./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/09-regions_24-evilcollapse_nr.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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:20:24,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:20:24,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:20:24,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:20:24,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:20:24,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:20:24,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:20:24,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:20:24,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:20:24,640 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:20:24,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:20:24,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:20:24,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:20:24,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:20:24,641 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:20:24,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:20:24,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:20:24,641 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:20:24,642 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:20:24,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:20:24,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:20:24,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:20:24,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:20:24,644 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 -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2025-03-04 15:20:24,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:20:24,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:20:24,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:20:24,885 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:20:24,885 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:20:24,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2025-03-04 15:20:25,993 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9f9e484/246f5bea0ae44c17afc33ee89f7a128b/FLAG592647207 [2025-03-04 15:20:26,272 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:20:26,274 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2025-03-04 15:20:26,294 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9f9e484/246f5bea0ae44c17afc33ee89f7a128b/FLAG592647207 [2025-03-04 15:20:26,571 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9f9e484/246f5bea0ae44c17afc33ee89f7a128b [2025-03-04 15:20:26,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:20:26,575 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:20:26,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:20:26,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:20:26,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:20:26,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:26,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11369eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26, skipping insertion in model container [2025-03-04 15:20:26,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:26,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:20:26,855 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,855 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,855 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,856 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:20:26,895 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:20:26,938 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,939 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,939 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,939 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:20:26,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:20:26,999 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:20:26,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26 WrapperNode [2025-03-04 15:20:27,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:20:27,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:20:27,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:20:27,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:20:27,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,039 INFO L138 Inliner]: procedures = 275, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 219 [2025-03-04 15:20:27,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:20:27,040 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:20:27,040 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:20:27,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:20:27,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,076 INFO L175 MemorySlicer]: Split 86 memory accesses to 1 slices as follows [86]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2025-03-04 15:20:27,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,084 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:20:27,093 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:20:27,093 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:20:27,093 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:20:27,093 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (1/1) ... [2025-03-04 15:20:27,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:20:27,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:27,124 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) [2025-03-04 15:20:27,127 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 [2025-03-04 15:20:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-03-04 15:20:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-03-04 15:20:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:20:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:20:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:20:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:20:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:20:27,146 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:20:27,263 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:20:27,264 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:20:27,580 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:20:27,580 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:20:28,025 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:20:28,026 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:20:28,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:20:28 BoogieIcfgContainer [2025-03-04 15:20:28,027 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:20:28,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:20:28,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:20:28,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:20:28,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:20:26" (1/3) ... [2025-03-04 15:20:28,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2132d566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:20:28, skipping insertion in model container [2025-03-04 15:20:28,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:20:26" (2/3) ... [2025-03-04 15:20:28,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2132d566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:20:28, skipping insertion in model container [2025-03-04 15:20:28,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:20:28" (3/3) ... [2025-03-04 15:20:28,036 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2025-03-04 15:20:28,047 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:20:28,049 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_24-evilcollapse_nr.i that has 2 procedures, 36 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-03-04 15:20:28,049 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:20:28,103 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:20:28,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 122 flow [2025-03-04 15:20:28,164 INFO L124 PetriNetUnfolderBase]: 6/55 cut-off events. [2025-03-04 15:20:28,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:20:28,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 55 events. 6/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 156 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2025-03-04 15:20:28,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 57 transitions, 122 flow [2025-03-04 15:20:28,178 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 55 transitions, 116 flow [2025-03-04 15:20:28,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:20:28,201 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;@5f1dc2ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:20:28,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 15:20:28,209 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:20:28,209 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-03-04 15:20:28,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:20:28,209 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:28,210 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:20:28,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:28,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:28,216 INFO L85 PathProgramCache]: Analyzing trace with hash 17077262, now seen corresponding path program 1 times [2025-03-04 15:20:28,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:28,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008948184] [2025-03-04 15:20:28,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:28,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:28,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:20:28,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:20:28,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:28,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:20:28,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259843695] [2025-03-04 15:20:28,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:28,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:28,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:28,354 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) [2025-03-04 15:20:28,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:20:28,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:20:28,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:20:28,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:28,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:28,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:20:28,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:28,477 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:20:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008948184] [2025-03-04 15:20:28,477 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:20:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259843695] [2025-03-04 15:20:28,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259843695] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:28,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:28,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:20:28,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079334819] [2025-03-04 15:20:28,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:28,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:20:28,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:28,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:20:28,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:20:28,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2025-03-04 15:20:28,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-03-04 15:20:28,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:28,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2025-03-04 15:20:28,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:28,750 INFO L124 PetriNetUnfolderBase]: 246/616 cut-off events. [2025-03-04 15:20:28,750 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-04 15:20:28,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 616 events. 246/616 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3346 event pairs, 175 based on Foata normal form. 1/546 useless extension candidates. Maximal degree in co-relation 987. Up to 397 conditions per place. [2025-03-04 15:20:28,758 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 34 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2025-03-04 15:20:28,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 198 flow [2025-03-04 15:20:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:20:28,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:20:28,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2025-03-04 15:20:28,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2025-03-04 15:20:28,769 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 116 flow. Second operand 3 states and 117 transitions. [2025-03-04 15:20:28,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 198 flow [2025-03-04 15:20:28,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:20:28,776 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 130 flow [2025-03-04 15:20:28,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2025-03-04 15:20:28,783 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2025-03-04 15:20:28,783 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 130 flow [2025-03-04 15:20:28,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-03-04 15:20:28,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:28,784 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:20:28,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:20:28,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 15:20:28,990 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:28,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:28,991 INFO L85 PathProgramCache]: Analyzing trace with hash 17077281, now seen corresponding path program 1 times [2025-03-04 15:20:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336572023] [2025-03-04 15:20:28,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:29,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:20:29,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:20:29,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:29,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:29,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:29,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336572023] [2025-03-04 15:20:29,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336572023] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:29,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:29,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:20:29,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447556244] [2025-03-04 15:20:29,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:29,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:20:29,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:29,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:20:29,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:20:29,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2025-03-04 15:20:29,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-03-04 15:20:29,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:29,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2025-03-04 15:20:29,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:29,365 INFO L124 PetriNetUnfolderBase]: 246/630 cut-off events. [2025-03-04 15:20:29,366 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 15:20:29,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 630 events. 246/630 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3437 event pairs, 175 based on Foata normal form. 4/563 useless extension candidates. Maximal degree in co-relation 1028. Up to 402 conditions per place. [2025-03-04 15:20:29,370 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 32 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2025-03-04 15:20:29,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 202 flow [2025-03-04 15:20:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:20:29,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:20:29,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2025-03-04 15:20:29,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-04 15:20:29,371 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 130 flow. Second operand 3 states and 114 transitions. [2025-03-04 15:20:29,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 202 flow [2025-03-04 15:20:29,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:20:29,373 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 144 flow [2025-03-04 15:20:29,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2025-03-04 15:20:29,373 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2025-03-04 15:20:29,374 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 144 flow [2025-03-04 15:20:29,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2025-03-04 15:20:29,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:29,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:20:29,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:20:29,374 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:29,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash -768604898, now seen corresponding path program 1 times [2025-03-04 15:20:29,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:29,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77952024] [2025-03-04 15:20:29,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:29,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:20:29,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:20:29,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:29,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:29,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77952024] [2025-03-04 15:20:29,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77952024] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:29,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:29,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:20:29,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016005326] [2025-03-04 15:20:29,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:29,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:29,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:29,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:29,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:29,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2025-03-04 15:20:29,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:20:29,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:29,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2025-03-04 15:20:29,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:29,836 INFO L124 PetriNetUnfolderBase]: 246/626 cut-off events. [2025-03-04 15:20:29,836 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-04 15:20:29,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 626 events. 246/626 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3429 event pairs, 175 based on Foata normal form. 4/563 useless extension candidates. Maximal degree in co-relation 1015. Up to 406 conditions per place. [2025-03-04 15:20:29,840 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 33 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2025-03-04 15:20:29,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 218 flow [2025-03-04 15:20:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:20:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:20:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2025-03-04 15:20:29,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-03-04 15:20:29,841 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 144 flow. Second operand 4 states and 133 transitions. [2025-03-04 15:20:29,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 218 flow [2025-03-04 15:20:29,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 58 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:20:29,844 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 160 flow [2025-03-04 15:20:29,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2025-03-04 15:20:29,845 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2025-03-04 15:20:29,845 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 160 flow [2025-03-04 15:20:29,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:20:29,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:29,846 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:29,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:20:29,846 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:29,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1037370921, now seen corresponding path program 1 times [2025-03-04 15:20:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:29,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820025254] [2025-03-04 15:20:29,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:29,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:20:29,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:20:29,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:29,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:29,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:29,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:29,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820025254] [2025-03-04 15:20:29,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820025254] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:29,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630499955] [2025-03-04 15:20:29,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:29,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:30,001 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) [2025-03-04 15:20:30,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:20:30,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:20:30,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:20:30,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:30,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:30,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:20:30,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:30,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:30,178 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:20:30,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:30,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630499955] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:20:30,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:20:30,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 15:20:30,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194206030] [2025-03-04 15:20:30,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:20:30,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:20:30,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:30,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:20:30,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:20:30,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 57 [2025-03-04 15:20:30,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 160 flow. Second operand has 10 states, 10 states have (on average 24.5) internal successors, (245), 10 states have internal predecessors, (245), 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) [2025-03-04 15:20:30,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:30,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 57 [2025-03-04 15:20:30,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:30,802 INFO L124 PetriNetUnfolderBase]: 246/642 cut-off events. [2025-03-04 15:20:30,802 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-03-04 15:20:30,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 642 events. 246/642 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3520 event pairs, 175 based on Foata normal form. 6/581 useless extension candidates. Maximal degree in co-relation 1034. Up to 396 conditions per place. [2025-03-04 15:20:30,805 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 36 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2025-03-04 15:20:30,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 280 flow [2025-03-04 15:20:30,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:20:30,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:20:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2025-03-04 15:20:30,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4951267056530214 [2025-03-04 15:20:30,806 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 160 flow. Second operand 9 states and 254 transitions. [2025-03-04 15:20:30,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 280 flow [2025-03-04 15:20:30,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:20:30,808 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 210 flow [2025-03-04 15:20:30,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=210, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2025-03-04 15:20:30,809 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2025-03-04 15:20:30,809 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 210 flow [2025-03-04 15:20:30,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 24.5) internal successors, (245), 10 states have internal predecessors, (245), 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) [2025-03-04 15:20:30,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:30,809 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 15:20:30,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:20:31,014 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 [2025-03-04 15:20:31,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:31,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:31,015 INFO L85 PathProgramCache]: Analyzing trace with hash -481045164, now seen corresponding path program 1 times [2025-03-04 15:20:31,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:31,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131813418] [2025-03-04 15:20:31,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:31,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:31,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:20:31,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:20:31,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:31,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:31,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:31,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:31,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131813418] [2025-03-04 15:20:31,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131813418] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:31,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892539453] [2025-03-04 15:20:31,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:31,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:31,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:31,177 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) [2025-03-04 15:20:31,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 15:20:31,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:20:31,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:20:31,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:31,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:31,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:20:31,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:31,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:20:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892539453] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:20:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-04 15:20:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883706182] [2025-03-04 15:20:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:31,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:20:31,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:31,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:20:31,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:20:31,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 57 [2025-03-04 15:20:31,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2025-03-04 15:20:31,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:31,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 57 [2025-03-04 15:20:31,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:31,525 INFO L124 PetriNetUnfolderBase]: 246/638 cut-off events. [2025-03-04 15:20:31,525 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-03-04 15:20:31,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 638 events. 246/638 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3485 event pairs, 175 based on Foata normal form. 4/575 useless extension candidates. Maximal degree in co-relation 1051. Up to 394 conditions per place. [2025-03-04 15:20:31,528 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 28 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2025-03-04 15:20:31,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 60 transitions, 268 flow [2025-03-04 15:20:31,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:20:31,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:20:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-03-04 15:20:31,530 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2025-03-04 15:20:31,530 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 210 flow. Second operand 4 states and 132 transitions. [2025-03-04 15:20:31,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 60 transitions, 268 flow [2025-03-04 15:20:31,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 60 transitions, 260 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 15:20:31,532 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 204 flow [2025-03-04 15:20:31,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2025-03-04 15:20:31,533 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2025-03-04 15:20:31,533 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 204 flow [2025-03-04 15:20:31,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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) [2025-03-04 15:20:31,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:31,533 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-03-04 15:20:31,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 15:20:31,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:31,734 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:31,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash 717170382, now seen corresponding path program 1 times [2025-03-04 15:20:31,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:31,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043126497] [2025-03-04 15:20:31,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:31,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:31,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:20:31,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:20:31,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:31,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 15:20:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043126497] [2025-03-04 15:20:31,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043126497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:31,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:31,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:20:31,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664781931] [2025-03-04 15:20:31,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:31,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:31,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:31,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:31,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:31,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 57 [2025-03-04 15:20:31,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-03-04 15:20:31,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:31,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 57 [2025-03-04 15:20:31,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:32,042 INFO L124 PetriNetUnfolderBase]: 246/636 cut-off events. [2025-03-04 15:20:32,043 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2025-03-04 15:20:32,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 636 events. 246/636 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3465 event pairs, 175 based on Foata normal form. 2/571 useless extension candidates. Maximal degree in co-relation 1057. Up to 400 conditions per place. [2025-03-04 15:20:32,045 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 28 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2025-03-04 15:20:32,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 60 transitions, 276 flow [2025-03-04 15:20:32,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:20:32,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:20:32,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-03-04 15:20:32,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2025-03-04 15:20:32,047 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 204 flow. Second operand 4 states and 132 transitions. [2025-03-04 15:20:32,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 60 transitions, 276 flow [2025-03-04 15:20:32,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 60 transitions, 256 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:20:32,048 INFO L231 Difference]: Finished difference. Result has 69 places, 60 transitions, 208 flow [2025-03-04 15:20:32,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=69, PETRI_TRANSITIONS=60} [2025-03-04 15:20:32,049 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2025-03-04 15:20:32,049 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 60 transitions, 208 flow [2025-03-04 15:20:32,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2025-03-04 15:20:32,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:32,049 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-04 15:20:32,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:20:32,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:32,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:32,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2005987351, now seen corresponding path program 2 times [2025-03-04 15:20:32,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:32,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787619104] [2025-03-04 15:20:32,050 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:20:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:32,080 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-04 15:20:32,084 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-03-04 15:20:32,084 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:20:32,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 15:20:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787619104] [2025-03-04 15:20:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787619104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:32,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:20:32,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:20:32,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580733491] [2025-03-04 15:20:32,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:32,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:20:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:32,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:20:32,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:20:32,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2025-03-04 15:20:32,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 60 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:20:32,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:32,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2025-03-04 15:20:32,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:32,329 INFO L124 PetriNetUnfolderBase]: 246/634 cut-off events. [2025-03-04 15:20:32,330 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2025-03-04 15:20:32,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 634 events. 246/634 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3471 event pairs, 175 based on Foata normal form. 2/571 useless extension candidates. Maximal degree in co-relation 1038. Up to 405 conditions per place. [2025-03-04 15:20:32,332 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 43 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2025-03-04 15:20:32,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 368 flow [2025-03-04 15:20:32,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:20:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:20:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2025-03-04 15:20:32,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2025-03-04 15:20:32,334 INFO L175 Difference]: Start difference. First operand has 69 places, 60 transitions, 208 flow. Second operand 4 states and 136 transitions. [2025-03-04 15:20:32,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 368 flow [2025-03-04 15:20:32,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 68 transitions, 344 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 15:20:32,337 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 218 flow [2025-03-04 15:20:32,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2025-03-04 15:20:32,338 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2025-03-04 15:20:32,339 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 218 flow [2025-03-04 15:20:32,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:20:32,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:32,340 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2025-03-04 15:20:32,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:20:32,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:32,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1174863203, now seen corresponding path program 1 times [2025-03-04 15:20:32,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:32,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462382567] [2025-03-04 15:20:32,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:32,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:20:32,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:20:32,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:32,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:32,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462382567] [2025-03-04 15:20:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462382567] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280204695] [2025-03-04 15:20:32,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:32,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:32,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:32,574 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) [2025-03-04 15:20:32,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 15:20:32,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 15:20:32,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 15:20:32,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:32,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:32,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:20:32,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:32,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:20:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:32,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280204695] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:20:32,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:20:32,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-03-04 15:20:32,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062546432] [2025-03-04 15:20:32,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:20:32,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 15:20:32,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:32,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 15:20:32,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-04 15:20:32,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 57 [2025-03-04 15:20:32,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 218 flow. Second operand has 18 states, 18 states have (on average 24.833333333333332) internal successors, (447), 18 states have internal predecessors, (447), 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) [2025-03-04 15:20:32,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:32,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 57 [2025-03-04 15:20:32,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:33,665 INFO L124 PetriNetUnfolderBase]: 246/682 cut-off events. [2025-03-04 15:20:33,666 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2025-03-04 15:20:33,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1329 conditions, 682 events. 246/682 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3502 event pairs, 175 based on Foata normal form. 8/625 useless extension candidates. Maximal degree in co-relation 1178. Up to 396 conditions per place. [2025-03-04 15:20:33,668 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 48 selfloop transitions, 15 changer transitions 0/84 dead transitions. [2025-03-04 15:20:33,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 84 transitions, 506 flow [2025-03-04 15:20:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 15:20:33,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 15:20:33,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 410 transitions. [2025-03-04 15:20:33,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47953216374269003 [2025-03-04 15:20:33,670 INFO L175 Difference]: Start difference. First operand has 72 places, 61 transitions, 218 flow. Second operand 15 states and 410 transitions. [2025-03-04 15:20:33,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 84 transitions, 506 flow [2025-03-04 15:20:33,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:20:33,675 INFO L231 Difference]: Finished difference. Result has 89 places, 70 transitions, 348 flow [2025-03-04 15:20:33,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=348, PETRI_PLACES=89, PETRI_TRANSITIONS=70} [2025-03-04 15:20:33,676 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2025-03-04 15:20:33,677 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 70 transitions, 348 flow [2025-03-04 15:20:33,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 24.833333333333332) internal successors, (447), 18 states have internal predecessors, (447), 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) [2025-03-04 15:20:33,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:33,677 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-04 15:20:33,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 15:20:33,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:33,878 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:33,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1446539037, now seen corresponding path program 2 times [2025-03-04 15:20:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969012142] [2025-03-04 15:20:33,879 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:20:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:33,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:20:33,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:20:33,990 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:20:33,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:34,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969012142] [2025-03-04 15:20:34,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969012142] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:34,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235219813] [2025-03-04 15:20:34,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:20:34,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:34,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:34,461 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) [2025-03-04 15:20:34,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 15:20:34,646 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-03-04 15:20:34,739 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:20:34,740 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:20:34,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:34,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 15:20:34,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:34,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:20:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:35,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235219813] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:20:35,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:20:35,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-04 15:20:35,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307122875] [2025-03-04 15:20:35,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:20:35,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 15:20:35,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:35,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 15:20:35,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 15:20:35,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 57 [2025-03-04 15:20:35,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 70 transitions, 348 flow. Second operand has 34 states, 34 states have (on average 24.676470588235293) internal successors, (839), 34 states have internal predecessors, (839), 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) [2025-03-04 15:20:35,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:35,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 57 [2025-03-04 15:20:35,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:36,836 INFO L124 PetriNetUnfolderBase]: 246/778 cut-off events. [2025-03-04 15:20:36,836 INFO L125 PetriNetUnfolderBase]: For 1057/1057 co-relation queries the response was YES. [2025-03-04 15:20:36,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1807 conditions, 778 events. 246/778 cut-off events. For 1057/1057 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3541 event pairs, 175 based on Foata normal form. 16/729 useless extension candidates. Maximal degree in co-relation 1444. Up to 396 conditions per place. [2025-03-04 15:20:36,840 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 72 selfloop transitions, 31 changer transitions 0/124 dead transitions. [2025-03-04 15:20:36,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 124 transitions, 1018 flow [2025-03-04 15:20:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 15:20:36,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-04 15:20:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 822 transitions. [2025-03-04 15:20:36,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46519524617996605 [2025-03-04 15:20:36,842 INFO L175 Difference]: Start difference. First operand has 89 places, 70 transitions, 348 flow. Second operand 31 states and 822 transitions. [2025-03-04 15:20:36,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 124 transitions, 1018 flow [2025-03-04 15:20:36,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 124 transitions, 948 flow, removed 30 selfloop flow, removed 5 redundant places. [2025-03-04 15:20:36,846 INFO L231 Difference]: Finished difference. Result has 123 places, 87 transitions, 584 flow [2025-03-04 15:20:36,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=584, PETRI_PLACES=123, PETRI_TRANSITIONS=87} [2025-03-04 15:20:36,847 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 67 predicate places. [2025-03-04 15:20:36,847 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 87 transitions, 584 flow [2025-03-04 15:20:36,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 24.676470588235293) internal successors, (839), 34 states have internal predecessors, (839), 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) [2025-03-04 15:20:36,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:36,848 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-04 15:20:36,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 15:20:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:37,049 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:37,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:37,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1149077533, now seen corresponding path program 3 times [2025-03-04 15:20:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358156721] [2025-03-04 15:20:37,049 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:20:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:37,180 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:20:43,655 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:20:43,655 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2025-03-04 15:20:43,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:20:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358156721] [2025-03-04 15:20:45,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358156721] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:45,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751464165] [2025-03-04 15:20:45,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:20:45,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:45,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:45,097 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) [2025-03-04 15:20:45,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 15:20:45,370 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-03-04 15:20:45,412 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 88 statements. [2025-03-04 15:20:45,412 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 15:20:45,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:45,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 15:20:45,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:45,665 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-04 15:20:45,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:20:45,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751464165] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:20:45,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:20:45,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 40 [2025-03-04 15:20:45,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591996954] [2025-03-04 15:20:45,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:20:45,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:20:45,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:45,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:20:45,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1246, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 15:20:45,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2025-03-04 15:20:45,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 87 transitions, 584 flow. Second operand has 9 states, 9 states have (on average 22.444444444444443) internal successors, (202), 9 states have internal predecessors, (202), 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) [2025-03-04 15:20:45,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:45,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2025-03-04 15:20:45,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:46,446 INFO L124 PetriNetUnfolderBase]: 246/763 cut-off events. [2025-03-04 15:20:46,446 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-03-04 15:20:46,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 763 events. 246/763 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3477 event pairs, 175 based on Foata normal form. 15/713 useless extension candidates. Maximal degree in co-relation 1411. Up to 389 conditions per place. [2025-03-04 15:20:46,450 INFO L140 encePairwiseOnDemand]: 47/57 looper letters, 61 selfloop transitions, 41 changer transitions 0/121 dead transitions. [2025-03-04 15:20:46,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 121 transitions, 1168 flow [2025-03-04 15:20:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:20:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:20:46,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 274 transitions. [2025-03-04 15:20:46,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4370015948963317 [2025-03-04 15:20:46,452 INFO L175 Difference]: Start difference. First operand has 123 places, 87 transitions, 584 flow. Second operand 11 states and 274 transitions. [2025-03-04 15:20:46,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 121 transitions, 1168 flow [2025-03-04 15:20:46,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 121 transitions, 1084 flow, removed 18 selfloop flow, removed 12 redundant places. [2025-03-04 15:20:46,461 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 1102 flow [2025-03-04 15:20:46,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1102, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2025-03-04 15:20:46,461 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2025-03-04 15:20:46,461 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 1102 flow [2025-03-04 15:20:46,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.444444444444443) internal successors, (202), 9 states have internal predecessors, (202), 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) [2025-03-04 15:20:46,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:46,462 INFO L206 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:20:46,472 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 15:20:46,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:46,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:46,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:46,665 INFO L85 PathProgramCache]: Analyzing trace with hash 15858479, now seen corresponding path program 1 times [2025-03-04 15:20:46,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:46,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139796724] [2025-03-04 15:20:46,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:46,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:46,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:20:46,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:20:46,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:46,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-03-04 15:20:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:20:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139796724] [2025-03-04 15:20:47,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139796724] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:20:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95443970] [2025-03-04 15:20:47,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:47,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:20:47,051 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) [2025-03-04 15:20:47,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 15:20:47,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-04 15:20:47,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:20:47,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:20:47,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:20:47,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 1672 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 15:20:47,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:20:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:47,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:20:48,633 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:20:48,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95443970] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:20:48,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:20:48,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 33, 33] total 64 [2025-03-04 15:20:48,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53252516] [2025-03-04 15:20:48,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:20:48,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2025-03-04 15:20:48,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:20:48,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2025-03-04 15:20:48,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 15:20:48,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2025-03-04 15:20:48,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 1102 flow. Second operand has 64 states, 64 states have (on average 22.671875) internal successors, (1451), 64 states have internal predecessors, (1451), 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) [2025-03-04 15:20:48,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:20:48,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2025-03-04 15:20:48,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:20:55,074 INFO L124 PetriNetUnfolderBase]: 262/1113 cut-off events. [2025-03-04 15:20:55,074 INFO L125 PetriNetUnfolderBase]: For 8428/8428 co-relation queries the response was YES. [2025-03-04 15:20:55,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1113 events. 262/1113 cut-off events. For 8428/8428 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3518 event pairs, 175 based on Foata normal form. 46/1094 useless extension candidates. Maximal degree in co-relation 3028. Up to 394 conditions per place. [2025-03-04 15:20:55,081 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 150 selfloop transitions, 216 changer transitions 0/385 dead transitions. [2025-03-04 15:20:55,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 385 transitions, 5478 flow [2025-03-04 15:20:55,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2025-03-04 15:20:55,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2025-03-04 15:20:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 4234 transitions. [2025-03-04 15:20:55,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4081357239251976 [2025-03-04 15:20:55,090 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 1102 flow. Second operand 182 states and 4234 transitions. [2025-03-04 15:20:55,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 385 transitions, 5478 flow [2025-03-04 15:20:55,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 385 transitions, 5392 flow, removed 39 selfloop flow, removed 4 redundant places. [2025-03-04 15:20:55,109 INFO L231 Difference]: Finished difference. Result has 349 places, 274 transitions, 3761 flow [2025-03-04 15:20:55,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=182, PETRI_FLOW=3761, PETRI_PLACES=349, PETRI_TRANSITIONS=274} [2025-03-04 15:20:55,110 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 293 predicate places. [2025-03-04 15:20:55,110 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 274 transitions, 3761 flow [2025-03-04 15:20:55,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 22.671875) internal successors, (1451), 64 states have internal predecessors, (1451), 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) [2025-03-04 15:20:55,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:20:55,111 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:20:55,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 15:20:55,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:20:55,311 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-04 15:20:55,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:20:55,313 INFO L85 PathProgramCache]: Analyzing trace with hash 904448681, now seen corresponding path program 1 times [2025-03-04 15:20:55,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:20:55,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76743190] [2025-03-04 15:20:55,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:20:55,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:20:55,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes.