./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:02:02,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:02:02,517 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:02:02,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:02:02,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:02:02,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:02:02,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:02:02,540 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:02:02,541 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:02:02,541 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:02:02,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:02:02,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:02:02,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:02:02,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:02:02,546 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:02:02,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:02:02,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:02:02,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:02:02,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:02:02,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:02:02,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:02:02,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:02:02,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:02:02,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:02:02,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:02:02,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:02:02,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:02:02,551 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:02:02,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:02:02,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:02:02,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:02:02,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:02:02,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:02:02,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:02:02,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:02:02,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:02:02,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:02:02,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:02:02,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:02:02,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:02:02,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:02:02,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:02:02,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:02:02,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:02:02,559 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2024-10-12 00:02:02,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:02:02,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:02:02,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:02:02,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:02:02,837 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:02:02,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-10-12 00:02:04,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:02:04,508 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:02:04,509 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2024-10-12 00:02:04,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f71d0c960/cce5e1a709cc430681922e20b91e2724/FLAGf5480bf5d [2024-10-12 00:02:04,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f71d0c960/cce5e1a709cc430681922e20b91e2724 [2024-10-12 00:02:04,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:02:04,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:02:04,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:02:04,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:02:04,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:02:04,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:04,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a5e29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04, skipping insertion in model container [2024-10-12 00:02:04,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:04,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:02:04,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:02:04,857 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:02:04,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:02:04,953 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:02:04,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04 WrapperNode [2024-10-12 00:02:04,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:02:04,955 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:02:04,955 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:02:04,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:02:04,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,054 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-10-12 00:02:05,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:02:05,055 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:02:05,055 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:02:05,056 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:02:05,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,103 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-10-12 00:02:05,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:02:05,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:02:05,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:02:05,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:02:05,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (1/1) ... [2024-10-12 00:02:05,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:02:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:05,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:02:05,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:02:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:02:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:02:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 00:02:05,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 00:02:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:02:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 00:02:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 00:02:05,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:02:05,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:02:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:02:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:02:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-12 00:02:05,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-12 00:02:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:02:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 00:02:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 00:02:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 00:02:05,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:02:05,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:02:05,246 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:02:05,393 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:02:05,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:02:06,201 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:02:06,202 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:02:06,767 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:02:06,768 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-12 00:02:06,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:02:06 BoogieIcfgContainer [2024-10-12 00:02:06,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:02:06,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:02:06,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:02:06,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:02:06,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:02:04" (1/3) ... [2024-10-12 00:02:06,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24399f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:02:06, skipping insertion in model container [2024-10-12 00:02:06,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:04" (2/3) ... [2024-10-12 00:02:06,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24399f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:02:06, skipping insertion in model container [2024-10-12 00:02:06,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:02:06" (3/3) ... [2024-10-12 00:02:06,779 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2024-10-12 00:02:06,799 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:02:06,799 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-12 00:02:06,799 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:02:06,882 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-12 00:02:06,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-10-12 00:02:06,994 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-10-12 00:02:06,994 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-12 00:02:06,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-10-12 00:02:07,000 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-10-12 00:02:07,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-10-12 00:02:07,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:02:07,024 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;@575a3cb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:02:07,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-10-12 00:02:07,028 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:02:07,028 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-10-12 00:02:07,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:02:07,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:07,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-10-12 00:02:07,030 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:07,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:07,035 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-10-12 00:02:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825302036] [2024-10-12 00:02:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:07,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:07,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825302036] [2024-10-12 00:02:07,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825302036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:07,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:07,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598547594] [2024-10-12 00:02:07,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:07,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:07,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:07,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:07,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:07,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:07,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 00:02:07,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:07,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:07,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:08,551 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-10-12 00:02:08,552 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-10-12 00:02:08,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-10-12 00:02:08,639 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-10-12 00:02:08,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-10-12 00:02:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-12 00:02:08,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-12 00:02:08,659 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-10-12 00:02:08,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-10-12 00:02:08,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-12 00:02:08,675 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-10-12 00:02:08,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-10-12 00:02:08,684 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-10-12 00:02:08,684 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-10-12 00:02:08,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 00:02:08,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:08,685 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-12 00:02:08,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:02:08,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-10-12 00:02:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355752127] [2024-10-12 00:02:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:08,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:08,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:08,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355752127] [2024-10-12 00:02:08,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355752127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:08,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:08,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:08,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980398650] [2024-10-12 00:02:08,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:08,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:08,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:08,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:08,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:08,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 00:02:08,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:08,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:08,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:09,847 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-10-12 00:02:09,849 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-12 00:02:09,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-10-12 00:02:09,919 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-10-12 00:02:09,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-10-12 00:02:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:09,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-12 00:02:09,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-12 00:02:09,925 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-10-12 00:02:09,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-10-12 00:02:09,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:09,931 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-10-12 00:02:09,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-10-12 00:02:09,932 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-10-12 00:02:09,932 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-10-12 00:02:09,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-10-12 00:02:09,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:09,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 00:02:09,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 00:02:09,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:09,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:09,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-10-12 00:02:09,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:09,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166626944] [2024-10-12 00:02:09,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:09,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:10,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:10,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166626944] [2024-10-12 00:02:10,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166626944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:10,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:10,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:10,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985960742] [2024-10-12 00:02:10,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:10,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:10,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:10,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:10,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:10,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-10-12 00:02:10,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:10,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:10,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:11,067 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-10-12 00:02:11,067 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-12 00:02:11,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-10-12 00:02:11,123 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-10-12 00:02:11,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-10-12 00:02:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:11,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:11,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-10-12 00:02:11,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-10-12 00:02:11,127 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-10-12 00:02:11,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-10-12 00:02:11,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:11,133 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-10-12 00:02:11,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-10-12 00:02:11,135 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-10-12 00:02:11,136 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-10-12 00:02:11,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-10-12 00:02:11,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:11,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 00:02:11,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 00:02:11,137 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:11,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:11,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-10-12 00:02:11,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:11,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378938331] [2024-10-12 00:02:11,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:11,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:11,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:11,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378938331] [2024-10-12 00:02:11,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378938331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:11,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:11,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:11,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621963888] [2024-10-12 00:02:11,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:11,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:11,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:11,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:11,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:11,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-12 00:02:11,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:11,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:11,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:12,293 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-10-12 00:02:12,294 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-12 00:02:12,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-10-12 00:02:12,361 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-10-12 00:02:12,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-10-12 00:02:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-12 00:02:12,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-12 00:02:12,365 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-10-12 00:02:12,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-10-12 00:02:12,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:12,371 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-10-12 00:02:12,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-10-12 00:02:12,372 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-12 00:02:12,373 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-10-12 00:02:12,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-12 00:02:12,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:12,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:02:12,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:02:12,374 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:12,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:12,376 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-10-12 00:02:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:12,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706865804] [2024-10-12 00:02:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:12,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:12,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:12,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706865804] [2024-10-12 00:02:12,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706865804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:12,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:12,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:12,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976555682] [2024-10-12 00:02:12,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:12,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:12,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:12,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:12,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:12,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:12,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-12 00:02:12,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:12,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:12,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:13,178 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-10-12 00:02:13,178 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-12 00:02:13,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-10-12 00:02:13,246 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-10-12 00:02:13,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-10-12 00:02:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:13,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-12 00:02:13,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-12 00:02:13,248 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-10-12 00:02:13,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-10-12 00:02:13,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:13,252 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-10-12 00:02:13,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-10-12 00:02:13,253 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-10-12 00:02:13,254 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-10-12 00:02:13,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-10-12 00:02:13,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:13,255 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:13,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:02:13,255 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:13,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-10-12 00:02:13,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:13,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581532911] [2024-10-12 00:02:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:13,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581532911] [2024-10-12 00:02:13,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581532911] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:13,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365114543] [2024-10-12 00:02:13,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:13,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:13,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:13,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:13,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 00:02:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:13,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:02:13,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:13,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:02:13,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365114543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:13,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:02:13,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-12 00:02:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788968039] [2024-10-12 00:02:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:13,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:02:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:02:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:02:13,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:13,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-10-12 00:02:13,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:13,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:13,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:14,321 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-10-12 00:02:14,322 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-10-12 00:02:14,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-10-12 00:02:14,403 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-10-12 00:02:14,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-10-12 00:02:14,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:02:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:02:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-10-12 00:02:14,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-10-12 00:02:14,406 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-10-12 00:02:14,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-10-12 00:02:14,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:14,409 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-10-12 00:02:14,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-10-12 00:02:14,410 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-10-12 00:02:14,410 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-10-12 00:02:14,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-10-12 00:02:14,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:14,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:14,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 00:02:14,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:14,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:14,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:14,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-10-12 00:02:14,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:14,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672246063] [2024-10-12 00:02:14,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:14,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:14,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:14,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672246063] [2024-10-12 00:02:14,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672246063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:14,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:14,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:14,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102045340] [2024-10-12 00:02:14,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:14,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:14,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:14,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:14,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:14,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:14,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 00:02:14,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:14,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:14,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:15,585 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-10-12 00:02:15,586 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-10-12 00:02:15,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-10-12 00:02:15,657 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-10-12 00:02:15,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-10-12 00:02:15,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:15,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-10-12 00:02:15,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-10-12 00:02:15,660 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-10-12 00:02:15,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-10-12 00:02:15,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-12 00:02:15,666 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-10-12 00:02:15,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-10-12 00:02:15,667 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-10-12 00:02:15,669 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-10-12 00:02:15,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 00:02:15,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:15,669 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-12 00:02:15,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 00:02:15,670 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:15,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-10-12 00:02:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:15,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748555259] [2024-10-12 00:02:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:15,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:15,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748555259] [2024-10-12 00:02:15,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748555259] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:15,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467676372] [2024-10-12 00:02:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:15,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:15,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:15,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:15,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 00:02:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:15,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:02:15,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:15,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:15,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:15,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467676372] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:15,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:15,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-12 00:02:15,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558192159] [2024-10-12 00:02:15,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:15,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:02:15,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:02:15,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:02:15,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:15,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-10-12 00:02:15,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:15,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:15,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:17,078 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-10-12 00:02:17,079 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-10-12 00:02:17,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-10-12 00:02:17,162 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-10-12 00:02:17,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-10-12 00:02:17,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:02:17,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:02:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-10-12 00:02:17,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-10-12 00:02:17,167 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-10-12 00:02:17,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-10-12 00:02:17,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:17,172 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-10-12 00:02:17,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-10-12 00:02:17,175 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-12 00:02:17,175 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-10-12 00:02:17,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-10-12 00:02:17,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:17,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:17,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 00:02:17,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:17,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:17,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-10-12 00:02:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56879182] [2024-10-12 00:02:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:17,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:17,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:17,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56879182] [2024-10-12 00:02:17,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56879182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:17,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:17,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:02:17,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854090970] [2024-10-12 00:02:17,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:17,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:02:17,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:17,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:02:17,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:02:17,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:17,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 00:02:17,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:17,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:17,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:18,130 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-10-12 00:02:18,130 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-10-12 00:02:18,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-10-12 00:02:18,180 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-10-12 00:02:18,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-10-12 00:02:18,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:02:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:02:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-12 00:02:18,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-10-12 00:02:18,182 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-10-12 00:02:18,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-10-12 00:02:18,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:18,187 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-10-12 00:02:18,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-10-12 00:02:18,189 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-10-12 00:02:18,189 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-10-12 00:02:18,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-10-12 00:02:18,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:18,190 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:18,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 00:02:18,190 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:18,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-10-12 00:02:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:18,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993601235] [2024-10-12 00:02:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:18,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:18,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993601235] [2024-10-12 00:02:18,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993601235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:18,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:18,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:18,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751719023] [2024-10-12 00:02:18,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:18,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:18,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:18,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:18,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-10-12 00:02:18,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:18,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:18,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:18,905 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-10-12 00:02:18,905 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-12 00:02:18,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-10-12 00:02:18,953 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-10-12 00:02:18,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-10-12 00:02:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:18,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-10-12 00:02:18,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-10-12 00:02:18,955 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-10-12 00:02:18,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-10-12 00:02:18,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:18,960 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-10-12 00:02:18,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-10-12 00:02:18,960 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-10-12 00:02:18,961 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-10-12 00:02:18,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-10-12 00:02:18,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:18,961 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:18,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 00:02:18,961 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:18,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:18,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-10-12 00:02:18,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:18,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383113549] [2024-10-12 00:02:18,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:18,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:02:19,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:19,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383113549] [2024-10-12 00:02:19,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383113549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:19,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:19,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:19,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284394325] [2024-10-12 00:02:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:19,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:19,115 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:19,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-10-12 00:02:19,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:19,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:19,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:19,673 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-10-12 00:02:19,673 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-10-12 00:02:19,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-10-12 00:02:19,710 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-10-12 00:02:19,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-10-12 00:02:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:19,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:19,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:19,713 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:19,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-10-12 00:02:19,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:02:19,717 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-10-12 00:02:19,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-10-12 00:02:19,718 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-10-12 00:02:19,718 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-10-12 00:02:19,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-10-12 00:02:19,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:19,719 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-10-12 00:02:19,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 00:02:19,719 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:19,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-10-12 00:02:19,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:19,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025090142] [2024-10-12 00:02:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025090142] [2024-10-12 00:02:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025090142] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415597377] [2024-10-12 00:02:19,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:02:19,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:19,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:19,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 00:02:19,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:02:19,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:02:19,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:02:19,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:02:20,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:20,054 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:02:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415597377] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:20,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:20,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-10-12 00:02:20,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969935544] [2024-10-12 00:02:20,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:20,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 00:02:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:20,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 00:02:20,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-12 00:02:20,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:20,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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) [2024-10-12 00:02:20,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:20,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:20,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:20,982 INFO L124 PetriNetUnfolderBase]: 4154/8074 cut-off events. [2024-10-12 00:02:20,982 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-10-12 00:02:21,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13919 conditions, 8074 events. 4154/8074 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66126 event pairs, 2736 based on Foata normal form. 6/6459 useless extension candidates. Maximal degree in co-relation 13900. Up to 5517 conditions per place. [2024-10-12 00:02:21,036 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 57 selfloop transitions, 56 changer transitions 0/170 dead transitions. [2024-10-12 00:02:21,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 170 transitions, 870 flow [2024-10-12 00:02:21,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 00:02:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-12 00:02:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1118 transitions. [2024-10-12 00:02:21,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5704081632653061 [2024-10-12 00:02:21,039 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 14 states and 1118 transitions. [2024-10-12 00:02:21,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 170 transitions, 870 flow [2024-10-12 00:02:21,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 170 transitions, 830 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-12 00:02:21,045 INFO L231 Difference]: Finished difference. Result has 142 places, 170 transitions, 716 flow [2024-10-12 00:02:21,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=142, PETRI_TRANSITIONS=170} [2024-10-12 00:02:21,046 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-10-12 00:02:21,046 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 170 transitions, 716 flow [2024-10-12 00:02:21,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 73.21428571428571) internal successors, (1025), 14 states have internal predecessors, (1025), 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) [2024-10-12 00:02:21,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:21,048 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:21,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 00:02:21,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:21,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:21,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-10-12 00:02:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:21,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102223531] [2024-10-12 00:02:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:21,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:21,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:21,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102223531] [2024-10-12 00:02:21,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102223531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:21,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:21,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:21,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219349158] [2024-10-12 00:02:21,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:21,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:21,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:21,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:21,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:21,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:21,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 170 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-10-12 00:02:21,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:21,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:21,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:21,914 INFO L124 PetriNetUnfolderBase]: 4153/8073 cut-off events. [2024-10-12 00:02:21,914 INFO L125 PetriNetUnfolderBase]: For 171/171 co-relation queries the response was YES. [2024-10-12 00:02:21,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13947 conditions, 8073 events. 4153/8073 cut-off events. For 171/171 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66036 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13933. Up to 5552 conditions per place. [2024-10-12 00:02:21,961 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 109 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2024-10-12 00:02:21,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 169 transitions, 934 flow [2024-10-12 00:02:21,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:21,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:21,963 INFO L175 Difference]: Start difference. First operand has 142 places, 170 transitions, 716 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:21,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 169 transitions, 934 flow [2024-10-12 00:02:21,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 169 transitions, 727 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-10-12 00:02:21,968 INFO L231 Difference]: Finished difference. Result has 133 places, 169 transitions, 509 flow [2024-10-12 00:02:21,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=133, PETRI_TRANSITIONS=169} [2024-10-12 00:02:21,969 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-10-12 00:02:21,969 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 169 transitions, 509 flow [2024-10-12 00:02:21,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-10-12 00:02:21,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:21,970 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:21,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 00:02:21,970 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:21,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-10-12 00:02:21,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:21,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881212050] [2024-10-12 00:02:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:22,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:22,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881212050] [2024-10-12 00:02:22,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881212050] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:22,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:22,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510194844] [2024-10-12 00:02:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:22,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:22,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:22,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 169 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-10-12 00:02:22,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:22,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:22,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:22,655 INFO L124 PetriNetUnfolderBase]: 4152/8072 cut-off events. [2024-10-12 00:02:22,655 INFO L125 PetriNetUnfolderBase]: For 83/83 co-relation queries the response was YES. [2024-10-12 00:02:22,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13843 conditions, 8072 events. 4152/8072 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66042 event pairs, 2736 based on Foata normal form. 0/6442 useless extension candidates. Maximal degree in co-relation 13829. Up to 5551 conditions per place. [2024-10-12 00:02:22,759 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 108 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-10-12 00:02:22,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 728 flow [2024-10-12 00:02:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:22,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:22,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:22,762 INFO L175 Difference]: Start difference. First operand has 133 places, 169 transitions, 509 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:22,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 728 flow [2024-10-12 00:02:22,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:22,766 INFO L231 Difference]: Finished difference. Result has 134 places, 168 transitions, 508 flow [2024-10-12 00:02:22,766 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=134, PETRI_TRANSITIONS=168} [2024-10-12 00:02:22,767 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-12 00:02:22,767 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 168 transitions, 508 flow [2024-10-12 00:02:22,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-10-12 00:02:22,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:22,767 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:22,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 00:02:22,768 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:22,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:22,768 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-10-12 00:02:22,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:22,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984158968] [2024-10-12 00:02:22,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:22,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:22,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:22,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:22,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984158968] [2024-10-12 00:02:22,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984158968] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:22,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173682354] [2024-10-12 00:02:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:22,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:22,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:22,912 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:22,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 00:02:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:23,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:02:23,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:23,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:02:23,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173682354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:23,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:02:23,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-12 00:02:23,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359117812] [2024-10-12 00:02:23,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:23,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:02:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:02:23,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:02:23,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:23,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 168 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-10-12 00:02:23,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:23,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:23,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:23,734 INFO L124 PetriNetUnfolderBase]: 4152/8069 cut-off events. [2024-10-12 00:02:23,735 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-12 00:02:23,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13841 conditions, 8069 events. 4152/8069 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65975 event pairs, 2736 based on Foata normal form. 3/6439 useless extension candidates. Maximal degree in co-relation 13827. Up to 5539 conditions per place. [2024-10-12 00:02:23,779 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2024-10-12 00:02:23,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 724 flow [2024-10-12 00:02:23,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:02:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:02:23,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-10-12 00:02:23,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-10-12 00:02:23,781 INFO L175 Difference]: Start difference. First operand has 134 places, 168 transitions, 508 flow. Second operand 6 states and 507 transitions. [2024-10-12 00:02:23,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 724 flow [2024-10-12 00:02:23,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:23,785 INFO L231 Difference]: Finished difference. Result has 134 places, 165 transitions, 534 flow [2024-10-12 00:02:23,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=134, PETRI_TRANSITIONS=165} [2024-10-12 00:02:23,786 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-10-12 00:02:23,786 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 165 transitions, 534 flow [2024-10-12 00:02:23,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-10-12 00:02:23,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:23,786 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:23,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 00:02:23,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-12 00:02:23,988 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:23,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:23,988 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-10-12 00:02:23,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:23,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395525335] [2024-10-12 00:02:23,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:23,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:24,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:24,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395525335] [2024-10-12 00:02:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395525335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:24,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244139455] [2024-10-12 00:02:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:24,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:24,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:24,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:24,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 00:02:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:24,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:02:24,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:24,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:24,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:24,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244139455] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:24,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:24,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-12 00:02:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211448837] [2024-10-12 00:02:24,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:24,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:02:24,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:24,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:02:24,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:02:24,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:24,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 534 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-10-12 00:02:24,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:24,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:24,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:25,035 INFO L124 PetriNetUnfolderBase]: 4161/8105 cut-off events. [2024-10-12 00:02:25,035 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-10-12 00:02:25,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13977 conditions, 8105 events. 4161/8105 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66343 event pairs, 2736 based on Foata normal form. 9/6475 useless extension candidates. Maximal degree in co-relation 13964. Up to 5560 conditions per place. [2024-10-12 00:02:25,081 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 102 selfloop transitions, 39 changer transitions 0/192 dead transitions. [2024-10-12 00:02:25,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 192 transitions, 978 flow [2024-10-12 00:02:25,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:02:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:02:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-10-12 00:02:25,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-10-12 00:02:25,084 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 534 flow. Second operand 10 states and 828 transitions. [2024-10-12 00:02:25,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 192 transitions, 978 flow [2024-10-12 00:02:25,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 192 transitions, 888 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-10-12 00:02:25,090 INFO L231 Difference]: Finished difference. Result has 142 places, 192 transitions, 738 flow [2024-10-12 00:02:25,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=142, PETRI_TRANSITIONS=192} [2024-10-12 00:02:25,091 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-10-12 00:02:25,091 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 192 transitions, 738 flow [2024-10-12 00:02:25,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-10-12 00:02:25,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:25,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:25,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-12 00:02:25,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-12 00:02:25,293 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:25,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:25,294 INFO L85 PathProgramCache]: Analyzing trace with hash -90376987, now seen corresponding path program 1 times [2024-10-12 00:02:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:25,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477574323] [2024-10-12 00:02:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:25,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:25,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:25,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:25,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477574323] [2024-10-12 00:02:25,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477574323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:25,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:25,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:25,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053893376] [2024-10-12 00:02:25,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:25,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:25,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:25,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:25,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-10-12 00:02:25,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 192 transitions, 738 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-10-12 00:02:25,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:25,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-10-12 00:02:25,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:26,342 INFO L124 PetriNetUnfolderBase]: 8090/14045 cut-off events. [2024-10-12 00:02:26,343 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-10-12 00:02:26,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25316 conditions, 14045 events. 8090/14045 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 112659 event pairs, 2643 based on Foata normal form. 364/11809 useless extension candidates. Maximal degree in co-relation 25301. Up to 5122 conditions per place. [2024-10-12 00:02:26,485 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 188 selfloop transitions, 5 changer transitions 0/241 dead transitions. [2024-10-12 00:02:26,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 241 transitions, 1228 flow [2024-10-12 00:02:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-10-12 00:02:26,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-10-12 00:02:26,487 INFO L175 Difference]: Start difference. First operand has 142 places, 192 transitions, 738 flow. Second operand 4 states and 406 transitions. [2024-10-12 00:02:26,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 241 transitions, 1228 flow [2024-10-12 00:02:26,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 241 transitions, 1195 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:26,494 INFO L231 Difference]: Finished difference. Result has 145 places, 194 transitions, 739 flow [2024-10-12 00:02:26,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=145, PETRI_TRANSITIONS=194} [2024-10-12 00:02:26,495 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 15 predicate places. [2024-10-12 00:02:26,496 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 194 transitions, 739 flow [2024-10-12 00:02:26,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-10-12 00:02:26,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:26,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:26,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 00:02:26,497 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:26,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:26,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1493282289, now seen corresponding path program 1 times [2024-10-12 00:02:26,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:26,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530908712] [2024-10-12 00:02:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:26,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-12 00:02:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:26,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530908712] [2024-10-12 00:02:26,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530908712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:26,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:26,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:26,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168213189] [2024-10-12 00:02:26,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:26,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:26,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:26,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:26,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:26,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:26,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 194 transitions, 739 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-10-12 00:02:26,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:26,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:26,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:27,330 INFO L124 PetriNetUnfolderBase]: 5006/10058 cut-off events. [2024-10-12 00:02:27,330 INFO L125 PetriNetUnfolderBase]: For 1840/2112 co-relation queries the response was YES. [2024-10-12 00:02:27,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18439 conditions, 10058 events. 5006/10058 cut-off events. For 1840/2112 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 87873 event pairs, 3370 based on Foata normal form. 138/8312 useless extension candidates. Maximal degree in co-relation 18421. Up to 6715 conditions per place. [2024-10-12 00:02:27,401 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 136 selfloop transitions, 3 changer transitions 0/193 dead transitions. [2024-10-12 00:02:27,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 1013 flow [2024-10-12 00:02:27,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:27,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:27,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:27,403 INFO L175 Difference]: Start difference. First operand has 145 places, 194 transitions, 739 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:27,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 1013 flow [2024-10-12 00:02:27,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 193 transitions, 1013 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:02:27,416 INFO L231 Difference]: Finished difference. Result has 148 places, 193 transitions, 741 flow [2024-10-12 00:02:27,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=741, PETRI_PLACES=148, PETRI_TRANSITIONS=193} [2024-10-12 00:02:27,417 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 18 predicate places. [2024-10-12 00:02:27,417 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 193 transitions, 741 flow [2024-10-12 00:02:27,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-10-12 00:02:27,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:27,418 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:27,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 00:02:27,418 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:27,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:27,418 INFO L85 PathProgramCache]: Analyzing trace with hash -174152482, now seen corresponding path program 2 times [2024-10-12 00:02:27,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:27,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293556717] [2024-10-12 00:02:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:27,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-12 00:02:27,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:27,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293556717] [2024-10-12 00:02:27,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293556717] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:27,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631596970] [2024-10-12 00:02:27,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:02:27,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:27,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:27,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:27,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 00:02:27,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:02:27,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:02:27,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:02:27,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-12 00:02:27,901 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-12 00:02:27,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631596970] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:27,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:27,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2024-10-12 00:02:27,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130387015] [2024-10-12 00:02:27,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:27,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:02:27,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:27,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:02:27,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:02:28,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 140 [2024-10-12 00:02:28,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 193 transitions, 741 flow. Second operand has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 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) [2024-10-12 00:02:28,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:28,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 140 [2024-10-12 00:02:28,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:29,992 INFO L124 PetriNetUnfolderBase]: 10002/20069 cut-off events. [2024-10-12 00:02:29,993 INFO L125 PetriNetUnfolderBase]: For 3679/4224 co-relation queries the response was YES. [2024-10-12 00:02:30,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36730 conditions, 20069 events. 10002/20069 cut-off events. For 3679/4224 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 194062 event pairs, 6740 based on Foata normal form. 281/16745 useless extension candidates. Maximal degree in co-relation 36710. Up to 6679 conditions per place. [2024-10-12 00:02:30,379 INFO L140 encePairwiseOnDemand]: 120/140 looper letters, 159 selfloop transitions, 89 changer transitions 0/299 dead transitions. [2024-10-12 00:02:30,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 299 transitions, 1655 flow [2024-10-12 00:02:30,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 00:02:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-12 00:02:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 994 transitions. [2024-10-12 00:02:30,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2024-10-12 00:02:30,382 INFO L175 Difference]: Start difference. First operand has 148 places, 193 transitions, 741 flow. Second operand 14 states and 994 transitions. [2024-10-12 00:02:30,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 299 transitions, 1655 flow [2024-10-12 00:02:30,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 299 transitions, 1597 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-12 00:02:30,403 INFO L231 Difference]: Finished difference. Result has 152 places, 226 transitions, 1045 flow [2024-10-12 00:02:30,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1045, PETRI_PLACES=152, PETRI_TRANSITIONS=226} [2024-10-12 00:02:30,405 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 22 predicate places. [2024-10-12 00:02:30,405 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 226 transitions, 1045 flow [2024-10-12 00:02:30,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.08333333333333) internal successors, (781), 12 states have internal predecessors, (781), 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) [2024-10-12 00:02:30,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:30,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:30,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 00:02:30,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:30,608 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:30,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:30,609 INFO L85 PathProgramCache]: Analyzing trace with hash 251158034, now seen corresponding path program 1 times [2024-10-12 00:02:30,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:30,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773267104] [2024-10-12 00:02:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:30,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:30,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773267104] [2024-10-12 00:02:30,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773267104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:30,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:30,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:30,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489984934] [2024-10-12 00:02:30,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:30,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:30,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:30,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 226 transitions, 1045 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2024-10-12 00:02:30,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:30,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:30,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:32,111 INFO L124 PetriNetUnfolderBase]: 10000/20067 cut-off events. [2024-10-12 00:02:32,111 INFO L125 PetriNetUnfolderBase]: For 3702/4246 co-relation queries the response was YES. [2024-10-12 00:02:32,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36778 conditions, 20067 events. 10000/20067 cut-off events. For 3702/4246 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 194041 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36762. Up to 13398 conditions per place. [2024-10-12 00:02:32,303 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 168 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-10-12 00:02:32,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 224 transitions, 1379 flow [2024-10-12 00:02:32,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:32,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:32,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:32,304 INFO L175 Difference]: Start difference. First operand has 152 places, 226 transitions, 1045 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:32,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 224 transitions, 1379 flow [2024-10-12 00:02:32,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 224 transitions, 1376 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:32,318 INFO L231 Difference]: Finished difference. Result has 153 places, 224 transitions, 1040 flow [2024-10-12 00:02:32,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1040, PETRI_PLACES=153, PETRI_TRANSITIONS=224} [2024-10-12 00:02:32,318 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 23 predicate places. [2024-10-12 00:02:32,319 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 224 transitions, 1040 flow [2024-10-12 00:02:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 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) [2024-10-12 00:02:32,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:32,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:32,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 00:02:32,319 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:32,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619158, now seen corresponding path program 1 times [2024-10-12 00:02:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185430042] [2024-10-12 00:02:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:32,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:32,431 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-12 00:02:32,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:32,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185430042] [2024-10-12 00:02:32,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185430042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:32,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815794317] [2024-10-12 00:02:32,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:32,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:32,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:32,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-10-12 00:02:32,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 224 transitions, 1040 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-10-12 00:02:32,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:32,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-10-12 00:02:32,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:33,711 INFO L124 PetriNetUnfolderBase]: 9998/20065 cut-off events. [2024-10-12 00:02:33,711 INFO L125 PetriNetUnfolderBase]: For 3711/4255 co-relation queries the response was YES. [2024-10-12 00:02:33,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36774 conditions, 20065 events. 9998/20065 cut-off events. For 3711/4255 co-relation queries the response was YES. Maximal size of possible extension queue 1234. Compared 193874 event pairs, 6740 based on Foata normal form. 274/16563 useless extension candidates. Maximal degree in co-relation 36757. Up to 13396 conditions per place. [2024-10-12 00:02:33,902 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 166 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2024-10-12 00:02:33,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 222 transitions, 1370 flow [2024-10-12 00:02:33,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:33,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-10-12 00:02:33,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-10-12 00:02:33,904 INFO L175 Difference]: Start difference. First operand has 153 places, 224 transitions, 1040 flow. Second operand 4 states and 359 transitions. [2024-10-12 00:02:33,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 222 transitions, 1370 flow [2024-10-12 00:02:33,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 222 transitions, 1364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:33,915 INFO L231 Difference]: Finished difference. Result has 154 places, 222 transitions, 1032 flow [2024-10-12 00:02:33,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1032, PETRI_PLACES=154, PETRI_TRANSITIONS=222} [2024-10-12 00:02:33,916 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 24 predicate places. [2024-10-12 00:02:33,916 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 222 transitions, 1032 flow [2024-10-12 00:02:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-10-12 00:02:33,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:33,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:33,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 00:02:33,917 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:33,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash -409634365, now seen corresponding path program 1 times [2024-10-12 00:02:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13050907] [2024-10-12 00:02:33,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:33,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:34,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13050907] [2024-10-12 00:02:34,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13050907] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:34,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170668821] [2024-10-12 00:02:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:34,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:34,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:34,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:34,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 00:02:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:34,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-12 00:02:34,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:34,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-12 00:02:35,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-10-12 00:02:35,226 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-12 00:02:35,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-12 00:02:35,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-10-12 00:02:35,544 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-10-12 00:02:35,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2024-10-12 00:02:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:35,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:35,627 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2024-10-12 00:02:35,784 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 00:02:35,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-10-12 00:02:35,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 00:02:35,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-10-12 00:02:35,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2024-10-12 00:02:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-10-12 00:02:35,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170668821] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:35,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:35,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-10-12 00:02:35,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144427010] [2024-10-12 00:02:35,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:35,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-12 00:02:35,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:35,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-12 00:02:35,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-10-12 00:02:35,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-10-12 00:02:35,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 222 transitions, 1032 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-10-12 00:02:35,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:35,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-10-12 00:02:35,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:37,259 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| Int)) (or (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#2| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174|) 0)))) (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (<= 0 c_~id_3~0))) is different from false [2024-10-12 00:02:41,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-12 00:02:53,260 INFO L124 PetriNetUnfolderBase]: 77802/118539 cut-off events. [2024-10-12 00:02:53,260 INFO L125 PetriNetUnfolderBase]: For 11861/12305 co-relation queries the response was YES. [2024-10-12 00:02:53,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241680 conditions, 118539 events. 77802/118539 cut-off events. For 11861/12305 co-relation queries the response was YES. Maximal size of possible extension queue 4973. Compared 1015762 event pairs, 17482 based on Foata normal form. 444/104181 useless extension candidates. Maximal degree in co-relation 241663. Up to 24786 conditions per place. [2024-10-12 00:02:54,188 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 525 selfloop transitions, 82 changer transitions 0/644 dead transitions. [2024-10-12 00:02:54,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 644 transitions, 4115 flow [2024-10-12 00:02:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-12 00:02:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-12 00:02:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1533 transitions. [2024-10-12 00:02:54,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49772727272727274 [2024-10-12 00:02:54,192 INFO L175 Difference]: Start difference. First operand has 154 places, 222 transitions, 1032 flow. Second operand 22 states and 1533 transitions. [2024-10-12 00:02:54,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 644 transitions, 4115 flow [2024-10-12 00:02:54,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 644 transitions, 4101 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:54,869 INFO L231 Difference]: Finished difference. Result has 178 places, 266 transitions, 1469 flow [2024-10-12 00:02:54,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1469, PETRI_PLACES=178, PETRI_TRANSITIONS=266} [2024-10-12 00:02:54,870 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 48 predicate places. [2024-10-12 00:02:54,870 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 266 transitions, 1469 flow [2024-10-12 00:02:54,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-10-12 00:02:54,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:54,871 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:54,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-12 00:02:55,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:55,072 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-10-12 00:02:55,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:55,073 INFO L85 PathProgramCache]: Analyzing trace with hash 186206391, now seen corresponding path program 1 times [2024-10-12 00:02:55,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:55,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848926492] [2024-10-12 00:02:55,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:55,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:55,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:55,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848926492] [2024-10-12 00:02:55,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848926492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:02:55,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315527153] [2024-10-12 00:02:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:55,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:02:55,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:55,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:02:55,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 00:02:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:55,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-12 00:02:55,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:02:56,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-12 00:02:56,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2024-10-12 00:02:56,239 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-12 00:02:56,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-12 00:02:56,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-10-12 00:02:56,667 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-10-12 00:02:56,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2024-10-12 00:02:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-12 00:02:56,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:02:56,767 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_416 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_416) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-10-12 00:02:56,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 00:02:56,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-10-12 00:02:56,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 00:02:56,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-10-12 00:02:56,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2024-10-12 00:02:57,006 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-10-12 00:02:57,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315527153] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:02:57,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:02:57,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-10-12 00:02:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251430424] [2024-10-12 00:02:57,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:02:57,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-12 00:02:57,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-12 00:02:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-10-12 00:02:57,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-10-12 00:02:57,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 266 transitions, 1469 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-10-12 00:02:57,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:57,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-10-12 00:02:57,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:03,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-12 00:03:19,997 INFO L124 PetriNetUnfolderBase]: 101834/155032 cut-off events. [2024-10-12 00:03:19,997 INFO L125 PetriNetUnfolderBase]: For 36981/37509 co-relation queries the response was YES. [2024-10-12 00:03:20,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328799 conditions, 155032 events. 101834/155032 cut-off events. For 36981/37509 co-relation queries the response was YES. Maximal size of possible extension queue 6565. Compared 1368790 event pairs, 24092 based on Foata normal form. 1620/137756 useless extension candidates. Maximal degree in co-relation 328777. Up to 27956 conditions per place.