./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/pthread-wmm/mix055_tso.oepc.i -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 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:59:37,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:59:37,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 13:59:37,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:59:37,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:59:37,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:59:37,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:59:37,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:59:37,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:59:37,146 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:59:37,146 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:59:37,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:59:37,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:59:37,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:59:37,148 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:59:37,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:59:37,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:59:37,149 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:59:37,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:59:37,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:59:37,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:59:37,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:59:37,151 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:59:37,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:59:37,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:59:37,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:59:37,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:59:37,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:59:37,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:59:37,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:59:37,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:59:37,153 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 -> 9ec75f624fee0326f6dc01ebf4c0afe8f65e83cfa5c5726cd79e55765f7366f9 [2025-02-08 13:59:37,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:59:37,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:59:37,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:59:37,433 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:59:37,433 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:59:37,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2025-02-08 13:59:38,817 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/405e34c45/0e7983d35e6c40e88efb3fe868dbdb38/FLAG0993481b2 [2025-02-08 13:59:39,149 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:59:39,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055_tso.oepc.i [2025-02-08 13:59:39,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/405e34c45/0e7983d35e6c40e88efb3fe868dbdb38/FLAG0993481b2 [2025-02-08 13:59:39,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/405e34c45/0e7983d35e6c40e88efb3fe868dbdb38 [2025-02-08 13:59:39,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:59:39,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:59:39,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:59:39,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:59:39,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:59:39,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e78e641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39, skipping insertion in model container [2025-02-08 13:59:39,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:59:39,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:59:39,632 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:59:39,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:59:39,745 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:59:39,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39 WrapperNode [2025-02-08 13:59:39,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:59:39,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:59:39,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:59:39,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:59:39,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,805 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2025-02-08 13:59:39,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:59:39,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:59:39,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:59:39,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:59:39,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,829 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,852 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 13:59:39,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,862 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:59:39,882 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:59:39,883 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:59:39,883 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:59:39,884 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (1/1) ... [2025-02-08 13:59:39,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:59:39,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:59:39,921 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) [2025-02-08 13:59:39,926 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 [2025-02-08 13:59:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 13:59:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:59:39,948 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 13:59:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 13:59:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 13:59:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 13:59:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 13:59:39,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:59:39,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:59:39,951 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 13:59:40,076 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:59:40,077 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:59:40,434 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:59:40,434 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:59:40,674 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:59:40,675 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:59:40,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:40 BoogieIcfgContainer [2025-02-08 13:59:40,675 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:59:40,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:59:40,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:59:40,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:59:40,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:59:39" (1/3) ... [2025-02-08 13:59:40,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ce1820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:40, skipping insertion in model container [2025-02-08 13:59:40,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:59:39" (2/3) ... [2025-02-08 13:59:40,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ce1820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:59:40, skipping insertion in model container [2025-02-08 13:59:40,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:40" (3/3) ... [2025-02-08 13:59:40,687 INFO L128 eAbstractionObserver]: Analyzing ICFG mix055_tso.oepc.i [2025-02-08 13:59:40,701 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:59:40,703 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix055_tso.oepc.i that has 5 procedures, 51 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-02-08 13:59:40,703 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:59:40,771 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 13:59:40,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 116 flow [2025-02-08 13:59:40,846 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2025-02-08 13:59:40,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:59:40,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 13:59:40,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 50 transitions, 116 flow [2025-02-08 13:59:40,860 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 46 transitions, 104 flow [2025-02-08 13:59:40,872 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 13:59:40,882 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;@2481945c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 13:59:40,882 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-02-08 13:59:40,889 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 13:59:40,890 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-08 13:59:40,890 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:59:40,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:59:40,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:59:40,891 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:59:40,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:59:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash 999845782, now seen corresponding path program 1 times [2025-02-08 13:59:40,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:59:40,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065330064] [2025-02-08 13:59:40,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:59:40,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:59:40,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 13:59:41,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 13:59:41,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:59:41,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:59:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:59:41,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:59:41,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065330064] [2025-02-08 13:59:41,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065330064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:59:41,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:59:41,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 13:59:41,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073602964] [2025-02-08 13:59:41,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:59:41,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:59:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:59:41,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:59:41,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:59:41,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-02-08 13:59:41,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:41,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:59:41,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-02-08 13:59:41,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:59:48,164 INFO L124 PetriNetUnfolderBase]: 70107/92355 cut-off events. [2025-02-08 13:59:48,164 INFO L125 PetriNetUnfolderBase]: For 386/386 co-relation queries the response was YES. [2025-02-08 13:59:48,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185503 conditions, 92355 events. 70107/92355 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 2803. Compared 554969 event pairs, 23427 based on Foata normal form. 0/75380 useless extension candidates. Maximal degree in co-relation 185491. Up to 84897 conditions per place. [2025-02-08 13:59:48,871 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 65 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2025-02-08 13:59:48,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 309 flow [2025-02-08 13:59:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:59:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 13:59:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-08 13:59:48,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2025-02-08 13:59:48,886 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 104 flow. Second operand 3 states and 102 transitions. [2025-02-08 13:59:48,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 309 flow [2025-02-08 13:59:48,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 302 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 13:59:48,902 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 147 flow [2025-02-08 13:59:48,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-02-08 13:59:48,909 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2025-02-08 13:59:48,909 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 147 flow [2025-02-08 13:59:48,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:48,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:59:48,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:59:48,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 13:59:48,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:59:48,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:59:48,912 INFO L85 PathProgramCache]: Analyzing trace with hash 13980662, now seen corresponding path program 1 times [2025-02-08 13:59:48,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:59:48,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168225912] [2025-02-08 13:59:48,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:59:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:59:48,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:59:48,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:59:48,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:59:48,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:59:49,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:59:49,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:59:49,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168225912] [2025-02-08 13:59:49,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168225912] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:59:49,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:59:49,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:59:49,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406282622] [2025-02-08 13:59:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:59:49,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:59:49,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:59:49,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:59:49,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:59:49,157 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-02-08 13:59:49,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 147 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:49,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:59:49,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-02-08 13:59:49,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:59:54,273 INFO L124 PetriNetUnfolderBase]: 56249/75357 cut-off events. [2025-02-08 13:59:54,274 INFO L125 PetriNetUnfolderBase]: For 4091/4091 co-relation queries the response was YES. [2025-02-08 13:59:54,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171322 conditions, 75357 events. 56249/75357 cut-off events. For 4091/4091 co-relation queries the response was YES. Maximal size of possible extension queue 2188. Compared 460401 event pairs, 11375 based on Foata normal form. 0/66118 useless extension candidates. Maximal degree in co-relation 171311. Up to 36850 conditions per place. [2025-02-08 13:59:54,763 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 91 selfloop transitions, 13 changer transitions 0/108 dead transitions. [2025-02-08 13:59:54,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 108 transitions, 497 flow [2025-02-08 13:59:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:59:54,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:59:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-02-08 13:59:54,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-02-08 13:59:54,767 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 147 flow. Second operand 4 states and 140 transitions. [2025-02-08 13:59:54,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 108 transitions, 497 flow [2025-02-08 13:59:54,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 108 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 13:59:54,786 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 245 flow [2025-02-08 13:59:54,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2025-02-08 13:59:54,787 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2025-02-08 13:59:54,787 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 245 flow [2025-02-08 13:59:54,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:54,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:59:54,788 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:59:54,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 13:59:54,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:59:54,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:59:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash 13980661, now seen corresponding path program 1 times [2025-02-08 13:59:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:59:54,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354961833] [2025-02-08 13:59:54,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:59:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:59:54,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:59:54,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:59:54,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:59:54,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:59:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:59:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:59:54,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354961833] [2025-02-08 13:59:54,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354961833] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:59:54,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:59:54,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:59:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658840306] [2025-02-08 13:59:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:59:54,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:59:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:59:54,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:59:54,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:59:54,950 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-02-08 13:59:54,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:54,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:59:54,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-02-08 13:59:54,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:59:58,235 INFO L124 PetriNetUnfolderBase]: 35051/46435 cut-off events. [2025-02-08 13:59:58,235 INFO L125 PetriNetUnfolderBase]: For 33018/33018 co-relation queries the response was YES. [2025-02-08 13:59:58,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113285 conditions, 46435 events. 35051/46435 cut-off events. For 33018/33018 co-relation queries the response was YES. Maximal size of possible extension queue 1331. Compared 263449 event pairs, 10147 based on Foata normal form. 4720/49180 useless extension candidates. Maximal degree in co-relation 113271. Up to 38976 conditions per place. [2025-02-08 13:59:58,464 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 65 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2025-02-08 13:59:58,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 383 flow [2025-02-08 13:59:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:59:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:59:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-02-08 13:59:58,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.51 [2025-02-08 13:59:58,467 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 245 flow. Second operand 4 states and 102 transitions. [2025-02-08 13:59:58,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 383 flow [2025-02-08 13:59:59,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 360 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 13:59:59,238 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 176 flow [2025-02-08 13:59:59,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-02-08 13:59:59,239 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2025-02-08 13:59:59,239 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 176 flow [2025-02-08 13:59:59,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:59,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:59:59,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:59:59,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 13:59:59,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:59:59,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:59:59,240 INFO L85 PathProgramCache]: Analyzing trace with hash -616823912, now seen corresponding path program 1 times [2025-02-08 13:59:59,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:59:59,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625227721] [2025-02-08 13:59:59,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:59:59,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:59:59,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 13:59:59,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 13:59:59,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:59:59,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:59:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:59:59,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:59:59,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625227721] [2025-02-08 13:59:59,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625227721] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:59:59,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:59:59,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 13:59:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319503281] [2025-02-08 13:59:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:59:59,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 13:59:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:59:59,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 13:59:59,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:59:59,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-02-08 13:59:59,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 13:59:59,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:59:59,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-02-08 13:59:59,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:02,282 INFO L124 PetriNetUnfolderBase]: 30683/40531 cut-off events. [2025-02-08 14:00:02,282 INFO L125 PetriNetUnfolderBase]: For 14518/14518 co-relation queries the response was YES. [2025-02-08 14:00:02,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93694 conditions, 40531 events. 30683/40531 cut-off events. For 14518/14518 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 225544 event pairs, 5631 based on Foata normal form. 0/40260 useless extension candidates. Maximal degree in co-relation 93681. Up to 15488 conditions per place. [2025-02-08 14:00:02,477 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 107 selfloop transitions, 13 changer transitions 4/128 dead transitions. [2025-02-08 14:00:02,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 128 transitions, 608 flow [2025-02-08 14:00:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:00:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:00:02,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2025-02-08 14:00:02,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.672 [2025-02-08 14:00:02,479 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 176 flow. Second operand 5 states and 168 transitions. [2025-02-08 14:00:02,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 128 transitions, 608 flow [2025-02-08 14:00:02,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 128 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:00:02,497 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 212 flow [2025-02-08 14:00:02,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2025-02-08 14:00:02,497 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2025-02-08 14:00:02,498 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 212 flow [2025-02-08 14:00:02,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:00:02,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:00:02,498 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:00:02,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:00:02,498 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:00:02,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:00:02,499 INFO L85 PathProgramCache]: Analyzing trace with hash -287797795, now seen corresponding path program 1 times [2025-02-08 14:00:02,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:00:02,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022642420] [2025-02-08 14:00:02,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:00:02,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:00:02,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 14:00:02,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 14:00:02,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:00:02,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:00:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:00:02,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:00:02,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022642420] [2025-02-08 14:00:02,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022642420] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:00:02,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:00:02,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:00:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718825120] [2025-02-08 14:00:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:00:02,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:00:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:00:02,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:00:02,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:00:02,633 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-02-08 14:00:02,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:00:02,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:00:02,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-02-08 14:00:02,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:05,487 INFO L124 PetriNetUnfolderBase]: 29723/39235 cut-off events. [2025-02-08 14:00:05,488 INFO L125 PetriNetUnfolderBase]: For 25282/25282 co-relation queries the response was YES. [2025-02-08 14:00:05,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97641 conditions, 39235 events. 29723/39235 cut-off events. For 25282/25282 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 218955 event pairs, 5463 based on Foata normal form. 224/39412 useless extension candidates. Maximal degree in co-relation 97627. Up to 15488 conditions per place. [2025-02-08 14:00:05,592 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2025-02-08 14:00:05,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 572 flow [2025-02-08 14:00:05,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:00:05,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:00:05,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2025-02-08 14:00:05,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.56 [2025-02-08 14:00:05,595 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 212 flow. Second operand 6 states and 168 transitions. [2025-02-08 14:00:05,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 572 flow [2025-02-08 14:00:06,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 120 transitions, 517 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 14:00:06,544 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-02-08 14:00:06,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-02-08 14:00:06,545 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2025-02-08 14:00:06,545 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-02-08 14:00:06,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-02-08 14:00:06,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-02-08 14:00:06,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-02-08 14:00:06,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:00:06,550 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 14:00:06,556 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:00:06,556 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:00:06,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:00:06 BasicIcfg [2025-02-08 14:00:06,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:00:06,563 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:00:06,563 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:00:06,563 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:00:06,564 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:59:40" (3/4) ... [2025-02-08 14:00:06,565 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:00:06,566 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 14:00:06,566 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 14:00:06,566 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 14:00:06,566 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-08 14:00:06,570 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-02-08 14:00:06,570 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 14:00:06,570 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 14:00:06,570 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:00:06,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:00:06,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:00:06,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:00:06,628 INFO L158 Benchmark]: Toolchain (without parser) took 27443.48ms. Allocated memory was 142.6MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 106.4MB in the beginning and 10.3GB in the end (delta: -10.2GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2025-02-08 14:00:06,628 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:06,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.93ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 82.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 14:00:06,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.93ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:06,629 INFO L158 Benchmark]: Boogie Preprocessor took 68.40ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 77.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:06,629 INFO L158 Benchmark]: IcfgBuilder took 792.92ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 82.4MB in the end (delta: -6.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2025-02-08 14:00:06,630 INFO L158 Benchmark]: TraceAbstraction took 25884.51ms. Allocated memory was 142.6MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 81.7MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2025-02-08 14:00:06,630 INFO L158 Benchmark]: Witness Printer took 64.42ms. Allocated memory is still 11.9GB. Free memory was 10.4GB in the beginning and 10.3GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:06,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 115.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.93ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 82.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.93ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 68.40ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 77.0MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 792.92ms. Allocated memory is still 142.6MB. Free memory was 76.1MB in the beginning and 82.4MB in the end (delta: -6.3MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 25884.51ms. Allocated memory was 142.6MB in the beginning and 11.9GB in the end (delta: 11.7GB). Free memory was 81.7MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Witness Printer took 64.42ms. Allocated memory is still 11.9GB. Free memory was 10.4GB in the beginning and 10.3GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 831]: 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 9 procedures, 91 locations, 20 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: 25.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 0 mSDtfsCounter, 590 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=2, InterpolantAutomatonStates: 22, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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! [2025-02-08 14:00:06,651 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