./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/popl20-bad-dot-product-alt.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 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:43:57,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:43:57,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:43:57,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:43:57,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:43:57,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:43:57,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:43:57,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:43:57,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:43:57,412 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:43:57,412 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:43:57,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:43:57,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:43:57,413 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:43:57,414 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:43:57,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:43:57,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:43:57,414 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 -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 [2025-03-17 19:43:57,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:43:57,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:43:57,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:43:57,637 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:43:57,637 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:43:57,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-17 19:43:58,763 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e9100cc/0768648aa6ec4f47b608acece25ad3f9/FLAG27ca4f7a7 [2025-03-17 19:43:58,977 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:43:58,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2025-03-17 19:43:58,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e9100cc/0768648aa6ec4f47b608acece25ad3f9/FLAG27ca4f7a7 [2025-03-17 19:43:59,328 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39e9100cc/0768648aa6ec4f47b608acece25ad3f9 [2025-03-17 19:43:59,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:43:59,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:43:59,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:43:59,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:43:59,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:43:59,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df3a61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59, skipping insertion in model container [2025-03-17 19:43:59,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:43:59,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:43:59,471 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:43:59,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:43:59,503 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:43:59,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59 WrapperNode [2025-03-17 19:43:59,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:43:59,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:43:59,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:43:59,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:43:59,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,536 INFO L138 Inliner]: procedures = 27, calls = 60, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 397 [2025-03-17 19:43:59,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:43:59,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:43:59,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:43:59,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:43:59,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,581 INFO L175 MemorySlicer]: Split 30 memory accesses to 3 slices as follows [2, 4, 24]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 1, 3]. [2025-03-17 19:43:59,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,604 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:43:59,615 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:43:59,615 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:43:59,615 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:43:59,616 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (1/1) ... [2025-03-17 19:43:59,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:43:59,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:43:59,650 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) [2025-03-17 19:43:59,653 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 [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:43:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 19:43:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:43:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:43:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 19:43:59,674 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:43:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 19:43:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 19:43:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:43:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:43:59,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:43:59,676 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:43:59,796 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:43:59,797 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:44:00,314 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:44:00,315 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:44:00,786 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:44:00,786 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:44:00,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:44:00 BoogieIcfgContainer [2025-03-17 19:44:00,787 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:44:00,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:44:00,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:44:00,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:44:00,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:43:59" (1/3) ... [2025-03-17 19:44:00,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1652a37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:44:00, skipping insertion in model container [2025-03-17 19:44:00,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:59" (2/3) ... [2025-03-17 19:44:00,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1652a37c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:44:00, skipping insertion in model container [2025-03-17 19:44:00,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:44:00" (3/3) ... [2025-03-17 19:44:00,795 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2025-03-17 19:44:00,810 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:44:00,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-dot-product-alt.wvr.c that has 4 procedures, 77 locations, 1 initial locations, 7 loop locations, and 32 error locations. [2025-03-17 19:44:00,812 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:44:00,945 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:44:00,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 187 flow [2025-03-17 19:44:01,020 INFO L124 PetriNetUnfolderBase]: 7/80 cut-off events. [2025-03-17 19:44:01,022 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:44:01,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 80 events. 7/80 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 286 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2025-03-17 19:44:01,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 187 flow [2025-03-17 19:44:01,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 78 transitions, 171 flow [2025-03-17 19:44:01,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:44:01,053 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;@2b6c34ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:44:01,053 INFO L334 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2025-03-17 19:44:01,058 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:44:01,058 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-17 19:44:01,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:44:01,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:01,059 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:44:01,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:01,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:01,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1160247, now seen corresponding path program 1 times [2025-03-17 19:44:01,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:01,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395581036] [2025-03-17 19:44:01,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:01,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:01,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:44:01,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:44:01,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:01,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:01,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:01,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395581036] [2025-03-17 19:44:01,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395581036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:01,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:01,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:44:01,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201976244] [2025-03-17 19:44:01,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:01,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:01,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:01,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:01,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:01,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2025-03-17 19:44:01,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-03-17 19:44:01,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:01,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2025-03-17 19:44:01,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:02,410 INFO L124 PetriNetUnfolderBase]: 4166/6704 cut-off events. [2025-03-17 19:44:02,411 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2025-03-17 19:44:02,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12896 conditions, 6704 events. 4166/6704 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 41571 event pairs, 3616 based on Foata normal form. 3/3708 useless extension candidates. Maximal degree in co-relation 12210. Up to 5909 conditions per place. [2025-03-17 19:44:02,452 INFO L140 encePairwiseOnDemand]: 60/83 looper letters, 52 selfloop transitions, 11 changer transitions 0/81 dead transitions. [2025-03-17 19:44:02,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 81 transitions, 303 flow [2025-03-17 19:44:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:44:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:44:02,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2025-03-17 19:44:02,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4789156626506024 [2025-03-17 19:44:02,464 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 171 flow. Second operand 4 states and 159 transitions. [2025-03-17 19:44:02,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 81 transitions, 303 flow [2025-03-17 19:44:02,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 81 transitions, 294 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 19:44:02,473 INFO L231 Difference]: Finished difference. Result has 76 places, 81 transitions, 242 flow [2025-03-17 19:44:02,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=76, PETRI_TRANSITIONS=81} [2025-03-17 19:44:02,478 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2025-03-17 19:44:02,479 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 81 transitions, 242 flow [2025-03-17 19:44:02,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2025-03-17 19:44:02,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:02,480 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 19:44:02,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:44:02,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:02,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash 206274908, now seen corresponding path program 1 times [2025-03-17 19:44:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:02,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025261468] [2025-03-17 19:44:02,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:02,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:02,492 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:44:02,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:44:02,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:02,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:02,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025261468] [2025-03-17 19:44:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025261468] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368242841] [2025-03-17 19:44:02,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:02,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:02,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:02,624 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) [2025-03-17 19:44:02,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:44:02,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:44:02,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:44:02,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:02,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:02,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:44:02,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:02,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:44:02,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368242841] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:02,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:44:02,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:44:02,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462648133] [2025-03-17 19:44:02,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:02,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:44:02,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:02,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:44:02,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:44:02,788 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2025-03-17 19:44:02,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 81 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2025-03-17 19:44:02,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:02,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2025-03-17 19:44:02,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:03,745 INFO L124 PetriNetUnfolderBase]: 4166/6701 cut-off events. [2025-03-17 19:44:03,746 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2025-03-17 19:44:03,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12824 conditions, 6701 events. 4166/6701 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 41617 event pairs, 3616 based on Foata normal form. 3/3710 useless extension candidates. Maximal degree in co-relation 12752. Up to 5894 conditions per place. [2025-03-17 19:44:03,784 INFO L140 encePairwiseOnDemand]: 69/83 looper letters, 41 selfloop transitions, 19 changer transitions 0/78 dead transitions. [2025-03-17 19:44:03,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 350 flow [2025-03-17 19:44:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:44:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:44:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2025-03-17 19:44:03,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3795180722891566 [2025-03-17 19:44:03,788 INFO L175 Difference]: Start difference. First operand has 76 places, 81 transitions, 242 flow. Second operand 6 states and 189 transitions. [2025-03-17 19:44:03,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 350 flow [2025-03-17 19:44:03,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 78 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:44:03,790 INFO L231 Difference]: Finished difference. Result has 78 places, 78 transitions, 268 flow [2025-03-17 19:44:03,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=78, PETRI_TRANSITIONS=78} [2025-03-17 19:44:03,791 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -3 predicate places. [2025-03-17 19:44:03,791 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 268 flow [2025-03-17 19:44:03,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2025-03-17 19:44:03,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:03,791 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:44:03,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:44:03,995 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 [2025-03-17 19:44:03,995 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:03,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:03,996 INFO L85 PathProgramCache]: Analyzing trace with hash 208058994, now seen corresponding path program 1 times [2025-03-17 19:44:03,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:03,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503429843] [2025-03-17 19:44:03,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:03,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:04,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:44:04,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:44:04,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:04,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:04,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:04,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:04,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503429843] [2025-03-17 19:44:04,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503429843] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:04,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:04,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:44:04,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770792282] [2025-03-17 19:44:04,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:04,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:04,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:04,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:04,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 83 [2025-03-17 19:44:04,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2025-03-17 19:44:04,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:04,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 83 [2025-03-17 19:44:04,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:04,854 INFO L124 PetriNetUnfolderBase]: 4169/6714 cut-off events. [2025-03-17 19:44:04,854 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-03-17 19:44:04,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12884 conditions, 6714 events. 4169/6714 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 41767 event pairs, 3616 based on Foata normal form. 1/3723 useless extension candidates. Maximal degree in co-relation 12773. Up to 5912 conditions per place. [2025-03-17 19:44:04,886 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 62 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2025-03-17 19:44:04,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 87 transitions, 458 flow [2025-03-17 19:44:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:44:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:44:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2025-03-17 19:44:04,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4759036144578313 [2025-03-17 19:44:04,889 INFO L175 Difference]: Start difference. First operand has 78 places, 78 transitions, 268 flow. Second operand 4 states and 158 transitions. [2025-03-17 19:44:04,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 87 transitions, 458 flow [2025-03-17 19:44:04,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 87 transitions, 394 flow, removed 7 selfloop flow, removed 5 redundant places. [2025-03-17 19:44:04,893 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 265 flow [2025-03-17 19:44:04,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=265, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2025-03-17 19:44:04,894 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, -3 predicate places. [2025-03-17 19:44:04,894 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 265 flow [2025-03-17 19:44:04,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2025-03-17 19:44:04,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:04,895 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:44:04,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:44:04,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:04,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2099555954, now seen corresponding path program 1 times [2025-03-17 19:44:04,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:04,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775133105] [2025-03-17 19:44:04,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:04,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:04,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:44:04,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:44:04,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:04,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:04,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:04,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775133105] [2025-03-17 19:44:04,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775133105] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:04,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600220304] [2025-03-17 19:44:04,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:04,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:04,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:04,992 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) [2025-03-17 19:44:04,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:44:05,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:44:05,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:44:05,081 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:05,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:05,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:44:05,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:05,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:44:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:05,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600220304] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:44:05,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:44:05,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 19:44:05,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994779242] [2025-03-17 19:44:05,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:44:05,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 19:44:05,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:05,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 19:44:05,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:44:05,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2025-03-17 19:44:05,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 265 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 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) [2025-03-17 19:44:05,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:05,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2025-03-17 19:44:05,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:05,994 INFO L124 PetriNetUnfolderBase]: 4181/6762 cut-off events. [2025-03-17 19:44:05,995 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2025-03-17 19:44:06,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13005 conditions, 6762 events. 4181/6762 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 42340 event pairs, 3616 based on Foata normal form. 12/3782 useless extension candidates. Maximal degree in co-relation 12901. Up to 5923 conditions per place. [2025-03-17 19:44:06,022 INFO L140 encePairwiseOnDemand]: 69/83 looper letters, 52 selfloop transitions, 42 changer transitions 0/112 dead transitions. [2025-03-17 19:44:06,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 112 transitions, 612 flow [2025-03-17 19:44:06,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:44:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:44:06,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 306 transitions. [2025-03-17 19:44:06,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3686746987951807 [2025-03-17 19:44:06,024 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 265 flow. Second operand 10 states and 306 transitions. [2025-03-17 19:44:06,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 112 transitions, 612 flow [2025-03-17 19:44:06,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 112 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:44:06,026 INFO L231 Difference]: Finished difference. Result has 89 places, 112 transitions, 555 flow [2025-03-17 19:44:06,028 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=555, PETRI_PLACES=89, PETRI_TRANSITIONS=112} [2025-03-17 19:44:06,029 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 8 predicate places. [2025-03-17 19:44:06,029 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 112 transitions, 555 flow [2025-03-17 19:44:06,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 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) [2025-03-17 19:44:06,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:06,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:06,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 19:44:06,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 19:44:06,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:06,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:06,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1917852600, now seen corresponding path program 1 times [2025-03-17 19:44:06,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:06,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715436626] [2025-03-17 19:44:06,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:06,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:06,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:44:06,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:44:06,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:06,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:06,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:06,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715436626] [2025-03-17 19:44:06,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715436626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:06,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:06,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:44:06,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430484366] [2025-03-17 19:44:06,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:06,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:06,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:06,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:06,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2025-03-17 19:44:06,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 112 transitions, 555 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2025-03-17 19:44:06,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:06,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2025-03-17 19:44:06,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:06,984 INFO L124 PetriNetUnfolderBase]: 4196/6833 cut-off events. [2025-03-17 19:44:06,985 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2025-03-17 19:44:06,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13349 conditions, 6833 events. 4196/6833 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 42724 event pairs, 3616 based on Foata normal form. 2/3846 useless extension candidates. Maximal degree in co-relation 13127. Up to 5946 conditions per place. [2025-03-17 19:44:07,009 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 114 selfloop transitions, 15 changer transitions 0/150 dead transitions. [2025-03-17 19:44:07,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 150 transitions, 1099 flow [2025-03-17 19:44:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:44:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:44:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2025-03-17 19:44:07,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.491566265060241 [2025-03-17 19:44:07,011 INFO L175 Difference]: Start difference. First operand has 89 places, 112 transitions, 555 flow. Second operand 5 states and 204 transitions. [2025-03-17 19:44:07,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 150 transitions, 1099 flow [2025-03-17 19:44:07,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 150 transitions, 1041 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-03-17 19:44:07,017 INFO L231 Difference]: Finished difference. Result has 93 places, 118 transitions, 617 flow [2025-03-17 19:44:07,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=617, PETRI_PLACES=93, PETRI_TRANSITIONS=118} [2025-03-17 19:44:07,018 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2025-03-17 19:44:07,019 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 118 transitions, 617 flow [2025-03-17 19:44:07,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2025-03-17 19:44:07,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:07,019 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:07,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:44:07,019 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:07,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1363246023, now seen corresponding path program 1 times [2025-03-17 19:44:07,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:07,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516836817] [2025-03-17 19:44:07,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:07,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:07,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:44:07,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:44:07,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:07,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:07,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:07,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516836817] [2025-03-17 19:44:07,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516836817] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349744598] [2025-03-17 19:44:07,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:07,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:07,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:07,135 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) [2025-03-17 19:44:07,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:44:07,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:44:07,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:44:07,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:07,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:07,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:44:07,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:07,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:44:07,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349744598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:07,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:44:07,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-17 19:44:07,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60335455] [2025-03-17 19:44:07,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:07,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:44:07,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:07,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:44:07,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:44:07,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 83 [2025-03-17 19:44:07,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 118 transitions, 617 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2025-03-17 19:44:07,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:07,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 83 [2025-03-17 19:44:07,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:08,125 INFO L124 PetriNetUnfolderBase]: 4196/6831 cut-off events. [2025-03-17 19:44:08,125 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2025-03-17 19:44:08,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13346 conditions, 6831 events. 4196/6831 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 42686 event pairs, 3616 based on Foata normal form. 2/3843 useless extension candidates. Maximal degree in co-relation 13128. Up to 5926 conditions per place. [2025-03-17 19:44:08,159 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 89 selfloop transitions, 22 changer transitions 0/130 dead transitions. [2025-03-17 19:44:08,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 130 transitions, 932 flow [2025-03-17 19:44:08,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:44:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:44:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2025-03-17 19:44:08,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41365461847389556 [2025-03-17 19:44:08,162 INFO L175 Difference]: Start difference. First operand has 93 places, 118 transitions, 617 flow. Second operand 6 states and 206 transitions. [2025-03-17 19:44:08,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 130 transitions, 932 flow [2025-03-17 19:44:08,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 130 transitions, 930 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 19:44:08,168 INFO L231 Difference]: Finished difference. Result has 97 places, 117 transitions, 655 flow [2025-03-17 19:44:08,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=655, PETRI_PLACES=97, PETRI_TRANSITIONS=117} [2025-03-17 19:44:08,169 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 16 predicate places. [2025-03-17 19:44:08,169 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 117 transitions, 655 flow [2025-03-17 19:44:08,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2025-03-17 19:44:08,169 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:08,169 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 19:44:08,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 19:44:08,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:08,375 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:08,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash 689047332, now seen corresponding path program 1 times [2025-03-17 19:44:08,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:08,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277496209] [2025-03-17 19:44:08,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:08,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:08,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:44:08,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:44:08,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:08,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:08,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277496209] [2025-03-17 19:44:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277496209] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:08,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954089971] [2025-03-17 19:44:08,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:08,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:08,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:08,481 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) [2025-03-17 19:44:08,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 19:44:08,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:44:08,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:44:08,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:08,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:08,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:44:08,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:08,611 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:44:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:08,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954089971] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:44:08,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:44:08,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 19:44:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89405382] [2025-03-17 19:44:08,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:44:08,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 19:44:08,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:08,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 19:44:08,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:44:08,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 83 [2025-03-17 19:44:08,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 655 flow. Second operand has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 states have internal predecessors, (320), 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) [2025-03-17 19:44:08,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:08,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 83 [2025-03-17 19:44:08,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:09,380 INFO L124 PetriNetUnfolderBase]: 4229/6978 cut-off events. [2025-03-17 19:44:09,381 INFO L125 PetriNetUnfolderBase]: For 608/608 co-relation queries the response was YES. [2025-03-17 19:44:09,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13952 conditions, 6978 events. 4229/6978 cut-off events. For 608/608 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 44073 event pairs, 3616 based on Foata normal form. 6/3996 useless extension candidates. Maximal degree in co-relation 13547. Up to 5967 conditions per place. [2025-03-17 19:44:09,420 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 136 selfloop transitions, 38 changer transitions 0/193 dead transitions. [2025-03-17 19:44:09,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 193 transitions, 1613 flow [2025-03-17 19:44:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:44:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:44:09,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2025-03-17 19:44:09,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3927710843373494 [2025-03-17 19:44:09,422 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 655 flow. Second operand 10 states and 326 transitions. [2025-03-17 19:44:09,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 193 transitions, 1613 flow [2025-03-17 19:44:09,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 193 transitions, 1473 flow, removed 28 selfloop flow, removed 5 redundant places. [2025-03-17 19:44:09,428 INFO L231 Difference]: Finished difference. Result has 104 places, 141 transitions, 872 flow [2025-03-17 19:44:09,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=872, PETRI_PLACES=104, PETRI_TRANSITIONS=141} [2025-03-17 19:44:09,430 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2025-03-17 19:44:09,432 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 141 transitions, 872 flow [2025-03-17 19:44:09,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 states have internal predecessors, (320), 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) [2025-03-17 19:44:09,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:09,432 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:09,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 19:44:09,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:09,633 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:09,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1986165907, now seen corresponding path program 1 times [2025-03-17 19:44:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:09,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330554046] [2025-03-17 19:44:09,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:09,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:09,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 19:44:09,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 19:44:09,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:09,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:44:09,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330554046] [2025-03-17 19:44:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330554046] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:44:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504583606] [2025-03-17 19:44:09,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:09,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:09,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:09,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:09,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:09,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2025-03-17 19:44:09,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 141 transitions, 872 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-17 19:44:09,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:09,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2025-03-17 19:44:09,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:10,526 INFO L124 PetriNetUnfolderBase]: 4352/7192 cut-off events. [2025-03-17 19:44:10,526 INFO L125 PetriNetUnfolderBase]: For 639/639 co-relation queries the response was YES. [2025-03-17 19:44:10,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14394 conditions, 7192 events. 4352/7192 cut-off events. For 639/639 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 45180 event pairs, 3740 based on Foata normal form. 0/4204 useless extension candidates. Maximal degree in co-relation 14113. Up to 6030 conditions per place. [2025-03-17 19:44:10,557 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 125 selfloop transitions, 8 changer transitions 15/168 dead transitions. [2025-03-17 19:44:10,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 168 transitions, 1295 flow [2025-03-17 19:44:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:44:10,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:44:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 179 transitions. [2025-03-17 19:44:10,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5391566265060241 [2025-03-17 19:44:10,559 INFO L175 Difference]: Start difference. First operand has 104 places, 141 transitions, 872 flow. Second operand 4 states and 179 transitions. [2025-03-17 19:44:10,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 168 transitions, 1295 flow [2025-03-17 19:44:10,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 168 transitions, 1269 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-17 19:44:10,565 INFO L231 Difference]: Finished difference. Result has 106 places, 140 transitions, 869 flow [2025-03-17 19:44:10,565 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=869, PETRI_PLACES=106, PETRI_TRANSITIONS=140} [2025-03-17 19:44:10,566 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2025-03-17 19:44:10,566 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 140 transitions, 869 flow [2025-03-17 19:44:10,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-17 19:44:10,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:10,566 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-17 19:44:10,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:44:10,566 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:10,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1459999543, now seen corresponding path program 2 times [2025-03-17 19:44:10,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:10,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185652639] [2025-03-17 19:44:10,567 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:44:10,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:10,577 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:44:10,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:44:10,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:44:10,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:44:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185652639] [2025-03-17 19:44:10,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185652639] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931274336] [2025-03-17 19:44:10,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:44:10,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:10,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:10,609 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) [2025-03-17 19:44:10,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 19:44:10,686 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:44:10,693 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:44:10,693 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:44:10,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:10,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:44:10,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:44:10,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:44:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:44:10,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931274336] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:44:10,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:44:10,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-03-17 19:44:10,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105583631] [2025-03-17 19:44:10,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:44:10,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:10,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:10,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:10,751 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2025-03-17 19:44:10,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 140 transitions, 869 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2025-03-17 19:44:10,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:10,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2025-03-17 19:44:10,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:11,381 INFO L124 PetriNetUnfolderBase]: 4228/6976 cut-off events. [2025-03-17 19:44:11,381 INFO L125 PetriNetUnfolderBase]: For 996/996 co-relation queries the response was YES. [2025-03-17 19:44:11,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14489 conditions, 6976 events. 4228/6976 cut-off events. For 996/996 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 43803 event pairs, 3616 based on Foata normal form. 1/4532 useless extension candidates. Maximal degree in co-relation 14206. Up to 6109 conditions per place. [2025-03-17 19:44:11,418 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 106 selfloop transitions, 16 changer transitions 0/139 dead transitions. [2025-03-17 19:44:11,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 139 transitions, 1103 flow [2025-03-17 19:44:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:44:11,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:44:11,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-17 19:44:11,419 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4066265060240964 [2025-03-17 19:44:11,419 INFO L175 Difference]: Start difference. First operand has 106 places, 140 transitions, 869 flow. Second operand 4 states and 135 transitions. [2025-03-17 19:44:11,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 139 transitions, 1103 flow [2025-03-17 19:44:11,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 139 transitions, 1087 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:44:11,424 INFO L231 Difference]: Finished difference. Result has 105 places, 139 transitions, 875 flow [2025-03-17 19:44:11,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=875, PETRI_PLACES=105, PETRI_TRANSITIONS=139} [2025-03-17 19:44:11,425 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2025-03-17 19:44:11,425 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 139 transitions, 875 flow [2025-03-17 19:44:11,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2025-03-17 19:44:11,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:11,425 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-03-17 19:44:11,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 19:44:11,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:11,626 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:11,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:11,626 INFO L85 PathProgramCache]: Analyzing trace with hash 16996918, now seen corresponding path program 1 times [2025-03-17 19:44:11,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:11,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813796544] [2025-03-17 19:44:11,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:11,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:11,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:44:11,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:44:11,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:11,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-17 19:44:11,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813796544] [2025-03-17 19:44:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813796544] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:11,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:11,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:44:11,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127607479] [2025-03-17 19:44:11,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:11,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:11,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:11,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:11,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:11,725 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2025-03-17 19:44:11,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 139 transitions, 875 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2025-03-17 19:44:11,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:11,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2025-03-17 19:44:11,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:12,522 INFO L124 PetriNetUnfolderBase]: 4223/6956 cut-off events. [2025-03-17 19:44:12,522 INFO L125 PetriNetUnfolderBase]: For 910/910 co-relation queries the response was YES. [2025-03-17 19:44:12,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14404 conditions, 6956 events. 4223/6956 cut-off events. For 910/910 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 43656 event pairs, 3616 based on Foata normal form. 1/4512 useless extension candidates. Maximal degree in co-relation 14123. Up to 6086 conditions per place. [2025-03-17 19:44:12,554 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 109 selfloop transitions, 10 changer transitions 0/138 dead transitions. [2025-03-17 19:44:12,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 138 transitions, 1103 flow [2025-03-17 19:44:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:44:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:44:12,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2025-03-17 19:44:12,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4939759036144578 [2025-03-17 19:44:12,556 INFO L175 Difference]: Start difference. First operand has 105 places, 139 transitions, 875 flow. Second operand 4 states and 164 transitions. [2025-03-17 19:44:12,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 138 transitions, 1103 flow [2025-03-17 19:44:12,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 138 transitions, 1071 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:44:12,560 INFO L231 Difference]: Finished difference. Result has 106 places, 138 transitions, 857 flow [2025-03-17 19:44:12,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=857, PETRI_PLACES=106, PETRI_TRANSITIONS=138} [2025-03-17 19:44:12,560 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 25 predicate places. [2025-03-17 19:44:12,561 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 138 transitions, 857 flow [2025-03-17 19:44:12,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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) [2025-03-17 19:44:12,561 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:12,561 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:12,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:44:12,561 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:12,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:12,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1694248162, now seen corresponding path program 1 times [2025-03-17 19:44:12,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:12,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751458619] [2025-03-17 19:44:12,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:12,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:12,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:44:12,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:44:12,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:12,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 19:44:12,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:12,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751458619] [2025-03-17 19:44:12,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751458619] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:12,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:12,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:44:12,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44068725] [2025-03-17 19:44:12,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:12,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:44:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:12,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:44:12,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:44:12,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2025-03-17 19:44:12,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 138 transitions, 857 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-03-17 19:44:12,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:12,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2025-03-17 19:44:12,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:13,620 INFO L124 PetriNetUnfolderBase]: 6609/10794 cut-off events. [2025-03-17 19:44:13,620 INFO L125 PetriNetUnfolderBase]: For 1135/1135 co-relation queries the response was YES. [2025-03-17 19:44:13,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22111 conditions, 10794 events. 6609/10794 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 71643 event pairs, 2401 based on Foata normal form. 0/7071 useless extension candidates. Maximal degree in co-relation 21829. Up to 5444 conditions per place. [2025-03-17 19:44:13,665 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 147 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2025-03-17 19:44:13,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 168 transitions, 1226 flow [2025-03-17 19:44:13,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:44:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:44:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2025-03-17 19:44:13,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6465863453815262 [2025-03-17 19:44:13,666 INFO L175 Difference]: Start difference. First operand has 106 places, 138 transitions, 857 flow. Second operand 3 states and 161 transitions. [2025-03-17 19:44:13,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 168 transitions, 1226 flow [2025-03-17 19:44:13,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 168 transitions, 1208 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:44:13,672 INFO L231 Difference]: Finished difference. Result has 107 places, 139 transitions, 853 flow [2025-03-17 19:44:13,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=853, PETRI_PLACES=107, PETRI_TRANSITIONS=139} [2025-03-17 19:44:13,673 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 26 predicate places. [2025-03-17 19:44:13,673 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 139 transitions, 853 flow [2025-03-17 19:44:13,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-03-17 19:44:13,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:13,673 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:13,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:44:13,674 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:13,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:13,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1694248166, now seen corresponding path program 1 times [2025-03-17 19:44:13,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:13,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088196981] [2025-03-17 19:44:13,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:13,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:13,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-17 19:44:13,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-17 19:44:13,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:13,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:44:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088196981] [2025-03-17 19:44:13,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088196981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:44:13,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:44:13,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:44:13,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891773572] [2025-03-17 19:44:13,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:44:13,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:44:13,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:13,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:44:13,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:44:13,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 83 [2025-03-17 19:44:13,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 139 transitions, 853 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2025-03-17 19:44:13,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:13,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 83 [2025-03-17 19:44:13,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:14,965 INFO L124 PetriNetUnfolderBase]: 6776/11010 cut-off events. [2025-03-17 19:44:14,965 INFO L125 PetriNetUnfolderBase]: For 2058/2058 co-relation queries the response was YES. [2025-03-17 19:44:14,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24042 conditions, 11010 events. 6776/11010 cut-off events. For 2058/2058 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 70516 event pairs, 5917 based on Foata normal form. 75/7669 useless extension candidates. Maximal degree in co-relation 23495. Up to 9424 conditions per place. [2025-03-17 19:44:15,009 INFO L140 encePairwiseOnDemand]: 72/83 looper letters, 123 selfloop transitions, 39 changer transitions 18/199 dead transitions. [2025-03-17 19:44:15,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 199 transitions, 1653 flow [2025-03-17 19:44:15,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:44:15,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:44:15,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 218 transitions. [2025-03-17 19:44:15,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5253012048192771 [2025-03-17 19:44:15,010 INFO L175 Difference]: Start difference. First operand has 107 places, 139 transitions, 853 flow. Second operand 5 states and 218 transitions. [2025-03-17 19:44:15,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 199 transitions, 1653 flow [2025-03-17 19:44:15,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 199 transitions, 1651 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:44:15,016 INFO L231 Difference]: Finished difference. Result has 111 places, 151 transitions, 1093 flow [2025-03-17 19:44:15,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1093, PETRI_PLACES=111, PETRI_TRANSITIONS=151} [2025-03-17 19:44:15,017 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 30 predicate places. [2025-03-17 19:44:15,017 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 151 transitions, 1093 flow [2025-03-17 19:44:15,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2025-03-17 19:44:15,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:15,017 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1] [2025-03-17 19:44:15,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:44:15,017 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:15,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:15,017 INFO L85 PathProgramCache]: Analyzing trace with hash -533641446, now seen corresponding path program 1 times [2025-03-17 19:44:15,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:15,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195109569] [2025-03-17 19:44:15,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:15,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:44:15,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:44:15,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:15,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:15,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195109569] [2025-03-17 19:44:15,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195109569] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:15,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256622661] [2025-03-17 19:44:15,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:15,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:15,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:15,141 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) [2025-03-17 19:44:15,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 19:44:15,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:44:15,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:44:15,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:15,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:15,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 19:44:15,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:15,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:44:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:44:15,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256622661] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:44:15,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:44:15,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-03-17 19:44:15,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623135116] [2025-03-17 19:44:15,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:44:15,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 19:44:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:44:15,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 19:44:15,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-03-17 19:44:15,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2025-03-17 19:44:15,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 151 transitions, 1093 flow. Second operand has 24 states, 24 states have (on average 22.166666666666668) internal successors, (532), 24 states have internal predecessors, (532), 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) [2025-03-17 19:44:15,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:44:15,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2025-03-17 19:44:15,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:44:16,904 INFO L124 PetriNetUnfolderBase]: 6896/11858 cut-off events. [2025-03-17 19:44:16,904 INFO L125 PetriNetUnfolderBase]: For 6111/6111 co-relation queries the response was YES. [2025-03-17 19:44:16,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27071 conditions, 11858 events. 6896/11858 cut-off events. For 6111/6111 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 81139 event pairs, 5917 based on Foata normal form. 114/8476 useless extension candidates. Maximal degree in co-relation 26021. Up to 9805 conditions per place. [2025-03-17 19:44:16,961 INFO L140 encePairwiseOnDemand]: 70/83 looper letters, 60 selfloop transitions, 152 changer transitions 0/229 dead transitions. [2025-03-17 19:44:16,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 229 transitions, 2177 flow [2025-03-17 19:44:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 19:44:16,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-17 19:44:16,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 614 transitions. [2025-03-17 19:44:16,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3362541073384447 [2025-03-17 19:44:16,964 INFO L175 Difference]: Start difference. First operand has 111 places, 151 transitions, 1093 flow. Second operand 22 states and 614 transitions. [2025-03-17 19:44:16,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 229 transitions, 2177 flow [2025-03-17 19:44:16,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 229 transitions, 2177 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:44:16,974 INFO L231 Difference]: Finished difference. Result has 138 places, 229 transitions, 2141 flow [2025-03-17 19:44:16,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2141, PETRI_PLACES=138, PETRI_TRANSITIONS=229} [2025-03-17 19:44:16,975 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 57 predicate places. [2025-03-17 19:44:16,975 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 229 transitions, 2141 flow [2025-03-17 19:44:16,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 22.166666666666668) internal successors, (532), 24 states have internal predecessors, (532), 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) [2025-03-17 19:44:16,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:44:16,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:44:16,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 19:44:17,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:17,176 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-03-17 19:44:17,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:44:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1338144136, now seen corresponding path program 1 times [2025-03-17 19:44:17,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:44:17,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509048669] [2025-03-17 19:44:17,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:44:17,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 19:44:17,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 19:44:17,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:17,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:44:17,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:44:17,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509048669] [2025-03-17 19:44:17,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509048669] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:44:17,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892007589] [2025-03-17 19:44:17,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:44:17,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:44:17,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:44:17,981 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) [2025-03-17 19:44:17,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 19:44:18,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 19:44:18,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 19:44:18,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:44:18,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:44:18,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 41 conjuncts are in the unsatisfiable core [2025-03-17 19:44:18,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:44:18,167 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 23 treesize of output 1 [2025-03-17 19:44:18,280 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 [2025-03-17 19:44:18,288 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 [2025-03-17 19:44:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:44:18,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:44:18,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 65 [2025-03-17 19:44:18,753 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 128 treesize of output 114 [2025-03-17 19:44:18,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 114 treesize of output 110 [2025-03-17 19:44:18,769 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 190 treesize of output 162 [2025-03-17 19:44:19,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 19:44:19,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 1114 treesize of output 1345 [2025-03-17 19:44:50,902 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 20 treesize of output 8 [2025-03-17 19:44:50,931 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 20 treesize of output 8 [2025-03-17 19:44:54,205 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 20 treesize of output 8 [2025-03-17 19:44:54,289 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 20 treesize of output 8 [2025-03-17 19:44:54,309 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 20 treesize of output 8 [2025-03-17 19:44:54,332 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 20 treesize of output 8 [2025-03-17 19:44:56,079 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 20 treesize of output 8 [2025-03-17 19:44:56,096 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 20 treesize of output 8