./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --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/weaver/chl-poker-hand-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:25:42,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:25:42,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:25:42,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:25:42,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:25:42,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:25:42,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:25:42,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:25:42,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:25:42,283 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:25:42,283 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:25:42,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:25:42,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:25:42,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:25:42,284 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:25:42,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:25:42,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:25:42,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:25:42,285 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 -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2025-03-04 15:25:42,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:25:42,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:25:42,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:25:42,534 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:25:42,535 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:25:42,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2025-03-04 15:25:43,742 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a231f92f/0fc0ea302b304aafa4b50debf73e286b/FLAG221022ba8 [2025-03-04 15:25:44,019 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:25:44,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2025-03-04 15:25:44,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a231f92f/0fc0ea302b304aafa4b50debf73e286b/FLAG221022ba8 [2025-03-04 15:25:44,318 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a231f92f/0fc0ea302b304aafa4b50debf73e286b [2025-03-04 15:25:44,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:25:44,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:25:44,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:25:44,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:25:44,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:25:44,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22350c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44, skipping insertion in model container [2025-03-04 15:25:44,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:25:44,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:25:44,560 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:25:44,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:25:44,628 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:25:44,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44 WrapperNode [2025-03-04 15:25:44,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:25:44,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:25:44,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:25:44,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:25:44,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,695 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1667 [2025-03-04 15:25:44,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:25:44,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:25:44,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:25:44,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:25:44,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,717 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,747 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2025-03-04 15:25:44,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,772 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,780 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:25:44,789 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:25:44,789 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:25:44,789 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:25:44,789 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (1/1) ... [2025-03-04 15:25:44,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:25:44,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:44,816 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 15:25:44,819 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 15:25:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:25:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:25:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:25:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:25:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:25:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:25:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:25:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:25:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:25:44,839 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 15:25:44,981 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:25:44,984 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:25:46,402 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:25:46,402 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:25:48,152 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:25:48,152 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:25:48,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:25:48 BoogieIcfgContainer [2025-03-04 15:25:48,153 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:25:48,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:25:48,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:25:48,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:25:48,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:25:44" (1/3) ... [2025-03-04 15:25:48,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287f121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:25:48, skipping insertion in model container [2025-03-04 15:25:48,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:25:44" (2/3) ... [2025-03-04 15:25:48,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287f121c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:25:48, skipping insertion in model container [2025-03-04 15:25:48,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:25:48" (3/3) ... [2025-03-04 15:25:48,159 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2025-03-04 15:25:48,170 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:25:48,172 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-poker-hand-symm.wvr.c that has 3 procedures, 152 locations, 1 initial locations, 12 loop locations, and 70 error locations. [2025-03-04 15:25:48,172 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:25:48,660 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 15:25:48,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 179 transitions, 372 flow [2025-03-04 15:25:48,782 INFO L124 PetriNetUnfolderBase]: 28/177 cut-off events. [2025-03-04 15:25:48,784 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 15:25:48,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 28/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 835 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 123. Up to 7 conditions per place. [2025-03-04 15:25:48,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 179 transitions, 372 flow [2025-03-04 15:25:48,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 176 transitions, 364 flow [2025-03-04 15:25:48,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:25:48,820 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;@229f231, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:25:48,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2025-03-04 15:25:48,828 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:25:48,829 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-04 15:25:48,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:25:48,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:48,830 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 15:25:48,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:25:48,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 4649085, now seen corresponding path program 1 times [2025-03-04 15:25:48,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:48,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700698346] [2025-03-04 15:25:48,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:48,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:25:48,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:25:48,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:48,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:49,077 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 15:25:49,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:49,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700698346] [2025-03-04 15:25:49,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700698346] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:49,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:49,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285279322] [2025-03-04 15:25:49,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:49,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:25:49,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:49,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:25:49,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:25:49,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:25:49,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 176 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 15:25:49,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:49,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:25:49,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:51,755 INFO L124 PetriNetUnfolderBase]: 6352/9904 cut-off events. [2025-03-04 15:25:51,755 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2025-03-04 15:25:51,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19921 conditions, 9904 events. 6352/9904 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60531 event pairs, 5000 based on Foata normal form. 10/5715 useless extension candidates. Maximal degree in co-relation 19544. Up to 9865 conditions per place. [2025-03-04 15:25:51,810 INFO L140 encePairwiseOnDemand]: 114/179 looper letters, 141 selfloop transitions, 25 changer transitions 2/176 dead transitions. [2025-03-04 15:25:51,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 176 transitions, 698 flow [2025-03-04 15:25:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:25:51,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:25:51,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-03-04 15:25:51,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3505586592178771 [2025-03-04 15:25:51,826 INFO L175 Difference]: Start difference. First operand has 155 places, 176 transitions, 364 flow. Second operand 4 states and 251 transitions. [2025-03-04 15:25:51,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 176 transitions, 698 flow [2025-03-04 15:25:51,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 176 transitions, 690 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:25:51,837 INFO L231 Difference]: Finished difference. Result has 137 places, 174 transitions, 531 flow [2025-03-04 15:25:51,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=531, PETRI_PLACES=137, PETRI_TRANSITIONS=174} [2025-03-04 15:25:51,841 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -18 predicate places. [2025-03-04 15:25:51,842 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 174 transitions, 531 flow [2025-03-04 15:25:51,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 15:25:51,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:51,842 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-04 15:25:51,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:25:51,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:25:51,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1066407141, now seen corresponding path program 1 times [2025-03-04 15:25:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:51,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870503916] [2025-03-04 15:25:51,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:51,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:51,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:25:51,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:25:51,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:51,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:51,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:51,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870503916] [2025-03-04 15:25:51,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870503916] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:25:51,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100387404] [2025-03-04 15:25:51,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:51,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:25:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:52,000 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 15:25:52,002 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 15:25:52,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:25:52,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:25:52,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:52,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:52,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:25:52,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:25:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:52,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:25:52,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100387404] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:52,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:25:52,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-04 15:25:52,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452778754] [2025-03-04 15:25:52,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:52,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:25:52,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:52,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:25:52,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:25:52,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:25:52,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 174 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:52,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:52,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:25:52,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:54,458 INFO L124 PetriNetUnfolderBase]: 6352/9894 cut-off events. [2025-03-04 15:25:54,459 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2025-03-04 15:25:54,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19901 conditions, 9894 events. 6352/9894 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60730 event pairs, 5000 based on Foata normal form. 8/5718 useless extension candidates. Maximal degree in co-relation 19713. Up to 9824 conditions per place. [2025-03-04 15:25:54,504 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 116 selfloop transitions, 42 changer transitions 0/166 dead transitions. [2025-03-04 15:25:54,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 166 transitions, 815 flow [2025-03-04 15:25:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:25:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:25:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 232 transitions. [2025-03-04 15:25:54,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21601489757914338 [2025-03-04 15:25:54,507 INFO L175 Difference]: Start difference. First operand has 137 places, 174 transitions, 531 flow. Second operand 6 states and 232 transitions. [2025-03-04 15:25:54,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 166 transitions, 815 flow [2025-03-04 15:25:54,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 166 transitions, 815 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:25:54,511 INFO L231 Difference]: Finished difference. Result has 132 places, 166 transitions, 583 flow [2025-03-04 15:25:54,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=132, PETRI_TRANSITIONS=166} [2025-03-04 15:25:54,511 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -23 predicate places. [2025-03-04 15:25:54,511 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 166 transitions, 583 flow [2025-03-04 15:25:54,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:25:54,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:54,512 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-04 15:25:54,521 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 15:25:54,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:25:54,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:25:54,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:54,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1301112498, now seen corresponding path program 1 times [2025-03-04 15:25:54,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:54,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916076511] [2025-03-04 15:25:54,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:54,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:54,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:25:54,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:25:54,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:54,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:54,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:54,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916076511] [2025-03-04 15:25:54,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916076511] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:25:54,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739406330] [2025-03-04 15:25:54,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:54,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:25:54,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:54,829 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 15:25:54,831 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 15:25:55,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:25:55,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:25:55,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:55,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:55,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:25:55,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:25:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:55,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:25:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:25:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739406330] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:25:55,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:25:55,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 15:25:55,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800437219] [2025-03-04 15:25:55,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:25:55,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 15:25:55,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:55,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 15:25:55,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 15:25:55,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:25:55,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 166 transitions, 583 flow. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 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 15:25:55,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:55,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:25:55,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:57,550 INFO L124 PetriNetUnfolderBase]: 6376/9990 cut-off events. [2025-03-04 15:25:57,550 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2025-03-04 15:25:57,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20277 conditions, 9990 events. 6376/9990 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 61783 event pairs, 5000 based on Foata normal form. 24/5835 useless extension candidates. Maximal degree in co-relation 19715. Up to 9859 conditions per place. [2025-03-04 15:25:57,581 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 133 selfloop transitions, 97 changer transitions 0/238 dead transitions. [2025-03-04 15:25:57,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 238 transitions, 1517 flow [2025-03-04 15:25:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:25:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:25:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 364 transitions. [2025-03-04 15:25:57,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20335195530726258 [2025-03-04 15:25:57,584 INFO L175 Difference]: Start difference. First operand has 132 places, 166 transitions, 583 flow. Second operand 10 states and 364 transitions. [2025-03-04 15:25:57,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 238 transitions, 1517 flow [2025-03-04 15:25:57,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 238 transitions, 1309 flow, removed 36 selfloop flow, removed 5 redundant places. [2025-03-04 15:25:57,589 INFO L231 Difference]: Finished difference. Result has 139 places, 238 transitions, 1173 flow [2025-03-04 15:25:57,590 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1173, PETRI_PLACES=139, PETRI_TRANSITIONS=238} [2025-03-04 15:25:57,590 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -16 predicate places. [2025-03-04 15:25:57,590 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 238 transitions, 1173 flow [2025-03-04 15:25:57,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 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 15:25:57,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:57,591 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:25:57,598 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 15:25:57,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-04 15:25:57,791 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:25:57,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash 143001950, now seen corresponding path program 1 times [2025-03-04 15:25:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:57,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820909754] [2025-03-04 15:25:57,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:25:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:57,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:25:57,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:25:57,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:25:57,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:57,944 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 15:25:57,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:57,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820909754] [2025-03-04 15:25:57,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820909754] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:25:57,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:25:57,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:25:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385633735] [2025-03-04 15:25:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:25:57,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:25:57,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:25:57,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:25:57,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:25:57,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2025-03-04 15:25:57,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 238 transitions, 1173 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 15:25:57,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:25:57,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2025-03-04 15:25:57,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:25:59,543 INFO L124 PetriNetUnfolderBase]: 6374/9988 cut-off events. [2025-03-04 15:25:59,543 INFO L125 PetriNetUnfolderBase]: For 341/341 co-relation queries the response was YES. [2025-03-04 15:25:59,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20330 conditions, 9988 events. 6374/9988 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 61610 event pairs, 5000 based on Foata normal form. 2/5807 useless extension candidates. Maximal degree in co-relation 20077. Up to 9934 conditions per place. [2025-03-04 15:25:59,572 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 213 selfloop transitions, 7 changer transitions 0/236 dead transitions. [2025-03-04 15:25:59,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 236 transitions, 1605 flow [2025-03-04 15:25:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:25:59,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:25:59,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2025-03-04 15:25:59,575 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39664804469273746 [2025-03-04 15:25:59,575 INFO L175 Difference]: Start difference. First operand has 139 places, 238 transitions, 1173 flow. Second operand 3 states and 213 transitions. [2025-03-04 15:25:59,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 236 transitions, 1605 flow [2025-03-04 15:25:59,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 236 transitions, 1503 flow, removed 24 selfloop flow, removed 2 redundant places. [2025-03-04 15:25:59,581 INFO L231 Difference]: Finished difference. Result has 139 places, 236 transitions, 1077 flow [2025-03-04 15:25:59,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1063, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1077, PETRI_PLACES=139, PETRI_TRANSITIONS=236} [2025-03-04 15:25:59,586 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -16 predicate places. [2025-03-04 15:25:59,586 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 236 transitions, 1077 flow [2025-03-04 15:25:59,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 15:25:59,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:25:59,586 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-04 15:25:59,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:25:59,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:25:59,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:25:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash -826760522, now seen corresponding path program 2 times [2025-03-04 15:25:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:25:59,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994663348] [2025-03-04 15:25:59,587 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:25:59,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:25:59,602 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-04 15:25:59,605 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-04 15:25:59,606 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:25:59,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:25:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:25:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994663348] [2025-03-04 15:25:59,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994663348] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:25:59,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598658259] [2025-03-04 15:25:59,643 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:25:59,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:25:59,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:25:59,645 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 15:25:59,647 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 15:25:59,957 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-04 15:25:59,968 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-04 15:25:59,968 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:25:59,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:25:59,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:25:59,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:25:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:25:59,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:00,022 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:26:00,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598658259] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:00,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:00,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-03-04 15:26:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19802429] [2025-03-04 15:26:00,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:00,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 15:26:00,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:00,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 15:26:00,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-04 15:26:00,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:26:00,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 236 transitions, 1077 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 15:26:00,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:00,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:26:00,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:01,681 INFO L124 PetriNetUnfolderBase]: 6374/9980 cut-off events. [2025-03-04 15:26:01,681 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2025-03-04 15:26:01,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20237 conditions, 9980 events. 6374/9980 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 61477 event pairs, 5000 based on Foata normal form. 8/5806 useless extension candidates. Maximal degree in co-relation 20144. Up to 9827 conditions per place. [2025-03-04 15:26:01,704 INFO L140 encePairwiseOnDemand]: 151/179 looper letters, 125 selfloop transitions, 95 changer transitions 0/228 dead transitions. [2025-03-04 15:26:01,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 228 transitions, 1437 flow [2025-03-04 15:26:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 15:26:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 15:26:01,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 222 transitions. [2025-03-04 15:26:01,706 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.15502793296089384 [2025-03-04 15:26:01,706 INFO L175 Difference]: Start difference. First operand has 139 places, 236 transitions, 1077 flow. Second operand 8 states and 222 transitions. [2025-03-04 15:26:01,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 228 transitions, 1437 flow [2025-03-04 15:26:01,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 228 transitions, 1350 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-03-04 15:26:01,711 INFO L231 Difference]: Finished difference. Result has 133 places, 228 transitions, 1100 flow [2025-03-04 15:26:01,711 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1100, PETRI_PLACES=133, PETRI_TRANSITIONS=228} [2025-03-04 15:26:01,711 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -22 predicate places. [2025-03-04 15:26:01,712 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 228 transitions, 1100 flow [2025-03-04 15:26:01,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 15:26:01,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:01,712 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:01,719 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 15:26:01,912 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 15:26:01,913 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:01,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:01,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1635981012, now seen corresponding path program 1 times [2025-03-04 15:26:01,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:01,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61091216] [2025-03-04 15:26:01,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:01,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:01,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 15:26:01,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 15:26:01,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:01,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:26:02,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:02,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61091216] [2025-03-04 15:26:02,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61091216] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:02,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503789316] [2025-03-04 15:26:02,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:02,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:02,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:02,055 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 15:26:02,057 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 15:26:02,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 15:26:02,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 15:26:02,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:02,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:02,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:26:02,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:26:02,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:26:02,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503789316] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:02,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 15:26:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090869755] [2025-03-04 15:26:02,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:02,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 15:26:02,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:02,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 15:26:02,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-03-04 15:26:02,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:26:02,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 228 transitions, 1100 flow. Second operand has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 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 15:26:02,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:02,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:26:02,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:04,304 INFO L124 PetriNetUnfolderBase]: 6356/9962 cut-off events. [2025-03-04 15:26:04,304 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2025-03-04 15:26:04,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20213 conditions, 9962 events. 6356/9962 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60662 event pairs, 5000 based on Foata normal form. 13/5793 useless extension candidates. Maximal degree in co-relation 19684. Up to 9852 conditions per place. [2025-03-04 15:26:04,337 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 111 selfloop transitions, 91 changer transitions 0/210 dead transitions. [2025-03-04 15:26:04,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 210 transitions, 1393 flow [2025-03-04 15:26:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 15:26:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 15:26:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 319 transitions. [2025-03-04 15:26:04,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.137086377309841 [2025-03-04 15:26:04,339 INFO L175 Difference]: Start difference. First operand has 133 places, 228 transitions, 1100 flow. Second operand 13 states and 319 transitions. [2025-03-04 15:26:04,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 210 transitions, 1393 flow [2025-03-04 15:26:04,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 210 transitions, 1190 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-04 15:26:04,345 INFO L231 Difference]: Finished difference. Result has 137 places, 210 transitions, 968 flow [2025-03-04 15:26:04,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=968, PETRI_PLACES=137, PETRI_TRANSITIONS=210} [2025-03-04 15:26:04,348 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, -18 predicate places. [2025-03-04 15:26:04,348 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 210 transitions, 968 flow [2025-03-04 15:26:04,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.363636363636363) internal successors, (147), 11 states have internal predecessors, (147), 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 15:26:04,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:04,349 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:04,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 15:26:04,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:04,551 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:04,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash 423901410, now seen corresponding path program 1 times [2025-03-04 15:26:04,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:04,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430387658] [2025-03-04 15:26:04,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:04,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:04,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 15:26:04,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 15:26:04,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:04,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-04 15:26:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:04,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430387658] [2025-03-04 15:26:04,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430387658] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:04,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691907960] [2025-03-04 15:26:04,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:04,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:04,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:04,930 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 15:26:04,932 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 15:26:05,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 15:26:05,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 15:26:05,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:05,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:05,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 15:26:05,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:05,408 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-04 15:26:05,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-04 15:26:05,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691907960] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:05,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:05,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2025-03-04 15:26:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132220592] [2025-03-04 15:26:05,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:05,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 15:26:05,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:05,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 15:26:05,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-03-04 15:26:05,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:26:05,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 210 transitions, 968 flow. Second operand has 23 states, 23 states have (on average 13.173913043478262) internal successors, (303), 23 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:26:05,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:05,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:26:05,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:08,282 INFO L124 PetriNetUnfolderBase]: 6344/9954 cut-off events. [2025-03-04 15:26:08,282 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2025-03-04 15:26:08,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20169 conditions, 9954 events. 6344/9954 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 60612 event pairs, 5000 based on Foata normal form. 2/5774 useless extension candidates. Maximal degree in co-relation 19687. Up to 9835 conditions per place. [2025-03-04 15:26:08,307 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 84 changer transitions 0/202 dead transitions. [2025-03-04 15:26:08,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 202 transitions, 1305 flow [2025-03-04 15:26:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-04 15:26:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-03-04 15:26:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 481 transitions. [2025-03-04 15:26:08,310 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.10748603351955308 [2025-03-04 15:26:08,310 INFO L175 Difference]: Start difference. First operand has 137 places, 210 transitions, 968 flow. Second operand 25 states and 481 transitions. [2025-03-04 15:26:08,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 202 transitions, 1305 flow [2025-03-04 15:26:08,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 202 transitions, 1269 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:26:08,314 INFO L231 Difference]: Finished difference. Result has 160 places, 202 transitions, 1115 flow [2025-03-04 15:26:08,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1115, PETRI_PLACES=160, PETRI_TRANSITIONS=202} [2025-03-04 15:26:08,315 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 5 predicate places. [2025-03-04 15:26:08,315 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 202 transitions, 1115 flow [2025-03-04 15:26:08,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.173913043478262) internal successors, (303), 23 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:26:08,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:08,315 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:08,324 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 15:26:08,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:08,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:08,517 INFO L85 PathProgramCache]: Analyzing trace with hash -143054590, now seen corresponding path program 2 times [2025-03-04 15:26:08,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:08,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517343142] [2025-03-04 15:26:08,517 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:26:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:08,548 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 122 statements into 2 equivalence classes. [2025-03-04 15:26:08,613 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 15:26:08,615 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:26:08,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-04 15:26:09,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:09,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517343142] [2025-03-04 15:26:09,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517343142] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:09,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422721210] [2025-03-04 15:26:09,007 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:26:09,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:09,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:09,011 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 15:26:09,012 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 15:26:09,387 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 122 statements into 2 equivalence classes. [2025-03-04 15:26:09,447 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 15:26:09,447 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:26:09,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:09,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 15:26:09,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-04 15:26:09,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2025-03-04 15:26:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422721210] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:09,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:09,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2025-03-04 15:26:09,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409041584] [2025-03-04 15:26:09,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:09,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-04 15:26:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:09,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-04 15:26:09,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2025-03-04 15:26:09,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:26:09,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 202 transitions, 1115 flow. Second operand has 35 states, 35 states have (on average 12.771428571428572) internal successors, (447), 35 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 15:26:09,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:09,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:26:09,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:12,061 INFO L124 PetriNetUnfolderBase]: 6344/9990 cut-off events. [2025-03-04 15:26:12,061 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2025-03-04 15:26:12,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20450 conditions, 9990 events. 6344/9990 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 60649 event pairs, 5000 based on Foata normal form. 12/5827 useless extension candidates. Maximal degree in co-relation 19688. Up to 9835 conditions per place. [2025-03-04 15:26:12,092 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 108 changer transitions 0/226 dead transitions. [2025-03-04 15:26:12,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 226 transitions, 1839 flow [2025-03-04 15:26:12,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-04 15:26:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-04 15:26:12,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 479 transitions. [2025-03-04 15:26:12,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.11634685450570804 [2025-03-04 15:26:12,095 INFO L175 Difference]: Start difference. First operand has 160 places, 202 transitions, 1115 flow. Second operand 23 states and 479 transitions. [2025-03-04 15:26:12,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 226 transitions, 1839 flow [2025-03-04 15:26:12,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 226 transitions, 1727 flow, removed 0 selfloop flow, removed 14 redundant places. [2025-03-04 15:26:12,101 INFO L231 Difference]: Finished difference. Result has 174 places, 226 transitions, 1611 flow [2025-03-04 15:26:12,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1003, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1611, PETRI_PLACES=174, PETRI_TRANSITIONS=226} [2025-03-04 15:26:12,103 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 19 predicate places. [2025-03-04 15:26:12,103 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 226 transitions, 1611 flow [2025-03-04 15:26:12,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 12.771428571428572) internal successors, (447), 35 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 15:26:12,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:12,103 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:12,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 15:26:12,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:12,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:12,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2102767294, now seen corresponding path program 3 times [2025-03-04 15:26:12,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:12,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902409974] [2025-03-04 15:26:12,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:26:12,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:12,334 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 12 equivalence classes. [2025-03-04 15:26:12,652 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 15:26:12,652 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-03-04 15:26:12,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2025-03-04 15:26:13,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:13,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902409974] [2025-03-04 15:26:13,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902409974] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:13,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161657979] [2025-03-04 15:26:13,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:26:13,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:13,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:13,367 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 15:26:13,369 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 15:26:13,763 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 12 equivalence classes. [2025-03-04 15:26:22,444 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) and asserted 158 of 158 statements. [2025-03-04 15:26:22,444 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2025-03-04 15:26:22,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:22,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-04 15:26:22,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2025-03-04 15:26:22,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:23,029 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2025-03-04 15:26:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161657979] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:23,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:23,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2025-03-04 15:26:23,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743952918] [2025-03-04 15:26:23,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-03-04 15:26:23,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:23,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-03-04 15:26:23,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=550, Invalid=1900, Unknown=0, NotChecked=0, Total=2450 [2025-03-04 15:26:23,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2025-03-04 15:26:23,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 226 transitions, 1611 flow. Second operand has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 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 15:26:23,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:23,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2025-03-04 15:26:23,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:25,745 INFO L124 PetriNetUnfolderBase]: 6344/10002 cut-off events. [2025-03-04 15:26:25,745 INFO L125 PetriNetUnfolderBase]: For 1105/1105 co-relation queries the response was YES. [2025-03-04 15:26:25,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20631 conditions, 10002 events. 6344/10002 cut-off events. For 1105/1105 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 60649 event pairs, 5000 based on Foata normal form. 4/5831 useless extension candidates. Maximal degree in co-relation 19694. Up to 9835 conditions per place. [2025-03-04 15:26:25,774 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 116 changer transitions 0/234 dead transitions. [2025-03-04 15:26:25,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 234 transitions, 2183 flow [2025-03-04 15:26:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-04 15:26:25,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-03-04 15:26:25,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 611 transitions. [2025-03-04 15:26:25,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.09752593774940144 [2025-03-04 15:26:25,777 INFO L175 Difference]: Start difference. First operand has 174 places, 226 transitions, 1611 flow. Second operand 35 states and 611 transitions. [2025-03-04 15:26:25,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 234 transitions, 2183 flow [2025-03-04 15:26:25,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 234 transitions, 2131 flow, removed 10 selfloop flow, removed 8 redundant places. [2025-03-04 15:26:25,783 INFO L231 Difference]: Finished difference. Result has 202 places, 234 transitions, 1951 flow [2025-03-04 15:26:25,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1559, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1951, PETRI_PLACES=202, PETRI_TRANSITIONS=234} [2025-03-04 15:26:25,784 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 47 predicate places. [2025-03-04 15:26:25,784 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 234 transitions, 1951 flow [2025-03-04 15:26:25,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 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 15:26:25,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:25,786 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:25,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 15:26:25,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:25,986 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:25,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:25,987 INFO L85 PathProgramCache]: Analyzing trace with hash -2002250750, now seen corresponding path program 4 times [2025-03-04 15:26:25,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:25,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906841704] [2025-03-04 15:26:25,987 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 15:26:25,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:26,016 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 170 statements into 2 equivalence classes. [2025-03-04 15:26:26,134 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 15:26:26,134 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 15:26:26,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:29,779 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 9 proven. 175 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2025-03-04 15:26:29,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:29,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906841704] [2025-03-04 15:26:29,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906841704] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:29,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663930821] [2025-03-04 15:26:29,780 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 15:26:29,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:29,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:29,786 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:26:29,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 15:26:30,190 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 170 statements into 2 equivalence classes. [2025-03-04 15:26:30,284 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 15:26:30,284 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 15:26:30,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:30,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 93 conjuncts are in the unsatisfiable core [2025-03-04 15:26:30,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:30,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 15:26:30,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-03-04 15:26:30,577 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-03-04 15:26:30,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-03-04 15:26:30,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,735 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-03-04 15:26:30,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-03-04 15:26:30,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,818 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-03-04 15:26:30,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-03-04 15:26:30,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,902 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-03-04 15:26:30,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-03-04 15:26:30,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:30,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,142 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-03-04 15:26:31,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-03-04 15:26:31,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,662 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2025-03-04 15:26:31,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2025-03-04 15:26:31,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-03-04 15:26:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2025-03-04 15:26:31,855 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:26:33,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 15:26:33,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2025-03-04 15:26:33,234 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-04 15:26:33,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 619 treesize of output 595 [2025-03-04 15:26:33,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2025-03-04 15:26:33,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 55 [2025-03-04 15:26:33,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 54 [2025-03-04 15:26:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2025-03-04 15:26:34,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663930821] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:26:34,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:26:34,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 18, 20] total 61 [2025-03-04 15:26:34,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442637389] [2025-03-04 15:26:34,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:26:34,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2025-03-04 15:26:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:26:34,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2025-03-04 15:26:34,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=3519, Unknown=21, NotChecked=0, Total=3782 [2025-03-04 15:26:36,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 179 [2025-03-04 15:26:36,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 234 transitions, 1951 flow. Second operand has 62 states, 62 states have (on average 6.419354838709677) internal successors, (398), 62 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:26:36,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:26:36,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 179 [2025-03-04 15:26:36,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:26:44,260 INFO L124 PetriNetUnfolderBase]: 5806/9142 cut-off events. [2025-03-04 15:26:44,260 INFO L125 PetriNetUnfolderBase]: For 1102/1102 co-relation queries the response was YES. [2025-03-04 15:26:44,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19119 conditions, 9142 events. 5806/9142 cut-off events. For 1102/1102 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 54105 event pairs, 4522 based on Foata normal form. 0/5485 useless extension candidates. Maximal degree in co-relation 17958. Up to 8954 conditions per place. [2025-03-04 15:26:44,288 INFO L140 encePairwiseOnDemand]: 150/179 looper letters, 173 selfloop transitions, 99 changer transitions 0/272 dead transitions. [2025-03-04 15:26:44,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 272 transitions, 2677 flow [2025-03-04 15:26:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-04 15:26:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-03-04 15:26:44,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 387 transitions. [2025-03-04 15:26:44,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.046000237727326754 [2025-03-04 15:26:44,292 INFO L175 Difference]: Start difference. First operand has 202 places, 234 transitions, 1951 flow. Second operand 47 states and 387 transitions. [2025-03-04 15:26:44,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 272 transitions, 2677 flow [2025-03-04 15:26:44,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 272 transitions, 2310 flow, removed 26 selfloop flow, removed 29 redundant places. [2025-03-04 15:26:44,300 INFO L231 Difference]: Finished difference. Result has 215 places, 238 transitions, 1896 flow [2025-03-04 15:26:44,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1591, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1896, PETRI_PLACES=215, PETRI_TRANSITIONS=238} [2025-03-04 15:26:44,301 INFO L279 CegarLoopForPetriNet]: 155 programPoint places, 60 predicate places. [2025-03-04 15:26:44,301 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 238 transitions, 1896 flow [2025-03-04 15:26:44,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 6.419354838709677) internal successors, (398), 62 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:26:44,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:26:44,302 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:26:44,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 15:26:44,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-04 15:26:44,503 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2025-03-04 15:26:44,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:26:44,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2002250748, now seen corresponding path program 1 times [2025-03-04 15:26:44,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:26:44,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909369774] [2025-03-04 15:26:44,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:26:44,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-04 15:26:44,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 15:26:44,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:44,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2025-03-04 15:26:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:26:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909369774] [2025-03-04 15:26:47,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909369774] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:26:47,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151614458] [2025-03-04 15:26:47,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:26:47,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:26:47,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:26:47,052 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:26:47,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 15:26:47,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-04 15:26:47,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 15:26:47,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:26:47,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:26:47,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 157 conjuncts are in the unsatisfiable core [2025-03-04 15:26:47,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:26:47,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-03-04 15:26:47,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-04 15:26:47,652 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2025-03-04 15:26:47,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2025-03-04 15:26:47,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,842 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-03-04 15:26:47,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-03-04 15:26:47,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:47,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,021 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2025-03-04 15:26:48,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2025-03-04 15:26:48,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,205 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2025-03-04 15:26:48,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2025-03-04 15:26:48,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,438 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2025-03-04 15:26:48,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2025-03-04 15:26:48,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,775 INFO L349 Elim1Store]: treesize reduction 80, result has 31.6 percent of original size [2025-03-04 15:26:48,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 52 [2025-03-04 15:26:48,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:48,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:49,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,142 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2025-03-04 15:26:50,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2025-03-04 15:26:50,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-03-04 15:26:50,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-03-04 15:26:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:50,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:50,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:50,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:51,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:51,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-04 15:26:51,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 25 [2025-03-04 15:26:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 84 proven. 288 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2025-03-04 15:26:51,241 INFO L312 TraceCheckSpWp]: Computing backward predicates...