,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:51:01,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:01,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:51:01,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:51:01,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:51:01,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 813 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:01,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:01,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:51:01,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:03,509 INFO L124 PetriNetUnfolderBase]: 12176/25183 cut-off events. [2025-01-10 06:51:03,509 INFO L125 PetriNetUnfolderBase]: For 23754/24142 co-relation queries the response was YES. [2025-01-10 06:51:03,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60603 conditions, 25183 events. 12176/25183 cut-off events. For 23754/24142 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 237287 event pairs, 6403 based on Foata normal form. 510/24033 useless extension candidates. Maximal degree in co-relation 60443. Up to 13342 conditions per place. [2025-01-10 06:51:03,637 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 190 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2025-01-10 06:51:03,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 266 transitions, 1505 flow [2025-01-10 06:51:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:51:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:51:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2025-01-10 06:51:03,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6775147928994083 [2025-01-10 06:51:03,638 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 813 flow. Second operand 4 states and 458 transitions. [2025-01-10 06:51:03,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 266 transitions, 1505 flow [2025-01-10 06:51:03,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 266 transitions, 1473 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 06:51:03,865 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 821 flow [2025-01-10 06:51:03,865 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=821, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2025-01-10 06:51:03,866 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 38 predicate places. [2025-01-10 06:51:03,866 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 821 flow [2025-01-10 06:51:03,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:03,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:03,866 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:03,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-10 06:51:03,866 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:03,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:03,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1743423531, now seen corresponding path program 1 times [2025-01-10 06:51:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:03,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881817822] [2025-01-10 06:51:03,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:03,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:03,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 06:51:03,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 06:51:03,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:03,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881817822] [2025-01-10 06:51:03,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881817822] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:03,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:03,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:51:03,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15790161] [2025-01-10 06:51:03,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:03,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:51:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:03,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:51:03,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:51:03,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-01-10 06:51:03,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 821 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:03,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:03,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-01-10 06:51:03,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:06,450 INFO L124 PetriNetUnfolderBase]: 9724/20463 cut-off events. [2025-01-10 06:51:06,451 INFO L125 PetriNetUnfolderBase]: For 23178/23799 co-relation queries the response was YES. [2025-01-10 06:51:06,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48916 conditions, 20463 events. 9724/20463 cut-off events. For 23178/23799 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 187647 event pairs, 5163 based on Foata normal form. 604/19607 useless extension candidates. Maximal degree in co-relation 48756. Up to 10520 conditions per place. [2025-01-10 06:51:06,540 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 243 selfloop transitions, 4 changer transitions 22/337 dead transitions. [2025-01-10 06:51:06,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 337 transitions, 2118 flow [2025-01-10 06:51:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:51:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:51:06,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2025-01-10 06:51:06,542 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7266272189349112 [2025-01-10 06:51:06,542 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 821 flow. Second operand 5 states and 614 transitions. [2025-01-10 06:51:06,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 337 transitions, 2118 flow [2025-01-10 06:51:06,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 337 transitions, 2073 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 06:51:06,654 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 834 flow [2025-01-10 06:51:06,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=834, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2025-01-10 06:51:06,655 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 43 predicate places. [2025-01-10 06:51:06,655 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 834 flow [2025-01-10 06:51:06,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:06,655 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:06,655 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:06,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-10 06:51:06,655 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:06,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:06,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1705217567, now seen corresponding path program 1 times [2025-01-10 06:51:06,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:06,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006989061] [2025-01-10 06:51:06,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:06,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:06,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 06:51:06,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 06:51:06,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:06,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006989061] [2025-01-10 06:51:06,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006989061] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:06,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:06,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:51:06,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428539901] [2025-01-10 06:51:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:06,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:51:06,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:06,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:51:06,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:51:06,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-01-10 06:51:06,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:06,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:06,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-01-10 06:51:06,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:09,103 INFO L124 PetriNetUnfolderBase]: 10058/20653 cut-off events. [2025-01-10 06:51:09,103 INFO L125 PetriNetUnfolderBase]: For 22580/23221 co-relation queries the response was YES. [2025-01-10 06:51:09,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50138 conditions, 20653 events. 10058/20653 cut-off events. For 22580/23221 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 185399 event pairs, 5888 based on Foata normal form. 723/20104 useless extension candidates. Maximal degree in co-relation 49977. Up to 11850 conditions per place. [2025-01-10 06:51:09,236 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 220 selfloop transitions, 3 changer transitions 0/289 dead transitions. [2025-01-10 06:51:09,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 289 transitions, 1766 flow [2025-01-10 06:51:09,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:51:09,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:51:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2025-01-10 06:51:09,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7248520710059172 [2025-01-10 06:51:09,238 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 834 flow. Second operand 4 states and 490 transitions. [2025-01-10 06:51:09,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 289 transitions, 1766 flow [2025-01-10 06:51:09,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 289 transitions, 1764 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:51:09,358 INFO L231 Difference]: Finished difference. Result has 194 places, 187 transitions, 850 flow [2025-01-10 06:51:09,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=850, PETRI_PLACES=194, PETRI_TRANSITIONS=187} [2025-01-10 06:51:09,359 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2025-01-10 06:51:09,359 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 187 transitions, 850 flow [2025-01-10 06:51:09,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:09,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:09,359 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:09,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-10 06:51:09,359 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:09,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:09,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1935876580, now seen corresponding path program 1 times [2025-01-10 06:51:09,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:09,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87645571] [2025-01-10 06:51:09,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:09,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:09,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 06:51:09,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 06:51:09,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:09,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87645571] [2025-01-10 06:51:09,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87645571] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:09,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:09,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:51:09,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550544278] [2025-01-10 06:51:09,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:09,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:51:09,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:09,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:51:09,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:51:09,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:51:09,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 187 transitions, 850 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:09,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:09,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:51:09,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:11,862 INFO L124 PetriNetUnfolderBase]: 10159/21384 cut-off events. [2025-01-10 06:51:11,862 INFO L125 PetriNetUnfolderBase]: For 24211/24731 co-relation queries the response was YES. [2025-01-10 06:51:11,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52411 conditions, 21384 events. 10159/21384 cut-off events. For 24211/24731 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 196020 event pairs, 5796 based on Foata normal form. 620/20536 useless extension candidates. Maximal degree in co-relation 52247. Up to 11770 conditions per place. [2025-01-10 06:51:12,030 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 208 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2025-01-10 06:51:12,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 279 transitions, 1740 flow [2025-01-10 06:51:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:51:12,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:51:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2025-01-10 06:51:12,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2025-01-10 06:51:12,031 INFO L175 Difference]: Start difference. First operand has 194 places, 187 transitions, 850 flow. Second operand 4 states and 460 transitions. [2025-01-10 06:51:12,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 279 transitions, 1740 flow [2025-01-10 06:51:12,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 279 transitions, 1732 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:51:12,168 INFO L231 Difference]: Finished difference. Result has 195 places, 185 transitions, 848 flow [2025-01-10 06:51:12,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=848, PETRI_PLACES=195, PETRI_TRANSITIONS=185} [2025-01-10 06:51:12,169 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 48 predicate places. [2025-01-10 06:51:12,169 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 185 transitions, 848 flow [2025-01-10 06:51:12,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:12,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:12,169 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:12,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-10 06:51:12,169 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:12,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:12,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1935877605, now seen corresponding path program 1 times [2025-01-10 06:51:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570144031] [2025-01-10 06:51:12,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:12,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:12,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 06:51:12,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 06:51:12,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:12,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:12,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:12,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570144031] [2025-01-10 06:51:12,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570144031] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:12,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:12,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:51:12,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044585862] [2025-01-10 06:51:12,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:12,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:51:12,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:12,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:51:12,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:51:12,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2025-01-10 06:51:12,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 185 transitions, 848 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:12,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:12,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2025-01-10 06:51:12,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:14,947 INFO L124 PetriNetUnfolderBase]: 11495/22401 cut-off events. [2025-01-10 06:51:14,947 INFO L125 PetriNetUnfolderBase]: For 25134/25844 co-relation queries the response was YES. [2025-01-10 06:51:15,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56889 conditions, 22401 events. 11495/22401 cut-off events. For 25134/25844 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 192648 event pairs, 5796 based on Foata normal form. 546/21793 useless extension candidates. Maximal degree in co-relation 56726. Up to 11769 conditions per place. [2025-01-10 06:51:15,053 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 206 selfloop transitions, 12 changer transitions 0/278 dead transitions. [2025-01-10 06:51:15,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 278 transitions, 1750 flow [2025-01-10 06:51:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:51:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:51:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2025-01-10 06:51:15,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6437869822485207 [2025-01-10 06:51:15,054 INFO L175 Difference]: Start difference. First operand has 195 places, 185 transitions, 848 flow. Second operand 5 states and 544 transitions. [2025-01-10 06:51:15,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 278 transitions, 1750 flow [2025-01-10 06:51:15,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 278 transitions, 1737 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:51:15,178 INFO L231 Difference]: Finished difference. Result has 198 places, 185 transitions, 881 flow [2025-01-10 06:51:15,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=881, PETRI_PLACES=198, PETRI_TRANSITIONS=185} [2025-01-10 06:51:15,179 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2025-01-10 06:51:15,179 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 185 transitions, 881 flow [2025-01-10 06:51:15,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:15,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:15,180 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:15,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-10 06:51:15,180 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:15,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:15,181 INFO L85 PathProgramCache]: Analyzing trace with hash 117338157, now seen corresponding path program 1 times [2025-01-10 06:51:15,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:15,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460445802] [2025-01-10 06:51:15,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:15,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-10 06:51:15,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-10 06:51:15,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:15,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:15,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:15,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460445802] [2025-01-10 06:51:15,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460445802] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:15,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:15,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:51:15,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187008757] [2025-01-10 06:51:15,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:15,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:51:15,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:15,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:51:15,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:51:15,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2025-01-10 06:51:15,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 185 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:15,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:15,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2025-01-10 06:51:15,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:17,621 INFO L124 PetriNetUnfolderBase]: 11662/22380 cut-off events. [2025-01-10 06:51:17,621 INFO L125 PetriNetUnfolderBase]: For 29997/30719 co-relation queries the response was YES. [2025-01-10 06:51:17,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58956 conditions, 22380 events. 11662/22380 cut-off events. For 29997/30719 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 189370 event pairs, 6231 based on Foata normal form. 857/22172 useless extension candidates. Maximal degree in co-relation 58790. Up to 12567 conditions per place. [2025-01-10 06:51:17,765 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 345 selfloop transitions, 13 changer transitions 0/417 dead transitions. [2025-01-10 06:51:17,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 417 transitions, 2763 flow [2025-01-10 06:51:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 06:51:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 06:51:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 830 transitions. [2025-01-10 06:51:17,766 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.613905325443787 [2025-01-10 06:51:17,766 INFO L175 Difference]: Start difference. First operand has 198 places, 185 transitions, 881 flow. Second operand 8 states and 830 transitions. [2025-01-10 06:51:17,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 417 transitions, 2763 flow [2025-01-10 06:51:17,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 417 transitions, 2753 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:51:17,946 INFO L231 Difference]: Finished difference. Result has 206 places, 187 transitions, 928 flow [2025-01-10 06:51:17,947 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=928, PETRI_PLACES=206, PETRI_TRANSITIONS=187} [2025-01-10 06:51:17,947 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 59 predicate places. [2025-01-10 06:51:17,947 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 187 transitions, 928 flow [2025-01-10 06:51:17,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:17,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:17,948 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:17,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-10 06:51:17,948 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:17,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash 289433255, now seen corresponding path program 1 times [2025-01-10 06:51:17,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:17,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107370663] [2025-01-10 06:51:17,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:17,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-01-10 06:51:17,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-01-10 06:51:17,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:17,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:18,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:18,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107370663] [2025-01-10 06:51:18,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107370663] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:18,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:51:18,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:51:18,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493139413] [2025-01-10 06:51:18,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:18,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:51:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:18,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:51:18,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:51:18,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-01-10 06:51:18,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 187 transitions, 928 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:18,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:18,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-01-10 06:51:18,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:20,411 INFO L124 PetriNetUnfolderBase]: 10827/21496 cut-off events. [2025-01-10 06:51:20,411 INFO L125 PetriNetUnfolderBase]: For 35039/35668 co-relation queries the response was YES. [2025-01-10 06:51:20,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58719 conditions, 21496 events. 10827/21496 cut-off events. For 35039/35668 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 187353 event pairs, 5941 based on Foata normal form. 723/21535 useless extension candidates. Maximal degree in co-relation 58548. Up to 12135 conditions per place. [2025-01-10 06:51:20,532 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 206 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2025-01-10 06:51:20,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 278 transitions, 1826 flow [2025-01-10 06:51:20,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:51:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:51:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2025-01-10 06:51:20,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2025-01-10 06:51:20,533 INFO L175 Difference]: Start difference. First operand has 206 places, 187 transitions, 928 flow. Second operand 4 states and 456 transitions. [2025-01-10 06:51:20,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 278 transitions, 1826 flow [2025-01-10 06:51:20,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 278 transitions, 1809 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-01-10 06:51:20,986 INFO L231 Difference]: Finished difference. Result has 204 places, 186 transitions, 939 flow [2025-01-10 06:51:20,986 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=204, PETRI_TRANSITIONS=186} [2025-01-10 06:51:20,987 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2025-01-10 06:51:20,987 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 186 transitions, 939 flow [2025-01-10 06:51:20,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:20,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:20,987 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:20,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-10 06:51:20,987 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:20,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:20,988 INFO L85 PathProgramCache]: Analyzing trace with hash 326840890, now seen corresponding path program 1 times [2025-01-10 06:51:20,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:20,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738537537] [2025-01-10 06:51:20,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:20,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:20,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:51:21,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:51:21,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:21,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:51:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738537537] [2025-01-10 06:51:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738537537] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:51:21,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779081139] [2025-01-10 06:51:21,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:51:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:51:21,092 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:51:21,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 06:51:21,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:51:21,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:51:21,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:21,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:51:21,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:51:21,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:51:21,276 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:51:21,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:51:21,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779081139] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:51:21,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:51:21,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:51:21,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993052320] [2025-01-10 06:51:21,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:51:21,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:51:21,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:51:21,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:51:21,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-10 06:51:21,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-01-10 06:51:21,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 186 transitions, 939 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:21,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:51:21,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-01-10 06:51:21,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:51:23,442 INFO L124 PetriNetUnfolderBase]: 9939/19683 cut-off events. [2025-01-10 06:51:23,442 INFO L125 PetriNetUnfolderBase]: For 35108/36061 co-relation queries the response was YES. [2025-01-10 06:51:23,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54640 conditions, 19683 events. 9939/19683 cut-off events. For 35108/36061 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 171674 event pairs, 2110 based on Foata normal form. 1018/20216 useless extension candidates. Maximal degree in co-relation 54468. Up to 7038 conditions per place. [2025-01-10 06:51:23,550 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 317 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2025-01-10 06:51:23,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 384 transitions, 2579 flow [2025-01-10 06:51:23,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:51:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:51:23,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2025-01-10 06:51:23,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7149901380670611 [2025-01-10 06:51:23,552 INFO L175 Difference]: Start difference. First operand has 204 places, 186 transitions, 939 flow. Second operand 6 states and 725 transitions. [2025-01-10 06:51:23,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 384 transitions, 2579 flow [2025-01-10 06:51:23,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 384 transitions, 2523 flow, removed 5 selfloop flow, removed 2 redundant places. [2025-01-10 06:51:23,757 INFO L231 Difference]: Finished difference. Result has 204 places, 183 transitions, 925 flow [2025-01-10 06:51:23,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=925, PETRI_PLACES=204, PETRI_TRANSITIONS=183} [2025-01-10 06:51:23,758 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2025-01-10 06:51:23,758 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 183 transitions, 925 flow [2025-01-10 06:51:23,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:51:23,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:51:23,758 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:51:23,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 06:51:23,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-10 06:51:23,963 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-01-10 06:51:23,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:51:23,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1542134669, now seen corresponding path program 1 times [2025-01-10 06:51:23,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:51:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106707934] [2025-01-10 06:51:23,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:51:23,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:51:23,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-10 06:51:23,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-10 06:51:23,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:51:23,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat