./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:39:55,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:39:55,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:39:55,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:39:55,362 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:39:55,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:39:55,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:39:55,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:39:55,388 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:39:55,388 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:39:55,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:39:55,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:39:55,389 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:39:55,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:39:55,389 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:39:55,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:39:55,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:39:55,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:55,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:39:55,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:39:55,391 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/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 -> bf26be9bd61f36f1b6136fc4e500a91a95d08528025fd00027577283116c4a35 [2025-03-09 06:39:55,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:39:55,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:39:55,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:39:55,638 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:39:55,639 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:39:55,641 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2025-03-09 06:39:56,790 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f191a683a/e95ecb6019d148dca40be10bb9e4f94a/FLAGf7cb2fc7c [2025-03-09 06:39:57,050 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:39:57,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-min-max-1.wvr.c [2025-03-09 06:39:57,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f191a683a/e95ecb6019d148dca40be10bb9e4f94a/FLAGf7cb2fc7c [2025-03-09 06:39:57,367 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f191a683a/e95ecb6019d148dca40be10bb9e4f94a [2025-03-09 06:39:57,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:39:57,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:39:57,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:57,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:39:57,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:39:57,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70260108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57, skipping insertion in model container [2025-03-09 06:39:57,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:39:57,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:57,533 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:39:57,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:57,567 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:39:57,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57 WrapperNode [2025-03-09 06:39:57,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:57,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:57,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:39:57,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:39:57,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,601 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 121 [2025-03-09 06:39:57,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:57,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:39:57,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:39:57,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:39:57,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,622 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-09 06:39:57,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:39:57,634 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:39:57,634 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:39:57,634 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:39:57,635 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (1/1) ... [2025-03-09 06:39:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:57,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:39:57,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:39:57,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:39:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:39:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:39:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:39:57,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:39:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:39:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:39:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:39:57,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:39:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:39:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:39:57,691 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:39:57,783 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:39:57,785 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:39:58,057 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:39:58,058 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:39:58,214 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:39:58,217 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:39:58,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:58 BoogieIcfgContainer [2025-03-09 06:39:58,218 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:39:58,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:39:58,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:39:58,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:39:58,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:39:57" (1/3) ... [2025-03-09 06:39:58,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1666f8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:58, skipping insertion in model container [2025-03-09 06:39:58,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:57" (2/3) ... [2025-03-09 06:39:58,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1666f8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:58, skipping insertion in model container [2025-03-09 06:39:58,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:58" (3/3) ... [2025-03-09 06:39:58,228 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2025-03-09 06:39:58,240 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:39:58,242 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-min-max-1.wvr.c that has 4 procedures, 61 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-09 06:39:58,243 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:39:58,311 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-09 06:39:58,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 65 transitions, 151 flow [2025-03-09 06:39:58,365 INFO L124 PetriNetUnfolderBase]: 5/62 cut-off events. [2025-03-09 06:39:58,367 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:39:58,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 62 events. 5/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 106 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2025-03-09 06:39:58,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 65 transitions, 151 flow [2025-03-09 06:39:58,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 59 transitions, 130 flow [2025-03-09 06:39:58,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:39:58,388 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;@5dcc3a80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:39:58,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-09 06:39:58,394 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:39:58,394 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2025-03-09 06:39:58,394 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:39:58,394 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:58,395 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:58,395 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:39:58,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:58,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1504611625, now seen corresponding path program 1 times [2025-03-09 06:39:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:58,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373661863] [2025-03-09 06:39:58,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:58,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:58,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:39:58,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:39:58,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:58,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:58,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:58,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373661863] [2025-03-09 06:39:58,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373661863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:58,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:58,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:58,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054448316] [2025-03-09 06:39:58,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:58,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:58,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:58,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:58,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:58,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 65 [2025-03-09 06:39:58,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:58,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:58,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 65 [2025-03-09 06:39:58,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:59,108 INFO L124 PetriNetUnfolderBase]: 1696/2949 cut-off events. [2025-03-09 06:39:59,109 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2025-03-09 06:39:59,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5542 conditions, 2949 events. 1696/2949 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 17510 event pairs, 1262 based on Foata normal form. 1/2362 useless extension candidates. Maximal degree in co-relation 5306. Up to 2392 conditions per place. [2025-03-09 06:39:59,131 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 44 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2025-03-09 06:39:59,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 62 transitions, 232 flow [2025-03-09 06:39:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2025-03-09 06:39:59,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45384615384615384 [2025-03-09 06:39:59,141 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 130 flow. Second operand 4 states and 118 transitions. [2025-03-09 06:39:59,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 62 transitions, 232 flow [2025-03-09 06:39:59,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 226 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:59,149 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 153 flow [2025-03-09 06:39:59,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=153, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2025-03-09 06:39:59,154 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 1 predicate places. [2025-03-09 06:39:59,155 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 153 flow [2025-03-09 06:39:59,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:59,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:59,155 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:59,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:39:59,156 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:39:59,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:59,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1606580344, now seen corresponding path program 1 times [2025-03-09 06:39:59,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:59,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728828268] [2025-03-09 06:39:59,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:59,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:59,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:39:59,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:39:59,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:59,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:59,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:59,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728828268] [2025-03-09 06:39:59,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728828268] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:39:59,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405973091] [2025-03-09 06:39:59,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:59,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:39:59,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:39:59,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:39:59,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:39:59,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:39:59,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:39:59,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:59,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:59,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:39:59,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:39:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:59,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:39:59,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405973091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:59,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:39:59,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 06:39:59,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860481149] [2025-03-09 06:39:59,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:59,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:59,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:59,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:59,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:39:59,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 65 [2025-03-09 06:39:59,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:59,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:59,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 65 [2025-03-09 06:39:59,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:59,714 INFO L124 PetriNetUnfolderBase]: 1696/2948 cut-off events. [2025-03-09 06:39:59,714 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-09 06:39:59,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 2948 events. 1696/2948 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 17548 event pairs, 1262 based on Foata normal form. 1/2362 useless extension candidates. Maximal degree in co-relation 5496. Up to 2387 conditions per place. [2025-03-09 06:39:59,727 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 40 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2025-03-09 06:39:59,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 243 flow [2025-03-09 06:39:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:59,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:59,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 150 transitions. [2025-03-09 06:39:59,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2025-03-09 06:39:59,729 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 153 flow. Second operand 6 states and 150 transitions. [2025-03-09 06:39:59,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 243 flow [2025-03-09 06:39:59,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:59,730 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 160 flow [2025-03-09 06:39:59,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2025-03-09 06:39:59,731 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 4 predicate places. [2025-03-09 06:39:59,731 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 160 flow [2025-03-09 06:39:59,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:59,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:59,731 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:59,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:39:59,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:39:59,932 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:39:59,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1735616526, now seen corresponding path program 1 times [2025-03-09 06:39:59,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:59,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332511165] [2025-03-09 06:39:59,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:59,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:59,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:39:59,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:39:59,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:59,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:00,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:00,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332511165] [2025-03-09 06:40:00,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332511165] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:00,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162665499] [2025-03-09 06:40:00,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:00,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:00,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:00,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:00,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:40:00,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:40:00,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:40:00,094 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:00,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:00,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:00,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:00,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:00,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:00,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162665499] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:00,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:00,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:40:00,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948949782] [2025-03-09 06:40:00,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:00,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:40:00,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:00,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:40:00,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:40:00,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 65 [2025-03-09 06:40:00,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 160 flow. Second operand has 12 states, 12 states have (on average 19.083333333333332) internal successors, (229), 12 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:00,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:00,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 65 [2025-03-09 06:40:00,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:00,549 INFO L124 PetriNetUnfolderBase]: 1699/2960 cut-off events. [2025-03-09 06:40:00,549 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-03-09 06:40:00,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5567 conditions, 2960 events. 1699/2960 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 17596 event pairs, 1262 based on Foata normal form. 3/2374 useless extension candidates. Maximal degree in co-relation 5497. Up to 2394 conditions per place. [2025-03-09 06:40:00,568 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 43 selfloop transitions, 13 changer transitions 0/70 dead transitions. [2025-03-09 06:40:00,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 326 flow [2025-03-09 06:40:00,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:40:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:40:00,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 229 transitions. [2025-03-09 06:40:00,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3523076923076923 [2025-03-09 06:40:00,570 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 160 flow. Second operand 10 states and 229 transitions. [2025-03-09 06:40:00,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 326 flow [2025-03-09 06:40:00,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 280 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-03-09 06:40:00,572 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 212 flow [2025-03-09 06:40:00,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=212, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2025-03-09 06:40:00,573 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 11 predicate places. [2025-03-09 06:40:00,573 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 212 flow [2025-03-09 06:40:00,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.083333333333332) internal successors, (229), 12 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:00,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:00,575 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] [2025-03-09 06:40:00,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:00,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-09 06:40:00,779 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:00,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:00,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1120825003, now seen corresponding path program 1 times [2025-03-09 06:40:00,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037953007] [2025-03-09 06:40:00,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:00,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:00,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 06:40:00,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 06:40:00,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:00,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:00,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:00,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:00,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037953007] [2025-03-09 06:40:00,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037953007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:00,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:00,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:00,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586403705] [2025-03-09 06:40:00,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:00,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:00,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:00,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:00,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:00,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:00,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:00,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:00,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:00,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:01,264 INFO L124 PetriNetUnfolderBase]: 3162/4851 cut-off events. [2025-03-09 06:40:01,265 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2025-03-09 06:40:01,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9686 conditions, 4851 events. 3162/4851 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 26138 event pairs, 1721 based on Foata normal form. 74/4068 useless extension candidates. Maximal degree in co-relation 9652. Up to 3166 conditions per place. [2025-03-09 06:40:01,287 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 94 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2025-03-09 06:40:01,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 109 transitions, 494 flow [2025-03-09 06:40:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2025-03-09 06:40:01,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5692307692307692 [2025-03-09 06:40:01,289 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 212 flow. Second operand 4 states and 148 transitions. [2025-03-09 06:40:01,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 109 transitions, 494 flow [2025-03-09 06:40:01,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 109 transitions, 483 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:01,292 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 230 flow [2025-03-09 06:40:01,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2025-03-09 06:40:01,294 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 14 predicate places. [2025-03-09 06:40:01,294 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 230 flow [2025-03-09 06:40:01,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:01,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:01,295 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] [2025-03-09 06:40:01,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:40:01,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:01,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:01,296 INFO L85 PathProgramCache]: Analyzing trace with hash 138767944, now seen corresponding path program 1 times [2025-03-09 06:40:01,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:01,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204443305] [2025-03-09 06:40:01,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:01,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:01,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 06:40:01,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 06:40:01,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:01,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:01,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:01,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204443305] [2025-03-09 06:40:01,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204443305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:01,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:01,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:01,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530340122] [2025-03-09 06:40:01,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:01,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:01,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:01,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:01,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:01,372 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:01,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:01,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:01,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:01,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:01,773 INFO L124 PetriNetUnfolderBase]: 4294/6570 cut-off events. [2025-03-09 06:40:01,773 INFO L125 PetriNetUnfolderBase]: For 615/892 co-relation queries the response was YES. [2025-03-09 06:40:01,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14146 conditions, 6570 events. 4294/6570 cut-off events. For 615/892 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 35970 event pairs, 2336 based on Foata normal form. 296/6050 useless extension candidates. Maximal degree in co-relation 14110. Up to 4266 conditions per place. [2025-03-09 06:40:01,800 INFO L140 encePairwiseOnDemand]: 59/65 looper letters, 98 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2025-03-09 06:40:01,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 114 transitions, 542 flow [2025-03-09 06:40:01,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:01,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:01,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2025-03-09 06:40:01,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5615384615384615 [2025-03-09 06:40:01,802 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 230 flow. Second operand 4 states and 146 transitions. [2025-03-09 06:40:01,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 114 transitions, 542 flow [2025-03-09 06:40:01,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 114 transitions, 535 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:40:01,809 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 256 flow [2025-03-09 06:40:01,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2025-03-09 06:40:01,810 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 18 predicate places. [2025-03-09 06:40:01,811 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 256 flow [2025-03-09 06:40:01,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:01,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:01,812 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:01,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:40:01,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:01,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:01,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1329866273, now seen corresponding path program 2 times [2025-03-09 06:40:01,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:01,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984470733] [2025-03-09 06:40:01,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:01,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:01,821 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 2 equivalence classes. [2025-03-09 06:40:01,828 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 28 statements. [2025-03-09 06:40:01,830 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:40:01,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:01,895 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:40:01,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:01,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984470733] [2025-03-09 06:40:01,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984470733] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:01,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207686726] [2025-03-09 06:40:01,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:01,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:01,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:01,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:01,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:40:01,940 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 2 equivalence classes. [2025-03-09 06:40:01,948 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 28 statements. [2025-03-09 06:40:01,949 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:40:01,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:01,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 06:40:01,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:01,986 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:40:01,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:02,035 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:40:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207686726] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:02,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:02,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-03-09 06:40:02,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849468764] [2025-03-09 06:40:02,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:02,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:02,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:02,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:40:02,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 65 [2025-03-09 06:40:02,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:02,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:02,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 65 [2025-03-09 06:40:02,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:02,417 INFO L124 PetriNetUnfolderBase]: 3129/5311 cut-off events. [2025-03-09 06:40:02,418 INFO L125 PetriNetUnfolderBase]: For 827/1097 co-relation queries the response was YES. [2025-03-09 06:40:02,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11755 conditions, 5311 events. 3129/5311 cut-off events. For 827/1097 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32446 event pairs, 2336 based on Foata normal form. 207/5061 useless extension candidates. Maximal degree in co-relation 11722. Up to 4351 conditions per place. [2025-03-09 06:40:02,442 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 40 selfloop transitions, 19 changer transitions 0/75 dead transitions. [2025-03-09 06:40:02,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 364 flow [2025-03-09 06:40:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:02,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 146 transitions. [2025-03-09 06:40:02,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37435897435897436 [2025-03-09 06:40:02,444 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 256 flow. Second operand 6 states and 146 transitions. [2025-03-09 06:40:02,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 364 flow [2025-03-09 06:40:02,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 351 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-09 06:40:02,452 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 271 flow [2025-03-09 06:40:02,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2025-03-09 06:40:02,455 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 17 predicate places. [2025-03-09 06:40:02,455 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 271 flow [2025-03-09 06:40:02,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:02,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:02,455 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:02,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 06:40:02,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:02,659 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:02,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:02,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1044292820, now seen corresponding path program 1 times [2025-03-09 06:40:02,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:02,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568349518] [2025-03-09 06:40:02,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:02,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:02,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 06:40:02,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 06:40:02,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:02,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 06:40:02,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:02,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568349518] [2025-03-09 06:40:02,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568349518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:02,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:02,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:40:02,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807838655] [2025-03-09 06:40:02,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:02,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:02,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:02,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:02,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:02,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 65 [2025-03-09 06:40:02,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 75 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:02,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:02,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 65 [2025-03-09 06:40:02,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:03,007 INFO L124 PetriNetUnfolderBase]: 3128/5310 cut-off events. [2025-03-09 06:40:03,007 INFO L125 PetriNetUnfolderBase]: For 817/1087 co-relation queries the response was YES. [2025-03-09 06:40:03,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11563 conditions, 5310 events. 3128/5310 cut-off events. For 817/1087 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32371 event pairs, 2336 based on Foata normal form. 206/5056 useless extension candidates. Maximal degree in co-relation 11460. Up to 4355 conditions per place. [2025-03-09 06:40:03,029 INFO L140 encePairwiseOnDemand]: 61/65 looper letters, 55 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2025-03-09 06:40:03,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 74 transitions, 382 flow [2025-03-09 06:40:03,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:03,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-03-09 06:40:03,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46923076923076923 [2025-03-09 06:40:03,060 INFO L175 Difference]: Start difference. First operand has 81 places, 75 transitions, 271 flow. Second operand 4 states and 122 transitions. [2025-03-09 06:40:03,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 74 transitions, 382 flow [2025-03-09 06:40:03,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 74 transitions, 346 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:40:03,065 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 236 flow [2025-03-09 06:40:03,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2025-03-09 06:40:03,067 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 15 predicate places. [2025-03-09 06:40:03,067 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 236 flow [2025-03-09 06:40:03,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:03,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:03,068 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2025-03-09 06:40:03,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:40:03,068 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:03,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:03,069 INFO L85 PathProgramCache]: Analyzing trace with hash -867100189, now seen corresponding path program 1 times [2025-03-09 06:40:03,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:03,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911062145] [2025-03-09 06:40:03,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:03,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:40:03,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:40:03,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:03,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:40:03,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:03,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911062145] [2025-03-09 06:40:03,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911062145] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:03,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903536336] [2025-03-09 06:40:03,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:03,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:03,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:03,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:40:03,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:40:03,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:40:03,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:03,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:03,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 06:40:03,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:03,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:03,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903536336] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:03,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:03,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-03-09 06:40:03,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923440684] [2025-03-09 06:40:03,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:03,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:40:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:03,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:40:03,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:40:03,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 65 [2025-03-09 06:40:03,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 236 flow. Second operand has 19 states, 19 states have (on average 15.947368421052632) internal successors, (303), 19 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:03,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:03,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 65 [2025-03-09 06:40:03,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:04,701 INFO L124 PetriNetUnfolderBase]: 6745/10352 cut-off events. [2025-03-09 06:40:04,701 INFO L125 PetriNetUnfolderBase]: For 1606/2082 co-relation queries the response was YES. [2025-03-09 06:40:04,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23346 conditions, 10352 events. 6745/10352 cut-off events. For 1606/2082 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 61760 event pairs, 1900 based on Foata normal form. 496/9942 useless extension candidates. Maximal degree in co-relation 23302. Up to 1850 conditions per place. [2025-03-09 06:40:04,739 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 191 selfloop transitions, 25 changer transitions 8/235 dead transitions. [2025-03-09 06:40:04,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 235 transitions, 1114 flow [2025-03-09 06:40:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 06:40:04,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-09 06:40:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 384 transitions. [2025-03-09 06:40:04,741 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.421978021978022 [2025-03-09 06:40:04,741 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 236 flow. Second operand 14 states and 384 transitions. [2025-03-09 06:40:04,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 235 transitions, 1114 flow [2025-03-09 06:40:04,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 235 transitions, 1108 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:40:04,750 INFO L231 Difference]: Finished difference. Result has 89 places, 78 transitions, 302 flow [2025-03-09 06:40:04,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=302, PETRI_PLACES=89, PETRI_TRANSITIONS=78} [2025-03-09 06:40:04,751 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 25 predicate places. [2025-03-09 06:40:04,751 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 78 transitions, 302 flow [2025-03-09 06:40:04,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.947368421052632) internal successors, (303), 19 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:04,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:04,752 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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] [2025-03-09 06:40:04,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:04,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:04,956 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:04,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -161791818, now seen corresponding path program 1 times [2025-03-09 06:40:04,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:04,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564336615] [2025-03-09 06:40:04,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:04,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:40:04,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:40:04,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:04,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-09 06:40:05,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:05,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564336615] [2025-03-09 06:40:05,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564336615] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:05,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397572251] [2025-03-09 06:40:05,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:05,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:05,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:05,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:05,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:40:05,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:40:05,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:40:05,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:05,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:05,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 06:40:05,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:05,190 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:05,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:05,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397572251] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:05,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:05,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-03-09 06:40:05,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634049886] [2025-03-09 06:40:05,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:05,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:40:05,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:05,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:40:05,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:40:05,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 65 [2025-03-09 06:40:05,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 78 transitions, 302 flow. Second operand has 19 states, 19 states have (on average 16.157894736842106) internal successors, (307), 19 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:05,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:05,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 65 [2025-03-09 06:40:05,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:06,421 INFO L124 PetriNetUnfolderBase]: 6372/9769 cut-off events. [2025-03-09 06:40:06,421 INFO L125 PetriNetUnfolderBase]: For 3840/3922 co-relation queries the response was YES. [2025-03-09 06:40:06,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23501 conditions, 9769 events. 6372/9769 cut-off events. For 3840/3922 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 57155 event pairs, 1825 based on Foata normal form. 185/9140 useless extension candidates. Maximal degree in co-relation 16152. Up to 1747 conditions per place. [2025-03-09 06:40:06,454 INFO L140 encePairwiseOnDemand]: 53/65 looper letters, 128 selfloop transitions, 19 changer transitions 72/229 dead transitions. [2025-03-09 06:40:06,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 229 transitions, 1213 flow [2025-03-09 06:40:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 06:40:06,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-09 06:40:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 377 transitions. [2025-03-09 06:40:06,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4142857142857143 [2025-03-09 06:40:06,459 INFO L175 Difference]: Start difference. First operand has 89 places, 78 transitions, 302 flow. Second operand 14 states and 377 transitions. [2025-03-09 06:40:06,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 229 transitions, 1213 flow [2025-03-09 06:40:06,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 229 transitions, 1136 flow, removed 11 selfloop flow, removed 7 redundant places. [2025-03-09 06:40:06,470 INFO L231 Difference]: Finished difference. Result has 95 places, 71 transitions, 272 flow [2025-03-09 06:40:06,470 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=272, PETRI_PLACES=95, PETRI_TRANSITIONS=71} [2025-03-09 06:40:06,471 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 31 predicate places. [2025-03-09 06:40:06,471 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 71 transitions, 272 flow [2025-03-09 06:40:06,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 16.157894736842106) internal successors, (307), 19 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:06,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:06,471 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:06,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:06,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:06,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:06,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:06,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1685420454, now seen corresponding path program 1 times [2025-03-09 06:40:06,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:06,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189049036] [2025-03-09 06:40:06,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:06,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-09 06:40:06,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-09 06:40:06,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:06,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:06,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:06,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189049036] [2025-03-09 06:40:06,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189049036] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:06,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982421067] [2025-03-09 06:40:06,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:06,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:06,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:06,762 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:06,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:40:06,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-09 06:40:06,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-09 06:40:06,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:06,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:06,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:06,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:06,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:06,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982421067] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:06,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:06,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:40:06,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495466019] [2025-03-09 06:40:06,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:06,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:40:06,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:06,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:40:06,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:40:06,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:06,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 71 transitions, 272 flow. Second operand has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:06,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:06,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:06,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:07,866 INFO L124 PetriNetUnfolderBase]: 8642/12993 cut-off events. [2025-03-09 06:40:07,866 INFO L125 PetriNetUnfolderBase]: For 5863/6007 co-relation queries the response was YES. [2025-03-09 06:40:07,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31903 conditions, 12993 events. 8642/12993 cut-off events. For 5863/6007 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 72313 event pairs, 2599 based on Foata normal form. 318/12199 useless extension candidates. Maximal degree in co-relation 31802. Up to 4812 conditions per place. [2025-03-09 06:40:07,922 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 217 selfloop transitions, 13 changer transitions 0/240 dead transitions. [2025-03-09 06:40:07,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 240 transitions, 1278 flow [2025-03-09 06:40:07,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:40:07,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:40:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 355 transitions. [2025-03-09 06:40:07,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5461538461538461 [2025-03-09 06:40:07,923 INFO L175 Difference]: Start difference. First operand has 95 places, 71 transitions, 272 flow. Second operand 10 states and 355 transitions. [2025-03-09 06:40:07,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 240 transitions, 1278 flow [2025-03-09 06:40:07,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 240 transitions, 1172 flow, removed 24 selfloop flow, removed 11 redundant places. [2025-03-09 06:40:07,937 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 324 flow [2025-03-09 06:40:07,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2025-03-09 06:40:07,938 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 26 predicate places. [2025-03-09 06:40:07,938 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 324 flow [2025-03-09 06:40:07,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:07,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:07,939 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:07,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:08,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:08,142 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:08,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:08,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1613825410, now seen corresponding path program 1 times [2025-03-09 06:40:08,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:08,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261749671] [2025-03-09 06:40:08,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:08,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:08,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 06:40:08,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 06:40:08,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:08,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:08,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261749671] [2025-03-09 06:40:08,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261749671] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:08,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119064038] [2025-03-09 06:40:08,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:08,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:08,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:08,256 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:08,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:40:08,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 06:40:08,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 06:40:08,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:08,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:08,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:08,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:08,343 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 06:40:08,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119064038] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:08,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:08,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:40:08,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098414653] [2025-03-09 06:40:08,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:08,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:40:08,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:08,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:40:08,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:40:08,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:08,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 324 flow. Second operand has 12 states, 12 states have (on average 18.75) internal successors, (225), 12 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:08,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:08,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:08,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:09,842 INFO L124 PetriNetUnfolderBase]: 17686/26066 cut-off events. [2025-03-09 06:40:09,842 INFO L125 PetriNetUnfolderBase]: For 15479/15799 co-relation queries the response was YES. [2025-03-09 06:40:09,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64215 conditions, 26066 events. 17686/26066 cut-off events. For 15479/15799 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 150382 event pairs, 4967 based on Foata normal form. 618/24272 useless extension candidates. Maximal degree in co-relation 64121. Up to 9428 conditions per place. [2025-03-09 06:40:09,935 INFO L140 encePairwiseOnDemand]: 60/65 looper letters, 263 selfloop transitions, 13 changer transitions 0/289 dead transitions. [2025-03-09 06:40:09,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 289 transitions, 1750 flow [2025-03-09 06:40:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:40:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:40:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 347 transitions. [2025-03-09 06:40:09,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5338461538461539 [2025-03-09 06:40:09,936 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 324 flow. Second operand 10 states and 347 transitions. [2025-03-09 06:40:09,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 289 transitions, 1750 flow [2025-03-09 06:40:09,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 289 transitions, 1675 flow, removed 27 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:09,958 INFO L231 Difference]: Finished difference. Result has 100 places, 89 transitions, 399 flow [2025-03-09 06:40:09,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=399, PETRI_PLACES=100, PETRI_TRANSITIONS=89} [2025-03-09 06:40:09,958 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 36 predicate places. [2025-03-09 06:40:09,958 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 89 transitions, 399 flow [2025-03-09 06:40:09,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.75) internal successors, (225), 12 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:09,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:09,959 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:09,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:10,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:10,163 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:10,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:10,163 INFO L85 PathProgramCache]: Analyzing trace with hash 493020847, now seen corresponding path program 2 times [2025-03-09 06:40:10,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:10,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910957191] [2025-03-09 06:40:10,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:10,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:10,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-03-09 06:40:10,176 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 06:40:10,177 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:40:10,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910957191] [2025-03-09 06:40:10,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910957191] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:10,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782226344] [2025-03-09 06:40:10,242 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:10,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:10,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:10,244 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:10,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 06:40:10,293 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-03-09 06:40:10,315 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 06:40:10,315 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:40:10,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:10,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:10,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:10,364 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:10,419 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:10,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782226344] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:10,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:10,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-03-09 06:40:10,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828591664] [2025-03-09 06:40:10,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:10,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:10,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:10,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:10,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:40:10,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:10,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 89 transitions, 399 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:10,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:10,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:10,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:12,080 INFO L124 PetriNetUnfolderBase]: 17139/25160 cut-off events. [2025-03-09 06:40:12,081 INFO L125 PetriNetUnfolderBase]: For 19816/20099 co-relation queries the response was YES. [2025-03-09 06:40:12,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64802 conditions, 25160 events. 17139/25160 cut-off events. For 19816/20099 co-relation queries the response was YES. Maximal size of possible extension queue 404. Compared 146786 event pairs, 4233 based on Foata normal form. 202/22893 useless extension candidates. Maximal degree in co-relation 64704. Up to 12098 conditions per place. [2025-03-09 06:40:12,184 INFO L140 encePairwiseOnDemand]: 56/65 looper letters, 93 selfloop transitions, 16 changer transitions 15/137 dead transitions. [2025-03-09 06:40:12,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 137 transitions, 845 flow [2025-03-09 06:40:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:12,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2025-03-09 06:40:12,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4358974358974359 [2025-03-09 06:40:12,185 INFO L175 Difference]: Start difference. First operand has 100 places, 89 transitions, 399 flow. Second operand 6 states and 170 transitions. [2025-03-09 06:40:12,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 137 transitions, 845 flow [2025-03-09 06:40:12,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 137 transitions, 808 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-09 06:40:12,269 INFO L231 Difference]: Finished difference. Result has 99 places, 84 transitions, 387 flow [2025-03-09 06:40:12,269 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=99, PETRI_TRANSITIONS=84} [2025-03-09 06:40:12,270 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 35 predicate places. [2025-03-09 06:40:12,270 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 84 transitions, 387 flow [2025-03-09 06:40:12,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:12,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:12,270 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:12,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:40:12,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-09 06:40:12,471 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:40:12,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:12,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1222000831, now seen corresponding path program 2 times [2025-03-09 06:40:12,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:12,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815740592] [2025-03-09 06:40:12,471 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:12,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:12,478 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-09 06:40:12,483 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 06:40:12,483 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:40:12,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:12,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815740592] [2025-03-09 06:40:12,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815740592] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:12,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677280002] [2025-03-09 06:40:12,543 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:40:12,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:12,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:12,546 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:40:12,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 06:40:12,591 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-09 06:40:12,608 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 06:40:12,608 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:40:12,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:12,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:12,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:12,665 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:12,666 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:40:12,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677280002] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:12,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:12,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2025-03-09 06:40:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009733525] [2025-03-09 06:40:12,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:12,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:12,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:12,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:40:12,734 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2025-03-09 06:40:12,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 84 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:12,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:12,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2025-03-09 06:40:12,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:13,992 INFO L124 PetriNetUnfolderBase]: 15571/23115 cut-off events. [2025-03-09 06:40:13,993 INFO L125 PetriNetUnfolderBase]: For 24376/24757 co-relation queries the response was YES. [2025-03-09 06:40:14,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59980 conditions, 23115 events. 15571/23115 cut-off events. For 24376/24757 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 133874 event pairs, 3259 based on Foata normal form. 435/21234 useless extension candidates. Maximal degree in co-relation 59880. Up to 12310 conditions per place. [2025-03-09 06:40:14,039 INFO L140 encePairwiseOnDemand]: 57/65 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2025-03-09 06:40:14,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 132 transitions, 841 flow [2025-03-09 06:40:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2025-03-09 06:40:14,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4256410256410256 [2025-03-09 06:40:14,040 INFO L175 Difference]: Start difference. First operand has 99 places, 84 transitions, 387 flow. Second operand 6 states and 166 transitions. [2025-03-09 06:40:14,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 132 transitions, 841 flow [2025-03-09 06:40:14,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 132 transitions, 796 flow, removed 1 selfloop flow, removed 8 redundant places. [2025-03-09 06:40:14,088 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2025-03-09 06:40:14,088 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=89, 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=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2025-03-09 06:40:14,089 INFO L279 CegarLoopForPetriNet]: 64 programPoint places, 30 predicate places. [2025-03-09 06:40:14,089 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2025-03-09 06:40:14,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:14,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2025-03-09 06:40:14,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-09 06:40:14,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-09 06:40:14,092 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-09 06:40:14,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 06:40:14,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 06:40:14,293 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:14,296 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:40:14,296 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:40:14,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:40:14 BasicIcfg [2025-03-09 06:40:14,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:40:14,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:40:14,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:40:14,300 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:40:14,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:58" (3/4) ... [2025-03-09 06:40:14,302 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:40:14,303 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:40:14,303 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:40:14,303 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-09 06:40:14,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-09 06:40:14,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-09 06:40:14,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-09 06:40:14,308 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:40:14,363 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:40:14,364 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:40:14,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:40:14,365 INFO L158 Benchmark]: Toolchain (without parser) took 16993.17ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 105.1MB in the beginning and 566.8MB in the end (delta: -461.7MB). Peak memory consumption was 566.1MB. Max. memory is 16.1GB. [2025-03-09 06:40:14,365 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:40:14,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.23ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 92.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:40:14,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.25ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:40:14,366 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:40:14,366 INFO L158 Benchmark]: IcfgBuilder took 583.83ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 52.6MB in the end (delta: 36.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:40:14,367 INFO L158 Benchmark]: TraceAbstraction took 16079.87ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 51.7MB in the beginning and 569.4MB in the end (delta: -517.7MB). Peak memory consumption was 935.2MB. Max. memory is 16.1GB. [2025-03-09 06:40:14,367 INFO L158 Benchmark]: Witness Printer took 63.77ms. Allocated memory is still 1.2GB. Free memory was 569.4MB in the beginning and 566.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:40:14,368 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 127.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.23ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 92.7MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.25ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 89.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 583.83ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 52.6MB in the end (delta: 36.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16079.87ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 51.7MB in the beginning and 569.4MB in the end (delta: -517.7MB). Peak memory consumption was 935.2MB. Max. memory is 16.1GB. * Witness Printer took 63.77ms. Allocated memory is still 1.2GB. Free memory was 569.4MB in the beginning and 566.8MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 111]: 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 7 procedures, 96 locations, 104 edges, 13 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: 16.0s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1374 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1324 mSDsluCounter, 620 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 580 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6028 IncrementalHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 40 mSDtfsCounter, 6028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 678 GetRequests, 540 SyntacticMatches, 11 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=399occurred in iteration=11, InterpolantAutomatonStates: 98, 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, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 712 NumberOfCodeBlocks, 688 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 973 ConstructedInterpolants, 0 QuantifiedInterpolants, 2205 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1311 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 396/569 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:40:14,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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