./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/pthread-complex/safestack_relacy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 516fee84c55ddb7fa4275a43ad5a2da6ea994abf63bbbbd8ed5c82108d65f7b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 13:55:17,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 13:55:17,784 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 13:55:17,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 13:55:17,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 13:55:17,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 13:55:17,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 13:55:17,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 13:55:17,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 13:55:17,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 13:55:17,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 13:55:17,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 13:55:17,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 13:55:17,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 13:55:17,817 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 13:55:17,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 13:55:17,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 13:55:17,817 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 13:55:17,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 13:55:17,818 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 13:55:17,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 13:55:17,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 13:55:17,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 13:55:17,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 13:55:17,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 13:55:17,821 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 13:55:17,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 13:55:17,821 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 13:55:17,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 13:55:17,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 13:55:17,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 13:55:17,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 13:55:17,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 13:55:17,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 13:55:17,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:55:17,823 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 13:55:17,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 13:55:17,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 13:55:17,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 13:55:17,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 13:55:17,824 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 13:55:17,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 13:55:17,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 13:55:17,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 13:55:17,825 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516fee84c55ddb7fa4275a43ad5a2da6ea994abf63bbbbd8ed5c82108d65f7b0 [2024-11-19 13:55:18,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 13:55:18,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 13:55:18,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 13:55:18,056 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 13:55:18,056 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 13:55:18,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-19 13:55:19,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 13:55:19,649 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 13:55:19,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-19 13:55:19,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bf26ace/bdd32c870d4b4a8c945dd3d9ecc62e1b/FLAGfe8ebbbd9 [2024-11-19 13:55:19,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bf26ace/bdd32c870d4b4a8c945dd3d9ecc62e1b [2024-11-19 13:55:19,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 13:55:19,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 13:55:19,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 13:55:19,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 13:55:19,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 13:55:19,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:19" (1/1) ... [2024-11-19 13:55:19,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230d0411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:19, skipping insertion in model container [2024-11-19 13:55:19,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:55:19" (1/1) ... [2024-11-19 13:55:19,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 13:55:20,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:55:20,387 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 13:55:20,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 13:55:20,539 INFO L204 MainTranslator]: Completed translation [2024-11-19 13:55:20,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20 WrapperNode [2024-11-19 13:55:20,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 13:55:20,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 13:55:20,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 13:55:20,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 13:55:20,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,613 INFO L138 Inliner]: procedures = 458, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 189 [2024-11-19 13:55:20,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 13:55:20,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 13:55:20,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 13:55:20,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 13:55:20,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,659 INFO L175 MemorySlicer]: Split 37 memory accesses to 3 slices as follows [2, 5, 30]. 81 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 3, 8]. The 13 writes are split as follows [0, 1, 12]. [2024-11-19 13:55:20,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 13:55:20,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 13:55:20,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 13:55:20,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 13:55:20,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (1/1) ... [2024-11-19 13:55:20,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 13:55:20,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:20,727 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) [2024-11-19 13:55:20,730 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 [2024-11-19 13:55:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 13:55:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 13:55:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 13:55:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 13:55:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-19 13:55:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-19 13:55:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 13:55:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 13:55:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 13:55:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 13:55:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 13:55:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 13:55:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 13:55:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 13:55:20,770 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 13:55:20,956 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 13:55:20,957 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 13:55:21,169 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 13:55:21,170 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 13:55:21,411 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 13:55:21,411 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-19 13:55:21,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:21 BoogieIcfgContainer [2024-11-19 13:55:21,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 13:55:21,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 13:55:21,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 13:55:21,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 13:55:21,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:55:19" (1/3) ... [2024-11-19 13:55:21,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eaa630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:21, skipping insertion in model container [2024-11-19 13:55:21,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:55:20" (2/3) ... [2024-11-19 13:55:21,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eaa630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:55:21, skipping insertion in model container [2024-11-19 13:55:21,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:55:21" (3/3) ... [2024-11-19 13:55:21,424 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-11-19 13:55:21,439 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 13:55:21,440 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 13:55:21,440 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 13:55:21,491 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 13:55:21,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 81 transitions, 169 flow [2024-11-19 13:55:21,554 INFO L124 PetriNetUnfolderBase]: 12/85 cut-off events. [2024-11-19 13:55:21,555 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 13:55:21,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 85 events. 12/85 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 200 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2024-11-19 13:55:21,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 81 transitions, 169 flow [2024-11-19 13:55:21,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 80 transitions, 167 flow [2024-11-19 13:55:21,567 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:55:21,572 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;@1e949f57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:55:21,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 13:55:21,578 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:55:21,578 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-19 13:55:21,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:55:21,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:21,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 13:55:21,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:21,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:21,586 INFO L85 PathProgramCache]: Analyzing trace with hash 498670140, now seen corresponding path program 1 times [2024-11-19 13:55:21,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:21,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080416546] [2024-11-19 13:55:21,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:21,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:21,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080416546] [2024-11-19 13:55:21,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080416546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:21,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:21,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:55:21,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732220864] [2024-11-19 13:55:21,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:21,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:21,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:21,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:21,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:21,961 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-19 13:55:21,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 80 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-19 13:55:21,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:21,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-19 13:55:21,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:22,081 INFO L124 PetriNetUnfolderBase]: 193/436 cut-off events. [2024-11-19 13:55:22,081 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 13:55:22,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 436 events. 193/436 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1722 event pairs, 150 based on Foata normal form. 2/340 useless extension candidates. Maximal degree in co-relation 759. Up to 367 conditions per place. [2024-11-19 13:55:22,088 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 44 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-19 13:55:22,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 74 transitions, 247 flow [2024-11-19 13:55:22,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-19 13:55:22,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5596707818930041 [2024-11-19 13:55:22,100 INFO L175 Difference]: Start difference. First operand has 72 places, 80 transitions, 167 flow. Second operand 3 states and 136 transitions. [2024-11-19 13:55:22,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 74 transitions, 247 flow [2024-11-19 13:55:22,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 74 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 13:55:22,107 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 159 flow [2024-11-19 13:55:22,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=72, PETRI_TRANSITIONS=74} [2024-11-19 13:55:22,113 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 0 predicate places. [2024-11-19 13:55:22,113 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 159 flow [2024-11-19 13:55:22,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-19 13:55:22,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:22,113 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 13:55:22,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 13:55:22,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:22,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:22,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1721094315, now seen corresponding path program 1 times [2024-11-19 13:55:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959901258] [2024-11-19 13:55:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:22,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959901258] [2024-11-19 13:55:22,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959901258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:22,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:22,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:55:22,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654606235] [2024-11-19 13:55:22,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:22,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:22,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:22,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:22,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-19 13:55:22,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 74 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-19 13:55:22,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:22,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-19 13:55:22,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:22,329 INFO L124 PetriNetUnfolderBase]: 193/434 cut-off events. [2024-11-19 13:55:22,329 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 13:55:22,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 434 events. 193/434 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1698 event pairs, 150 based on Foata normal form. 2/338 useless extension candidates. Maximal degree in co-relation 780. Up to 367 conditions per place. [2024-11-19 13:55:22,332 INFO L140 encePairwiseOnDemand]: 77/81 looper letters, 42 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-11-19 13:55:22,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 72 transitions, 243 flow [2024-11-19 13:55:22,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-11-19 13:55:22,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5349794238683128 [2024-11-19 13:55:22,334 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 159 flow. Second operand 3 states and 130 transitions. [2024-11-19 13:55:22,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 72 transitions, 243 flow [2024-11-19 13:55:22,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:22,336 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 155 flow [2024-11-19 13:55:22,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=70, PETRI_TRANSITIONS=72} [2024-11-19 13:55:22,336 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -2 predicate places. [2024-11-19 13:55:22,336 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 155 flow [2024-11-19 13:55:22,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-19 13:55:22,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:22,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:22,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 13:55:22,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:22,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:22,338 INFO L85 PathProgramCache]: Analyzing trace with hash -409211703, now seen corresponding path program 1 times [2024-11-19 13:55:22,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:22,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551721341] [2024-11-19 13:55:22,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:22,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:22,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:22,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551721341] [2024-11-19 13:55:22,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551721341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:22,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:22,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:55:22,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037275987] [2024-11-19 13:55:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:22,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:22,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:22,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 81 [2024-11-19 13:55:22,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 13:55:22,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:22,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 81 [2024-11-19 13:55:22,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:22,510 INFO L124 PetriNetUnfolderBase]: 194/450 cut-off events. [2024-11-19 13:55:22,510 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 13:55:22,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 450 events. 194/450 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1834 event pairs, 150 based on Foata normal form. 2/354 useless extension candidates. Maximal degree in co-relation 780. Up to 377 conditions per place. [2024-11-19 13:55:22,513 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 48 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-11-19 13:55:22,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 267 flow [2024-11-19 13:55:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:22,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-19 13:55:22,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5761316872427984 [2024-11-19 13:55:22,516 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 155 flow. Second operand 3 states and 140 transitions. [2024-11-19 13:55:22,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 267 flow [2024-11-19 13:55:22,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:22,523 INFO L231 Difference]: Finished difference. Result has 71 places, 74 transitions, 172 flow [2024-11-19 13:55:22,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=71, PETRI_TRANSITIONS=74} [2024-11-19 13:55:22,524 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -1 predicate places. [2024-11-19 13:55:22,524 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 172 flow [2024-11-19 13:55:22,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-19 13:55:22,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:22,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:22,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 13:55:22,525 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:22,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:22,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1412387590, now seen corresponding path program 1 times [2024-11-19 13:55:22,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:22,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983032482] [2024-11-19 13:55:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:22,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:22,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:22,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983032482] [2024-11-19 13:55:22,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983032482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:22,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:22,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:22,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935224517] [2024-11-19 13:55:22,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:22,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:22,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:22,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:22,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2024-11-19 13:55:22,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 74 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-19 13:55:22,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:22,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2024-11-19 13:55:22,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:22,813 INFO L124 PetriNetUnfolderBase]: 194/448 cut-off events. [2024-11-19 13:55:22,813 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 13:55:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 448 events. 194/448 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1816 event pairs, 150 based on Foata normal form. 2/354 useless extension candidates. Maximal degree in co-relation 780. Up to 380 conditions per place. [2024-11-19 13:55:22,815 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 51 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-19 13:55:22,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 288 flow [2024-11-19 13:55:22,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:22,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-11-19 13:55:22,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49691358024691357 [2024-11-19 13:55:22,817 INFO L175 Difference]: Start difference. First operand has 71 places, 74 transitions, 172 flow. Second operand 4 states and 161 transitions. [2024-11-19 13:55:22,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 288 flow [2024-11-19 13:55:22,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:55:22,819 INFO L231 Difference]: Finished difference. Result has 75 places, 75 transitions, 190 flow [2024-11-19 13:55:22,819 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=75, PETRI_TRANSITIONS=75} [2024-11-19 13:55:22,819 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2024-11-19 13:55:22,820 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 75 transitions, 190 flow [2024-11-19 13:55:22,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-19 13:55:22,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:22,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:22,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 13:55:22,820 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:22,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:22,821 INFO L85 PathProgramCache]: Analyzing trace with hash 411225736, now seen corresponding path program 1 times [2024-11-19 13:55:22,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:22,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778724530] [2024-11-19 13:55:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:22,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:22,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:22,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778724530] [2024-11-19 13:55:22,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778724530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:22,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:22,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:55:22,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329386837] [2024-11-19 13:55:22,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:22,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:22,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:22,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:22,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-19 13:55:22,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 75 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-19 13:55:22,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:22,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-19 13:55:22,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:23,049 INFO L124 PetriNetUnfolderBase]: 162/399 cut-off events. [2024-11-19 13:55:23,049 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 13:55:23,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 399 events. 162/399 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1673 event pairs, 77 based on Foata normal form. 28/366 useless extension candidates. Maximal degree in co-relation 706. Up to 202 conditions per place. [2024-11-19 13:55:23,051 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 69 selfloop transitions, 4 changer transitions 4/100 dead transitions. [2024-11-19 13:55:23,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 100 transitions, 390 flow [2024-11-19 13:55:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:23,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-11-19 13:55:23,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707818930041153 [2024-11-19 13:55:23,052 INFO L175 Difference]: Start difference. First operand has 75 places, 75 transitions, 190 flow. Second operand 3 states and 163 transitions. [2024-11-19 13:55:23,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 100 transitions, 390 flow [2024-11-19 13:55:23,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 100 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:23,056 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 171 flow [2024-11-19 13:55:23,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-19 13:55:23,056 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -2 predicate places. [2024-11-19 13:55:23,057 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 171 flow [2024-11-19 13:55:23,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-19 13:55:23,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:23,057 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:23,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 13:55:23,057 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:23,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2121395888, now seen corresponding path program 1 times [2024-11-19 13:55:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624075788] [2024-11-19 13:55:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:23,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:23,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:23,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624075788] [2024-11-19 13:55:23,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624075788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:23,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524265346] [2024-11-19 13:55:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:23,172 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) [2024-11-19 13:55:23,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 13:55:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:23,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 13:55:23,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:23,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:55:23,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524265346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:23,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:55:23,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-19 13:55:23,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44485220] [2024-11-19 13:55:23,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:23,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:23,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:23,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:55:23,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-19 13:55:23,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-11-19 13:55:23,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:23,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-19 13:55:23,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:23,435 INFO L124 PetriNetUnfolderBase]: 132/314 cut-off events. [2024-11-19 13:55:23,436 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-19 13:55:23,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 314 events. 132/314 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1143 event pairs, 100 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 611. Up to 257 conditions per place. [2024-11-19 13:55:23,437 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 42 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2024-11-19 13:55:23,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 261 flow [2024-11-19 13:55:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-19 13:55:23,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2024-11-19 13:55:23,438 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 171 flow. Second operand 4 states and 148 transitions. [2024-11-19 13:55:23,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 261 flow [2024-11-19 13:55:23,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:55:23,440 INFO L231 Difference]: Finished difference. Result has 66 places, 64 transitions, 173 flow [2024-11-19 13:55:23,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=66, PETRI_TRANSITIONS=64} [2024-11-19 13:55:23,442 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -6 predicate places. [2024-11-19 13:55:23,442 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 173 flow [2024-11-19 13:55:23,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-11-19 13:55:23,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:23,443 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:23,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 13:55:23,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 13:55:23,647 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:23,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:23,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1338762554, now seen corresponding path program 1 times [2024-11-19 13:55:23,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:23,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830776939] [2024-11-19 13:55:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:23,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:23,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:23,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830776939] [2024-11-19 13:55:23,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830776939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:23,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334797641] [2024-11-19 13:55:23,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:23,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:23,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:23,721 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) [2024-11-19 13:55:23,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 13:55:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:23,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:55:23,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:23,829 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:23,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:55:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:23,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334797641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:55:23,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:55:23,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:55:23,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813904793] [2024-11-19 13:55:23,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:55:23,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:55:23,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:55:23,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:55:23,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-19 13:55:23,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 64 transitions, 173 flow. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 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) [2024-11-19 13:55:23,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:23,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-19 13:55:23,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:24,069 INFO L124 PetriNetUnfolderBase]: 134/338 cut-off events. [2024-11-19 13:55:24,070 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-19 13:55:24,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 338 events. 134/338 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1279 event pairs, 100 based on Foata normal form. 3/310 useless extension candidates. Maximal degree in co-relation 587. Up to 262 conditions per place. [2024-11-19 13:55:24,072 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 51 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2024-11-19 13:55:24,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 337 flow [2024-11-19 13:55:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:55:24,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:55:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 239 transitions. [2024-11-19 13:55:24,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42151675485008816 [2024-11-19 13:55:24,073 INFO L175 Difference]: Start difference. First operand has 66 places, 64 transitions, 173 flow. Second operand 7 states and 239 transitions. [2024-11-19 13:55:24,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 337 flow [2024-11-19 13:55:24,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 76 transitions, 315 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:55:24,076 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 226 flow [2024-11-19 13:55:24,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=226, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-11-19 13:55:24,077 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2024-11-19 13:55:24,077 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 226 flow [2024-11-19 13:55:24,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 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) [2024-11-19 13:55:24,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:24,078 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:24,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 13:55:24,278 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,SelfDestructingSolverStorable6 [2024-11-19 13:55:24,279 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:24,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1579681836, now seen corresponding path program 1 times [2024-11-19 13:55:24,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:24,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656923964] [2024-11-19 13:55:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:24,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 13:55:24,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:24,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656923964] [2024-11-19 13:55:24,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656923964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:24,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:24,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:24,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540656597] [2024-11-19 13:55:24,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:24,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:24,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:24,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:24,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:24,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 81 [2024-11-19 13:55:24,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-19 13:55:24,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:24,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 81 [2024-11-19 13:55:24,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:24,459 INFO L124 PetriNetUnfolderBase]: 133/333 cut-off events. [2024-11-19 13:55:24,460 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-11-19 13:55:24,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 333 events. 133/333 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1227 event pairs, 100 based on Foata normal form. 1/307 useless extension candidates. Maximal degree in co-relation 638. Up to 255 conditions per place. [2024-11-19 13:55:24,461 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 43 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-11-19 13:55:24,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 69 transitions, 317 flow [2024-11-19 13:55:24,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:24,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-11-19 13:55:24,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44135802469135804 [2024-11-19 13:55:24,463 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 226 flow. Second operand 4 states and 143 transitions. [2024-11-19 13:55:24,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 69 transitions, 317 flow [2024-11-19 13:55:24,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 69 transitions, 301 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:24,465 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 217 flow [2024-11-19 13:55:24,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2024-11-19 13:55:24,465 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2024-11-19 13:55:24,465 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 217 flow [2024-11-19 13:55:24,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2024-11-19 13:55:24,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:24,466 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:24,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 13:55:24,466 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:24,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:24,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1599565811, now seen corresponding path program 1 times [2024-11-19 13:55:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:24,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402149620] [2024-11-19 13:55:24,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:24,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 13:55:24,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:24,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402149620] [2024-11-19 13:55:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402149620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:24,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030979259] [2024-11-19 13:55:24,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:24,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:24,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:24,567 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) [2024-11-19 13:55:24,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 13:55:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:24,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:55:24,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:24,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 13:55:24,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:55:24,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 13:55:24,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030979259] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:55:24,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:55:24,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 13:55:24,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030790583] [2024-11-19 13:55:24,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:55:24,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:55:24,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:55:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:55:24,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 81 [2024-11-19 13:55:24,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 68 transitions, 217 flow. Second operand has 11 states, 11 states have (on average 22.363636363636363) internal successors, (246), 11 states have internal predecessors, (246), 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) [2024-11-19 13:55:24,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:24,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 81 [2024-11-19 13:55:24,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:25,001 INFO L124 PetriNetUnfolderBase]: 132/328 cut-off events. [2024-11-19 13:55:25,001 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-19 13:55:25,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 328 events. 132/328 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1091 event pairs, 100 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 631. Up to 254 conditions per place. [2024-11-19 13:55:25,002 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 47 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-11-19 13:55:25,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 71 transitions, 328 flow [2024-11-19 13:55:25,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:55:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:55:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2024-11-19 13:55:25,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.345679012345679 [2024-11-19 13:55:25,004 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 217 flow. Second operand 7 states and 196 transitions. [2024-11-19 13:55:25,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 71 transitions, 328 flow [2024-11-19 13:55:25,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 318 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:55:25,006 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 231 flow [2024-11-19 13:55:25,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=231, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2024-11-19 13:55:25,006 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 8 predicate places. [2024-11-19 13:55:25,006 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 231 flow [2024-11-19 13:55:25,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 22.363636363636363) internal successors, (246), 11 states have internal predecessors, (246), 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) [2024-11-19 13:55:25,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:25,007 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-19 13:55:25,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 13:55:25,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:25,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:25,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2021636235, now seen corresponding path program 1 times [2024-11-19 13:55:25,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:25,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827343928] [2024-11-19 13:55:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 13:55:25,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:25,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827343928] [2024-11-19 13:55:25,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827343928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:25,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:25,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:25,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505673010] [2024-11-19 13:55:25,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:25,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:25,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:25,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-19 13:55:25,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 231 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 13:55:25,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:25,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-19 13:55:25,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:25,445 INFO L124 PetriNetUnfolderBase]: 132/327 cut-off events. [2024-11-19 13:55:25,445 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-19 13:55:25,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 327 events. 132/327 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1087 event pairs, 100 based on Foata normal form. 1/301 useless extension candidates. Maximal degree in co-relation 641. Up to 263 conditions per place. [2024-11-19 13:55:25,447 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 43 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2024-11-19 13:55:25,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 68 transitions, 333 flow [2024-11-19 13:55:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:25,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2024-11-19 13:55:25,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-11-19 13:55:25,449 INFO L175 Difference]: Start difference. First operand has 80 places, 68 transitions, 231 flow. Second operand 4 states and 147 transitions. [2024-11-19 13:55:25,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 68 transitions, 333 flow [2024-11-19 13:55:25,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 320 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-19 13:55:25,451 INFO L231 Difference]: Finished difference. Result has 77 places, 68 transitions, 242 flow [2024-11-19 13:55:25,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=77, PETRI_TRANSITIONS=68} [2024-11-19 13:55:25,452 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-19 13:55:25,452 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 242 flow [2024-11-19 13:55:25,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 13:55:25,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:25,453 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-19 13:55:25,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 13:55:25,453 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:25,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:25,453 INFO L85 PathProgramCache]: Analyzing trace with hash 112126630, now seen corresponding path program 2 times [2024-11-19 13:55:25,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:25,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606736434] [2024-11-19 13:55:25,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:55:25,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:25,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:55:25,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:55:25,525 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 13:55:25,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:25,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606736434] [2024-11-19 13:55:25,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606736434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:25,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:25,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:25,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485621872] [2024-11-19 13:55:25,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:25,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:25,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:25,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 81 [2024-11-19 13:55:25,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-19 13:55:25,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:25,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 81 [2024-11-19 13:55:25,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:25,669 INFO L124 PetriNetUnfolderBase]: 132/326 cut-off events. [2024-11-19 13:55:25,670 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-19 13:55:25,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 326 events. 132/326 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1083 event pairs, 100 based on Foata normal form. 1/300 useless extension candidates. Maximal degree in co-relation 651. Up to 254 conditions per place. [2024-11-19 13:55:25,672 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 46 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2024-11-19 13:55:25,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 69 transitions, 350 flow [2024-11-19 13:55:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:25,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-19 13:55:25,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4012345679012346 [2024-11-19 13:55:25,673 INFO L175 Difference]: Start difference. First operand has 77 places, 68 transitions, 242 flow. Second operand 4 states and 130 transitions. [2024-11-19 13:55:25,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 69 transitions, 350 flow [2024-11-19 13:55:25,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 330 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:55:25,676 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 247 flow [2024-11-19 13:55:25,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=76, PETRI_TRANSITIONS=68} [2024-11-19 13:55:25,676 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 4 predicate places. [2024-11-19 13:55:25,676 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 247 flow [2024-11-19 13:55:25,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-19 13:55:25,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:25,677 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:25,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 13:55:25,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:25,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1264396276, now seen corresponding path program 2 times [2024-11-19 13:55:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:25,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404783670] [2024-11-19 13:55:25,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:55:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:25,705 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 13:55:25,705 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-19 13:55:25,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 13:55:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 13:55:25,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 13:55:25,736 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 13:55:25,737 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-19 13:55:25,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-19 13:55:25,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-19 13:55:25,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-19 13:55:25,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-19 13:55:25,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-19 13:55:25,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-19 13:55:25,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-19 13:55:25,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 13:55:25,741 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:25,743 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 13:55:25,743 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 13:55:25,777 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 13:55:25,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 120 transitions, 256 flow [2024-11-19 13:55:25,790 INFO L124 PetriNetUnfolderBase]: 23/147 cut-off events. [2024-11-19 13:55:25,791 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 13:55:25,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 147 events. 23/147 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 473 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 92. Up to 6 conditions per place. [2024-11-19 13:55:25,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 120 transitions, 256 flow [2024-11-19 13:55:25,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 120 transitions, 256 flow [2024-11-19 13:55:25,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:55:25,794 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;@1e949f57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:55:25,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 13:55:25,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:55:25,795 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-19 13:55:25,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:55:25,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:25,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 13:55:25,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:25,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:25,796 INFO L85 PathProgramCache]: Analyzing trace with hash 613186740, now seen corresponding path program 1 times [2024-11-19 13:55:25,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:25,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135219255] [2024-11-19 13:55:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:25,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:25,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135219255] [2024-11-19 13:55:25,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135219255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:25,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:25,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:55:25,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94282011] [2024-11-19 13:55:25,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:25,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:25,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:25,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:25,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:25,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-19 13:55:25,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 120 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-19 13:55:25,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:25,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-19 13:55:25,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:27,029 INFO L124 PetriNetUnfolderBase]: 11368/17474 cut-off events. [2024-11-19 13:55:27,029 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-19 13:55:27,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34059 conditions, 17474 events. 11368/17474 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 106265 event pairs, 9489 based on Foata normal form. 2/14153 useless extension candidates. Maximal degree in co-relation 26942. Up to 16439 conditions per place. [2024-11-19 13:55:27,098 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 76 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-11-19 13:55:27,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 111 transitions, 394 flow [2024-11-19 13:55:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2024-11-19 13:55:27,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-19 13:55:27,099 INFO L175 Difference]: Start difference. First operand has 103 places, 120 transitions, 256 flow. Second operand 3 states and 186 transitions. [2024-11-19 13:55:27,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 111 transitions, 394 flow [2024-11-19 13:55:27,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 111 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 13:55:27,101 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 242 flow [2024-11-19 13:55:27,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2024-11-19 13:55:27,101 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2024-11-19 13:55:27,102 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 242 flow [2024-11-19 13:55:27,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-19 13:55:27,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:27,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 13:55:27,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 13:55:27,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:27,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1828920405, now seen corresponding path program 1 times [2024-11-19 13:55:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:27,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379888187] [2024-11-19 13:55:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:27,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:27,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379888187] [2024-11-19 13:55:27,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379888187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:27,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:27,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:55:27,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603442098] [2024-11-19 13:55:27,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:27,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:27,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:27,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:27,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-19 13:55:27,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 111 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-19 13:55:27,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:27,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-19 13:55:27,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:28,207 INFO L124 PetriNetUnfolderBase]: 11368/17472 cut-off events. [2024-11-19 13:55:28,208 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-19 13:55:28,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34058 conditions, 17472 events. 11368/17472 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 106331 event pairs, 9489 based on Foata normal form. 2/14151 useless extension candidates. Maximal degree in co-relation 34022. Up to 16439 conditions per place. [2024-11-19 13:55:28,263 INFO L140 encePairwiseOnDemand]: 116/120 looper letters, 74 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-11-19 13:55:28,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 109 transitions, 390 flow [2024-11-19 13:55:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:28,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-11-19 13:55:28,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-11-19 13:55:28,265 INFO L175 Difference]: Start difference. First operand has 103 places, 111 transitions, 242 flow. Second operand 3 states and 177 transitions. [2024-11-19 13:55:28,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 109 transitions, 390 flow [2024-11-19 13:55:28,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:28,267 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 238 flow [2024-11-19 13:55:28,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2024-11-19 13:55:28,267 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2024-11-19 13:55:28,267 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 238 flow [2024-11-19 13:55:28,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-19 13:55:28,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:28,268 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:28,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 13:55:28,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:28,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:28,268 INFO L85 PathProgramCache]: Analyzing trace with hash 950905033, now seen corresponding path program 1 times [2024-11-19 13:55:28,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:28,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073965980] [2024-11-19 13:55:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:28,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:28,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:28,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:28,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073965980] [2024-11-19 13:55:28,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073965980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:28,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:28,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:55:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463705432] [2024-11-19 13:55:28,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:28,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:28,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:28,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:28,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:28,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 120 [2024-11-19 13:55:28,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-11-19 13:55:28,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:28,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 120 [2024-11-19 13:55:28,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:29,255 INFO L124 PetriNetUnfolderBase]: 11369/17488 cut-off events. [2024-11-19 13:55:29,256 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-19 13:55:29,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34082 conditions, 17488 events. 11369/17488 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 106425 event pairs, 9489 based on Foata normal form. 2/14167 useless extension candidates. Maximal degree in co-relation 34022. Up to 16449 conditions per place. [2024-11-19 13:55:29,320 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 80 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2024-11-19 13:55:29,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 113 transitions, 414 flow [2024-11-19 13:55:29,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:29,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2024-11-19 13:55:29,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5194444444444445 [2024-11-19 13:55:29,321 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 238 flow. Second operand 3 states and 187 transitions. [2024-11-19 13:55:29,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 113 transitions, 414 flow [2024-11-19 13:55:29,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 113 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:29,324 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 255 flow [2024-11-19 13:55:29,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2024-11-19 13:55:29,326 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, -1 predicate places. [2024-11-19 13:55:29,326 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 255 flow [2024-11-19 13:55:29,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2024-11-19 13:55:29,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:29,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:29,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 13:55:29,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:29,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1708967674, now seen corresponding path program 1 times [2024-11-19 13:55:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239711773] [2024-11-19 13:55:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:29,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:29,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239711773] [2024-11-19 13:55:29,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239711773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:29,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:29,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:29,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913720056] [2024-11-19 13:55:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:29,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:29,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:29,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:29,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:29,407 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 120 [2024-11-19 13:55:29,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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) [2024-11-19 13:55:29,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:29,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 120 [2024-11-19 13:55:29,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:30,417 INFO L124 PetriNetUnfolderBase]: 11369/17486 cut-off events. [2024-11-19 13:55:30,418 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-11-19 13:55:30,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34091 conditions, 17486 events. 11369/17486 cut-off events. For 222/222 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 106350 event pairs, 9489 based on Foata normal form. 2/14167 useless extension candidates. Maximal degree in co-relation 34022. Up to 16452 conditions per place. [2024-11-19 13:55:30,492 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 83 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2024-11-19 13:55:30,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 114 transitions, 435 flow [2024-11-19 13:55:30,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:30,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 213 transitions. [2024-11-19 13:55:30,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44375 [2024-11-19 13:55:30,494 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 255 flow. Second operand 4 states and 213 transitions. [2024-11-19 13:55:30,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 114 transitions, 435 flow [2024-11-19 13:55:30,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 114 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:55:30,496 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 273 flow [2024-11-19 13:55:30,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=273, PETRI_PLACES=106, PETRI_TRANSITIONS=112} [2024-11-19 13:55:30,497 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 3 predicate places. [2024-11-19 13:55:30,497 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 273 flow [2024-11-19 13:55:30,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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) [2024-11-19 13:55:30,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:30,498 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:30,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 13:55:30,499 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:30,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1630875419, now seen corresponding path program 1 times [2024-11-19 13:55:30,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192353257] [2024-11-19 13:55:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:30,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:30,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:30,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192353257] [2024-11-19 13:55:30,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192353257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:30,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:30,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:55:30,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827763916] [2024-11-19 13:55:30,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:30,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:30,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:30,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:30,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:30,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-19 13:55:30,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 112 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:55:30,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:30,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-19 13:55:30,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:31,637 INFO L124 PetriNetUnfolderBase]: 13068/20170 cut-off events. [2024-11-19 13:55:31,638 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-19 13:55:31,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39105 conditions, 20170 events. 13068/20170 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 132245 event pairs, 5470 based on Foata normal form. 83/16666 useless extension candidates. Maximal degree in co-relation 39059. Up to 13739 conditions per place. [2024-11-19 13:55:31,738 INFO L140 encePairwiseOnDemand]: 111/120 looper letters, 141 selfloop transitions, 5 changer transitions 1/177 dead transitions. [2024-11-19 13:55:31,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 177 transitions, 703 flow [2024-11-19 13:55:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-19 13:55:31,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-19 13:55:31,741 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 273 flow. Second operand 3 states and 250 transitions. [2024-11-19 13:55:31,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 177 transitions, 703 flow [2024-11-19 13:55:31,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 177 transitions, 697 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:31,744 INFO L231 Difference]: Finished difference. Result has 107 places, 113 transitions, 296 flow [2024-11-19 13:55:31,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=107, PETRI_TRANSITIONS=113} [2024-11-19 13:55:31,744 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 4 predicate places. [2024-11-19 13:55:31,745 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 113 transitions, 296 flow [2024-11-19 13:55:31,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:55:31,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:31,745 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:31,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 13:55:31,745 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:31,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1814718008, now seen corresponding path program 1 times [2024-11-19 13:55:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726252345] [2024-11-19 13:55:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:31,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:31,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726252345] [2024-11-19 13:55:31,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726252345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660200175] [2024-11-19 13:55:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:31,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:31,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:31,822 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) [2024-11-19 13:55:31,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 13:55:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:31,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 13:55:31,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:31,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:55:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660200175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:31,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:55:31,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-19 13:55:31,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730492104] [2024-11-19 13:55:31,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:31,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:31,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:31,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 13:55:31,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-19 13:55:31,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 113 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 13:55:31,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:31,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-19 13:55:31,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:32,746 INFO L124 PetriNetUnfolderBase]: 9728/15043 cut-off events. [2024-11-19 13:55:32,746 INFO L125 PetriNetUnfolderBase]: For 3347/4797 co-relation queries the response was YES. [2024-11-19 13:55:32,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31133 conditions, 15043 events. 9728/15043 cut-off events. For 3347/4797 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 90665 event pairs, 8129 based on Foata normal form. 2/13547 useless extension candidates. Maximal degree in co-relation 31084. Up to 14184 conditions per place. [2024-11-19 13:55:32,804 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 78 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-11-19 13:55:32,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 111 transitions, 458 flow [2024-11-19 13:55:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:32,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-11-19 13:55:32,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42291666666666666 [2024-11-19 13:55:32,806 INFO L175 Difference]: Start difference. First operand has 107 places, 113 transitions, 296 flow. Second operand 4 states and 203 transitions. [2024-11-19 13:55:32,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 111 transitions, 458 flow [2024-11-19 13:55:32,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 111 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 13:55:32,812 INFO L231 Difference]: Finished difference. Result has 107 places, 111 transitions, 297 flow [2024-11-19 13:55:32,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=297, PETRI_PLACES=107, PETRI_TRANSITIONS=111} [2024-11-19 13:55:32,812 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 4 predicate places. [2024-11-19 13:55:32,812 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 111 transitions, 297 flow [2024-11-19 13:55:32,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2024-11-19 13:55:32,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:32,813 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:32,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 13:55:33,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 13:55:33,014 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:33,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash -421682746, now seen corresponding path program 1 times [2024-11-19 13:55:33,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:33,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387749345] [2024-11-19 13:55:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:33,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:33,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:33,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387749345] [2024-11-19 13:55:33,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387749345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:33,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255885864] [2024-11-19 13:55:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:33,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:33,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:33,085 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) [2024-11-19 13:55:33,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 13:55:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:33,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:55:33,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:33,179 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:33,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:55:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:33,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255885864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:55:33,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:55:33,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 13:55:33,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313175359] [2024-11-19 13:55:33,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:55:33,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 13:55:33,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:33,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 13:55:33,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 13:55:33,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-19 13:55:33,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 111 transitions, 297 flow. Second operand has 10 states, 10 states have (on average 32.0) internal successors, (320), 10 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) [2024-11-19 13:55:33,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:33,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-19 13:55:33,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:34,320 INFO L124 PetriNetUnfolderBase]: 9730/15067 cut-off events. [2024-11-19 13:55:34,320 INFO L125 PetriNetUnfolderBase]: For 1857/3307 co-relation queries the response was YES. [2024-11-19 13:55:34,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31102 conditions, 15067 events. 9730/15067 cut-off events. For 1857/3307 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 91094 event pairs, 8129 based on Foata normal form. 3/13570 useless extension candidates. Maximal degree in co-relation 31006. Up to 14189 conditions per place. [2024-11-19 13:55:34,377 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 87 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2024-11-19 13:55:34,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 123 transitions, 535 flow [2024-11-19 13:55:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 13:55:34,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 13:55:34,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 309 transitions. [2024-11-19 13:55:34,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3678571428571429 [2024-11-19 13:55:34,380 INFO L175 Difference]: Start difference. First operand has 107 places, 111 transitions, 297 flow. Second operand 7 states and 309 transitions. [2024-11-19 13:55:34,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 123 transitions, 535 flow [2024-11-19 13:55:34,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 123 transitions, 513 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:55:34,384 INFO L231 Difference]: Finished difference. Result has 114 places, 116 transitions, 352 flow [2024-11-19 13:55:34,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=352, PETRI_PLACES=114, PETRI_TRANSITIONS=116} [2024-11-19 13:55:34,384 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 11 predicate places. [2024-11-19 13:55:34,384 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 116 transitions, 352 flow [2024-11-19 13:55:34,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.0) internal successors, (320), 10 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) [2024-11-19 13:55:34,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:34,385 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:34,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 13:55:34,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:34,590 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:34,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:34,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1439248214, now seen corresponding path program 1 times [2024-11-19 13:55:34,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:34,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381806434] [2024-11-19 13:55:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:34,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:34,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:34,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381806434] [2024-11-19 13:55:34,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381806434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:34,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958789098] [2024-11-19 13:55:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:34,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:34,678 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) [2024-11-19 13:55:34,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 13:55:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:34,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 13:55:34,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 13:55:34,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 13:55:34,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958789098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:34,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 13:55:34,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-11-19 13:55:34,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690927950] [2024-11-19 13:55:34,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:34,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:34,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:34,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:34,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 13:55:34,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 120 [2024-11-19 13:55:34,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 116 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-19 13:55:34,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:34,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 120 [2024-11-19 13:55:34,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:35,948 INFO L124 PetriNetUnfolderBase]: 9729/15062 cut-off events. [2024-11-19 13:55:35,949 INFO L125 PetriNetUnfolderBase]: For 1874/3324 co-relation queries the response was YES. [2024-11-19 13:55:35,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31103 conditions, 15062 events. 9729/15062 cut-off events. For 1874/3324 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 90779 event pairs, 8129 based on Foata normal form. 1/13567 useless extension candidates. Maximal degree in co-relation 31059. Up to 14182 conditions per place. [2024-11-19 13:55:36,016 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 79 selfloop transitions, 6 changer transitions 0/116 dead transitions. [2024-11-19 13:55:36,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 514 flow [2024-11-19 13:55:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-19 13:55:36,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-11-19 13:55:36,018 INFO L175 Difference]: Start difference. First operand has 114 places, 116 transitions, 352 flow. Second operand 4 states and 198 transitions. [2024-11-19 13:55:36,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 514 flow [2024-11-19 13:55:36,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 498 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:36,022 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 342 flow [2024-11-19 13:55:36,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=342, PETRI_PLACES=116, PETRI_TRANSITIONS=115} [2024-11-19 13:55:36,023 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 13 predicate places. [2024-11-19 13:55:36,023 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 342 flow [2024-11-19 13:55:36,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-19 13:55:36,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:36,023 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:36,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 13:55:36,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:36,227 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:36,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:36,228 INFO L85 PathProgramCache]: Analyzing trace with hash -310756567, now seen corresponding path program 1 times [2024-11-19 13:55:36,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:36,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189079317] [2024-11-19 13:55:36,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:36,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:36,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 13:55:36,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:36,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189079317] [2024-11-19 13:55:36,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189079317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 13:55:36,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468895519] [2024-11-19 13:55:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:36,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:36,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 13:55:36,334 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) [2024-11-19 13:55:36,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 13:55:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:36,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 13:55:36,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 13:55:36,539 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 13:55:36,541 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 13:55:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 13:55:36,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468895519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 13:55:36,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 13:55:36,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-11-19 13:55:36,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025123918] [2024-11-19 13:55:36,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 13:55:36,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 13:55:36,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:36,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 13:55:36,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-19 13:55:36,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 120 [2024-11-19 13:55:36,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 115 transitions, 342 flow. Second operand has 11 states, 11 states have (on average 24.818181818181817) internal successors, (273), 11 states have internal predecessors, (273), 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) [2024-11-19 13:55:36,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:36,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 120 [2024-11-19 13:55:36,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:38,341 INFO L124 PetriNetUnfolderBase]: 11398/17701 cut-off events. [2024-11-19 13:55:38,341 INFO L125 PetriNetUnfolderBase]: For 2430/2430 co-relation queries the response was YES. [2024-11-19 13:55:38,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36710 conditions, 17701 events. 11398/17701 cut-off events. For 2430/2430 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 115688 event pairs, 4689 based on Foata normal form. 734/15909 useless extension candidates. Maximal degree in co-relation 36659. Up to 11284 conditions per place. [2024-11-19 13:55:38,417 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 200 selfloop transitions, 13 changer transitions 2/237 dead transitions. [2024-11-19 13:55:38,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 237 transitions, 1010 flow [2024-11-19 13:55:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 13:55:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 13:55:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 406 transitions. [2024-11-19 13:55:38,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37592592592592594 [2024-11-19 13:55:38,419 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 342 flow. Second operand 9 states and 406 transitions. [2024-11-19 13:55:38,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 237 transitions, 1010 flow [2024-11-19 13:55:38,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 237 transitions, 1000 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 13:55:38,422 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 355 flow [2024-11-19 13:55:38,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=355, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2024-11-19 13:55:38,423 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 18 predicate places. [2024-11-19 13:55:38,423 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 355 flow [2024-11-19 13:55:38,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.818181818181817) internal successors, (273), 11 states have internal predecessors, (273), 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) [2024-11-19 13:55:38,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:38,423 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-19 13:55:38,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 13:55:38,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 13:55:38,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:38,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:38,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1723811837, now seen corresponding path program 1 times [2024-11-19 13:55:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98222801] [2024-11-19 13:55:38,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:38,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-19 13:55:38,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:38,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98222801] [2024-11-19 13:55:38,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98222801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:38,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:38,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:38,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127562107] [2024-11-19 13:55:38,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:38,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:38,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:38,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:38,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-19 13:55:38,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:55:38,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:38,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-19 13:55:38,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:39,562 INFO L124 PetriNetUnfolderBase]: 9728/15049 cut-off events. [2024-11-19 13:55:39,562 INFO L125 PetriNetUnfolderBase]: For 3626/4351 co-relation queries the response was YES. [2024-11-19 13:55:39,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32000 conditions, 15049 events. 9728/15049 cut-off events. For 3626/4351 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 90575 event pairs, 8129 based on Foata normal form. 1/13554 useless extension candidates. Maximal degree in co-relation 31948. Up to 14190 conditions per place. [2024-11-19 13:55:39,637 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 79 selfloop transitions, 9 changer transitions 0/113 dead transitions. [2024-11-19 13:55:39,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 113 transitions, 529 flow [2024-11-19 13:55:39,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-11-19 13:55:39,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42083333333333334 [2024-11-19 13:55:39,638 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 355 flow. Second operand 4 states and 202 transitions. [2024-11-19 13:55:39,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 113 transitions, 529 flow [2024-11-19 13:55:39,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 512 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-19 13:55:39,642 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 362 flow [2024-11-19 13:55:39,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2024-11-19 13:55:39,642 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 14 predicate places. [2024-11-19 13:55:39,642 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 362 flow [2024-11-19 13:55:39,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 13:55:39,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:39,643 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-19 13:55:39,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 13:55:39,643 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:39,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:39,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1431189670, now seen corresponding path program 2 times [2024-11-19 13:55:39,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:39,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665229468] [2024-11-19 13:55:39,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 13:55:39,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:39,653 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 13:55:39,654 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 13:55:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-19 13:55:39,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:39,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665229468] [2024-11-19 13:55:39,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665229468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:39,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:39,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 13:55:39,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256386603] [2024-11-19 13:55:39,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:39,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 13:55:39,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:39,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 13:55:39,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 13:55:39,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 120 [2024-11-19 13:55:39,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 13:55:39,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:39,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 120 [2024-11-19 13:55:39,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:40,520 INFO L124 PetriNetUnfolderBase]: 9728/15048 cut-off events. [2024-11-19 13:55:40,520 INFO L125 PetriNetUnfolderBase]: For 3496/4221 co-relation queries the response was YES. [2024-11-19 13:55:40,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31190 conditions, 15048 events. 9728/15048 cut-off events. For 3496/4221 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 90500 event pairs, 8129 based on Foata normal form. 1/13553 useless extension candidates. Maximal degree in co-relation 31138. Up to 14181 conditions per place. [2024-11-19 13:55:40,591 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 82 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2024-11-19 13:55:40,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 114 transitions, 542 flow [2024-11-19 13:55:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 13:55:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 13:55:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-19 13:55:40,593 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3854166666666667 [2024-11-19 13:55:40,593 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 362 flow. Second operand 4 states and 185 transitions. [2024-11-19 13:55:40,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 114 transitions, 542 flow [2024-11-19 13:55:40,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 522 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 13:55:40,597 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 367 flow [2024-11-19 13:55:40,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=367, PETRI_PLACES=116, PETRI_TRANSITIONS=113} [2024-11-19 13:55:40,598 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 13 predicate places. [2024-11-19 13:55:40,598 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 367 flow [2024-11-19 13:55:40,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-19 13:55:40,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:40,598 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:40,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 13:55:40,598 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:40,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:40,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1664564178, now seen corresponding path program 1 times [2024-11-19 13:55:40,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:40,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192423821] [2024-11-19 13:55:40,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:40,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 13:55:40,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:40,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192423821] [2024-11-19 13:55:40,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192423821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:40,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:40,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 13:55:40,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686976829] [2024-11-19 13:55:40,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:40,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:40,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:40,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:40,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:40,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-19 13:55:40,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 113 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-19 13:55:40,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:40,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-19 13:55:40,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 13:55:41,558 INFO L124 PetriNetUnfolderBase]: 9810/15124 cut-off events. [2024-11-19 13:55:41,559 INFO L125 PetriNetUnfolderBase]: For 1299/1299 co-relation queries the response was YES. [2024-11-19 13:55:41,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31438 conditions, 15124 events. 9810/15124 cut-off events. For 1299/1299 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 89056 event pairs, 6571 based on Foata normal form. 1/13643 useless extension candidates. Maximal degree in co-relation 31360. Up to 11620 conditions per place. [2024-11-19 13:55:41,627 INFO L140 encePairwiseOnDemand]: 112/120 looper letters, 131 selfloop transitions, 8 changer transitions 1/171 dead transitions. [2024-11-19 13:55:41,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 171 transitions, 759 flow [2024-11-19 13:55:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 13:55:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 13:55:41,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2024-11-19 13:55:41,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-11-19 13:55:41,629 INFO L175 Difference]: Start difference. First operand has 116 places, 113 transitions, 367 flow. Second operand 3 states and 237 transitions. [2024-11-19 13:55:41,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 171 transitions, 759 flow [2024-11-19 13:55:41,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 171 transitions, 748 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-19 13:55:41,641 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 375 flow [2024-11-19 13:55:41,641 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=115, PETRI_TRANSITIONS=112} [2024-11-19 13:55:41,642 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 12 predicate places. [2024-11-19 13:55:41,642 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 375 flow [2024-11-19 13:55:41,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-19 13:55:41,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:41,642 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:41,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 13:55:41,642 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:41,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:41,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1918320249, now seen corresponding path program 1 times [2024-11-19 13:55:41,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:41,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833761898] [2024-11-19 13:55:41,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:41,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 13:55:41,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 13:55:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 13:55:41,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 13:55:41,700 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 13:55:41,701 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-19 13:55:41,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-19 13:55:41,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-19 13:55:41,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 13:55:41,703 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 13:55:41,704 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 13:55:41,704 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 13:55:41,745 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 13:55:41,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 159 transitions, 345 flow [2024-11-19 13:55:41,760 INFO L124 PetriNetUnfolderBase]: 37/228 cut-off events. [2024-11-19 13:55:41,760 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 13:55:41,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 228 events. 37/228 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 857 event pairs, 1 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 155. Up to 12 conditions per place. [2024-11-19 13:55:41,761 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 159 transitions, 345 flow [2024-11-19 13:55:41,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 159 transitions, 345 flow [2024-11-19 13:55:41,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 13:55:41,765 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;@1e949f57, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 13:55:41,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-19 13:55:41,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 13:55:41,766 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-19 13:55:41,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 13:55:41,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 13:55:41,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 13:55:41,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-19 13:55:41,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 13:55:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 764921235, now seen corresponding path program 1 times [2024-11-19 13:55:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 13:55:41,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405847723] [2024-11-19 13:55:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 13:55:41,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 13:55:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 13:55:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 13:55:41,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 13:55:41,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405847723] [2024-11-19 13:55:41,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405847723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 13:55:41,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 13:55:41,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 13:55:41,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798920216] [2024-11-19 13:55:41,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 13:55:41,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 13:55:41,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 13:55:41,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 13:55:41,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 13:55:41,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 159 [2024-11-19 13:55:41,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 159 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-11-19 13:55:41,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 13:55:41,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 159 [2024-11-19 13:55:41,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand