./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i --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/goblint-regression/28-race_reach_70-funloop_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:35:56,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:35:56,164 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:35:56,167 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:35:56,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:35:56,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:35:56,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:35:56,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:35:56,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:35:56,189 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:35:56,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:35:56,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:35:56,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:35:56,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:35:56,190 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:35:56,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:35:56,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:35:56,191 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:35:56,192 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:35:56,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:35:56,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:35:56,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:35:56,193 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 -> 2a10f98c1a89e2ac521234c9e4f0eca565cc5bc1484e9c7d67d861e216c6f9ba [2025-03-09 06:35:56,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:35:56,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:35:56,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:35:56,418 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:35:56,418 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:35:56,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2025-03-09 06:35:57,570 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db12332b1/deed6f2ed0264ee195c5283f80369748/FLAG4c14e7775 [2025-03-09 06:35:57,892 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:35:57,894 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_70-funloop_racefree.i [2025-03-09 06:35:57,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db12332b1/deed6f2ed0264ee195c5283f80369748/FLAG4c14e7775 [2025-03-09 06:35:58,161 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db12332b1/deed6f2ed0264ee195c5283f80369748 [2025-03-09 06:35:58,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:35:58,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:35:58,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:35:58,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:35:58,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:35:58,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5deddda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58, skipping insertion in model container [2025-03-09 06:35:58,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:35:58,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:35:58,509 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:35:58,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:35:58,600 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:35:58,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58 WrapperNode [2025-03-09 06:35:58,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:35:58,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:35:58,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:35:58,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:35:58,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,636 INFO L138 Inliner]: procedures = 272, calls = 96, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 274 [2025-03-09 06:35:58,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:35:58,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:35:58,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:35:58,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:35:58,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,666 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 70, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2025-03-09 06:35:58,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,675 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:35:58,680 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:35:58,680 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:35:58,680 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:35:58,680 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (1/1) ... [2025-03-09 06:35:58,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:35:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:35:58,707 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 06:35:58,710 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 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:35:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:35:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:35:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:35:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:35:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:35:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:35:58,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:35:58,730 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 06:35:58,838 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:35:58,840 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:35:59,090 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-09 06:35:59,090 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-09 06:35:59,159 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:35:59,159 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:35:59,472 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:35:59,473 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:35:59,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:35:59 BoogieIcfgContainer [2025-03-09 06:35:59,473 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:35:59,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:35:59,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:35:59,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:35:59,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:35:58" (1/3) ... [2025-03-09 06:35:59,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d87e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:35:59, skipping insertion in model container [2025-03-09 06:35:59,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:35:58" (2/3) ... [2025-03-09 06:35:59,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13d87e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:35:59, skipping insertion in model container [2025-03-09 06:35:59,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:35:59" (3/3) ... [2025-03-09 06:35:59,481 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_70-funloop_racefree.i [2025-03-09 06:35:59,492 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:35:59,494 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_70-funloop_racefree.i that has 2 procedures, 95 locations, 1 initial locations, 13 loop locations, and 18 error locations. [2025-03-09 06:35:59,494 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:35:59,539 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-09 06:35:59,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 121 transitions, 249 flow [2025-03-09 06:35:59,618 INFO L124 PetriNetUnfolderBase]: 38/173 cut-off events. [2025-03-09 06:35:59,621 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:35:59,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 173 events. 38/173 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 746 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 106. Up to 8 conditions per place. [2025-03-09 06:35:59,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 121 transitions, 249 flow [2025-03-09 06:35:59,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 120 transitions, 247 flow [2025-03-09 06:35:59,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:35:59,651 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;@3a15e5a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:35:59,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-03-09 06:35:59,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:35:59,657 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-09 06:35:59,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:35:59,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:35:59,658 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 06:35:59,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:35:59,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:35:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash 665900, now seen corresponding path program 1 times [2025-03-09 06:35:59,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:35:59,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086606513] [2025-03-09 06:35:59,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:35:59,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:35:59,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:35:59,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:35:59,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:35:59,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:35:59,961 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 06:35:59,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:35:59,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086606513] [2025-03-09 06:35:59,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086606513] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:35:59,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:35:59,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:35:59,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942988291] [2025-03-09 06:35:59,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:35:59,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:35:59,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:35:59,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:35:59,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:00,001 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:00,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 120 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 06:36:00,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:00,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:00,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:00,283 INFO L124 PetriNetUnfolderBase]: 575/1779 cut-off events. [2025-03-09 06:36:00,283 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:36:00,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2886 conditions, 1779 events. 575/1779 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12529 event pairs, 480 based on Foata normal form. 243/1749 useless extension candidates. Maximal degree in co-relation 2787. Up to 1100 conditions per place. [2025-03-09 06:36:00,297 INFO L140 encePairwiseOnDemand]: 95/121 looper letters, 53 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2025-03-09 06:36:00,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 323 flow [2025-03-09 06:36:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2025-03-09 06:36:00,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433884297520661 [2025-03-09 06:36:00,312 INFO L175 Difference]: Start difference. First operand has 98 places, 120 transitions, 247 flow. Second operand 4 states and 263 transitions. [2025-03-09 06:36:00,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 323 flow [2025-03-09 06:36:00,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:36:00,319 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 231 flow [2025-03-09 06:36:00,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2025-03-09 06:36:00,325 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 5 predicate places. [2025-03-09 06:36:00,325 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 231 flow [2025-03-09 06:36:00,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 06:36:00,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:00,325 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-09 06:36:00,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:36:00,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:00,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:00,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1636433053, now seen corresponding path program 1 times [2025-03-09 06:36:00,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:00,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-03-09 06:36:00,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:00,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:00,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:36:00,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:36:00,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:00,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:00,459 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 06:36:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-03-09 06:36:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153022123] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257196656] [2025-03-09 06:36:00,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:00,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:00,463 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 06:36:00,464 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 06:36:00,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:36:00,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:36:00,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:00,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:00,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:36:00,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:00,586 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 06:36:00,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:36:00,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257196656] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:00,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:36:00,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-09 06:36:00,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390942832] [2025-03-09 06:36:00,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:00,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:36:00,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:00,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:36:00,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:36:00,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:00,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 46.833333333333336) internal successors, (281), 6 states have internal predecessors, (281), 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 06:36:00,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:00,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:00,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:00,914 INFO L124 PetriNetUnfolderBase]: 575/1778 cut-off events. [2025-03-09 06:36:00,914 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:36:00,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2896 conditions, 1778 events. 575/1778 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12498 event pairs, 480 based on Foata normal form. 1/1506 useless extension candidates. Maximal degree in co-relation 2878. Up to 1095 conditions per place. [2025-03-09 06:36:00,921 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 49 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2025-03-09 06:36:00,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 337 flow [2025-03-09 06:36:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:36:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:36:00,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2025-03-09 06:36:00,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573002754820937 [2025-03-09 06:36:00,923 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 231 flow. Second operand 6 states and 332 transitions. [2025-03-09 06:36:00,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 101 transitions, 337 flow [2025-03-09 06:36:00,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:36:00,925 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 237 flow [2025-03-09 06:36:00,925 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2025-03-09 06:36:00,925 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 8 predicate places. [2025-03-09 06:36:00,925 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 237 flow [2025-03-09 06:36:00,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.833333333333336) internal successors, (281), 6 states have internal predecessors, (281), 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 06:36:00,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:00,926 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-09 06:36:00,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:36:01,126 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 06:36:01,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:01,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:01,127 INFO L85 PathProgramCache]: Analyzing trace with hash 810183488, now seen corresponding path program 1 times [2025-03-09 06:36:01,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:01,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135383604] [2025-03-09 06:36:01,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:01,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:01,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:36:01,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:36:01,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:01,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:36:01,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:01,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135383604] [2025-03-09 06:36:01,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135383604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:01,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:01,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:36:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9021838] [2025-03-09 06:36:01,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:01,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:36:01,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:01,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:36:01,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:36:01,185 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:01,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 06:36:01,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:01,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:01,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:01,370 INFO L124 PetriNetUnfolderBase]: 575/1777 cut-off events. [2025-03-09 06:36:01,370 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-09 06:36:01,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2898 conditions, 1777 events. 575/1777 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12525 event pairs, 480 based on Foata normal form. 1/1506 useless extension candidates. Maximal degree in co-relation 2874. Up to 1098 conditions per place. [2025-03-09 06:36:01,379 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 50 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2025-03-09 06:36:01,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 341 flow [2025-03-09 06:36:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:36:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:36:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2025-03-09 06:36:01,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5261707988980716 [2025-03-09 06:36:01,381 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 237 flow. Second operand 3 states and 191 transitions. [2025-03-09 06:36:01,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 341 flow [2025-03-09 06:36:01,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 100 transitions, 319 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-09 06:36:01,386 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 219 flow [2025-03-09 06:36:01,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2025-03-09 06:36:01,387 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 3 predicate places. [2025-03-09 06:36:01,387 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 219 flow [2025-03-09 06:36:01,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 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 06:36:01,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:01,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:01,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:36:01,387 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:01,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1197580708, now seen corresponding path program 1 times [2025-03-09 06:36:01,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:01,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537715567] [2025-03-09 06:36:01,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:01,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:01,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:01,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:01,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:01,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:01,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:01,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537715567] [2025-03-09 06:36:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537715567] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3373851] [2025-03-09 06:36:01,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:01,483 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 06:36:01,485 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 06:36:01,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:01,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:01,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:01,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:01,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:36:01,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:01,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:01,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:01,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3373851] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:01,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:01,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 06:36:01,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680595490] [2025-03-09 06:36:01,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:01,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 06:36:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:01,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 06:36:01,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:36:01,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:01,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 219 flow. Second operand has 10 states, 10 states have (on average 47.3) internal successors, (473), 10 states have internal predecessors, (473), 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 06:36:01,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:01,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:01,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:01,859 INFO L124 PetriNetUnfolderBase]: 575/1781 cut-off events. [2025-03-09 06:36:01,860 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-03-09 06:36:01,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2901 conditions, 1781 events. 575/1781 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 12492 event pairs, 480 based on Foata normal form. 2/1512 useless extension candidates. Maximal degree in co-relation 2867. Up to 1096 conditions per place. [2025-03-09 06:36:01,865 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 50 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2025-03-09 06:36:01,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 348 flow [2025-03-09 06:36:01,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:36:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:36:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 381 transitions. [2025-03-09 06:36:01,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4498229043683589 [2025-03-09 06:36:01,869 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 219 flow. Second operand 7 states and 381 transitions. [2025-03-09 06:36:01,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 348 flow [2025-03-09 06:36:01,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 103 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:36:01,871 INFO L231 Difference]: Finished difference. Result has 107 places, 103 transitions, 245 flow [2025-03-09 06:36:01,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=245, PETRI_PLACES=107, PETRI_TRANSITIONS=103} [2025-03-09 06:36:01,871 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 9 predicate places. [2025-03-09 06:36:01,872 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 103 transitions, 245 flow [2025-03-09 06:36:01,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 47.3) internal successors, (473), 10 states have internal predecessors, (473), 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 06:36:01,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:01,872 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:01,879 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 06:36:02,076 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,SelfDestructingSolverStorable3 [2025-03-09 06:36:02,076 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:02,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:02,077 INFO L85 PathProgramCache]: Analyzing trace with hash 92891716, now seen corresponding path program 2 times [2025-03-09 06:36:02,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:02,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115862752] [2025-03-09 06:36:02,077 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:02,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:02,087 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-03-09 06:36:02,092 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-03-09 06:36:02,092 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:36:02,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:02,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:36:02,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:02,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115862752] [2025-03-09 06:36:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115862752] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:02,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:02,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:36:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939496609] [2025-03-09 06:36:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:02,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:02,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:02,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:02,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 121 [2025-03-09 06:36:02,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 06:36:02,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:02,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 121 [2025-03-09 06:36:02,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:02,346 INFO L124 PetriNetUnfolderBase]: 571/1550 cut-off events. [2025-03-09 06:36:02,347 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-09 06:36:02,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1550 events. 571/1550 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10292 event pairs, 0 based on Foata normal form. 21/1363 useless extension candidates. Maximal degree in co-relation 2640. Up to 1039 conditions per place. [2025-03-09 06:36:02,353 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 98 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2025-03-09 06:36:02,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 144 transitions, 529 flow [2025-03-09 06:36:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:02,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2025-03-09 06:36:02,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5764462809917356 [2025-03-09 06:36:02,355 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 245 flow. Second operand 4 states and 279 transitions. [2025-03-09 06:36:02,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 144 transitions, 529 flow [2025-03-09 06:36:02,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 144 transitions, 525 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:36:02,361 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 247 flow [2025-03-09 06:36:02,361 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2025-03-09 06:36:02,362 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 9 predicate places. [2025-03-09 06:36:02,362 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 247 flow [2025-03-09 06:36:02,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 06:36:02,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:02,362 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:02,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:36:02,362 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:02,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:02,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1378739320, now seen corresponding path program 1 times [2025-03-09 06:36:02,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:02,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58266687] [2025-03-09 06:36:02,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:02,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:02,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:36:02,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:36:02,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:02,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:02,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:02,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58266687] [2025-03-09 06:36:02,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58266687] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:02,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693837010] [2025-03-09 06:36:02,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:02,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:02,504 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 06:36:02,506 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 06:36:02,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:36:02,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:36:02,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:02,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:02,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 06:36:02,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:02,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:02,617 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693837010] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:02,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:02,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-09 06:36:02,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942655161] [2025-03-09 06:36:02,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:02,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:36:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:02,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:36:02,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:36:02,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:02,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 101 transitions, 247 flow. Second operand has 18 states, 18 states have (on average 47.22222222222222) internal successors, (850), 18 states have internal predecessors, (850), 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 06:36:02,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:02,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:02,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:03,012 INFO L124 PetriNetUnfolderBase]: 573/1737 cut-off events. [2025-03-09 06:36:03,013 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-03-09 06:36:03,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2910 conditions, 1737 events. 573/1737 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 11955 event pairs, 480 based on Foata normal form. 4/1500 useless extension candidates. Maximal degree in co-relation 2835. Up to 1073 conditions per place. [2025-03-09 06:36:03,020 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 50 selfloop transitions, 15 changer transitions 0/109 dead transitions. [2025-03-09 06:36:03,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 109 transitions, 425 flow [2025-03-09 06:36:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:36:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-09 06:36:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 759 transitions. [2025-03-09 06:36:03,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41818181818181815 [2025-03-09 06:36:03,025 INFO L175 Difference]: Start difference. First operand has 107 places, 101 transitions, 247 flow. Second operand 15 states and 759 transitions. [2025-03-09 06:36:03,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 109 transitions, 425 flow [2025-03-09 06:36:03,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 109 transitions, 419 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:36:03,027 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 338 flow [2025-03-09 06:36:03,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=338, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2025-03-09 06:36:03,027 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 24 predicate places. [2025-03-09 06:36:03,027 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 338 flow [2025-03-09 06:36:03,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 47.22222222222222) internal successors, (850), 18 states have internal predecessors, (850), 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 06:36:03,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:03,028 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:03,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 06:36:03,234 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 06:36:03,234 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:03,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash -576212168, now seen corresponding path program 2 times [2025-03-09 06:36:03,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:03,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911555156] [2025-03-09 06:36:03,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:03,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:03,249 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-03-09 06:36:03,264 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 06:36:03,264 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:36:03,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:03,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911555156] [2025-03-09 06:36:03,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911555156] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:03,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209962229] [2025-03-09 06:36:03,491 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:03,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:03,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:03,493 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 06:36:03,495 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 06:36:03,538 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-03-09 06:36:03,564 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 06:36:03,564 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 06:36:03,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:03,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 06:36:03,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:03,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:03,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209962229] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:03,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:03,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-03-09 06:36:03,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534437312] [2025-03-09 06:36:03,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:03,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 06:36:03,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:03,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 06:36:03,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-09 06:36:03,765 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 121 [2025-03-09 06:36:03,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 109 transitions, 338 flow. Second operand has 23 states, 23 states have (on average 47.21739130434783) internal successors, (1086), 23 states have internal predecessors, (1086), 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 06:36:03,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:03,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 121 [2025-03-09 06:36:03,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:04,104 INFO L124 PetriNetUnfolderBase]: 573/1737 cut-off events. [2025-03-09 06:36:04,105 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-03-09 06:36:04,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1737 events. 573/1737 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11906 event pairs, 480 based on Foata normal form. 3/1497 useless extension candidates. Maximal degree in co-relation 2809. Up to 1075 conditions per place. [2025-03-09 06:36:04,110 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 50 selfloop transitions, 21 changer transitions 0/115 dead transitions. [2025-03-09 06:36:04,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 115 transitions, 534 flow [2025-03-09 06:36:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-09 06:36:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-09 06:36:04,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1040 transitions. [2025-03-09 06:36:04,113 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40928768201495475 [2025-03-09 06:36:04,113 INFO L175 Difference]: Start difference. First operand has 122 places, 109 transitions, 338 flow. Second operand 21 states and 1040 transitions. [2025-03-09 06:36:04,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 115 transitions, 534 flow [2025-03-09 06:36:04,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 115 transitions, 524 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:36:04,116 INFO L231 Difference]: Finished difference. Result has 141 places, 115 transitions, 439 flow [2025-03-09 06:36:04,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=439, PETRI_PLACES=141, PETRI_TRANSITIONS=115} [2025-03-09 06:36:04,117 INFO L279 CegarLoopForPetriNet]: 98 programPoint places, 43 predicate places. [2025-03-09 06:36:04,117 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 115 transitions, 439 flow [2025-03-09 06:36:04,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 47.21739130434783) internal successors, (1086), 23 states have internal predecessors, (1086), 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 06:36:04,117 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:04,117 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:04,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 06:36:04,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:04,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 06:36:04,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash 621549377, now seen corresponding path program 3 times [2025-03-09 06:36:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520708373] [2025-03-09 06:36:04,318 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 06:36:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:04,328 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 11 equivalence classes. [2025-03-09 06:36:04,378 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 06:36:04,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 06:36:04,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:36:04,379 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:36:04,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 06:36:04,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 06:36:04,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:04,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:36:04,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:36:04,413 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 06:36:04,413 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2025-03-09 06:36:04,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2025-03-09 06:36:04,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2025-03-09 06:36:04,415 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2025-03-09 06:36:04,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:36:04,415 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2025-03-09 06:36:04,419 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-09 06:36:04,419 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-09 06:36:04,440 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 06:36:04,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 172 transitions, 360 flow [2025-03-09 06:36:04,460 INFO L124 PetriNetUnfolderBase]: 64/295 cut-off events. [2025-03-09 06:36:04,460 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-09 06:36:04,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 295 events. 64/295 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1476 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 175. Up to 12 conditions per place. [2025-03-09 06:36:04,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 172 transitions, 360 flow [2025-03-09 06:36:04,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 172 transitions, 360 flow [2025-03-09 06:36:04,464 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:36:04,464 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;@3a15e5a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:36:04,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-09 06:36:04,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:36:04,466 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-09 06:36:04,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:36:04,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:04,466 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 06:36:04,466 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:04,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:04,466 INFO L85 PathProgramCache]: Analyzing trace with hash 836696, now seen corresponding path program 1 times [2025-03-09 06:36:04,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:04,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565068597] [2025-03-09 06:36:04,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:04,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:04,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:36:04,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:36:04,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:04,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:04,497 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 06:36:04,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:04,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565068597] [2025-03-09 06:36:04,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565068597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:04,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:04,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:36:04,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230920546] [2025-03-09 06:36:04,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:04,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:04,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:04,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:04,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:04,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:04,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 172 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 06:36:04,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:04,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:04,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:07,306 INFO L124 PetriNetUnfolderBase]: 24270/51838 cut-off events. [2025-03-09 06:36:07,307 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2025-03-09 06:36:07,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87323 conditions, 51838 events. 24270/51838 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 548711 event pairs, 21160 based on Foata normal form. 8148/52474 useless extension candidates. Maximal degree in co-relation 64993. Up to 35371 conditions per place. [2025-03-09 06:36:07,600 INFO L140 encePairwiseOnDemand]: 136/172 looper letters, 77 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2025-03-09 06:36:07,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 144 transitions, 464 flow [2025-03-09 06:36:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-03-09 06:36:07,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5363372093023255 [2025-03-09 06:36:07,602 INFO L175 Difference]: Start difference. First operand has 138 places, 172 transitions, 360 flow. Second operand 4 states and 369 transitions. [2025-03-09 06:36:07,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 144 transitions, 464 flow [2025-03-09 06:36:07,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 144 transitions, 464 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:36:07,604 INFO L231 Difference]: Finished difference. Result has 143 places, 144 transitions, 324 flow [2025-03-09 06:36:07,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=143, PETRI_TRANSITIONS=144} [2025-03-09 06:36:07,605 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2025-03-09 06:36:07,605 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 144 transitions, 324 flow [2025-03-09 06:36:07,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 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 06:36:07,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:07,605 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-09 06:36:07,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:36:07,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:07,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:07,606 INFO L85 PathProgramCache]: Analyzing trace with hash -843045917, now seen corresponding path program 1 times [2025-03-09 06:36:07,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:07,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75205781] [2025-03-09 06:36:07,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:07,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:07,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:36:07,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:36:07,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:07,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:07,656 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 06:36:07,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75205781] [2025-03-09 06:36:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75205781] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093034362] [2025-03-09 06:36:07,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:07,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:07,658 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 06:36:07,660 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 06:36:07,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:36:07,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:36:07,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:07,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:07,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:36:07,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:07,751 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 06:36:07,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:36:07,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093034362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:07,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:36:07,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-09 06:36:07,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129062905] [2025-03-09 06:36:07,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:07,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:36:07,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:07,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:36:07,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:36:07,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:07,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 144 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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 06:36:07,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:07,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:07,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:10,266 INFO L124 PetriNetUnfolderBase]: 24270/51837 cut-off events. [2025-03-09 06:36:10,266 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2025-03-09 06:36:10,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87333 conditions, 51837 events. 24270/51837 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 548821 event pairs, 21160 based on Foata normal form. 1/44326 useless extension candidates. Maximal degree in co-relation 87314. Up to 35366 conditions per place. [2025-03-09 06:36:10,523 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 73 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2025-03-09 06:36:10,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 143 transitions, 478 flow [2025-03-09 06:36:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:36:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:36:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2025-03-09 06:36:10,526 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2025-03-09 06:36:10,526 INFO L175 Difference]: Start difference. First operand has 143 places, 144 transitions, 324 flow. Second operand 6 states and 464 transitions. [2025-03-09 06:36:10,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 143 transitions, 478 flow [2025-03-09 06:36:10,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 143 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:36:10,528 INFO L231 Difference]: Finished difference. Result has 146 places, 143 transitions, 330 flow [2025-03-09 06:36:10,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=146, PETRI_TRANSITIONS=143} [2025-03-09 06:36:10,529 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 8 predicate places. [2025-03-09 06:36:10,529 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 143 transitions, 330 flow [2025-03-09 06:36:10,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 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 06:36:10,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:10,529 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-09 06:36:10,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 06:36:10,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-09 06:36:10,730 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:10,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:10,730 INFO L85 PathProgramCache]: Analyzing trace with hash -364618900, now seen corresponding path program 1 times [2025-03-09 06:36:10,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:10,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289210791] [2025-03-09 06:36:10,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:10,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:10,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:36:10,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:36:10,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:10,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:10,752 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:36:10,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:10,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289210791] [2025-03-09 06:36:10,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289210791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:10,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:10,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:36:10,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249608337] [2025-03-09 06:36:10,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:10,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:36:10,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:10,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:36:10,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:36:10,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:10,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 143 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 06:36:10,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:10,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:10,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:13,735 INFO L124 PetriNetUnfolderBase]: 24270/51836 cut-off events. [2025-03-09 06:36:13,735 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-03-09 06:36:13,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87335 conditions, 51836 events. 24270/51836 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 548743 event pairs, 21160 based on Foata normal form. 1/44326 useless extension candidates. Maximal degree in co-relation 87310. Up to 35369 conditions per place. [2025-03-09 06:36:13,979 INFO L140 encePairwiseOnDemand]: 169/172 looper letters, 74 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2025-03-09 06:36:13,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 142 transitions, 482 flow [2025-03-09 06:36:13,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:36:13,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:36:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 269 transitions. [2025-03-09 06:36:13,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5213178294573644 [2025-03-09 06:36:13,981 INFO L175 Difference]: Start difference. First operand has 146 places, 143 transitions, 330 flow. Second operand 3 states and 269 transitions. [2025-03-09 06:36:13,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 142 transitions, 482 flow [2025-03-09 06:36:13,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 142 transitions, 460 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-09 06:36:13,983 INFO L231 Difference]: Finished difference. Result has 141 places, 142 transitions, 312 flow [2025-03-09 06:36:13,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=141, PETRI_TRANSITIONS=142} [2025-03-09 06:36:13,985 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2025-03-09 06:36:13,986 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 142 transitions, 312 flow [2025-03-09 06:36:13,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 06:36:13,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:13,986 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:13,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:36:13,986 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:13,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:13,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1788937281, now seen corresponding path program 1 times [2025-03-09 06:36:13,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:13,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452926694] [2025-03-09 06:36:13,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:13,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:13,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:13,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:13,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:14,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:14,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452926694] [2025-03-09 06:36:14,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452926694] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:14,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882277496] [2025-03-09 06:36:14,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:14,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:14,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:14,045 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 06:36:14,046 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 06:36:14,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:36:14,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:36:14,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:14,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:14,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:36:14,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:14,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:14,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882277496] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:14,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:14,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 06:36:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44376847] [2025-03-09 06:36:14,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:14,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 06:36:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:14,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 06:36:14,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 06:36:14,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:14,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 312 flow. Second operand has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 06:36:14,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:14,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:14,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:16,788 INFO L124 PetriNetUnfolderBase]: 24270/51840 cut-off events. [2025-03-09 06:36:16,788 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-03-09 06:36:16,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87338 conditions, 51840 events. 24270/51840 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1483. Compared 548734 event pairs, 21160 based on Foata normal form. 2/44332 useless extension candidates. Maximal degree in co-relation 87303. Up to 35367 conditions per place. [2025-03-09 06:36:17,059 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 74 selfloop transitions, 7 changer transitions 0/145 dead transitions. [2025-03-09 06:36:17,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 145 transitions, 489 flow [2025-03-09 06:36:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:36:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:36:17,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 531 transitions. [2025-03-09 06:36:17,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4410299003322259 [2025-03-09 06:36:17,061 INFO L175 Difference]: Start difference. First operand has 141 places, 142 transitions, 312 flow. Second operand 7 states and 531 transitions. [2025-03-09 06:36:17,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 145 transitions, 489 flow [2025-03-09 06:36:17,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 145 transitions, 475 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:36:17,063 INFO L231 Difference]: Finished difference. Result has 147 places, 145 transitions, 338 flow [2025-03-09 06:36:17,064 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2025-03-09 06:36:17,064 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 9 predicate places. [2025-03-09 06:36:17,064 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 338 flow [2025-03-09 06:36:17,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.3) internal successors, (653), 10 states have internal predecessors, (653), 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 06:36:17,065 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:17,065 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:17,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:36:17,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:17,266 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:17,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -543474591, now seen corresponding path program 2 times [2025-03-09 06:36:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099364374] [2025-03-09 06:36:17,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:17,275 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-03-09 06:36:17,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-03-09 06:36:17,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:36:17,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 06:36:17,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:17,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099364374] [2025-03-09 06:36:17,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099364374] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:17,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:17,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:36:17,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506333297] [2025-03-09 06:36:17,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:17,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:17,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:17,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:17,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 172 [2025-03-09 06:36:17,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 06:36:17,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:17,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 172 [2025-03-09 06:36:17,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:20,009 INFO L124 PetriNetUnfolderBase]: 26448/53999 cut-off events. [2025-03-09 06:36:20,009 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2025-03-09 06:36:20,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92892 conditions, 53999 events. 26448/53999 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 1471. Compared 554854 event pairs, 11420 based on Foata normal form. 21/46367 useless extension candidates. Maximal degree in co-relation 92852. Up to 38696 conditions per place. [2025-03-09 06:36:20,245 INFO L140 encePairwiseOnDemand]: 166/172 looper letters, 126 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2025-03-09 06:36:20,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 190 transitions, 686 flow [2025-03-09 06:36:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:20,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2025-03-09 06:36:20,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5508720930232558 [2025-03-09 06:36:20,247 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 338 flow. Second operand 4 states and 379 transitions. [2025-03-09 06:36:20,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 190 transitions, 686 flow [2025-03-09 06:36:20,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 190 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:36:20,250 INFO L231 Difference]: Finished difference. Result has 150 places, 147 transitions, 358 flow [2025-03-09 06:36:20,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=358, PETRI_PLACES=150, PETRI_TRANSITIONS=147} [2025-03-09 06:36:20,251 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 12 predicate places. [2025-03-09 06:36:20,251 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 147 transitions, 358 flow [2025-03-09 06:36:20,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 06:36:20,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:20,251 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:20,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:36:20,251 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:20,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:20,252 INFO L85 PathProgramCache]: Analyzing trace with hash -607239876, now seen corresponding path program 1 times [2025-03-09 06:36:20,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:20,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233834776] [2025-03-09 06:36:20,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:20,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:20,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:36:20,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:36:20,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:20,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:20,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:20,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:20,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233834776] [2025-03-09 06:36:20,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233834776] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:20,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765687169] [2025-03-09 06:36:20,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:20,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:20,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:20,337 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 06:36:20,338 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 06:36:20,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:36:20,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:36:20,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:20,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:20,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 06:36:20,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:20,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:20,501 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:20,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765687169] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:20,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:20,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-09 06:36:20,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524060218] [2025-03-09 06:36:20,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:20,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 06:36:20,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:20,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 06:36:20,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-09 06:36:20,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:20,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 147 transitions, 358 flow. Second operand has 18 states, 18 states have (on average 65.27777777777777) internal successors, (1175), 18 states have internal predecessors, (1175), 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 06:36:20,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:20,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:20,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:24,115 INFO L124 PetriNetUnfolderBase]: 24267/52933 cut-off events. [2025-03-09 06:36:24,115 INFO L125 PetriNetUnfolderBase]: For 1132/1975 co-relation queries the response was YES. [2025-03-09 06:36:24,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89393 conditions, 52933 events. 24267/52933 cut-off events. For 1132/1975 co-relation queries the response was YES. Maximal size of possible extension queue 1487. Compared 569717 event pairs, 21160 based on Foata normal form. 23/45657 useless extension candidates. Maximal degree in co-relation 89316. Up to 35331 conditions per place. [2025-03-09 06:36:24,393 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 75 selfloop transitions, 15 changer transitions 0/155 dead transitions. [2025-03-09 06:36:24,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 155 transitions, 586 flow [2025-03-09 06:36:24,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 06:36:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-09 06:36:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1053 transitions. [2025-03-09 06:36:24,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40813953488372096 [2025-03-09 06:36:24,396 INFO L175 Difference]: Start difference. First operand has 150 places, 147 transitions, 358 flow. Second operand 15 states and 1053 transitions. [2025-03-09 06:36:24,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 155 transitions, 586 flow [2025-03-09 06:36:24,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 155 transitions, 584 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:36:24,399 INFO L231 Difference]: Finished difference. Result has 167 places, 155 transitions, 453 flow [2025-03-09 06:36:24,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=453, PETRI_PLACES=167, PETRI_TRANSITIONS=155} [2025-03-09 06:36:24,400 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 29 predicate places. [2025-03-09 06:36:24,400 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 155 transitions, 453 flow [2025-03-09 06:36:24,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 65.27777777777777) internal successors, (1175), 18 states have internal predecessors, (1175), 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 06:36:24,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:24,400 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:24,406 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 06:36:24,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:24,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:24,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:24,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1829846788, now seen corresponding path program 2 times [2025-03-09 06:36:24,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:24,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770376093] [2025-03-09 06:36:24,602 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:24,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:24,609 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-03-09 06:36:24,612 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 32 statements. [2025-03-09 06:36:24,612 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:36:24,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:24,648 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-09 06:36:24,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770376093] [2025-03-09 06:36:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770376093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:24,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:24,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:36:24,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983334432] [2025-03-09 06:36:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:24,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:36:24,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:24,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:36:24,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:36:24,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 172 [2025-03-09 06:36:24,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 155 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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 06:36:24,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:24,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 172 [2025-03-09 06:36:24,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:28,196 INFO L124 PetriNetUnfolderBase]: 25079/47640 cut-off events. [2025-03-09 06:36:28,196 INFO L125 PetriNetUnfolderBase]: For 1857/1857 co-relation queries the response was YES. [2025-03-09 06:36:28,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86755 conditions, 47640 events. 25079/47640 cut-off events. For 1857/1857 co-relation queries the response was YES. Maximal size of possible extension queue 1326. Compared 460337 event pairs, 819 based on Foata normal form. 441/42004 useless extension candidates. Maximal degree in co-relation 86654. Up to 30745 conditions per place. [2025-03-09 06:36:28,474 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 214 selfloop transitions, 6 changer transitions 0/281 dead transitions. [2025-03-09 06:36:28,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 281 transitions, 1143 flow [2025-03-09 06:36:28,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:36:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:36:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 586 transitions. [2025-03-09 06:36:28,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5678294573643411 [2025-03-09 06:36:28,476 INFO L175 Difference]: Start difference. First operand has 167 places, 155 transitions, 453 flow. Second operand 6 states and 586 transitions. [2025-03-09 06:36:28,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 281 transitions, 1143 flow [2025-03-09 06:36:28,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 281 transitions, 1133 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:36:28,482 INFO L231 Difference]: Finished difference. Result has 167 places, 154 transitions, 451 flow [2025-03-09 06:36:28,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=451, PETRI_PLACES=167, PETRI_TRANSITIONS=154} [2025-03-09 06:36:28,483 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 29 predicate places. [2025-03-09 06:36:28,483 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 154 transitions, 451 flow [2025-03-09 06:36:28,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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 06:36:28,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:28,484 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:28,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 06:36:28,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:28,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:28,485 INFO L85 PathProgramCache]: Analyzing trace with hash -890674840, now seen corresponding path program 1 times [2025-03-09 06:36:28,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:28,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668262840] [2025-03-09 06:36:28,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:28,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:28,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 06:36:28,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 06:36:28,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:28,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-09 06:36:28,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:28,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668262840] [2025-03-09 06:36:28,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668262840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:28,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:28,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:36:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188252816] [2025-03-09 06:36:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:28,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:28,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:28,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:28,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 172 [2025-03-09 06:36:28,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 154 transitions, 451 flow. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:36:28,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:28,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 172 [2025-03-09 06:36:28,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:31,569 INFO L124 PetriNetUnfolderBase]: 24198/45924 cut-off events. [2025-03-09 06:36:31,570 INFO L125 PetriNetUnfolderBase]: For 3446/3446 co-relation queries the response was YES. [2025-03-09 06:36:31,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84696 conditions, 45924 events. 24198/45924 cut-off events. For 3446/3446 co-relation queries the response was YES. Maximal size of possible extension queue 1266. Compared 439721 event pairs, 907 based on Foata normal form. 441/40963 useless extension candidates. Maximal degree in co-relation 84599. Up to 32110 conditions per place. [2025-03-09 06:36:31,874 INFO L140 encePairwiseOnDemand]: 167/172 looper letters, 171 selfloop transitions, 6 changer transitions 0/238 dead transitions. [2025-03-09 06:36:31,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 238 transitions, 971 flow [2025-03-09 06:36:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:36:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:36:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 415 transitions. [2025-03-09 06:36:31,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6031976744186046 [2025-03-09 06:36:31,876 INFO L175 Difference]: Start difference. First operand has 167 places, 154 transitions, 451 flow. Second operand 4 states and 415 transitions. [2025-03-09 06:36:31,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 238 transitions, 971 flow [2025-03-09 06:36:31,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 238 transitions, 955 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-03-09 06:36:31,887 INFO L231 Difference]: Finished difference. Result has 165 places, 154 transitions, 451 flow [2025-03-09 06:36:31,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=165, PETRI_TRANSITIONS=154} [2025-03-09 06:36:31,888 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 27 predicate places. [2025-03-09 06:36:31,888 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 154 transitions, 451 flow [2025-03-09 06:36:31,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:36:31,888 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:31,888 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:31,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-09 06:36:31,888 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:31,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:31,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1261169674, now seen corresponding path program 1 times [2025-03-09 06:36:31,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:31,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251272987] [2025-03-09 06:36:31,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:31,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:31,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:36:31,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:36:31,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:31,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:32,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:32,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251272987] [2025-03-09 06:36:32,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251272987] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:36:32,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398735649] [2025-03-09 06:36:32,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:32,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:36:32,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:32,113 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 06:36:32,115 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 06:36:32,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-09 06:36:32,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-09 06:36:32,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:32,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:32,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 06:36:32,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:36:32,266 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:32,267 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:36:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398735649] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:36:32,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:36:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-03-09 06:36:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549259106] [2025-03-09 06:36:32,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:36:32,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 06:36:32,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:32,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 06:36:32,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-03-09 06:36:32,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:32,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 451 flow. Second operand has 23 states, 23 states have (on average 65.47826086956522) internal successors, (1506), 23 states have internal predecessors, (1506), 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 06:36:32,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:32,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:32,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:35,793 INFO L124 PetriNetUnfolderBase]: 24267/52929 cut-off events. [2025-03-09 06:36:35,793 INFO L125 PetriNetUnfolderBase]: For 3967/3967 co-relation queries the response was YES. [2025-03-09 06:36:35,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90338 conditions, 52929 events. 24267/52929 cut-off events. For 3967/3967 co-relation queries the response was YES. Maximal size of possible extension queue 1489. Compared 569155 event pairs, 21160 based on Foata normal form. 3/45631 useless extension candidates. Maximal degree in co-relation 90207. Up to 35331 conditions per place. [2025-03-09 06:36:36,075 INFO L140 encePairwiseOnDemand]: 168/172 looper letters, 76 selfloop transitions, 21 changer transitions 0/160 dead transitions. [2025-03-09 06:36:36,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 160 transitions, 699 flow [2025-03-09 06:36:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-09 06:36:36,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-09 06:36:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1442 transitions. [2025-03-09 06:36:36,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3992248062015504 [2025-03-09 06:36:36,078 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 451 flow. Second operand 21 states and 1442 transitions. [2025-03-09 06:36:36,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 160 transitions, 699 flow [2025-03-09 06:36:36,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 160 transitions, 691 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:36:36,082 INFO L231 Difference]: Finished difference. Result has 186 places, 160 transitions, 554 flow [2025-03-09 06:36:36,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=554, PETRI_PLACES=186, PETRI_TRANSITIONS=160} [2025-03-09 06:36:36,082 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 48 predicate places. [2025-03-09 06:36:36,082 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 160 transitions, 554 flow [2025-03-09 06:36:36,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 65.47826086956522) internal successors, (1506), 23 states have internal predecessors, (1506), 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 06:36:36,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:36,083 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:36:36,090 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 06:36:36,285 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,SelfDestructingSolverStorable16 [2025-03-09 06:36:36,285 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:36,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:36,285 INFO L85 PathProgramCache]: Analyzing trace with hash 144329515, now seen corresponding path program 2 times [2025-03-09 06:36:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:36,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608542741] [2025-03-09 06:36:36,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:36:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:36,296 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-03-09 06:36:36,300 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 43 statements. [2025-03-09 06:36:36,301 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:36:36,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:36,406 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-03-09 06:36:36,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:36,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608542741] [2025-03-09 06:36:36,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608542741] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:36,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:36,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:36:36,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295332620] [2025-03-09 06:36:36,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:36,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:36:36,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:36,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:36:36,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:36:36,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 172 [2025-03-09 06:36:36,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 160 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 66.33333333333333) internal successors, (398), 6 states have internal predecessors, (398), 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 06:36:36,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:36,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 172 [2025-03-09 06:36:36,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand