./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:37:36,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:37:37,034 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:37:37,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:37:37,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:37:37,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:37:37,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:37:37,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:37:37,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:37:37,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:37:37,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:37:37,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:37:37,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:37:37,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:37:37,089 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:37:37,089 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:37:37,090 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:37:37,090 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:37:37,090 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:37:37,091 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:37:37,091 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:37:37,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:37:37,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:37:37,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:37:37,095 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:37:37,096 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:37:37,096 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:37:37,096 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:37:37,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:37:37,097 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:37:37,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:37:37,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:37:37,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:37:37,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:37:37,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:37:37,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:37:37,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:37:37,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:37:37,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:37:37,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:37:37,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:37:37,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:37:37,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:37:37,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:37:37,103 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-12 20:37:37,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:37:37,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:37:37,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:37:37,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:37:37,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:37:37,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-12 20:37:38,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:37:39,130 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:37:39,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-12 20:37:39,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99fa864a/92ed07a120c44a9b88df87b91bc17f95/FLAGdb670a61b [2024-11-12 20:37:39,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c99fa864a/92ed07a120c44a9b88df87b91bc17f95 [2024-11-12 20:37:39,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:37:39,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:37:39,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:37:39,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:37:39,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:37:39,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:37:39" (1/1) ... [2024-11-12 20:37:39,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346e4d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:39, skipping insertion in model container [2024-11-12 20:37:39,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:37:39" (1/1) ... [2024-11-12 20:37:39,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:37:39,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:37:39,900 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:37:39,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:37:40,010 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:37:40,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40 WrapperNode [2024-11-12 20:37:40,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:37:40,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:37:40,013 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:37:40,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:37:40,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,038 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,069 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 129 [2024-11-12 20:37:40,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:37:40,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:37:40,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:37:40,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:37:40,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,103 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-12 20:37:40,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:37:40,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:37:40,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:37:40,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:37:40,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (1/1) ... [2024-11-12 20:37:40,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:37:40,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:40,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:37:40,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:37:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:37:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 20:37:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-12 20:37:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:37:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:37:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:37:40,234 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:37:40,404 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:37:40,407 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:37:40,713 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:37:40,713 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:37:40,923 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:37:40,924 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 20:37:40,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:37:40 BoogieIcfgContainer [2024-11-12 20:37:40,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:37:40,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:37:40,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:37:40,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:37:40,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:37:39" (1/3) ... [2024-11-12 20:37:40,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c0a44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:37:40, skipping insertion in model container [2024-11-12 20:37:40,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:40" (2/3) ... [2024-11-12 20:37:40,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c0a44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:37:40, skipping insertion in model container [2024-11-12 20:37:40,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:37:40" (3/3) ... [2024-11-12 20:37:40,936 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-12 20:37:40,955 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:37:40,956 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 20:37:40,956 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:37:41,024 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 20:37:41,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 86 flow [2024-11-12 20:37:41,085 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-11-12 20:37:41,087 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:41,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-12 20:37:41,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 86 flow [2024-11-12 20:37:41,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 83 flow [2024-11-12 20:37:41,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:37:41,113 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;@7df754f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:37:41,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-12 20:37:41,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:37:41,123 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-11-12 20:37:41,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:41,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:41,124 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:41,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:41,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1085093689, now seen corresponding path program 1 times [2024-11-12 20:37:41,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:41,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723329636] [2024-11-12 20:37:41,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:41,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:41,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:41,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723329636] [2024-11-12 20:37:41,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723329636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:41,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:41,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:41,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446503159] [2024-11-12 20:37:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:41,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:37:41,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:41,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:37:41,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:37:41,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:41,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:41,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:41,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:41,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:42,132 INFO L124 PetriNetUnfolderBase]: 363/738 cut-off events. [2024-11-12 20:37:42,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:42,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 738 events. 363/738 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3623 event pairs, 35 based on Foata normal form. 64/658 useless extension candidates. Maximal degree in co-relation 1367. Up to 352 conditions per place. [2024-11-12 20:37:42,144 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2024-11-12 20:37:42,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 93 transitions, 351 flow [2024-11-12 20:37:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:42,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-12 20:37:42,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7032520325203252 [2024-11-12 20:37:42,186 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 83 flow. Second operand 6 states and 173 transitions. [2024-11-12 20:37:42,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 93 transitions, 351 flow [2024-11-12 20:37:42,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 93 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:42,197 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 148 flow [2024-11-12 20:37:42,199 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-11-12 20:37:42,203 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2024-11-12 20:37:42,203 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 148 flow [2024-11-12 20:37:42,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:42,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:42,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:42,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:37:42,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:42,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 902029017, now seen corresponding path program 1 times [2024-11-12 20:37:42,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:42,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982533849] [2024-11-12 20:37:42,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:42,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:42,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:42,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:42,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982533849] [2024-11-12 20:37:42,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982533849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:42,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:42,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:42,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458436098] [2024-11-12 20:37:42,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:37:42,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:42,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:37:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:37:42,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-12 20:37:42,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:42,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:42,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-12 20:37:42,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:42,651 INFO L124 PetriNetUnfolderBase]: 298/648 cut-off events. [2024-11-12 20:37:42,652 INFO L125 PetriNetUnfolderBase]: For 135/139 co-relation queries the response was YES. [2024-11-12 20:37:42,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 648 events. 298/648 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3153 event pairs, 26 based on Foata normal form. 22/593 useless extension candidates. Maximal degree in co-relation 1386. Up to 378 conditions per place. [2024-11-12 20:37:42,665 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 66 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-12 20:37:42,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 90 transitions, 389 flow [2024-11-12 20:37:42,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-11-12 20:37:42,668 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2024-11-12 20:37:42,668 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 148 flow. Second operand 6 states and 165 transitions. [2024-11-12 20:37:42,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 90 transitions, 389 flow [2024-11-12 20:37:42,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:42,674 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 192 flow [2024-11-12 20:37:42,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-11-12 20:37:42,675 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-12 20:37:42,676 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 192 flow [2024-11-12 20:37:42,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:42,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:42,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:42,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:37:42,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:42,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:42,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2107583250, now seen corresponding path program 1 times [2024-11-12 20:37:42,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:42,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480135789] [2024-11-12 20:37:42,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:42,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:42,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:42,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480135789] [2024-11-12 20:37:42,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480135789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:42,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:42,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221157791] [2024-11-12 20:37:42,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:42,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:37:42,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:42,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:37:42,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:37:42,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-12 20:37:42,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:42,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:42,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-12 20:37:42,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:43,094 INFO L124 PetriNetUnfolderBase]: 467/992 cut-off events. [2024-11-12 20:37:43,096 INFO L125 PetriNetUnfolderBase]: For 570/585 co-relation queries the response was YES. [2024-11-12 20:37:43,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 992 events. 467/992 cut-off events. For 570/585 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5319 event pairs, 95 based on Foata normal form. 32/945 useless extension candidates. Maximal degree in co-relation 2372. Up to 491 conditions per place. [2024-11-12 20:37:43,104 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 93 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2024-11-12 20:37:43,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 124 transitions, 745 flow [2024-11-12 20:37:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:43,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:43,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-11-12 20:37:43,108 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6300813008130082 [2024-11-12 20:37:43,108 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 192 flow. Second operand 6 states and 155 transitions. [2024-11-12 20:37:43,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 124 transitions, 745 flow [2024-11-12 20:37:43,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 124 transitions, 719 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:43,116 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 351 flow [2024-11-12 20:37:43,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-11-12 20:37:43,119 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-12 20:37:43,119 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 351 flow [2024-11-12 20:37:43,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:43,121 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:43,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:37:43,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:43,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:43,122 INFO L85 PathProgramCache]: Analyzing trace with hash -910570875, now seen corresponding path program 1 times [2024-11-12 20:37:43,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:43,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058192932] [2024-11-12 20:37:43,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:43,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:43,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:43,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058192932] [2024-11-12 20:37:43,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058192932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:43,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:43,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:43,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018103265] [2024-11-12 20:37:43,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:43,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:43,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:43,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:43,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-11-12 20:37:43,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:43,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-11-12 20:37:43,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:43,415 INFO L124 PetriNetUnfolderBase]: 335/756 cut-off events. [2024-11-12 20:37:43,415 INFO L125 PetriNetUnfolderBase]: For 759/801 co-relation queries the response was YES. [2024-11-12 20:37:43,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 756 events. 335/756 cut-off events. For 759/801 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3727 event pairs, 111 based on Foata normal form. 35/765 useless extension candidates. Maximal degree in co-relation 2099. Up to 454 conditions per place. [2024-11-12 20:37:43,421 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 57 selfloop transitions, 11 changer transitions 3/86 dead transitions. [2024-11-12 20:37:43,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 555 flow [2024-11-12 20:37:43,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:37:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:37:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-11-12 20:37:43,423 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-12 20:37:43,423 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 351 flow. Second operand 5 states and 130 transitions. [2024-11-12 20:37:43,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 555 flow [2024-11-12 20:37:43,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 533 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:43,433 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 365 flow [2024-11-12 20:37:43,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-12 20:37:43,434 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2024-11-12 20:37:43,434 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 365 flow [2024-11-12 20:37:43,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:43,436 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:43,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:37:43,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:43,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash -731723231, now seen corresponding path program 1 times [2024-11-12 20:37:43,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:43,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607235037] [2024-11-12 20:37:43,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:43,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:43,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:43,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607235037] [2024-11-12 20:37:43,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607235037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:43,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:43,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:43,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228729693] [2024-11-12 20:37:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:43,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:43,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:43,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:43,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:43,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:43,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:43,668 INFO L124 PetriNetUnfolderBase]: 398/863 cut-off events. [2024-11-12 20:37:43,668 INFO L125 PetriNetUnfolderBase]: For 1267/1349 co-relation queries the response was YES. [2024-11-12 20:37:43,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 863 events. 398/863 cut-off events. For 1267/1349 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4481 event pairs, 35 based on Foata normal form. 80/911 useless extension candidates. Maximal degree in co-relation 2527. Up to 559 conditions per place. [2024-11-12 20:37:43,674 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 84 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2024-11-12 20:37:43,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 717 flow [2024-11-12 20:37:43,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:43,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:43,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-12 20:37:43,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2024-11-12 20:37:43,676 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 365 flow. Second operand 4 states and 111 transitions. [2024-11-12 20:37:43,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 717 flow [2024-11-12 20:37:43,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 715 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:43,682 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 383 flow [2024-11-12 20:37:43,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-11-12 20:37:43,683 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-12 20:37:43,683 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 383 flow [2024-11-12 20:37:43,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,684 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:43,684 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:43,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:37:43,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:43,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:43,685 INFO L85 PathProgramCache]: Analyzing trace with hash -84141361, now seen corresponding path program 1 times [2024-11-12 20:37:43,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:43,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193417311] [2024-11-12 20:37:43,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:43,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:43,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:43,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193417311] [2024-11-12 20:37:43,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193417311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:43,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:43,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:43,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698653167] [2024-11-12 20:37:43,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:43,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:37:43,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:43,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:37:43,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:37:43,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-12 20:37:43,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:43,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:43,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-12 20:37:43,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:44,109 INFO L124 PetriNetUnfolderBase]: 367/867 cut-off events. [2024-11-12 20:37:44,109 INFO L125 PetriNetUnfolderBase]: For 1185/1206 co-relation queries the response was YES. [2024-11-12 20:37:44,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 867 events. 367/867 cut-off events. For 1185/1206 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4675 event pairs, 177 based on Foata normal form. 7/869 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2024-11-12 20:37:44,116 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 57 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-11-12 20:37:44,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 572 flow [2024-11-12 20:37:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:37:44,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:37:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-11-12 20:37:44,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2024-11-12 20:37:44,119 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 383 flow. Second operand 5 states and 117 transitions. [2024-11-12 20:37:44,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 572 flow [2024-11-12 20:37:44,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:44,126 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 400 flow [2024-11-12 20:37:44,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-11-12 20:37:44,128 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2024-11-12 20:37:44,129 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 400 flow [2024-11-12 20:37:44,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:44,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:44,129 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:44,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:37:44,130 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:44,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash 22454703, now seen corresponding path program 2 times [2024-11-12 20:37:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:44,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548195151] [2024-11-12 20:37:44,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:44,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:44,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548195151] [2024-11-12 20:37:44,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548195151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:44,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:44,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:44,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113886374] [2024-11-12 20:37:44,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:44,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:44,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:44,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:44,432 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-12 20:37:44,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:44,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:44,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-12 20:37:44,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:44,813 INFO L124 PetriNetUnfolderBase]: 400/942 cut-off events. [2024-11-12 20:37:44,813 INFO L125 PetriNetUnfolderBase]: For 1608/1629 co-relation queries the response was YES. [2024-11-12 20:37:44,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 942 events. 400/942 cut-off events. For 1608/1629 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5184 event pairs, 182 based on Foata normal form. 13/950 useless extension candidates. Maximal degree in co-relation 2943. Up to 630 conditions per place. [2024-11-12 20:37:44,821 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 68 selfloop transitions, 20 changer transitions 1/103 dead transitions. [2024-11-12 20:37:44,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 819 flow [2024-11-12 20:37:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 20:37:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 20:37:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-11-12 20:37:44,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2024-11-12 20:37:44,823 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 400 flow. Second operand 10 states and 208 transitions. [2024-11-12 20:37:44,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 819 flow [2024-11-12 20:37:44,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 787 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:44,833 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 578 flow [2024-11-12 20:37:44,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-12 20:37:44,834 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2024-11-12 20:37:44,834 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 578 flow [2024-11-12 20:37:44,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:44,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:44,835 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:44,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:37:44,835 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:44,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash 531534455, now seen corresponding path program 3 times [2024-11-12 20:37:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:44,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965963726] [2024-11-12 20:37:44,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:45,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:45,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965963726] [2024-11-12 20:37:45,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965963726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:45,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:45,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 20:37:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439245452] [2024-11-12 20:37:45,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:45,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:45,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:45,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:45,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-11-12 20:37:45,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 578 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:45,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:45,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-11-12 20:37:45,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:45,435 INFO L124 PetriNetUnfolderBase]: 393/935 cut-off events. [2024-11-12 20:37:45,435 INFO L125 PetriNetUnfolderBase]: For 2075/2092 co-relation queries the response was YES. [2024-11-12 20:37:45,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3139 conditions, 935 events. 393/935 cut-off events. For 2075/2092 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4822 event pairs, 154 based on Foata normal form. 12/943 useless extension candidates. Maximal degree in co-relation 3103. Up to 605 conditions per place. [2024-11-12 20:37:45,443 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2024-11-12 20:37:45,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 959 flow [2024-11-12 20:37:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:45,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-11-12 20:37:45,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-11-12 20:37:45,445 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 578 flow. Second operand 8 states and 176 transitions. [2024-11-12 20:37:45,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 959 flow [2024-11-12 20:37:45,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 913 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:45,453 INFO L231 Difference]: Finished difference. Result has 91 places, 85 transitions, 697 flow [2024-11-12 20:37:45,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=91, PETRI_TRANSITIONS=85} [2024-11-12 20:37:45,453 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2024-11-12 20:37:45,454 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 85 transitions, 697 flow [2024-11-12 20:37:45,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:45,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:45,454 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:45,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:37:45,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:45,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:45,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1248191038, now seen corresponding path program 1 times [2024-11-12 20:37:45,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:45,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235952694] [2024-11-12 20:37:45,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:45,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:45,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:45,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235952694] [2024-11-12 20:37:45,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235952694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:45,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609377426] [2024-11-12 20:37:45,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:45,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:45,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:45,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:45,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:37:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:45,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-12 20:37:45,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:45,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-12 20:37:46,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2024-11-12 20:37:46,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 20:37:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:46,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:46,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609377426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:46,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:46,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2024-11-12 20:37:46,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829852450] [2024-11-12 20:37:46,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:46,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-12 20:37:46,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:46,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-12 20:37:46,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-12 20:37:46,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-11-12 20:37:46,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 85 transitions, 697 flow. Second operand has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:46,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:46,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-11-12 20:37:46,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:47,952 INFO L124 PetriNetUnfolderBase]: 1416/2974 cut-off events. [2024-11-12 20:37:47,952 INFO L125 PetriNetUnfolderBase]: For 5824/6039 co-relation queries the response was YES. [2024-11-12 20:37:47,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 2974 events. 1416/2974 cut-off events. For 5824/6039 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17623 event pairs, 108 based on Foata normal form. 198/3153 useless extension candidates. Maximal degree in co-relation 9733. Up to 576 conditions per place. [2024-11-12 20:37:47,979 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 348 selfloop transitions, 102 changer transitions 0/465 dead transitions. [2024-11-12 20:37:47,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 465 transitions, 3915 flow [2024-11-12 20:37:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 20:37:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-12 20:37:47,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 543 transitions. [2024-11-12 20:37:47,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6019955654101996 [2024-11-12 20:37:47,982 INFO L175 Difference]: Start difference. First operand has 91 places, 85 transitions, 697 flow. Second operand 22 states and 543 transitions. [2024-11-12 20:37:47,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 465 transitions, 3915 flow [2024-11-12 20:37:47,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 465 transitions, 3776 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:48,004 INFO L231 Difference]: Finished difference. Result has 117 places, 179 transitions, 1724 flow [2024-11-12 20:37:48,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1724, PETRI_PLACES=117, PETRI_TRANSITIONS=179} [2024-11-12 20:37:48,006 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2024-11-12 20:37:48,006 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 179 transitions, 1724 flow [2024-11-12 20:37:48,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:48,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:48,006 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:48,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 20:37:48,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:48,211 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:48,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -268526372, now seen corresponding path program 1 times [2024-11-12 20:37:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684209506] [2024-11-12 20:37:48,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:48,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:48,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684209506] [2024-11-12 20:37:48,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684209506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:48,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:48,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 20:37:48,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26791304] [2024-11-12 20:37:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:48,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:48,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:48,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 179 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:48,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:48,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:48,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:49,594 INFO L124 PetriNetUnfolderBase]: 2848/5971 cut-off events. [2024-11-12 20:37:49,594 INFO L125 PetriNetUnfolderBase]: For 16881/17232 co-relation queries the response was YES. [2024-11-12 20:37:49,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21920 conditions, 5971 events. 2848/5971 cut-off events. For 16881/17232 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 41094 event pairs, 330 based on Foata normal form. 329/6280 useless extension candidates. Maximal degree in co-relation 21871. Up to 1268 conditions per place. [2024-11-12 20:37:49,819 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 322 selfloop transitions, 208 changer transitions 0/548 dead transitions. [2024-11-12 20:37:49,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 548 transitions, 5906 flow [2024-11-12 20:37:49,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 20:37:49,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 20:37:49,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-11-12 20:37:49,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-11-12 20:37:49,821 INFO L175 Difference]: Start difference. First operand has 117 places, 179 transitions, 1724 flow. Second operand 10 states and 256 transitions. [2024-11-12 20:37:49,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 548 transitions, 5906 flow [2024-11-12 20:37:49,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 548 transitions, 5221 flow, removed 307 selfloop flow, removed 6 redundant places. [2024-11-12 20:37:49,912 INFO L231 Difference]: Finished difference. Result has 127 places, 367 transitions, 3991 flow [2024-11-12 20:37:49,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3991, PETRI_PLACES=127, PETRI_TRANSITIONS=367} [2024-11-12 20:37:49,913 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2024-11-12 20:37:49,914 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 367 transitions, 3991 flow [2024-11-12 20:37:49,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:49,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:49,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:49,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:37:49,915 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:49,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash 273094066, now seen corresponding path program 2 times [2024-11-12 20:37:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345993826] [2024-11-12 20:37:49,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:50,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:50,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:50,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345993826] [2024-11-12 20:37:50,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345993826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:50,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 20:37:50,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184121477] [2024-11-12 20:37:50,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 20:37:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:50,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 20:37:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:50,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-12 20:37:50,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 367 transitions, 3991 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:50,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:50,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-12 20:37:50,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:52,047 INFO L124 PetriNetUnfolderBase]: 4121/8417 cut-off events. [2024-11-12 20:37:52,048 INFO L125 PetriNetUnfolderBase]: For 36519/36916 co-relation queries the response was YES. [2024-11-12 20:37:52,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34863 conditions, 8417 events. 4121/8417 cut-off events. For 36519/36916 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60730 event pairs, 929 based on Foata normal form. 377/8747 useless extension candidates. Maximal degree in co-relation 34810. Up to 4476 conditions per place. [2024-11-12 20:37:52,121 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 480 selfloop transitions, 205 changer transitions 1/700 dead transitions. [2024-11-12 20:37:52,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 700 transitions, 8359 flow [2024-11-12 20:37:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 20:37:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 20:37:52,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 360 transitions. [2024-11-12 20:37:52,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-12 20:37:52,123 INFO L175 Difference]: Start difference. First operand has 127 places, 367 transitions, 3991 flow. Second operand 18 states and 360 transitions. [2024-11-12 20:37:52,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 700 transitions, 8359 flow [2024-11-12 20:37:52,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 700 transitions, 8333 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:52,409 INFO L231 Difference]: Finished difference. Result has 158 places, 527 transitions, 6771 flow [2024-11-12 20:37:52,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3969, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6771, PETRI_PLACES=158, PETRI_TRANSITIONS=527} [2024-11-12 20:37:52,410 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2024-11-12 20:37:52,410 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 527 transitions, 6771 flow [2024-11-12 20:37:52,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:52,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:52,411 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:52,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:37:52,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:52,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 766686372, now seen corresponding path program 3 times [2024-11-12 20:37:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:52,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116979840] [2024-11-12 20:37:52,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:52,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:52,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:52,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116979840] [2024-11-12 20:37:52,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116979840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:52,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:52,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 20:37:52,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463830525] [2024-11-12 20:37:52,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:52,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:52,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:52,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:52,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:52,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:52,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 527 transitions, 6771 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:52,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:52,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:52,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:54,270 INFO L124 PetriNetUnfolderBase]: 3546/7619 cut-off events. [2024-11-12 20:37:54,271 INFO L125 PetriNetUnfolderBase]: For 53282/53712 co-relation queries the response was YES. [2024-11-12 20:37:54,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34368 conditions, 7619 events. 3546/7619 cut-off events. For 53282/53712 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 55527 event pairs, 670 based on Foata normal form. 517/8077 useless extension candidates. Maximal degree in co-relation 34299. Up to 3450 conditions per place. [2024-11-12 20:37:54,332 INFO L140 encePairwiseOnDemand]: 33/41 looper letters, 220 selfloop transitions, 397 changer transitions 1/636 dead transitions. [2024-11-12 20:37:54,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 636 transitions, 9053 flow [2024-11-12 20:37:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 20:37:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 20:37:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 164 transitions. [2024-11-12 20:37:54,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-12 20:37:54,334 INFO L175 Difference]: Start difference. First operand has 158 places, 527 transitions, 6771 flow. Second operand 8 states and 164 transitions. [2024-11-12 20:37:54,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 636 transitions, 9053 flow [2024-11-12 20:37:54,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 636 transitions, 8663 flow, removed 57 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:54,598 INFO L231 Difference]: Finished difference. Result has 160 places, 577 transitions, 7671 flow [2024-11-12 20:37:54,599 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6383, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7671, PETRI_PLACES=160, PETRI_TRANSITIONS=577} [2024-11-12 20:37:54,600 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2024-11-12 20:37:54,601 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 577 transitions, 7671 flow [2024-11-12 20:37:54,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:54,601 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:54,602 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:54,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 20:37:54,602 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:54,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash -39216106, now seen corresponding path program 1 times [2024-11-12 20:37:54,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:54,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365058230] [2024-11-12 20:37:54,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:54,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 20:37:54,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:54,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365058230] [2024-11-12 20:37:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365058230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:54,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:54,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:37:54,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603636648] [2024-11-12 20:37:54,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:54,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:54,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:54,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:54,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:54,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 577 transitions, 7671 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:54,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:54,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:54,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:55,994 INFO L124 PetriNetUnfolderBase]: 3654/7688 cut-off events. [2024-11-12 20:37:55,994 INFO L125 PetriNetUnfolderBase]: For 53516/53891 co-relation queries the response was YES. [2024-11-12 20:37:56,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36513 conditions, 7688 events. 3654/7688 cut-off events. For 53516/53891 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 55559 event pairs, 826 based on Foata normal form. 522/8123 useless extension candidates. Maximal degree in co-relation 36445. Up to 3652 conditions per place. [2024-11-12 20:37:56,061 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 546 selfloop transitions, 138 changer transitions 0/706 dead transitions. [2024-11-12 20:37:56,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 706 transitions, 10698 flow [2024-11-12 20:37:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-12 20:37:56,063 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-11-12 20:37:56,063 INFO L175 Difference]: Start difference. First operand has 160 places, 577 transitions, 7671 flow. Second operand 4 states and 107 transitions. [2024-11-12 20:37:56,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 706 transitions, 10698 flow [2024-11-12 20:37:56,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 706 transitions, 10468 flow, removed 86 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:56,332 INFO L231 Difference]: Finished difference. Result has 163 places, 587 transitions, 8221 flow [2024-11-12 20:37:56,333 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=7178, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=8221, PETRI_PLACES=163, PETRI_TRANSITIONS=587} [2024-11-12 20:37:56,334 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 125 predicate places. [2024-11-12 20:37:56,335 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 587 transitions, 8221 flow [2024-11-12 20:37:56,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:56,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:56,335 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:56,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 20:37:56,336 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:56,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:56,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1215700716, now seen corresponding path program 1 times [2024-11-12 20:37:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514509819] [2024-11-12 20:37:56,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:56,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:56,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:56,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:56,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514509819] [2024-11-12 20:37:56,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514509819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:56,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111843827] [2024-11-12 20:37:56,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:56,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:56,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:56,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:56,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 20:37:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:56,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:37:56,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:56,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:37:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111843827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:56,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:37:56,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-12 20:37:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263389812] [2024-11-12 20:37:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:56,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:56,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:56,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:56,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:56,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:56,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 587 transitions, 8221 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:56,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:56,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:56,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:58,465 INFO L124 PetriNetUnfolderBase]: 3753/7720 cut-off events. [2024-11-12 20:37:58,466 INFO L125 PetriNetUnfolderBase]: For 59559/59908 co-relation queries the response was YES. [2024-11-12 20:37:58,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38603 conditions, 7720 events. 3753/7720 cut-off events. For 59559/59908 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 54819 event pairs, 955 based on Foata normal form. 486/7998 useless extension candidates. Maximal degree in co-relation 38534. Up to 4613 conditions per place. [2024-11-12 20:37:58,520 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 562 selfloop transitions, 126 changer transitions 63/774 dead transitions. [2024-11-12 20:37:58,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 774 transitions, 12022 flow [2024-11-12 20:37:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:58,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-12 20:37:58,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-11-12 20:37:58,522 INFO L175 Difference]: Start difference. First operand has 163 places, 587 transitions, 8221 flow. Second operand 6 states and 156 transitions. [2024-11-12 20:37:58,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 774 transitions, 12022 flow [2024-11-12 20:37:58,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 774 transitions, 11998 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:58,742 INFO L231 Difference]: Finished difference. Result has 167 places, 586 transitions, 8445 flow [2024-11-12 20:37:58,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8193, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8445, PETRI_PLACES=167, PETRI_TRANSITIONS=586} [2024-11-12 20:37:58,743 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2024-11-12 20:37:58,743 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 586 transitions, 8445 flow [2024-11-12 20:37:58,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:58,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:58,744 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:58,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 20:37:58,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-12 20:37:58,944 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:37:58,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:58,945 INFO L85 PathProgramCache]: Analyzing trace with hash 967983861, now seen corresponding path program 1 times [2024-11-12 20:37:58,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:58,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111969753] [2024-11-12 20:37:58,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:59,036 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:59,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111969753] [2024-11-12 20:37:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111969753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284051057] [2024-11-12 20:37:59,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:59,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:59,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 20:37:59,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 20:37:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:59,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:37:59,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:59,157 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:59,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:59,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284051057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:59,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:59,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-12 20:37:59,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739749118] [2024-11-12 20:37:59,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:59,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 20:37:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:59,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 20:37:59,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-12 20:37:59,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-11-12 20:37:59,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 586 transitions, 8445 flow. Second operand has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:37:59,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:59,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-11-12 20:37:59,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:05,108 INFO L124 PetriNetUnfolderBase]: 11870/24045 cut-off events. [2024-11-12 20:38:05,108 INFO L125 PetriNetUnfolderBase]: For 191000/191973 co-relation queries the response was YES. [2024-11-12 20:38:05,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122243 conditions, 24045 events. 11870/24045 cut-off events. For 191000/191973 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 199904 event pairs, 2496 based on Foata normal form. 1396/25321 useless extension candidates. Maximal degree in co-relation 122173. Up to 6532 conditions per place. [2024-11-12 20:38:05,379 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 1687 selfloop transitions, 317 changer transitions 1/2028 dead transitions. [2024-11-12 20:38:05,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 2028 transitions, 32450 flow [2024-11-12 20:38:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 20:38:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 20:38:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-11-12 20:38:05,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6926829268292682 [2024-11-12 20:38:05,381 INFO L175 Difference]: Start difference. First operand has 167 places, 586 transitions, 8445 flow. Second operand 10 states and 284 transitions. [2024-11-12 20:38:05,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 2028 transitions, 32450 flow [2024-11-12 20:38:06,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 2028 transitions, 32383 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-12 20:38:06,358 INFO L231 Difference]: Finished difference. Result has 176 places, 884 transitions, 14211 flow [2024-11-12 20:38:06,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=8387, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14211, PETRI_PLACES=176, PETRI_TRANSITIONS=884} [2024-11-12 20:38:06,359 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 138 predicate places. [2024-11-12 20:38:06,359 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 884 transitions, 14211 flow [2024-11-12 20:38:06,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:06,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:06,359 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:06,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 20:38:06,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:38:06,560 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:38:06,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1120311519, now seen corresponding path program 1 times [2024-11-12 20:38:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582492863] [2024-11-12 20:38:06,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:06,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:06,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582492863] [2024-11-12 20:38:06,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582492863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:06,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:06,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-12 20:38:06,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107601049] [2024-11-12 20:38:06,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:06,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 20:38:06,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:06,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 20:38:06,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-12 20:38:07,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-11-12 20:38:07,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 884 transitions, 14211 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:07,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:07,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-11-12 20:38:07,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:16,522 INFO L124 PetriNetUnfolderBase]: 17555/35712 cut-off events. [2024-11-12 20:38:16,522 INFO L125 PetriNetUnfolderBase]: For 340457/341604 co-relation queries the response was YES. [2024-11-12 20:38:16,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185868 conditions, 35712 events. 17555/35712 cut-off events. For 340457/341604 co-relation queries the response was YES. Maximal size of possible extension queue 664. Compared 320289 event pairs, 4095 based on Foata normal form. 1607/37127 useless extension candidates. Maximal degree in co-relation 185795. Up to 21449 conditions per place. [2024-11-12 20:38:17,065 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 989 selfloop transitions, 503 changer transitions 0/1505 dead transitions. [2024-11-12 20:38:17,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 1505 transitions, 25950 flow [2024-11-12 20:38:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 20:38:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-12 20:38:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 440 transitions. [2024-11-12 20:38:17,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-11-12 20:38:17,067 INFO L175 Difference]: Start difference. First operand has 176 places, 884 transitions, 14211 flow. Second operand 22 states and 440 transitions. [2024-11-12 20:38:17,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 1505 transitions, 25950 flow [2024-11-12 20:38:19,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 1505 transitions, 25893 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-12 20:38:19,671 INFO L231 Difference]: Finished difference. Result has 209 places, 1303 transitions, 23763 flow [2024-11-12 20:38:19,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=13992, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=873, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=23763, PETRI_PLACES=209, PETRI_TRANSITIONS=1303} [2024-11-12 20:38:19,672 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 171 predicate places. [2024-11-12 20:38:19,673 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 1303 transitions, 23763 flow [2024-11-12 20:38:19,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:19,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:19,673 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:19,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 20:38:19,673 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:38:19,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1628873865, now seen corresponding path program 2 times [2024-11-12 20:38:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884804816] [2024-11-12 20:38:19,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884804816] [2024-11-12 20:38:19,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884804816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:19,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:19,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 20:38:19,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478279238] [2024-11-12 20:38:19,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:19,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 20:38:19,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 20:38:19,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 20:38:19,942 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-12 20:38:19,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 1303 transitions, 23763 flow. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:19,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:19,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-12 20:38:19,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:35,790 INFO L124 PetriNetUnfolderBase]: 23976/47422 cut-off events. [2024-11-12 20:38:35,790 INFO L125 PetriNetUnfolderBase]: For 599332/600490 co-relation queries the response was YES. [2024-11-12 20:38:36,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272028 conditions, 47422 events. 23976/47422 cut-off events. For 599332/600490 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 433071 event pairs, 5195 based on Foata normal form. 1209/48342 useless extension candidates. Maximal degree in co-relation 271939. Up to 29267 conditions per place. [2024-11-12 20:38:36,701 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 1388 selfloop transitions, 855 changer transitions 6/2261 dead transitions. [2024-11-12 20:38:36,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 2261 transitions, 45023 flow [2024-11-12 20:38:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-12 20:38:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-12 20:38:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 278 transitions. [2024-11-12 20:38:36,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4843205574912892 [2024-11-12 20:38:36,704 INFO L175 Difference]: Start difference. First operand has 209 places, 1303 transitions, 23763 flow. Second operand 14 states and 278 transitions. [2024-11-12 20:38:36,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 2261 transitions, 45023 flow [2024-11-12 20:38:42,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 2261 transitions, 44715 flow, removed 109 selfloop flow, removed 7 redundant places. [2024-11-12 20:38:43,013 INFO L231 Difference]: Finished difference. Result has 225 places, 1833 transitions, 37529 flow [2024-11-12 20:38:43,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=23567, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=37529, PETRI_PLACES=225, PETRI_TRANSITIONS=1833} [2024-11-12 20:38:43,014 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2024-11-12 20:38:43,015 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 1833 transitions, 37529 flow [2024-11-12 20:38:43,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:43,015 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:43,015 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:43,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 20:38:43,015 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:38:43,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:43,016 INFO L85 PathProgramCache]: Analyzing trace with hash -663688399, now seen corresponding path program 3 times [2024-11-12 20:38:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:43,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403421027] [2024-11-12 20:38:43,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:38:43,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403421027] [2024-11-12 20:38:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403421027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:43,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:43,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 20:38:43,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342357749] [2024-11-12 20:38:43,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:43,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 20:38:43,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:43,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 20:38:43,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-12 20:38:43,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-11-12 20:38:43,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 1833 transitions, 37529 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:43,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:43,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-11-12 20:38:43,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand