./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/array-eq-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/array-eq-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 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:48:24,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:48:24,796 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:48:24,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:48:24,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:48:24,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:48:24,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:48:24,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:48:24,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:48:24,837 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:48:24,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:48:24,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:48:24,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:48:24,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:48:24,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:48:24,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:48:24,840 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:48:24,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:24,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:24,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:48:24,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:48:24,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:48:24,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:48:24,843 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:48:24,843 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:48:24,843 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:48:24,843 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 -> 6897befed0dbbae24492a1e82d50fcd0be6b3857b241d882a904d02a513d7a6d [2025-01-10 06:48:25,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:48:25,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:48:25,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:48:25,140 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:48:25,141 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:48:25,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2025-01-10 06:48:26,513 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00ed8dd5c/ce7b8f3df07948d2a6d0a9bdfa683052/FLAG75e71fae9 [2025-01-10 06:48:26,763 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:48:26,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2025-01-10 06:48:26,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00ed8dd5c/ce7b8f3df07948d2a6d0a9bdfa683052/FLAG75e71fae9 [2025-01-10 06:48:26,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/00ed8dd5c/ce7b8f3df07948d2a6d0a9bdfa683052 [2025-01-10 06:48:26,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:48:26,813 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:48:26,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:26,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:48:26,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:48:26,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:26" (1/1) ... [2025-01-10 06:48:26,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac99818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:26, skipping insertion in model container [2025-01-10 06:48:26,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:26" (1/1) ... [2025-01-10 06:48:26,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:48:27,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:27,030 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:48:27,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:27,067 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:48:27,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27 WrapperNode [2025-01-10 06:48:27,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:27,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:27,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:48:27,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:48:27,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,107 INFO L138 Inliner]: procedures = 22, calls = 20, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 105 [2025-01-10 06:48:27,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:27,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:48:27,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:48:27,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:48:27,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,146 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 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 06:48:27,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,154 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:48:27,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:48:27,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:48:27,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:48:27,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (1/1) ... [2025-01-10 06:48:27,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:27,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:27,209 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 06:48:27,211 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 06:48:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:48:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 06:48:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 06:48:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 06:48:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:48:27,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:48:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:48:27,235 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 06:48:27,325 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:48:27,327 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:48:27,590 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:48:27,591 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:48:27,810 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:48:27,810 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:48:27,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:27 BoogieIcfgContainer [2025-01-10 06:48:27,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:48:27,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:48:27,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:48:27,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:48:27,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:48:26" (1/3) ... [2025-01-10 06:48:27,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d2cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:27, skipping insertion in model container [2025-01-10 06:48:27,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:27" (2/3) ... [2025-01-10 06:48:27,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d2cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:27, skipping insertion in model container [2025-01-10 06:48:27,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:27" (3/3) ... [2025-01-10 06:48:27,823 INFO L128 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2025-01-10 06:48:27,841 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:48:27,843 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array-eq-symm.wvr.c that has 3 procedures, 37 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2025-01-10 06:48:27,843 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:48:27,899 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 06:48:27,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 42 transitions, 98 flow [2025-01-10 06:48:27,973 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2025-01-10 06:48:27,976 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-10 06:48:27,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 6/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-01-10 06:48:27,979 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 42 transitions, 98 flow [2025-01-10 06:48:27,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 38 transitions, 85 flow [2025-01-10 06:48:27,993 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:48:28,005 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;@ebea3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:48:28,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2025-01-10 06:48:28,011 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:48:28,011 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:48:28,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:48:28,011 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:28,012 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:48:28,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:28,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:28,021 INFO L85 PathProgramCache]: Analyzing trace with hash 437368, now seen corresponding path program 1 times [2025-01-10 06:48:28,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:28,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300210081] [2025-01-10 06:48:28,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:28,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:28,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:48:28,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:48:28,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:28,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:28,332 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 06:48:28,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:28,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300210081] [2025-01-10 06:48:28,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300210081] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:28,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:28,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839764693] [2025-01-10 06:48:28,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:28,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:28,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:28,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:28,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:28,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 06:48:28,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:28,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:28,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:28,578 INFO L124 PetriNetUnfolderBase]: 155/313 cut-off events. [2025-01-10 06:48:28,578 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-10 06:48:28,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 313 events. 155/313 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1390 event pairs, 84 based on Foata normal form. 2/250 useless extension candidates. Maximal degree in co-relation 496. Up to 233 conditions per place. [2025-01-10 06:48:28,584 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 25 selfloop transitions, 7 changer transitions 0/44 dead transitions. [2025-01-10 06:48:28,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 161 flow [2025-01-10 06:48:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:28,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:28,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2025-01-10 06:48:28,600 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2025-01-10 06:48:28,601 INFO L175 Difference]: Start difference. First operand has 39 places, 38 transitions, 85 flow. Second operand 4 states and 92 transitions. [2025-01-10 06:48:28,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 161 flow [2025-01-10 06:48:28,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:48:28,611 INFO L231 Difference]: Finished difference. Result has 42 places, 44 transitions, 140 flow [2025-01-10 06:48:28,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=42, PETRI_TRANSITIONS=44} [2025-01-10 06:48:28,617 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2025-01-10 06:48:28,618 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 44 transitions, 140 flow [2025-01-10 06:48:28,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 06:48:28,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:28,619 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:48:28,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:48:28,620 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:28,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash 145143465, now seen corresponding path program 1 times [2025-01-10 06:48:28,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:28,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219807280] [2025-01-10 06:48:28,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:28,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:48:28,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:48:28,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:28,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:28,752 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 06:48:28,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:28,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219807280] [2025-01-10 06:48:28,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219807280] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915640928] [2025-01-10 06:48:28,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:28,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:28,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:28,757 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 06:48:28,766 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 06:48:28,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:48:28,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:48:28,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:28,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:28,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:48:28,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:28,902 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 06:48:28,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:28,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915640928] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:28,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:48:28,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:48:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75741424] [2025-01-10 06:48:28,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:28,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:28,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:28,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:28,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:48:28,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:28,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 44 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 06:48:28,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:28,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:28,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:29,092 INFO L124 PetriNetUnfolderBase]: 155/311 cut-off events. [2025-01-10 06:48:29,093 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-01-10 06:48:29,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 311 events. 155/311 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1372 event pairs, 84 based on Foata normal form. 2/251 useless extension candidates. Maximal degree in co-relation 536. Up to 223 conditions per place. [2025-01-10 06:48:29,096 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 18 selfloop transitions, 12 changer transitions 0/42 dead transitions. [2025-01-10 06:48:29,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 192 flow [2025-01-10 06:48:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:48:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:48:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2025-01-10 06:48:29,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2025-01-10 06:48:29,100 INFO L175 Difference]: Start difference. First operand has 42 places, 44 transitions, 140 flow. Second operand 6 states and 116 transitions. [2025-01-10 06:48:29,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 192 flow [2025-01-10 06:48:29,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:48:29,103 INFO L231 Difference]: Finished difference. Result has 45 places, 42 transitions, 156 flow [2025-01-10 06:48:29,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2025-01-10 06:48:29,105 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2025-01-10 06:48:29,105 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 156 flow [2025-01-10 06:48:29,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 06:48:29,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:29,105 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:48:29,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 06:48:29,309 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 06:48:29,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:29,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:29,310 INFO L85 PathProgramCache]: Analyzing trace with hash 204480537, now seen corresponding path program 1 times [2025-01-10 06:48:29,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:29,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695153615] [2025-01-10 06:48:29,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:29,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:48:29,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:48:29,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:29,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:29,451 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 06:48:29,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695153615] [2025-01-10 06:48:29,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695153615] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:29,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928409608] [2025-01-10 06:48:29,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:29,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:29,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:29,455 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 06:48:29,457 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 06:48:29,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:48:29,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:48:29,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:29,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:29,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:48:29,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:29,557 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 06:48:29,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:29,605 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 06:48:29,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928409608] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:29,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:29,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-01-10 06:48:29,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459604113] [2025-01-10 06:48:29,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:29,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:48:29,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:29,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:48:29,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:48:29,641 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:29,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 156 flow. Second operand has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 0 states have call successors, (0), 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 06:48:29,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:29,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:29,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:29,844 INFO L124 PetriNetUnfolderBase]: 161/335 cut-off events. [2025-01-10 06:48:29,844 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2025-01-10 06:48:29,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 335 events. 161/335 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1548 event pairs, 84 based on Foata normal form. 6/278 useless extension candidates. Maximal degree in co-relation 538. Up to 234 conditions per place. [2025-01-10 06:48:29,851 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 23 selfloop transitions, 25 changer transitions 0/60 dead transitions. [2025-01-10 06:48:29,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 366 flow [2025-01-10 06:48:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 06:48:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-10 06:48:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 194 transitions. [2025-01-10 06:48:29,855 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2025-01-10 06:48:29,855 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 156 flow. Second operand 10 states and 194 transitions. [2025-01-10 06:48:29,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 366 flow [2025-01-10 06:48:29,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 308 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-01-10 06:48:29,860 INFO L231 Difference]: Finished difference. Result has 52 places, 60 transitions, 296 flow [2025-01-10 06:48:29,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=296, PETRI_PLACES=52, PETRI_TRANSITIONS=60} [2025-01-10 06:48:29,861 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2025-01-10 06:48:29,861 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 60 transitions, 296 flow [2025-01-10 06:48:29,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 0 states have call successors, (0), 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 06:48:29,861 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:29,861 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:29,870 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 06:48:30,062 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 06:48:30,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:30,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:30,063 INFO L85 PathProgramCache]: Analyzing trace with hash -745972148, now seen corresponding path program 1 times [2025-01-10 06:48:30,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:30,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063515291] [2025-01-10 06:48:30,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:30,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:30,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:48:30,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:48:30,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:30,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:30,145 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 06:48:30,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:30,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063515291] [2025-01-10 06:48:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063515291] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:30,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469152484] [2025-01-10 06:48:30,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:30,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:30,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:30,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:30,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:30,164 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2025-01-10 06:48:30,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 60 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 06:48:30,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:30,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2025-01-10 06:48:30,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:30,270 INFO L124 PetriNetUnfolderBase]: 183/362 cut-off events. [2025-01-10 06:48:30,270 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2025-01-10 06:48:30,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 362 events. 183/362 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1664 event pairs, 68 based on Foata normal form. 14/311 useless extension candidates. Maximal degree in co-relation 689. Up to 217 conditions per place. [2025-01-10 06:48:30,274 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 52 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2025-01-10 06:48:30,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 422 flow [2025-01-10 06:48:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:30,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2025-01-10 06:48:30,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2025-01-10 06:48:30,277 INFO L175 Difference]: Start difference. First operand has 52 places, 60 transitions, 296 flow. Second operand 4 states and 96 transitions. [2025-01-10 06:48:30,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 422 flow [2025-01-10 06:48:30,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 398 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:30,282 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 276 flow [2025-01-10 06:48:30,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2025-01-10 06:48:30,283 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2025-01-10 06:48:30,285 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 276 flow [2025-01-10 06:48:30,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 06:48:30,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:30,285 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:30,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:48:30,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:30,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:30,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1650299654, now seen corresponding path program 1 times [2025-01-10 06:48:30,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:30,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852695448] [2025-01-10 06:48:30,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:30,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:30,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:30,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:30,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:30,350 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 06:48:30,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:30,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852695448] [2025-01-10 06:48:30,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852695448] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:30,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:30,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137054475] [2025-01-10 06:48:30,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:30,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:30,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:30,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:30,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2025-01-10 06:48:30,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 06:48:30,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:30,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2025-01-10 06:48:30,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:30,480 INFO L124 PetriNetUnfolderBase]: 264/514 cut-off events. [2025-01-10 06:48:30,482 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2025-01-10 06:48:30,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 514 events. 264/514 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2477 event pairs, 51 based on Foata normal form. 14/484 useless extension candidates. Maximal degree in co-relation 1029. Up to 222 conditions per place. [2025-01-10 06:48:30,487 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 66 selfloop transitions, 3 changer transitions 0/81 dead transitions. [2025-01-10 06:48:30,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 81 transitions, 467 flow [2025-01-10 06:48:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2025-01-10 06:48:30,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2025-01-10 06:48:30,488 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 276 flow. Second operand 4 states and 110 transitions. [2025-01-10 06:48:30,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 81 transitions, 467 flow [2025-01-10 06:48:30,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 81 transitions, 457 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:48:30,492 INFO L231 Difference]: Finished difference. Result has 54 places, 61 transitions, 290 flow [2025-01-10 06:48:30,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=54, PETRI_TRANSITIONS=61} [2025-01-10 06:48:30,493 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 15 predicate places. [2025-01-10 06:48:30,493 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 61 transitions, 290 flow [2025-01-10 06:48:30,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 06:48:30,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:30,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:30,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:48:30,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:30,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:30,494 INFO L85 PathProgramCache]: Analyzing trace with hash 170863179, now seen corresponding path program 1 times [2025-01-10 06:48:30,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:30,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393915438] [2025-01-10 06:48:30,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:30,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:30,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:48:30,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:48:30,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:30,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:30,559 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 06:48:30,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:30,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393915438] [2025-01-10 06:48:30,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393915438] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:30,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:30,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:30,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711363324] [2025-01-10 06:48:30,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:30,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:30,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:30,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:30,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:30,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2025-01-10 06:48:30,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 61 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 06:48:30,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:30,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2025-01-10 06:48:30,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:30,741 INFO L124 PetriNetUnfolderBase]: 458/847 cut-off events. [2025-01-10 06:48:30,741 INFO L125 PetriNetUnfolderBase]: For 199/211 co-relation queries the response was YES. [2025-01-10 06:48:30,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 847 events. 458/847 cut-off events. For 199/211 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4188 event pairs, 101 based on Foata normal form. 22/785 useless extension candidates. Maximal degree in co-relation 1766. Up to 393 conditions per place. [2025-01-10 06:48:30,747 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 70 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2025-01-10 06:48:30,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 506 flow [2025-01-10 06:48:30,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:30,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-01-10 06:48:30,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6488095238095238 [2025-01-10 06:48:30,749 INFO L175 Difference]: Start difference. First operand has 54 places, 61 transitions, 290 flow. Second operand 4 states and 109 transitions. [2025-01-10 06:48:30,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 506 flow [2025-01-10 06:48:30,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:30,752 INFO L231 Difference]: Finished difference. Result has 58 places, 63 transitions, 310 flow [2025-01-10 06:48:30,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=58, PETRI_TRANSITIONS=63} [2025-01-10 06:48:30,756 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 19 predicate places. [2025-01-10 06:48:30,757 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 63 transitions, 310 flow [2025-01-10 06:48:30,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 06:48:30,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:30,757 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:30,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:48:30,757 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:30,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash -48144418, now seen corresponding path program 1 times [2025-01-10 06:48:30,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390075987] [2025-01-10 06:48:30,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:30,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:30,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:48:30,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:48:30,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:30,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-10 06:48:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:30,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390075987] [2025-01-10 06:48:30,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390075987] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:30,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:30,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:30,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895922502] [2025-01-10 06:48:30,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:30,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:30,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:30,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:30,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:30,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2025-01-10 06:48:30,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 63 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 06:48:30,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:30,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2025-01-10 06:48:30,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:31,027 INFO L124 PetriNetUnfolderBase]: 450/945 cut-off events. [2025-01-10 06:48:31,027 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2025-01-10 06:48:31,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2164 conditions, 945 events. 450/945 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5316 event pairs, 291 based on Foata normal form. 19/945 useless extension candidates. Maximal degree in co-relation 2067. Up to 624 conditions per place. [2025-01-10 06:48:31,034 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 72 selfloop transitions, 5 changer transitions 1/91 dead transitions. [2025-01-10 06:48:31,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 91 transitions, 600 flow [2025-01-10 06:48:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:31,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:31,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2025-01-10 06:48:31,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-01-10 06:48:31,035 INFO L175 Difference]: Start difference. First operand has 58 places, 63 transitions, 310 flow. Second operand 5 states and 133 transitions. [2025-01-10 06:48:31,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 91 transitions, 600 flow [2025-01-10 06:48:31,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 91 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:31,042 INFO L231 Difference]: Finished difference. Result has 63 places, 65 transitions, 341 flow [2025-01-10 06:48:31,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=341, PETRI_PLACES=63, PETRI_TRANSITIONS=65} [2025-01-10 06:48:31,042 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 24 predicate places. [2025-01-10 06:48:31,042 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 65 transitions, 341 flow [2025-01-10 06:48:31,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 06:48:31,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:31,043 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:31,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:48:31,043 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:31,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1350244889, now seen corresponding path program 1 times [2025-01-10 06:48:31,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:31,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585363828] [2025-01-10 06:48:31,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:31,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:31,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:48:31,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:48:31,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:31,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:31,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:31,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585363828] [2025-01-10 06:48:31,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585363828] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:31,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:31,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009593898] [2025-01-10 06:48:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:31,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:31,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:31,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:31,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2025-01-10 06:48:31,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 65 transitions, 341 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 06:48:31,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:31,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2025-01-10 06:48:31,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:31,282 INFO L124 PetriNetUnfolderBase]: 403/841 cut-off events. [2025-01-10 06:48:31,282 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2025-01-10 06:48:31,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1967 conditions, 841 events. 403/841 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4484 event pairs, 259 based on Foata normal form. 3/827 useless extension candidates. Maximal degree in co-relation 1868. Up to 624 conditions per place. [2025-01-10 06:48:31,309 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 56 selfloop transitions, 4 changer transitions 12/85 dead transitions. [2025-01-10 06:48:31,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 584 flow [2025-01-10 06:48:31,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:31,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2025-01-10 06:48:31,310 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2025-01-10 06:48:31,310 INFO L175 Difference]: Start difference. First operand has 63 places, 65 transitions, 341 flow. Second operand 5 states and 129 transitions. [2025-01-10 06:48:31,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 584 flow [2025-01-10 06:48:31,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 580 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:31,313 INFO L231 Difference]: Finished difference. Result has 67 places, 64 transitions, 339 flow [2025-01-10 06:48:31,313 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=339, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2025-01-10 06:48:31,314 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 28 predicate places. [2025-01-10 06:48:31,314 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 339 flow [2025-01-10 06:48:31,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 06:48:31,314 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:31,314 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-01-10 06:48:31,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:48:31,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:31,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:31,315 INFO L85 PathProgramCache]: Analyzing trace with hash 889829226, now seen corresponding path program 2 times [2025-01-10 06:48:31,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:31,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112837580] [2025-01-10 06:48:31,315 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:31,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:31,325 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-10 06:48:31,331 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-01-10 06:48:31,331 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:31,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:31,361 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 06:48:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112837580] [2025-01-10 06:48:31,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112837580] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:31,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793511345] [2025-01-10 06:48:31,362 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:31,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:31,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:31,364 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 06:48:31,367 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 06:48:31,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-01-10 06:48:31,420 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-01-10 06:48:31,420 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:31,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:31,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:48:31,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:31,445 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 06:48:31,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:31,478 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 06:48:31,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793511345] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:31,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:31,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-01-10 06:48:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432024934] [2025-01-10 06:48:31,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:31,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:31,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:31,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:31,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:31,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:31,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 339 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 06:48:31,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:31,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:31,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:31,605 INFO L124 PetriNetUnfolderBase]: 402/839 cut-off events. [2025-01-10 06:48:31,605 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2025-01-10 06:48:31,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2005 conditions, 839 events. 402/839 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4540 event pairs, 259 based on Foata normal form. 1/814 useless extension candidates. Maximal degree in co-relation 1908. Up to 654 conditions per place. [2025-01-10 06:48:31,611 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 36 selfloop transitions, 16 changer transitions 0/63 dead transitions. [2025-01-10 06:48:31,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 63 transitions, 433 flow [2025-01-10 06:48:31,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2025-01-10 06:48:31,612 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2025-01-10 06:48:31,612 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 339 flow. Second operand 4 states and 80 transitions. [2025-01-10 06:48:31,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 63 transitions, 433 flow [2025-01-10 06:48:31,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 417 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 06:48:31,616 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 345 flow [2025-01-10 06:48:31,616 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=345, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2025-01-10 06:48:31,618 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 26 predicate places. [2025-01-10 06:48:31,618 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 345 flow [2025-01-10 06:48:31,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 06:48:31,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:31,619 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:31,628 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 06:48:31,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:31,819 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:31,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:31,820 INFO L85 PathProgramCache]: Analyzing trace with hash 746791119, now seen corresponding path program 1 times [2025-01-10 06:48:31,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:31,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381030932] [2025-01-10 06:48:31,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:31,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-10 06:48:31,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-10 06:48:31,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:31,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:31,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-10 06:48:31,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:31,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381030932] [2025-01-10 06:48:31,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381030932] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:31,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:31,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:48:31,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395414939] [2025-01-10 06:48:31,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:31,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:48:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:31,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:48:31,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:48:31,925 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2025-01-10 06:48:31,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 345 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 06:48:31,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:31,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2025-01-10 06:48:31,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:32,098 INFO L124 PetriNetUnfolderBase]: 445/928 cut-off events. [2025-01-10 06:48:32,099 INFO L125 PetriNetUnfolderBase]: For 402/420 co-relation queries the response was YES. [2025-01-10 06:48:32,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 928 events. 445/928 cut-off events. For 402/420 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5085 event pairs, 171 based on Foata normal form. 19/929 useless extension candidates. Maximal degree in co-relation 2107. Up to 333 conditions per place. [2025-01-10 06:48:32,105 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 67 selfloop transitions, 10 changer transitions 1/90 dead transitions. [2025-01-10 06:48:32,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 588 flow [2025-01-10 06:48:32,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2025-01-10 06:48:32,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2025-01-10 06:48:32,106 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 345 flow. Second operand 5 states and 141 transitions. [2025-01-10 06:48:32,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 588 flow [2025-01-10 06:48:32,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 90 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:48:32,110 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 336 flow [2025-01-10 06:48:32,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2025-01-10 06:48:32,111 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 28 predicate places. [2025-01-10 06:48:32,111 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 336 flow [2025-01-10 06:48:32,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 06:48:32,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:32,111 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:32,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:48:32,111 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:32,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:32,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1817920278, now seen corresponding path program 1 times [2025-01-10 06:48:32,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:32,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550977367] [2025-01-10 06:48:32,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:32,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:32,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:48:32,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:48:32,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:32,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-10 06:48:32,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:32,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550977367] [2025-01-10 06:48:32,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550977367] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:32,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:32,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:48:32,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393637306] [2025-01-10 06:48:32,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:32,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:48:32,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:32,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:48:32,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:48:32,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2025-01-10 06:48:32,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 336 flow. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 06:48:32,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:32,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2025-01-10 06:48:32,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:32,346 INFO L124 PetriNetUnfolderBase]: 400/850 cut-off events. [2025-01-10 06:48:32,346 INFO L125 PetriNetUnfolderBase]: For 466/474 co-relation queries the response was YES. [2025-01-10 06:48:32,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2074 conditions, 850 events. 400/850 cut-off events. For 466/474 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4472 event pairs, 142 based on Foata normal form. 3/836 useless extension candidates. Maximal degree in co-relation 1978. Up to 361 conditions per place. [2025-01-10 06:48:32,351 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 53 selfloop transitions, 9 changer transitions 8/82 dead transitions. [2025-01-10 06:48:32,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 82 transitions, 537 flow [2025-01-10 06:48:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 135 transitions. [2025-01-10 06:48:32,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2025-01-10 06:48:32,353 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 336 flow. Second operand 5 states and 135 transitions. [2025-01-10 06:48:32,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 82 transitions, 537 flow [2025-01-10 06:48:32,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 82 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:32,358 INFO L231 Difference]: Finished difference. Result has 70 places, 62 transitions, 336 flow [2025-01-10 06:48:32,359 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2025-01-10 06:48:32,360 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 31 predicate places. [2025-01-10 06:48:32,360 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 336 flow [2025-01-10 06:48:32,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 06:48:32,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:32,361 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-01-10 06:48:32,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 06:48:32,361 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:32,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1672422431, now seen corresponding path program 1 times [2025-01-10 06:48:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:32,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766270484] [2025-01-10 06:48:32,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:32,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:48:32,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:48:32,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:32,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:32,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:32,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766270484] [2025-01-10 06:48:32,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766270484] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:32,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971085000] [2025-01-10 06:48:32,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:32,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:32,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:32,549 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 06:48:32,552 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 06:48:32,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:48:32,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:48:32,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:32,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:32,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-10 06:48:32,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:32,672 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:32,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971085000] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:32,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:32,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-01-10 06:48:32,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290341578] [2025-01-10 06:48:32,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:32,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-10 06:48:32,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:32,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-10 06:48:32,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-01-10 06:48:32,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:32,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 336 flow. Second operand has 24 states, 24 states have (on average 15.083333333333334) internal successors, (362), 24 states have internal predecessors, (362), 0 states have call successors, (0), 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 06:48:32,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:32,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:32,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:33,264 INFO L124 PetriNetUnfolderBase]: 416/911 cut-off events. [2025-01-10 06:48:33,265 INFO L125 PetriNetUnfolderBase]: For 784/784 co-relation queries the response was YES. [2025-01-10 06:48:33,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 911 events. 416/911 cut-off events. For 784/784 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4851 event pairs, 256 based on Foata normal form. 12/891 useless extension candidates. Maximal degree in co-relation 2002. Up to 642 conditions per place. [2025-01-10 06:48:33,270 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 26 selfloop transitions, 61 changer transitions 0/98 dead transitions. [2025-01-10 06:48:33,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 98 transitions, 756 flow [2025-01-10 06:48:33,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-10 06:48:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-01-10 06:48:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 396 transitions. [2025-01-10 06:48:33,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2025-01-10 06:48:33,273 INFO L175 Difference]: Start difference. First operand has 70 places, 62 transitions, 336 flow. Second operand 22 states and 396 transitions. [2025-01-10 06:48:33,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 98 transitions, 756 flow [2025-01-10 06:48:33,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 98 transitions, 722 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-01-10 06:48:33,278 INFO L231 Difference]: Finished difference. Result has 90 places, 98 transitions, 716 flow [2025-01-10 06:48:33,278 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=716, PETRI_PLACES=90, PETRI_TRANSITIONS=98} [2025-01-10 06:48:33,281 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 51 predicate places. [2025-01-10 06:48:33,281 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 98 transitions, 716 flow [2025-01-10 06:48:33,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 15.083333333333334) internal successors, (362), 24 states have internal predecessors, (362), 0 states have call successors, (0), 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 06:48:33,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:33,282 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:33,291 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 06:48:33,482 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,SelfDestructingSolverStorable11 [2025-01-10 06:48:33,483 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:33,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -14545124, now seen corresponding path program 1 times [2025-01-10 06:48:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:33,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707670256] [2025-01-10 06:48:33,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:33,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:33,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:48:33,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:48:33,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:33,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:33,649 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:33,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:33,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707670256] [2025-01-10 06:48:33,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707670256] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:33,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290366874] [2025-01-10 06:48:33,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:33,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:33,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:33,652 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 06:48:33,654 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 06:48:33,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-10 06:48:33,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-10 06:48:33,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:33,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:33,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 06:48:33,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:33,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:34,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290366874] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:34,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:34,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2025-01-10 06:48:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190990137] [2025-01-10 06:48:34,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:34,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-10 06:48:34,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:34,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-10 06:48:34,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2025-01-10 06:48:34,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2025-01-10 06:48:34,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 98 transitions, 716 flow. Second operand has 21 states, 21 states have (on average 13.80952380952381) internal successors, (290), 21 states have internal predecessors, (290), 0 states have call successors, (0), 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 06:48:34,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:34,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2025-01-10 06:48:34,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:35,211 INFO L124 PetriNetUnfolderBase]: 1220/2497 cut-off events. [2025-01-10 06:48:35,211 INFO L125 PetriNetUnfolderBase]: For 1468/1518 co-relation queries the response was YES. [2025-01-10 06:48:35,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6081 conditions, 2497 events. 1220/2497 cut-off events. For 1468/1518 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 16922 event pairs, 411 based on Foata normal form. 66/2509 useless extension candidates. Maximal degree in co-relation 5907. Up to 360 conditions per place. [2025-01-10 06:48:35,226 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 189 selfloop transitions, 70 changer transitions 39/308 dead transitions. [2025-01-10 06:48:35,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 308 transitions, 2379 flow [2025-01-10 06:48:35,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-10 06:48:35,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-01-10 06:48:35,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 519 transitions. [2025-01-10 06:48:35,229 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4413265306122449 [2025-01-10 06:48:35,229 INFO L175 Difference]: Start difference. First operand has 90 places, 98 transitions, 716 flow. Second operand 28 states and 519 transitions. [2025-01-10 06:48:35,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 308 transitions, 2379 flow [2025-01-10 06:48:35,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 308 transitions, 2073 flow, removed 101 selfloop flow, removed 9 redundant places. [2025-01-10 06:48:35,240 INFO L231 Difference]: Finished difference. Result has 114 places, 129 transitions, 1037 flow [2025-01-10 06:48:35,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1037, PETRI_PLACES=114, PETRI_TRANSITIONS=129} [2025-01-10 06:48:35,240 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 75 predicate places. [2025-01-10 06:48:35,241 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 129 transitions, 1037 flow [2025-01-10 06:48:35,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 13.80952380952381) internal successors, (290), 21 states have internal predecessors, (290), 0 states have call successors, (0), 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 06:48:35,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:35,241 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:35,250 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 06:48:35,446 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,SelfDestructingSolverStorable12 [2025-01-10 06:48:35,446 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:35,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:35,446 INFO L85 PathProgramCache]: Analyzing trace with hash -308666775, now seen corresponding path program 1 times [2025-01-10 06:48:35,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:35,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045053674] [2025-01-10 06:48:35,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:35,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:35,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:48:35,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:48:35,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:35,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:35,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045053674] [2025-01-10 06:48:35,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045053674] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:35,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889170807] [2025-01-10 06:48:35,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:35,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:35,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:35,526 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 06:48:35,529 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 06:48:35,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:48:35,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:48:35,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:35,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:35,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 06:48:35,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:35,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:35,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889170807] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:35,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:35,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 8] total 18 [2025-01-10 06:48:35,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307463985] [2025-01-10 06:48:35,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:35,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 06:48:35,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:35,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 06:48:35,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-01-10 06:48:36,037 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2025-01-10 06:48:36,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 129 transitions, 1037 flow. Second operand has 19 states, 19 states have (on average 14.263157894736842) internal successors, (271), 19 states have internal predecessors, (271), 0 states have call successors, (0), 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 06:48:36,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:36,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2025-01-10 06:48:36,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:36,674 INFO L124 PetriNetUnfolderBase]: 1056/2147 cut-off events. [2025-01-10 06:48:36,674 INFO L125 PetriNetUnfolderBase]: For 2723/2733 co-relation queries the response was YES. [2025-01-10 06:48:36,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5750 conditions, 2147 events. 1056/2147 cut-off events. For 2723/2733 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 13985 event pairs, 324 based on Foata normal form. 70/2136 useless extension candidates. Maximal degree in co-relation 5568. Up to 508 conditions per place. [2025-01-10 06:48:36,688 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 66 selfloop transitions, 83 changer transitions 38/196 dead transitions. [2025-01-10 06:48:36,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 196 transitions, 1732 flow [2025-01-10 06:48:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 06:48:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-01-10 06:48:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 243 transitions. [2025-01-10 06:48:36,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44505494505494503 [2025-01-10 06:48:36,691 INFO L175 Difference]: Start difference. First operand has 114 places, 129 transitions, 1037 flow. Second operand 13 states and 243 transitions. [2025-01-10 06:48:36,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 196 transitions, 1732 flow [2025-01-10 06:48:36,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 196 transitions, 1679 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-01-10 06:48:36,703 INFO L231 Difference]: Finished difference. Result has 118 places, 122 transitions, 1106 flow [2025-01-10 06:48:36,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=983, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1106, PETRI_PLACES=118, PETRI_TRANSITIONS=122} [2025-01-10 06:48:36,703 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 79 predicate places. [2025-01-10 06:48:36,704 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 122 transitions, 1106 flow [2025-01-10 06:48:36,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.263157894736842) internal successors, (271), 19 states have internal predecessors, (271), 0 states have call successors, (0), 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 06:48:36,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:36,704 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:36,712 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 06:48:36,905 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,SelfDestructingSolverStorable13 [2025-01-10 06:48:36,905 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1969968550, now seen corresponding path program 1 times [2025-01-10 06:48:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172427275] [2025-01-10 06:48:36,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:36,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:36,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 06:48:36,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 06:48:36,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:36,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-10 06:48:37,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172427275] [2025-01-10 06:48:37,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172427275] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227036575] [2025-01-10 06:48:37,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:37,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:37,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:37,022 INFO L229 MonitoredProcess]: Starting monitored process 8 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 06:48:37,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:48:37,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-10 06:48:37,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-10 06:48:37,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:37,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:37,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-10 06:48:37,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-10 06:48:37,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-10 06:48:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227036575] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:37,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 17 [2025-01-10 06:48:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861724638] [2025-01-10 06:48:37,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:37,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:48:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:37,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:48:37,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:48:37,508 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 42 [2025-01-10 06:48:37,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 1106 flow. Second operand has 18 states, 18 states have (on average 14.555555555555555) internal successors, (262), 18 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 06:48:37,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:37,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 42 [2025-01-10 06:48:37,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:37,963 INFO L124 PetriNetUnfolderBase]: 790/1586 cut-off events. [2025-01-10 06:48:37,963 INFO L125 PetriNetUnfolderBase]: For 2687/2705 co-relation queries the response was YES. [2025-01-10 06:48:37,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4643 conditions, 1586 events. 790/1586 cut-off events. For 2687/2705 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8858 event pairs, 182 based on Foata normal form. 38/1605 useless extension candidates. Maximal degree in co-relation 4446. Up to 335 conditions per place. [2025-01-10 06:48:37,973 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 123 selfloop transitions, 53 changer transitions 55/240 dead transitions. [2025-01-10 06:48:37,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 240 transitions, 2245 flow [2025-01-10 06:48:37,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-10 06:48:37,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-01-10 06:48:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 323 transitions. [2025-01-10 06:48:37,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2025-01-10 06:48:37,975 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 1106 flow. Second operand 17 states and 323 transitions. [2025-01-10 06:48:37,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 240 transitions, 2245 flow [2025-01-10 06:48:37,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 240 transitions, 2164 flow, removed 22 selfloop flow, removed 10 redundant places. [2025-01-10 06:48:37,988 INFO L231 Difference]: Finished difference. Result has 118 places, 122 transitions, 1178 flow [2025-01-10 06:48:37,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1178, PETRI_PLACES=118, PETRI_TRANSITIONS=122} [2025-01-10 06:48:37,989 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 79 predicate places. [2025-01-10 06:48:37,989 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 122 transitions, 1178 flow [2025-01-10 06:48:37,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.555555555555555) internal successors, (262), 18 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 06:48:37,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:37,990 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:37,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 06:48:38,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:38,194 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:38,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash -942596130, now seen corresponding path program 2 times [2025-01-10 06:48:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:38,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804034023] [2025-01-10 06:48:38,195 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:38,204 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-10 06:48:38,213 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 25 statements. [2025-01-10 06:48:38,213 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:38,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-10 06:48:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:38,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804034023] [2025-01-10 06:48:38,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804034023] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:38,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886783703] [2025-01-10 06:48:38,248 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:38,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:38,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:38,251 INFO L229 MonitoredProcess]: Starting monitored process 9 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 06:48:38,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 06:48:38,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-10 06:48:38,318 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 25 statements. [2025-01-10 06:48:38,318 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:38,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:38,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:48:38,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-10 06:48:38,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:38,389 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-10 06:48:38,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886783703] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:38,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:38,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-01-10 06:48:38,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355698946] [2025-01-10 06:48:38,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:38,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:38,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:38,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:38,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:48:38,408 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2025-01-10 06:48:38,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 1178 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 06:48:38,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:38,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2025-01-10 06:48:38,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:38,585 INFO L124 PetriNetUnfolderBase]: 710/1468 cut-off events. [2025-01-10 06:48:38,585 INFO L125 PetriNetUnfolderBase]: For 2234/2244 co-relation queries the response was YES. [2025-01-10 06:48:38,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4259 conditions, 1468 events. 710/1468 cut-off events. For 2234/2244 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 8135 event pairs, 305 based on Foata normal form. 0/1443 useless extension candidates. Maximal degree in co-relation 4059. Up to 820 conditions per place. [2025-01-10 06:48:38,596 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 129 selfloop transitions, 6 changer transitions 3/148 dead transitions. [2025-01-10 06:48:38,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 148 transitions, 1589 flow [2025-01-10 06:48:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:38,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2025-01-10 06:48:38,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.580952380952381 [2025-01-10 06:48:38,597 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 1178 flow. Second operand 5 states and 122 transitions. [2025-01-10 06:48:38,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 148 transitions, 1589 flow [2025-01-10 06:48:38,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 148 transitions, 1509 flow, removed 8 selfloop flow, removed 11 redundant places. [2025-01-10 06:48:38,608 INFO L231 Difference]: Finished difference. Result has 107 places, 121 transitions, 1129 flow [2025-01-10 06:48:38,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1129, PETRI_PLACES=107, PETRI_TRANSITIONS=121} [2025-01-10 06:48:38,609 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 68 predicate places. [2025-01-10 06:48:38,609 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 121 transitions, 1129 flow [2025-01-10 06:48:38,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 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 06:48:38,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:38,609 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:38,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:38,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-10 06:48:38,810 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:38,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1160953517, now seen corresponding path program 2 times [2025-01-10 06:48:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:38,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857517507] [2025-01-10 06:48:38,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:38,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:38,825 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-10 06:48:38,832 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 31 statements. [2025-01-10 06:48:38,832 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:38,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:38,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-10 06:48:38,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:38,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857517507] [2025-01-10 06:48:38,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857517507] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:38,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339820169] [2025-01-10 06:48:38,874 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:38,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:38,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:38,876 INFO L229 MonitoredProcess]: Starting monitored process 10 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 06:48:38,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-10 06:48:38,932 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 31 statements into 2 equivalence classes. [2025-01-10 06:48:38,947 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 31 statements. [2025-01-10 06:48:38,947 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:38,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:38,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:48:38,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:38,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-10 06:48:38,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-10 06:48:39,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339820169] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:39,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:39,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-01-10 06:48:39,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760562759] [2025-01-10 06:48:39,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:39,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:39,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:39,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:39,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:48:39,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2025-01-10 06:48:39,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 121 transitions, 1129 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 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 06:48:39,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:39,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2025-01-10 06:48:39,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:39,178 INFO L124 PetriNetUnfolderBase]: 550/1219 cut-off events. [2025-01-10 06:48:39,178 INFO L125 PetriNetUnfolderBase]: For 2239/2239 co-relation queries the response was YES. [2025-01-10 06:48:39,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3659 conditions, 1219 events. 550/1219 cut-off events. For 2239/2239 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6705 event pairs, 253 based on Foata normal form. 25/1234 useless extension candidates. Maximal degree in co-relation 3464. Up to 659 conditions per place. [2025-01-10 06:48:39,182 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 80 selfloop transitions, 1 changer transitions 57/141 dead transitions. [2025-01-10 06:48:39,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 141 transitions, 1499 flow [2025-01-10 06:48:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:48:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:48:39,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-01-10 06:48:39,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2025-01-10 06:48:39,184 INFO L175 Difference]: Start difference. First operand has 107 places, 121 transitions, 1129 flow. Second operand 5 states and 117 transitions. [2025-01-10 06:48:39,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 141 transitions, 1499 flow [2025-01-10 06:48:39,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 141 transitions, 1466 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-01-10 06:48:39,191 INFO L231 Difference]: Finished difference. Result has 105 places, 84 transitions, 956 flow [2025-01-10 06:48:39,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=956, PETRI_PLACES=105, PETRI_TRANSITIONS=84} [2025-01-10 06:48:39,191 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 66 predicate places. [2025-01-10 06:48:39,191 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 84 transitions, 956 flow [2025-01-10 06:48:39,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 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 06:48:39,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:39,192 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1] [2025-01-10 06:48:39,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 06:48:39,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:39,392 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-01-10 06:48:39,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash -592203583, now seen corresponding path program 2 times [2025-01-10 06:48:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:39,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604433907] [2025-01-10 06:48:39,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:39,405 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-10 06:48:39,410 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-01-10 06:48:39,410 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:39,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 06:48:39,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:39,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604433907] [2025-01-10 06:48:39,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604433907] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:39,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985769058] [2025-01-10 06:48:39,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:39,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:39,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:39,457 INFO L229 MonitoredProcess]: Starting monitored process 11 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 06:48:39,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-10 06:48:39,520 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-01-10 06:48:39,531 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 35 statements. [2025-01-10 06:48:39,531 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:39,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:39,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:48:39,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:39,580 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 06:48:39,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 06:48:39,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985769058] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:39,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:39,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-01-10 06:48:39,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344815362] [2025-01-10 06:48:39,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:39,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:48:39,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:39,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:48:39,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:48:39,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2025-01-10 06:48:39,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 84 transitions, 956 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 06:48:39,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:39,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2025-01-10 06:48:39,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:39,678 INFO L124 PetriNetUnfolderBase]: 12/144 cut-off events. [2025-01-10 06:48:39,678 INFO L125 PetriNetUnfolderBase]: For 708/708 co-relation queries the response was YES. [2025-01-10 06:48:39,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 144 events. 12/144 cut-off events. For 708/708 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 360 event pairs, 0 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 708. Up to 56 conditions per place. [2025-01-10 06:48:39,679 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2025-01-10 06:48:39,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 83 transitions, 1096 flow [2025-01-10 06:48:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2025-01-10 06:48:39,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2025-01-10 06:48:39,683 INFO L175 Difference]: Start difference. First operand has 105 places, 84 transitions, 956 flow. Second operand 4 states and 63 transitions. [2025-01-10 06:48:39,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 83 transitions, 1096 flow [2025-01-10 06:48:39,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 83 transitions, 982 flow, removed 3 selfloop flow, removed 15 redundant places. [2025-01-10 06:48:39,687 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2025-01-10 06:48:39,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2025-01-10 06:48:39,688 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 24 predicate places. [2025-01-10 06:48:39,688 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2025-01-10 06:48:39,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 06:48:39,691 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2025-01-10 06:48:39,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2025-01-10 06:48:39,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:39,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-10 06:48:39,896 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:39,901 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:48:39,901 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:48:39,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:48:39 BasicIcfg [2025-01-10 06:48:39,906 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:48:39,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:48:39,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:48:39,907 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:48:39,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:27" (3/4) ... [2025-01-10 06:48:39,910 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:48:39,912 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-01-10 06:48:39,912 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-01-10 06:48:39,919 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2025-01-10 06:48:39,920 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2025-01-10 06:48:39,921 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-10 06:48:39,921 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-10 06:48:39,997 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:48:39,998 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:48:39,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:48:39,999 INFO L158 Benchmark]: Toolchain (without parser) took 13185.43ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 113.8MB in the beginning and 103.2MB in the end (delta: 10.6MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2025-01-10 06:48:39,999 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:48:40,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.03ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 101.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:48:40,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.08ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:48:40,001 INFO L158 Benchmark]: Boogie Preprocessor took 58.82ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:48:40,001 INFO L158 Benchmark]: RCFGBuilder took 639.90ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 60.0MB in the end (delta: 38.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-10 06:48:40,001 INFO L158 Benchmark]: TraceAbstraction took 12092.51ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 59.6MB in the beginning and 109.0MB in the end (delta: -49.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2025-01-10 06:48:40,002 INFO L158 Benchmark]: Witness Printer took 90.70ms. Allocated memory is still 218.1MB. Free memory was 109.0MB in the beginning and 103.2MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:48:40,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.03ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 101.9MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.08ms. Allocated memory is still 142.6MB. Free memory was 101.9MB in the beginning and 100.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.82ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 639.90ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 60.0MB in the end (delta: 38.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12092.51ms. Allocated memory was 142.6MB in the beginning and 218.1MB in the end (delta: 75.5MB). Free memory was 59.6MB in the beginning and 109.0MB in the end (delta: -49.4MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * Witness Printer took 90.70ms. Allocated memory is still 218.1MB. Free memory was 109.0MB in the beginning and 103.2MB in the end (delta: 5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 57 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.0s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1618 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1490 mSDsluCounter, 1331 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1248 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4269 IncrementalHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 83 mSDtfsCounter, 4269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 519 GetRequests, 316 SyntacticMatches, 8 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1178occurred in iteration=15, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 490 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 2334 SizeOfPredicates, 41 NumberOfNonLiveVariables, 1212 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 37 InterpolantComputations, 9 PerfectInterpolantSequences, 649/875 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:48:40,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE