./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 c7c6ca5d 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-?-c7c6ca5-m [2024-11-09 15:00:58,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:00:58,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:00:58,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:00:58,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:00:58,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:00:58,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:00:58,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:00:58,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:00:58,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:00:58,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:00:58,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:00:58,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:00:58,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:00:58,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:00:58,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:00:58,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:00:58,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:00:58,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:00:58,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:00:58,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:00:58,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:00:58,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:00:58,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:00:58,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:00:58,660 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:00:58,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:00:58,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:00:58,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:00:58,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:00:58,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:00:58,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:00:58,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:00:58,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:00:58,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:00:58,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:00:58,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:00:58,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:00:58,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:00:58,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:00:58,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:00:58,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:00:58,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:00:58,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:00:58,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 516fee84c55ddb7fa4275a43ad5a2da6ea994abf63bbbbd8ed5c82108d65f7b0 [2024-11-09 15:00:58,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:00:59,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:00:59,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:00:59,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:00:59,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:00:59,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-09 15:01:00,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:01:00,834 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:01:00,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-11-09 15:01:00,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c88f78bb/d5af67374a1047d695e6aafaa7de9e5c/FLAG3bb445951 [2024-11-09 15:01:00,885 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c88f78bb/d5af67374a1047d695e6aafaa7de9e5c [2024-11-09 15:01:00,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:01:00,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:01:00,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:01:00,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:01:00,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:01:00,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:01:00" (1/1) ... [2024-11-09 15:01:00,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53721e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:00, skipping insertion in model container [2024-11-09 15:01:00,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:01:00" (1/1) ... [2024-11-09 15:01:00,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:01:01,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:01:01,607 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:01:01,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:01:01,786 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:01:01,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01 WrapperNode [2024-11-09 15:01:01,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:01:01,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:01:01,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:01:01,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:01:01,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,899 INFO L138 Inliner]: procedures = 458, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 189 [2024-11-09 15:01:01,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:01:01,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:01:01,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:01:01,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:01:01,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,916 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,933 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]. [2024-11-09 15:01:01,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:01:01,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:01:01,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:01:01,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:01:01,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (1/1) ... [2024-11-09 15:01:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:01:01,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:02,016 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) [2024-11-09 15:01:02,019 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 [2024-11-09 15:01:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:01:02,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:01:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:01:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:01:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-09 15:01:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-09 15:01:02,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:01:02,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:01:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:01:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:01:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:01:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:01:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:01:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:01:02,079 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:01:02,407 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:01:02,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:01:02,724 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:01:02,725 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:01:02,923 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:01:02,927 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-09 15:01:02,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:01:02 BoogieIcfgContainer [2024-11-09 15:01:02,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:01:02,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:01:02,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:01:02,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:01:02,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:01:00" (1/3) ... [2024-11-09 15:01:02,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74825e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:01:02, skipping insertion in model container [2024-11-09 15:01:02,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:01:01" (2/3) ... [2024-11-09 15:01:02,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74825e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:01:02, skipping insertion in model container [2024-11-09 15:01:02,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:01:02" (3/3) ... [2024-11-09 15:01:02,938 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-11-09 15:01:02,956 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:01:02,956 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-09 15:01:02,956 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:01:03,041 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 15:01:03,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 81 transitions, 169 flow [2024-11-09 15:01:03,117 INFO L124 PetriNetUnfolderBase]: 12/85 cut-off events. [2024-11-09 15:01:03,117 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:01:03,120 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. [2024-11-09 15:01:03,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 81 transitions, 169 flow [2024-11-09 15:01:03,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 80 transitions, 167 flow [2024-11-09 15:01:03,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:01:03,142 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;@609c69dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:01:03,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:01:03,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:01:03,147 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 15:01:03,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:01:03,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:03,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:01:03,149 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)] === [2024-11-09 15:01:03,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:03,154 INFO L85 PathProgramCache]: Analyzing trace with hash 498670140, now seen corresponding path program 1 times [2024-11-09 15:01:03,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:03,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466278201] [2024-11-09 15:01:03,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:03,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:03,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466278201] [2024-11-09 15:01:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466278201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:03,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:03,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:01:03,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728898089] [2024-11-09 15:01:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:03,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:03,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:03,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-09 15:01:03,647 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) [2024-11-09 15:01:03,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:03,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-09 15:01:03,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:03,899 INFO L124 PetriNetUnfolderBase]: 193/436 cut-off events. [2024-11-09 15:01:03,899 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:01:03,901 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. [2024-11-09 15:01:03,910 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 44 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-11-09 15:01:03,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 74 transitions, 247 flow [2024-11-09 15:01:03,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-09 15:01:03,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5596707818930041 [2024-11-09 15:01:03,930 INFO L175 Difference]: Start difference. First operand has 72 places, 80 transitions, 167 flow. Second operand 3 states and 136 transitions. [2024-11-09 15:01:03,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 74 transitions, 247 flow [2024-11-09 15:01:03,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 74 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:01:03,938 INFO L231 Difference]: Finished difference. Result has 72 places, 74 transitions, 159 flow [2024-11-09 15:01:03,941 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} [2024-11-09 15:01:03,945 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 0 predicate places. [2024-11-09 15:01:03,945 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 74 transitions, 159 flow [2024-11-09 15:01:03,945 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) [2024-11-09 15:01:03,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:03,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:01:03,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:01:03,946 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)] === [2024-11-09 15:01:03,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1721094315, now seen corresponding path program 1 times [2024-11-09 15:01:03,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:03,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316375958] [2024-11-09 15:01:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:04,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:04,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316375958] [2024-11-09 15:01:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316375958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:04,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:04,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:01:04,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867140105] [2024-11-09 15:01:04,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:04,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:04,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:04,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-09 15:01:04,109 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) [2024-11-09 15:01:04,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:04,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-09 15:01:04,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:04,286 INFO L124 PetriNetUnfolderBase]: 193/434 cut-off events. [2024-11-09 15:01:04,287 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:01:04,290 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. [2024-11-09 15:01:04,293 INFO L140 encePairwiseOnDemand]: 77/81 looper letters, 42 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-11-09 15:01:04,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 72 transitions, 243 flow [2024-11-09 15:01:04,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:04,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:04,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2024-11-09 15:01:04,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5349794238683128 [2024-11-09 15:01:04,296 INFO L175 Difference]: Start difference. First operand has 72 places, 74 transitions, 159 flow. Second operand 3 states and 130 transitions. [2024-11-09 15:01:04,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 72 transitions, 243 flow [2024-11-09 15:01:04,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 72 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:04,300 INFO L231 Difference]: Finished difference. Result has 70 places, 72 transitions, 155 flow [2024-11-09 15:01:04,301 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} [2024-11-09 15:01:04,302 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -2 predicate places. [2024-11-09 15:01:04,302 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 72 transitions, 155 flow [2024-11-09 15:01:04,302 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) [2024-11-09 15:01:04,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:04,303 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:04,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:01:04,303 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)] === [2024-11-09 15:01:04,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:04,304 INFO L85 PathProgramCache]: Analyzing trace with hash -409211703, now seen corresponding path program 1 times [2024-11-09 15:01:04,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:04,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312654888] [2024-11-09 15:01:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:04,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:04,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:04,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312654888] [2024-11-09 15:01:04,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312654888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:04,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:04,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:01:04,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345544638] [2024-11-09 15:01:04,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:04,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:04,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:04,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 81 [2024-11-09 15:01:04,436 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) [2024-11-09 15:01:04,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:04,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 81 [2024-11-09 15:01:04,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:04,571 INFO L124 PetriNetUnfolderBase]: 194/450 cut-off events. [2024-11-09 15:01:04,572 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:01:04,573 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. [2024-11-09 15:01:04,576 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 48 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-11-09 15:01:04,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 267 flow [2024-11-09 15:01:04,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:04,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-09 15:01:04,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5761316872427984 [2024-11-09 15:01:04,580 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 155 flow. Second operand 3 states and 140 transitions. [2024-11-09 15:01:04,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 267 flow [2024-11-09 15:01:04,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 76 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:04,585 INFO L231 Difference]: Finished difference. Result has 71 places, 74 transitions, 172 flow [2024-11-09 15:01:04,586 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} [2024-11-09 15:01:04,586 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -1 predicate places. [2024-11-09 15:01:04,587 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 74 transitions, 172 flow [2024-11-09 15:01:04,587 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) [2024-11-09 15:01:04,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:04,588 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:04,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:01:04,588 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)] === [2024-11-09 15:01:04,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1412387590, now seen corresponding path program 1 times [2024-11-09 15:01:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713702463] [2024-11-09 15:01:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:04,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:04,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:04,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713702463] [2024-11-09 15:01:04,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713702463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:04,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:04,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:01:04,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444069676] [2024-11-09 15:01:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:04,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:04,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:04,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:04,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:01:04,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 81 [2024-11-09 15:01:04,781 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) [2024-11-09 15:01:04,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:04,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 81 [2024-11-09 15:01:04,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:04,970 INFO L124 PetriNetUnfolderBase]: 194/448 cut-off events. [2024-11-09 15:01:04,970 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 15:01:04,974 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. [2024-11-09 15:01:04,975 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 51 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2024-11-09 15:01:04,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 288 flow [2024-11-09 15:01:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-11-09 15:01:04,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49691358024691357 [2024-11-09 15:01:04,980 INFO L175 Difference]: Start difference. First operand has 71 places, 74 transitions, 172 flow. Second operand 4 states and 161 transitions. [2024-11-09 15:01:04,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 288 flow [2024-11-09 15:01:04,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 77 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:01:04,984 INFO L231 Difference]: Finished difference. Result has 75 places, 75 transitions, 190 flow [2024-11-09 15:01:04,986 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} [2024-11-09 15:01:04,986 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2024-11-09 15:01:04,987 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 75 transitions, 190 flow [2024-11-09 15:01:04,987 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) [2024-11-09 15:01:04,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:04,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:04,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:01:04,987 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)] === [2024-11-09 15:01:04,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:04,988 INFO L85 PathProgramCache]: Analyzing trace with hash 411225736, now seen corresponding path program 1 times [2024-11-09 15:01:04,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:04,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325802242] [2024-11-09 15:01:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:04,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:05,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:05,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325802242] [2024-11-09 15:01:05,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325802242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:05,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:05,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:01:05,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615317950] [2024-11-09 15:01:05,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:05,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:05,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:05,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:05,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:05,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 81 [2024-11-09 15:01:05,103 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) [2024-11-09 15:01:05,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:05,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 81 [2024-11-09 15:01:05,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:05,237 INFO L124 PetriNetUnfolderBase]: 162/399 cut-off events. [2024-11-09 15:01:05,237 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-09 15:01:05,238 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. [2024-11-09 15:01:05,239 INFO L140 encePairwiseOnDemand]: 73/81 looper letters, 69 selfloop transitions, 4 changer transitions 4/100 dead transitions. [2024-11-09 15:01:05,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 100 transitions, 390 flow [2024-11-09 15:01:05,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-11-09 15:01:05,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6707818930041153 [2024-11-09 15:01:05,241 INFO L175 Difference]: Start difference. First operand has 75 places, 75 transitions, 190 flow. Second operand 3 states and 163 transitions. [2024-11-09 15:01:05,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 100 transitions, 390 flow [2024-11-09 15:01:05,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 100 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:05,247 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 171 flow [2024-11-09 15:01:05,248 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} [2024-11-09 15:01:05,249 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -2 predicate places. [2024-11-09 15:01:05,249 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 171 flow [2024-11-09 15:01:05,249 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) [2024-11-09 15:01:05,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:05,249 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:05,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:01:05,250 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)] === [2024-11-09 15:01:05,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:05,251 INFO L85 PathProgramCache]: Analyzing trace with hash -2121395888, now seen corresponding path program 1 times [2024-11-09 15:01:05,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:05,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927666110] [2024-11-09 15:01:05,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:05,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:05,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927666110] [2024-11-09 15:01:05,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927666110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:05,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814116791] [2024-11-09 15:01:05,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:05,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:05,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:05,384 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) [2024-11-09 15:01:05,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:01:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:05,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:01:05,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:05,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:01:05,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814116791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:05,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:01:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 15:01:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220124474] [2024-11-09 15:01:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:05,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:05,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:05,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:01:05,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-09 15:01:05,592 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) [2024-11-09 15:01:05,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:05,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-09 15:01:05,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:05,736 INFO L124 PetriNetUnfolderBase]: 132/314 cut-off events. [2024-11-09 15:01:05,737 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-09 15:01:05,737 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. [2024-11-09 15:01:05,739 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 42 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2024-11-09 15:01:05,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 261 flow [2024-11-09 15:01:05,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-09 15:01:05,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2024-11-09 15:01:05,741 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 171 flow. Second operand 4 states and 148 transitions. [2024-11-09 15:01:05,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 261 flow [2024-11-09 15:01:05,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:01:05,767 INFO L231 Difference]: Finished difference. Result has 66 places, 64 transitions, 173 flow [2024-11-09 15:01:05,767 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} [2024-11-09 15:01:05,768 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, -6 predicate places. [2024-11-09 15:01:05,768 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 64 transitions, 173 flow [2024-11-09 15:01:05,769 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) [2024-11-09 15:01:05,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:05,769 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:05,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:01:05,974 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 [2024-11-09 15:01:05,975 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)] === [2024-11-09 15:01:05,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:05,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1338762554, now seen corresponding path program 1 times [2024-11-09 15:01:05,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:05,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668605438] [2024-11-09 15:01:05,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:05,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:06,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:06,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668605438] [2024-11-09 15:01:06,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668605438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:06,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399339928] [2024-11-09 15:01:06,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:06,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:06,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:06,100 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) [2024-11-09 15:01:06,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:01:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:06,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:01:06,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:06,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:06,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:06,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399339928] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:06,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:06,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:01:06,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557753825] [2024-11-09 15:01:06,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:06,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:01:06,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:06,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:01:06,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:01:06,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-09 15:01:06,393 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) [2024-11-09 15:01:06,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:06,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-09 15:01:06,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:06,622 INFO L124 PetriNetUnfolderBase]: 134/338 cut-off events. [2024-11-09 15:01:06,622 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-09 15:01:06,623 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. [2024-11-09 15:01:06,624 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 51 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2024-11-09 15:01:06,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 76 transitions, 337 flow [2024-11-09 15:01:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:01:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:01:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 239 transitions. [2024-11-09 15:01:06,626 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42151675485008816 [2024-11-09 15:01:06,626 INFO L175 Difference]: Start difference. First operand has 66 places, 64 transitions, 173 flow. Second operand 7 states and 239 transitions. [2024-11-09 15:01:06,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 76 transitions, 337 flow [2024-11-09 15:01:06,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 76 transitions, 315 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:01:06,629 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 226 flow [2024-11-09 15:01:06,629 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} [2024-11-09 15:01:06,630 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2024-11-09 15:01:06,630 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 226 flow [2024-11-09 15:01:06,630 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) [2024-11-09 15:01:06,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:06,631 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:06,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:01:06,831 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 [2024-11-09 15:01:06,832 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)] === [2024-11-09 15:01:06,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:06,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1579681836, now seen corresponding path program 1 times [2024-11-09 15:01:06,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:06,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718750444] [2024-11-09 15:01:06,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:06,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:01:06,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:06,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718750444] [2024-11-09 15:01:06,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718750444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:06,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:06,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:01:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005105479] [2024-11-09 15:01:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:06,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:06,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:06,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:01:06,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 81 [2024-11-09 15:01:06,947 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) [2024-11-09 15:01:06,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:06,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 81 [2024-11-09 15:01:06,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:07,100 INFO L124 PetriNetUnfolderBase]: 133/333 cut-off events. [2024-11-09 15:01:07,101 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-11-09 15:01:07,101 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. [2024-11-09 15:01:07,103 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 43 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2024-11-09 15:01:07,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 69 transitions, 317 flow [2024-11-09 15:01:07,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:07,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-11-09 15:01:07,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44135802469135804 [2024-11-09 15:01:07,105 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 226 flow. Second operand 4 states and 143 transitions. [2024-11-09 15:01:07,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 69 transitions, 317 flow [2024-11-09 15:01:07,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 69 transitions, 301 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:07,111 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 217 flow [2024-11-09 15:01:07,111 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} [2024-11-09 15:01:07,112 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2024-11-09 15:01:07,112 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 217 flow [2024-11-09 15:01:07,112 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) [2024-11-09 15:01:07,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:07,113 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] [2024-11-09 15:01:07,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:01:07,115 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)] === [2024-11-09 15:01:07,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1599565811, now seen corresponding path program 1 times [2024-11-09 15:01:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156061114] [2024-11-09 15:01:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:07,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:01:07,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:07,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156061114] [2024-11-09 15:01:07,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156061114] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:07,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138412538] [2024-11-09 15:01:07,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:07,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:07,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:07,261 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) [2024-11-09 15:01:07,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:01:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:07,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:01:07,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:07,478 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:01:07,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:01:07,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138412538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:07,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:07,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 15:01:07,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73110535] [2024-11-09 15:01:07,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:07,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:01:07,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:07,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:01:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:01:07,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 81 [2024-11-09 15:01:07,654 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) [2024-11-09 15:01:07,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:07,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 81 [2024-11-09 15:01:07,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:07,867 INFO L124 PetriNetUnfolderBase]: 132/328 cut-off events. [2024-11-09 15:01:07,867 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-09 15:01:07,868 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. [2024-11-09 15:01:07,870 INFO L140 encePairwiseOnDemand]: 74/81 looper letters, 47 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-11-09 15:01:07,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 71 transitions, 328 flow [2024-11-09 15:01:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:01:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:01:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 196 transitions. [2024-11-09 15:01:07,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.345679012345679 [2024-11-09 15:01:07,872 INFO L175 Difference]: Start difference. First operand has 75 places, 68 transitions, 217 flow. Second operand 7 states and 196 transitions. [2024-11-09 15:01:07,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 71 transitions, 328 flow [2024-11-09 15:01:07,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 71 transitions, 318 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:01:07,875 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 231 flow [2024-11-09 15:01:07,875 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} [2024-11-09 15:01:07,876 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 8 predicate places. [2024-11-09 15:01:07,876 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 231 flow [2024-11-09 15:01:07,876 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) [2024-11-09 15:01:07,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:07,877 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-09 15:01:07,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:01:08,077 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 [2024-11-09 15:01:08,078 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)] === [2024-11-09 15:01:08,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:08,079 INFO L85 PathProgramCache]: Analyzing trace with hash 2021636235, now seen corresponding path program 1 times [2024-11-09 15:01:08,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:08,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513854301] [2024-11-09 15:01:08,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 15:01:08,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:08,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513854301] [2024-11-09 15:01:08,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513854301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:08,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:08,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:01:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208898147] [2024-11-09 15:01:08,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:08,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:08,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:08,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:08,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:01:08,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 81 [2024-11-09 15:01:08,187 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) [2024-11-09 15:01:08,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:08,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 81 [2024-11-09 15:01:08,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:08,323 INFO L124 PetriNetUnfolderBase]: 132/327 cut-off events. [2024-11-09 15:01:08,323 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-09 15:01:08,324 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. [2024-11-09 15:01:08,325 INFO L140 encePairwiseOnDemand]: 76/81 looper letters, 43 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2024-11-09 15:01:08,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 68 transitions, 333 flow [2024-11-09 15:01:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2024-11-09 15:01:08,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-11-09 15:01:08,327 INFO L175 Difference]: Start difference. First operand has 80 places, 68 transitions, 231 flow. Second operand 4 states and 147 transitions. [2024-11-09 15:01:08,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 68 transitions, 333 flow [2024-11-09 15:01:08,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 320 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 15:01:08,330 INFO L231 Difference]: Finished difference. Result has 77 places, 68 transitions, 242 flow [2024-11-09 15:01:08,330 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} [2024-11-09 15:01:08,331 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2024-11-09 15:01:08,332 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 68 transitions, 242 flow [2024-11-09 15:01:08,332 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) [2024-11-09 15:01:08,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:08,333 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-09 15:01:08,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:01:08,333 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)] === [2024-11-09 15:01:08,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:08,334 INFO L85 PathProgramCache]: Analyzing trace with hash 112126630, now seen corresponding path program 2 times [2024-11-09 15:01:08,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:08,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585587331] [2024-11-09 15:01:08,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:08,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 15:01:08,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:08,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585587331] [2024-11-09 15:01:08,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585587331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:08,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137480443] [2024-11-09 15:01:08,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:01:08,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:08,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:08,457 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) [2024-11-09 15:01:08,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:01:08,552 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:01:08,552 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:01:08,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:01:08,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 15:01:08,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 15:01:08,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137480443] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:08,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:08,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 5 [2024-11-09 15:01:08,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43519429] [2024-11-09 15:01:08,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:08,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:01:08,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:08,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:01:08,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:01:08,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 81 [2024-11-09 15:01:08,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 68 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:01:08,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:08,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 81 [2024-11-09 15:01:08,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:08,829 INFO L124 PetriNetUnfolderBase]: 132/326 cut-off events. [2024-11-09 15:01:08,829 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2024-11-09 15:01:08,830 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. [2024-11-09 15:01:08,831 INFO L140 encePairwiseOnDemand]: 75/81 looper letters, 46 selfloop transitions, 9 changer transitions 0/69 dead transitions. [2024-11-09 15:01:08,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 69 transitions, 350 flow [2024-11-09 15:01:08,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-09 15:01:08,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4012345679012346 [2024-11-09 15:01:08,833 INFO L175 Difference]: Start difference. First operand has 77 places, 68 transitions, 242 flow. Second operand 4 states and 130 transitions. [2024-11-09 15:01:08,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 69 transitions, 350 flow [2024-11-09 15:01:08,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 330 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:01:08,835 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 247 flow [2024-11-09 15:01:08,835 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} [2024-11-09 15:01:08,836 INFO L277 CegarLoopForPetriNet]: 72 programPoint places, 4 predicate places. [2024-11-09 15:01:08,836 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 247 flow [2024-11-09 15:01:08,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:01:08,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:08,837 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] [2024-11-09 15:01:08,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:01:09,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:09,038 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)] === [2024-11-09 15:01:09,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:09,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1264396276, now seen corresponding path program 2 times [2024-11-09 15:01:09,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:09,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89749948] [2024-11-09 15:01:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:09,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:01:09,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:01:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:01:09,109 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:01:09,111 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 15:01:09,113 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-09 15:01:09,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 15:01:09,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 15:01:09,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-09 15:01:09,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 15:01:09,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 15:01:09,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 15:01:09,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 15:01:09,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:01:09,117 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:09,120 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 15:01:09,120 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 15:01:09,153 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 15:01:09,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 120 transitions, 256 flow [2024-11-09 15:01:09,181 INFO L124 PetriNetUnfolderBase]: 23/147 cut-off events. [2024-11-09 15:01:09,181 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 15:01:09,182 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. [2024-11-09 15:01:09,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 120 transitions, 256 flow [2024-11-09 15:01:09,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 120 transitions, 256 flow [2024-11-09 15:01:09,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:01:09,185 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;@609c69dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:01:09,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:01:09,186 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:01:09,187 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 15:01:09,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:01:09,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:09,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:01:09,188 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)] === [2024-11-09 15:01:09,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:09,188 INFO L85 PathProgramCache]: Analyzing trace with hash 613186740, now seen corresponding path program 1 times [2024-11-09 15:01:09,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:09,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903085793] [2024-11-09 15:01:09,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:09,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:09,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:09,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903085793] [2024-11-09 15:01:09,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903085793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:09,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:09,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:01:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35749492] [2024-11-09 15:01:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:09,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:09,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:09,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-09 15:01:09,250 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) [2024-11-09 15:01:09,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:09,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-09 15:01:09,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:10,744 INFO L124 PetriNetUnfolderBase]: 11368/17474 cut-off events. [2024-11-09 15:01:10,744 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-09 15:01:10,772 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. [2024-11-09 15:01:10,847 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 76 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2024-11-09 15:01:10,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 111 transitions, 394 flow [2024-11-09 15:01:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:10,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:10,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2024-11-09 15:01:10,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-09 15:01:10,849 INFO L175 Difference]: Start difference. First operand has 103 places, 120 transitions, 256 flow. Second operand 3 states and 186 transitions. [2024-11-09 15:01:10,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 111 transitions, 394 flow [2024-11-09 15:01:10,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 111 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:01:10,852 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 242 flow [2024-11-09 15:01:10,852 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} [2024-11-09 15:01:10,853 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 0 predicate places. [2024-11-09 15:01:10,853 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 242 flow [2024-11-09 15:01:10,853 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) [2024-11-09 15:01:10,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:10,853 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:01:10,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:01:10,854 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)] === [2024-11-09 15:01:10,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1828920405, now seen corresponding path program 1 times [2024-11-09 15:01:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:10,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355832406] [2024-11-09 15:01:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:10,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355832406] [2024-11-09 15:01:10,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355832406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:10,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:10,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:01:10,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334909129] [2024-11-09 15:01:10,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:10,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:10,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:10,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:10,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-09 15:01:10,977 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) [2024-11-09 15:01:10,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:10,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-09 15:01:10,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:12,656 INFO L124 PetriNetUnfolderBase]: 11368/17472 cut-off events. [2024-11-09 15:01:12,656 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-09 15:01:12,690 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. [2024-11-09 15:01:12,772 INFO L140 encePairwiseOnDemand]: 116/120 looper letters, 74 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-11-09 15:01:12,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 109 transitions, 390 flow [2024-11-09 15:01:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:12,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-11-09 15:01:12,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664 [2024-11-09 15:01:12,774 INFO L175 Difference]: Start difference. First operand has 103 places, 111 transitions, 242 flow. Second operand 3 states and 177 transitions. [2024-11-09 15:01:12,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 109 transitions, 390 flow [2024-11-09 15:01:12,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 109 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:12,778 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 238 flow [2024-11-09 15:01:12,778 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} [2024-11-09 15:01:12,779 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, -2 predicate places. [2024-11-09 15:01:12,779 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 238 flow [2024-11-09 15:01:12,779 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) [2024-11-09 15:01:12,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:12,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:12,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:01:12,780 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)] === [2024-11-09 15:01:12,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:12,780 INFO L85 PathProgramCache]: Analyzing trace with hash 950905033, now seen corresponding path program 1 times [2024-11-09 15:01:12,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:12,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304338533] [2024-11-09 15:01:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:12,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:12,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:12,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304338533] [2024-11-09 15:01:12,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304338533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:12,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:12,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:01:12,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614586578] [2024-11-09 15:01:12,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:12,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:12,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:12,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 120 [2024-11-09 15:01:12,845 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) [2024-11-09 15:01:12,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:12,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 120 [2024-11-09 15:01:12,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:13,991 INFO L124 PetriNetUnfolderBase]: 11369/17488 cut-off events. [2024-11-09 15:01:13,991 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2024-11-09 15:01:14,013 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. [2024-11-09 15:01:14,074 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 80 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2024-11-09 15:01:14,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 113 transitions, 414 flow [2024-11-09 15:01:14,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:14,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 187 transitions. [2024-11-09 15:01:14,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5194444444444445 [2024-11-09 15:01:14,076 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 238 flow. Second operand 3 states and 187 transitions. [2024-11-09 15:01:14,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 113 transitions, 414 flow [2024-11-09 15:01:14,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 113 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:14,079 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 255 flow [2024-11-09 15:01:14,079 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} [2024-11-09 15:01:14,080 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, -1 predicate places. [2024-11-09 15:01:14,080 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 255 flow [2024-11-09 15:01:14,081 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) [2024-11-09 15:01:14,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:14,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:14,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:01:14,082 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)] === [2024-11-09 15:01:14,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:14,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1708967674, now seen corresponding path program 1 times [2024-11-09 15:01:14,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:14,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142912616] [2024-11-09 15:01:14,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:14,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:14,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:14,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142912616] [2024-11-09 15:01:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142912616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:14,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:14,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:01:14,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292442698] [2024-11-09 15:01:14,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:14,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:14,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:14,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:14,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:01:14,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 120 [2024-11-09 15:01:14,285 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) [2024-11-09 15:01:14,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:14,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 120 [2024-11-09 15:01:14,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:15,495 INFO L124 PetriNetUnfolderBase]: 11369/17486 cut-off events. [2024-11-09 15:01:15,495 INFO L125 PetriNetUnfolderBase]: For 222/222 co-relation queries the response was YES. [2024-11-09 15:01:15,524 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. [2024-11-09 15:01:15,598 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 83 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2024-11-09 15:01:15,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 114 transitions, 435 flow [2024-11-09 15:01:15,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 213 transitions. [2024-11-09 15:01:15,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44375 [2024-11-09 15:01:15,600 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 255 flow. Second operand 4 states and 213 transitions. [2024-11-09 15:01:15,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 114 transitions, 435 flow [2024-11-09 15:01:15,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 114 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:01:15,604 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 273 flow [2024-11-09 15:01:15,604 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} [2024-11-09 15:01:15,605 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 3 predicate places. [2024-11-09 15:01:15,605 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 273 flow [2024-11-09 15:01:15,605 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) [2024-11-09 15:01:15,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:15,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:15,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 15:01:15,606 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)] === [2024-11-09 15:01:15,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:15,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1630875419, now seen corresponding path program 1 times [2024-11-09 15:01:15,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:15,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157254497] [2024-11-09 15:01:15,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:15,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:15,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:15,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157254497] [2024-11-09 15:01:15,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157254497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:15,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:15,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:01:15,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832632329] [2024-11-09 15:01:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:15,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:15,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:15,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:15,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-09 15:01:15,712 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) [2024-11-09 15:01:15,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:15,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-09 15:01:15,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:17,038 INFO L124 PetriNetUnfolderBase]: 13068/20170 cut-off events. [2024-11-09 15:01:17,038 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-09 15:01:17,070 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. [2024-11-09 15:01:17,143 INFO L140 encePairwiseOnDemand]: 111/120 looper letters, 141 selfloop transitions, 5 changer transitions 1/177 dead transitions. [2024-11-09 15:01:17,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 177 transitions, 703 flow [2024-11-09 15:01:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-09 15:01:17,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-09 15:01:17,145 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 273 flow. Second operand 3 states and 250 transitions. [2024-11-09 15:01:17,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 177 transitions, 703 flow [2024-11-09 15:01:17,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 177 transitions, 697 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:17,149 INFO L231 Difference]: Finished difference. Result has 107 places, 113 transitions, 296 flow [2024-11-09 15:01:17,149 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} [2024-11-09 15:01:17,149 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 4 predicate places. [2024-11-09 15:01:17,150 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 113 transitions, 296 flow [2024-11-09 15:01:17,150 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) [2024-11-09 15:01:17,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:17,150 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:17,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:01:17,150 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)] === [2024-11-09 15:01:17,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:17,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1814718008, now seen corresponding path program 1 times [2024-11-09 15:01:17,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:17,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001928683] [2024-11-09 15:01:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:17,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:17,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001928683] [2024-11-09 15:01:17,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001928683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705459574] [2024-11-09 15:01:17,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:17,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:17,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:17,248 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) [2024-11-09 15:01:17,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:01:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:17,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:01:17,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:17,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:17,383 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:01:17,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705459574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:17,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:01:17,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 15:01:17,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551314105] [2024-11-09 15:01:17,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:17,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:17,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:17,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:01:17,404 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-09 15:01:17,404 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) [2024-11-09 15:01:17,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:17,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-09 15:01:17,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:18,556 INFO L124 PetriNetUnfolderBase]: 9728/15043 cut-off events. [2024-11-09 15:01:18,556 INFO L125 PetriNetUnfolderBase]: For 3347/4797 co-relation queries the response was YES. [2024-11-09 15:01:18,581 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. [2024-11-09 15:01:18,638 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 78 selfloop transitions, 7 changer transitions 0/111 dead transitions. [2024-11-09 15:01:18,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 111 transitions, 458 flow [2024-11-09 15:01:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-11-09 15:01:18,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42291666666666666 [2024-11-09 15:01:18,641 INFO L175 Difference]: Start difference. First operand has 107 places, 113 transitions, 296 flow. Second operand 4 states and 203 transitions. [2024-11-09 15:01:18,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 111 transitions, 458 flow [2024-11-09 15:01:18,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 111 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:01:18,650 INFO L231 Difference]: Finished difference. Result has 107 places, 111 transitions, 297 flow [2024-11-09 15:01:18,651 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} [2024-11-09 15:01:18,651 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 4 predicate places. [2024-11-09 15:01:18,652 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 111 transitions, 297 flow [2024-11-09 15:01:18,652 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) [2024-11-09 15:01:18,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:18,652 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:18,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:01:18,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 15:01:18,853 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)] === [2024-11-09 15:01:18,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -421682746, now seen corresponding path program 1 times [2024-11-09 15:01:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:18,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514675868] [2024-11-09 15:01:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514675868] [2024-11-09 15:01:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514675868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548140047] [2024-11-09 15:01:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:18,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:18,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:18,969 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) [2024-11-09 15:01:18,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:01:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:19,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:01:19,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:19,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:19,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548140047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:19,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:19,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 15:01:19,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993909597] [2024-11-09 15:01:19,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:19,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:01:19,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:01:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:01:19,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-09 15:01:19,191 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) [2024-11-09 15:01:19,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:19,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-09 15:01:19,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:20,318 INFO L124 PetriNetUnfolderBase]: 9730/15067 cut-off events. [2024-11-09 15:01:20,318 INFO L125 PetriNetUnfolderBase]: For 1857/3307 co-relation queries the response was YES. [2024-11-09 15:01:20,350 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. [2024-11-09 15:01:20,411 INFO L140 encePairwiseOnDemand]: 113/120 looper letters, 87 selfloop transitions, 10 changer transitions 0/123 dead transitions. [2024-11-09 15:01:20,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 123 transitions, 535 flow [2024-11-09 15:01:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:01:20,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:01:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 309 transitions. [2024-11-09 15:01:20,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3678571428571429 [2024-11-09 15:01:20,413 INFO L175 Difference]: Start difference. First operand has 107 places, 111 transitions, 297 flow. Second operand 7 states and 309 transitions. [2024-11-09 15:01:20,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 123 transitions, 535 flow [2024-11-09 15:01:20,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 123 transitions, 513 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:01:20,417 INFO L231 Difference]: Finished difference. Result has 114 places, 116 transitions, 352 flow [2024-11-09 15:01:20,417 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} [2024-11-09 15:01:20,418 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 11 predicate places. [2024-11-09 15:01:20,418 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 116 transitions, 352 flow [2024-11-09 15:01:20,418 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) [2024-11-09 15:01:20,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:20,419 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:20,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 15:01:20,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:20,621 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)] === [2024-11-09 15:01:20,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:20,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1439248214, now seen corresponding path program 1 times [2024-11-09 15:01:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:20,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129859040] [2024-11-09 15:01:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:20,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:20,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:20,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129859040] [2024-11-09 15:01:20,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129859040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:20,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660758651] [2024-11-09 15:01:20,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:20,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:20,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:20,747 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) [2024-11-09 15:01:20,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:01:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:20,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:01:20,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:01:20,896 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:01:20,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660758651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:20,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:01:20,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2024-11-09 15:01:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189928795] [2024-11-09 15:01:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:20,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:20,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:20,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:01:20,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 120 [2024-11-09 15:01:20,921 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) [2024-11-09 15:01:20,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:20,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 120 [2024-11-09 15:01:20,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:21,894 INFO L124 PetriNetUnfolderBase]: 9729/15062 cut-off events. [2024-11-09 15:01:21,894 INFO L125 PetriNetUnfolderBase]: For 1874/3324 co-relation queries the response was YES. [2024-11-09 15:01:21,922 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. [2024-11-09 15:01:21,956 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 79 selfloop transitions, 6 changer transitions 0/116 dead transitions. [2024-11-09 15:01:21,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 116 transitions, 514 flow [2024-11-09 15:01:21,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:21,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-09 15:01:21,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-11-09 15:01:21,958 INFO L175 Difference]: Start difference. First operand has 114 places, 116 transitions, 352 flow. Second operand 4 states and 198 transitions. [2024-11-09 15:01:21,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 116 transitions, 514 flow [2024-11-09 15:01:21,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 116 transitions, 498 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:21,963 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 342 flow [2024-11-09 15:01:21,963 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} [2024-11-09 15:01:21,963 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 13 predicate places. [2024-11-09 15:01:21,963 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 342 flow [2024-11-09 15:01:21,964 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) [2024-11-09 15:01:21,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:21,964 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] [2024-11-09 15:01:21,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:01:22,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:22,169 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)] === [2024-11-09 15:01:22,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:22,169 INFO L85 PathProgramCache]: Analyzing trace with hash -310756567, now seen corresponding path program 1 times [2024-11-09 15:01:22,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:22,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108326641] [2024-11-09 15:01:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 15:01:22,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108326641] [2024-11-09 15:01:22,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108326641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:22,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871641032] [2024-11-09 15:01:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:22,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:22,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:22,243 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:01:22,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 15:01:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:22,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 15:01:22,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:01:22,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 15:01:22,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871641032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:22,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:22,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-11-09 15:01:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094799688] [2024-11-09 15:01:22,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:22,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 15:01:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:22,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 15:01:22,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-09 15:01:22,630 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 120 [2024-11-09 15:01:22,631 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) [2024-11-09 15:01:22,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:22,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 120 [2024-11-09 15:01:22,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:24,381 INFO L124 PetriNetUnfolderBase]: 11398/17701 cut-off events. [2024-11-09 15:01:24,381 INFO L125 PetriNetUnfolderBase]: For 2430/2430 co-relation queries the response was YES. [2024-11-09 15:01:24,444 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. [2024-11-09 15:01:24,679 INFO L140 encePairwiseOnDemand]: 107/120 looper letters, 200 selfloop transitions, 13 changer transitions 2/237 dead transitions. [2024-11-09 15:01:24,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 237 transitions, 1010 flow [2024-11-09 15:01:24,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:01:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:01:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 406 transitions. [2024-11-09 15:01:24,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37592592592592594 [2024-11-09 15:01:24,681 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 342 flow. Second operand 9 states and 406 transitions. [2024-11-09 15:01:24,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 237 transitions, 1010 flow [2024-11-09 15:01:24,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 237 transitions, 1000 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:01:24,688 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 355 flow [2024-11-09 15:01:24,689 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} [2024-11-09 15:01:24,689 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 18 predicate places. [2024-11-09 15:01:24,689 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 355 flow [2024-11-09 15:01:24,690 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) [2024-11-09 15:01:24,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:24,690 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-09 15:01:24,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 15:01:24,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 15:01:24,895 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)] === [2024-11-09 15:01:24,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:24,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1723811837, now seen corresponding path program 1 times [2024-11-09 15:01:24,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:24,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050416048] [2024-11-09 15:01:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:24,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 15:01:24,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:24,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050416048] [2024-11-09 15:01:24,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050416048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:24,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:24,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:01:24,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269300960] [2024-11-09 15:01:24,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:24,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:01:24,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:24,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:01:24,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:01:24,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 120 [2024-11-09 15:01:24,972 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) [2024-11-09 15:01:24,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:24,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 120 [2024-11-09 15:01:24,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:25,990 INFO L124 PetriNetUnfolderBase]: 9728/15049 cut-off events. [2024-11-09 15:01:25,990 INFO L125 PetriNetUnfolderBase]: For 3626/4351 co-relation queries the response was YES. [2024-11-09 15:01:26,016 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. [2024-11-09 15:01:26,054 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 79 selfloop transitions, 9 changer transitions 0/113 dead transitions. [2024-11-09 15:01:26,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 113 transitions, 529 flow [2024-11-09 15:01:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 202 transitions. [2024-11-09 15:01:26,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42083333333333334 [2024-11-09 15:01:26,056 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 355 flow. Second operand 4 states and 202 transitions. [2024-11-09 15:01:26,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 113 transitions, 529 flow [2024-11-09 15:01:26,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 113 transitions, 512 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-09 15:01:26,060 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 362 flow [2024-11-09 15:01:26,060 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} [2024-11-09 15:01:26,060 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 14 predicate places. [2024-11-09 15:01:26,061 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 362 flow [2024-11-09 15:01:26,061 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) [2024-11-09 15:01:26,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:26,061 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-09 15:01:26,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 15:01:26,063 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)] === [2024-11-09 15:01:26,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1431189670, now seen corresponding path program 2 times [2024-11-09 15:01:26,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:26,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247009881] [2024-11-09 15:01:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:26,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 15:01:26,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247009881] [2024-11-09 15:01:26,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247009881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:01:26,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886893986] [2024-11-09 15:01:26,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:01:26,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:26,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:01:26,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:01:26,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 15:01:26,516 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:01:26,517 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:01:26,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:01:26,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:01:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 15:01:26,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:01:26,637 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 15:01:26,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886893986] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:01:26,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:01:26,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 5 [2024-11-09 15:01:26,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485121277] [2024-11-09 15:01:26,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:01:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:01:26,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:26,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:01:26,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:01:26,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 120 [2024-11-09 15:01:26,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 362 flow. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-11-09 15:01:26,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:26,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 120 [2024-11-09 15:01:26,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:27,900 INFO L124 PetriNetUnfolderBase]: 9728/15048 cut-off events. [2024-11-09 15:01:27,901 INFO L125 PetriNetUnfolderBase]: For 3496/4221 co-relation queries the response was YES. [2024-11-09 15:01:27,926 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. [2024-11-09 15:01:27,970 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 82 selfloop transitions, 9 changer transitions 0/114 dead transitions. [2024-11-09 15:01:27,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 114 transitions, 542 flow [2024-11-09 15:01:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:01:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:01:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-09 15:01:27,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3854166666666667 [2024-11-09 15:01:27,973 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 362 flow. Second operand 4 states and 185 transitions. [2024-11-09 15:01:27,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 114 transitions, 542 flow [2024-11-09 15:01:27,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 522 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:01:27,980 INFO L231 Difference]: Finished difference. Result has 116 places, 113 transitions, 367 flow [2024-11-09 15:01:27,980 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} [2024-11-09 15:01:27,980 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 13 predicate places. [2024-11-09 15:01:27,980 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 113 transitions, 367 flow [2024-11-09 15:01:27,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-11-09 15:01:27,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:27,981 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] [2024-11-09 15:01:27,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 15:01:28,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:01:28,182 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)] === [2024-11-09 15:01:28,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1664564178, now seen corresponding path program 1 times [2024-11-09 15:01:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409021342] [2024-11-09 15:01:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 15:01:28,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:28,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409021342] [2024-11-09 15:01:28,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409021342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:28,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:28,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:01:28,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208343679] [2024-11-09 15:01:28,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:28,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:28,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:28,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:28,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:28,259 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 120 [2024-11-09 15:01:28,259 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) [2024-11-09 15:01:28,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:28,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 120 [2024-11-09 15:01:28,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:01:29,622 INFO L124 PetriNetUnfolderBase]: 9810/15124 cut-off events. [2024-11-09 15:01:29,622 INFO L125 PetriNetUnfolderBase]: For 1299/1299 co-relation queries the response was YES. [2024-11-09 15:01:29,644 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. [2024-11-09 15:01:29,679 INFO L140 encePairwiseOnDemand]: 112/120 looper letters, 131 selfloop transitions, 8 changer transitions 1/171 dead transitions. [2024-11-09 15:01:29,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 171 transitions, 759 flow [2024-11-09 15:01:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:01:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:01:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 237 transitions. [2024-11-09 15:01:29,680 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-11-09 15:01:29,680 INFO L175 Difference]: Start difference. First operand has 116 places, 113 transitions, 367 flow. Second operand 3 states and 237 transitions. [2024-11-09 15:01:29,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 171 transitions, 759 flow [2024-11-09 15:01:29,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 171 transitions, 748 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 15:01:29,690 INFO L231 Difference]: Finished difference. Result has 115 places, 112 transitions, 375 flow [2024-11-09 15:01:29,691 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} [2024-11-09 15:01:29,691 INFO L277 CegarLoopForPetriNet]: 103 programPoint places, 12 predicate places. [2024-11-09 15:01:29,691 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 112 transitions, 375 flow [2024-11-09 15:01:29,691 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) [2024-11-09 15:01:29,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:29,691 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] [2024-11-09 15:01:29,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 15:01:29,692 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)] === [2024-11-09 15:01:29,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:29,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1918320249, now seen corresponding path program 1 times [2024-11-09 15:01:29,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:29,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277292913] [2024-11-09 15:01:29,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:29,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:01:29,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:01:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:01:29,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:01:29,735 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 15:01:29,735 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-09 15:01:29,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-09 15:01:29,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-09 15:01:29,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-09 15:01:29,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-09 15:01:29,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-09 15:01:29,737 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-09 15:01:29,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 15:01:29,737 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:01:29,738 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 15:01:29,738 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 15:01:29,793 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:01:29,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 159 transitions, 345 flow [2024-11-09 15:01:29,812 INFO L124 PetriNetUnfolderBase]: 37/228 cut-off events. [2024-11-09 15:01:29,812 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 15:01:29,813 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. [2024-11-09 15:01:29,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 159 transitions, 345 flow [2024-11-09 15:01:29,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 159 transitions, 345 flow [2024-11-09 15:01:29,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:01:29,816 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;@609c69dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:01:29,816 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 15:01:29,817 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:01:29,817 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 15:01:29,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:01:29,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:01:29,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:01:29,818 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)] === [2024-11-09 15:01:29,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:01:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 764921235, now seen corresponding path program 1 times [2024-11-09 15:01:29,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:01:29,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531607296] [2024-11-09 15:01:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:01:29,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:01:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:01:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:01:29,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:01:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531607296] [2024-11-09 15:01:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531607296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:01:29,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:01:29,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:01:29,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469366842] [2024-11-09 15:01:29,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:01:29,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:01:29,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:01:29,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:01:29,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:01:29,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 159 [2024-11-09 15:01:29,869 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) [2024-11-09 15:01:29,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:01:29,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 159 [2024-11-09 15:01:29,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand