./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/weaver/chl-word-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:56:31,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:56:31,996 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:56:32,003 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:56:32,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:56:32,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:56:32,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:56:32,028 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:56:32,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:56:32,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:56:32,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:56:32,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:56:32,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:56:32,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:56:32,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:56:32,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:56:32,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:56:32,030 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:56:32,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:56:32,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:56:32,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:56:32,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:56:32,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:56:32,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:56:32,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:56:32,032 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:56:32,032 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:56:32,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:56:32,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:56:32,033 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:56:32,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:56:32,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:56:32,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:56:32,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:56:32,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:56:32,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:56:32,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:56:32,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:56:32,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:56:32,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:56:32,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:56:32,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:56:32,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:56:32,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:56:32,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 [2024-11-23 01:56:32,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:56:32,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:56:32,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:56:32,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:56:32,273 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:56:32,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-23 01:56:33,618 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:56:33,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:56:33,781 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-23 01:56:33,791 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312d335ef/6d78b3910d4c40feb6890d5136346766/FLAG0887f6db9 [2024-11-23 01:56:33,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/312d335ef/6d78b3910d4c40feb6890d5136346766 [2024-11-23 01:56:33,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:56:33,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:56:33,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:56:33,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:56:33,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:56:33,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:33" (1/1) ... [2024-11-23 01:56:33,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dbc93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:33, skipping insertion in model container [2024-11-23 01:56:33,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:33" (1/1) ... [2024-11-23 01:56:33,831 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:56:34,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:56:34,024 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:56:34,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:56:34,060 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:56:34,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34 WrapperNode [2024-11-23 01:56:34,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:56:34,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:56:34,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:56:34,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:56:34,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,093 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 173 [2024-11-23 01:56:34,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:56:34,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:56:34,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:56:34,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:56:34,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,128 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-23 01:56:34,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:56:34,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:56:34,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:56:34,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:56:34,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (1/1) ... [2024-11-23 01:56:34,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:56:34,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:56:34,191 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) [2024-11-23 01:56:34,193 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 [2024-11-23 01:56:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:56:34,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 01:56:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 01:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 01:56:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 01:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 01:56:34,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 01:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:56:34,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:56:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 01:56:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 01:56:34,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:56:34,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:56:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:56:34,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 01:56:34,242 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:56:34,364 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:56:34,367 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:56:34,855 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:56:34,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:56:35,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:56:35,108 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 01:56:35,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:35 BoogieIcfgContainer [2024-11-23 01:56:35,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:56:35,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:56:35,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:56:35,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:56:35,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:33" (1/3) ... [2024-11-23 01:56:35,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7138e7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:35, skipping insertion in model container [2024-11-23 01:56:35,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:34" (2/3) ... [2024-11-23 01:56:35,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7138e7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:56:35, skipping insertion in model container [2024-11-23 01:56:35,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:56:35" (3/3) ... [2024-11-23 01:56:35,118 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2024-11-23 01:56:35,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:56:35,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-23 01:56:35,135 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:56:35,215 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 01:56:35,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 199 flow [2024-11-23 01:56:35,278 INFO L124 PetriNetUnfolderBase]: 15/86 cut-off events. [2024-11-23 01:56:35,279 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-23 01:56:35,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 15/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 263 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2024-11-23 01:56:35,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 89 transitions, 199 flow [2024-11-23 01:56:35,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 84 transitions, 183 flow [2024-11-23 01:56:35,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:56:35,307 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;@68c47268, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:56:35,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-23 01:56:35,309 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:56:35,309 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-23 01:56:35,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:56:35,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:35,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-23 01:56:35,311 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:35,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash 776768, now seen corresponding path program 1 times [2024-11-23 01:56:35,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:35,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384137418] [2024-11-23 01:56:35,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:35,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:35,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:35,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384137418] [2024-11-23 01:56:35,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384137418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:35,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:35,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:56:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420934067] [2024-11-23 01:56:35,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:35,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:56:35,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:56:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:56:35,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-23 01:56:35,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2024-11-23 01:56:35,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:35,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-23 01:56:35,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:36,216 INFO L124 PetriNetUnfolderBase]: 4003/6628 cut-off events. [2024-11-23 01:56:36,216 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-23 01:56:36,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11955 conditions, 6628 events. 4003/6628 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 42102 event pairs, 2534 based on Foata normal form. 3/4630 useless extension candidates. Maximal degree in co-relation 11334. Up to 5097 conditions per place. [2024-11-23 01:56:36,293 INFO L140 encePairwiseOnDemand]: 73/89 looper letters, 53 selfloop transitions, 10 changer transitions 0/93 dead transitions. [2024-11-23 01:56:36,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 93 transitions, 327 flow [2024-11-23 01:56:36,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:56:36,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:56:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-11-23 01:56:36,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5646067415730337 [2024-11-23 01:56:36,306 INFO L175 Difference]: Start difference. First operand has 79 places, 84 transitions, 183 flow. Second operand 4 states and 201 transitions. [2024-11-23 01:56:36,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 93 transitions, 327 flow [2024-11-23 01:56:36,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 93 transitions, 318 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-23 01:56:36,319 INFO L231 Difference]: Finished difference. Result has 80 places, 93 transitions, 262 flow [2024-11-23 01:56:36,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=80, PETRI_TRANSITIONS=93} [2024-11-23 01:56:36,324 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 1 predicate places. [2024-11-23 01:56:36,325 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 93 transitions, 262 flow [2024-11-23 01:56:36,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2024-11-23 01:56:36,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:36,326 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-23 01:56:36,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:56:36,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:36,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:36,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1666630010, now seen corresponding path program 1 times [2024-11-23 01:56:36,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:36,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905968718] [2024-11-23 01:56:36,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:36,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:36,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:36,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905968718] [2024-11-23 01:56:36,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905968718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:56:36,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826736885] [2024-11-23 01:56:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:36,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:56:36,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:56:36,442 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) [2024-11-23 01:56:36,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 01:56:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:36,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:56:36,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:56:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:36,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:56:36,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826736885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:36,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:56:36,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-23 01:56:36,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133416152] [2024-11-23 01:56:36,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:36,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:56:36,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:36,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:56:36,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:56:36,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-23 01:56:36,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 93 transitions, 262 flow. Second operand has 6 states, 6 states have (on average 33.833333333333336) internal successors, (203), 6 states have internal predecessors, (203), 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) [2024-11-23 01:56:36,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:36,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-23 01:56:36,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:37,094 INFO L124 PetriNetUnfolderBase]: 4003/6625 cut-off events. [2024-11-23 01:56:37,095 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-23 01:56:37,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11900 conditions, 6625 events. 4003/6625 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 42052 event pairs, 2534 based on Foata normal form. 3/4632 useless extension candidates. Maximal degree in co-relation 11827. Up to 5082 conditions per place. [2024-11-23 01:56:37,139 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 43 selfloop transitions, 17 changer transitions 0/90 dead transitions. [2024-11-23 01:56:37,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 370 flow [2024-11-23 01:56:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:56:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:56:37,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 261 transitions. [2024-11-23 01:56:37,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4887640449438202 [2024-11-23 01:56:37,143 INFO L175 Difference]: Start difference. First operand has 80 places, 93 transitions, 262 flow. Second operand 6 states and 261 transitions. [2024-11-23 01:56:37,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 370 flow [2024-11-23 01:56:37,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 90 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 01:56:37,146 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 284 flow [2024-11-23 01:56:37,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=284, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2024-11-23 01:56:37,147 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2024-11-23 01:56:37,147 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 90 transitions, 284 flow [2024-11-23 01:56:37,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.833333333333336) internal successors, (203), 6 states have internal predecessors, (203), 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) [2024-11-23 01:56:37,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:37,147 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-23 01:56:37,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 01:56:37,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:56:37,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:37,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:37,349 INFO L85 PathProgramCache]: Analyzing trace with hash 125923534, now seen corresponding path program 1 times [2024-11-23 01:56:37,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:37,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794001008] [2024-11-23 01:56:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:37,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:37,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:37,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794001008] [2024-11-23 01:56:37,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794001008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:56:37,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440087638] [2024-11-23 01:56:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:37,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:56:37,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:56:37,482 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) [2024-11-23 01:56:37,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 01:56:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:37,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:56:37,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:56:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:37,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:56:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:37,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440087638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:56:37,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:56:37,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-23 01:56:37,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100460510] [2024-11-23 01:56:37,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:56:37,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 01:56:37,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:37,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 01:56:37,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:56:37,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-23 01:56:37,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 90 transitions, 284 flow. Second operand has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 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) [2024-11-23 01:56:37,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:37,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-23 01:56:37,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:38,321 INFO L124 PetriNetUnfolderBase]: 4012/6661 cut-off events. [2024-11-23 01:56:38,321 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-23 01:56:38,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12041 conditions, 6661 events. 4012/6661 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 42472 event pairs, 2534 based on Foata normal form. 9/4674 useless extension candidates. Maximal degree in co-relation 11829. Up to 5097 conditions per place. [2024-11-23 01:56:38,365 INFO L140 encePairwiseOnDemand]: 76/89 looper letters, 50 selfloop transitions, 37 changer transitions 0/117 dead transitions. [2024-11-23 01:56:38,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 117 transitions, 632 flow [2024-11-23 01:56:38,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:56:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:56:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 426 transitions. [2024-11-23 01:56:38,370 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4786516853932584 [2024-11-23 01:56:38,370 INFO L175 Difference]: Start difference. First operand has 82 places, 90 transitions, 284 flow. Second operand 10 states and 426 transitions. [2024-11-23 01:56:38,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 117 transitions, 632 flow [2024-11-23 01:56:38,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 117 transitions, 549 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-23 01:56:38,376 INFO L231 Difference]: Finished difference. Result has 89 places, 117 transitions, 499 flow [2024-11-23 01:56:38,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=89, PETRI_TRANSITIONS=117} [2024-11-23 01:56:38,379 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 10 predicate places. [2024-11-23 01:56:38,379 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 117 transitions, 499 flow [2024-11-23 01:56:38,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 34.083333333333336) internal successors, (409), 12 states have internal predecessors, (409), 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) [2024-11-23 01:56:38,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:38,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:38,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 01:56:38,580 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,SelfDestructingSolverStorable2 [2024-11-23 01:56:38,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:38,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1491485579, now seen corresponding path program 1 times [2024-11-23 01:56:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:38,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031935902] [2024-11-23 01:56:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:38,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:38,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:38,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031935902] [2024-11-23 01:56:38,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031935902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:38,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:38,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:56:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559406428] [2024-11-23 01:56:38,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:38,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:56:38,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:56:38,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:56:38,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-23 01:56:38,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 117 transitions, 499 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-23 01:56:38,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:38,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-23 01:56:38,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:39,438 INFO L124 PetriNetUnfolderBase]: 7217/10894 cut-off events. [2024-11-23 01:56:39,438 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2024-11-23 01:56:39,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20680 conditions, 10894 events. 7217/10894 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 63683 event pairs, 3494 based on Foata normal form. 146/7925 useless extension candidates. Maximal degree in co-relation 20582. Up to 6976 conditions per place. [2024-11-23 01:56:39,507 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 139 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2024-11-23 01:56:39,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 173 transitions, 903 flow [2024-11-23 01:56:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:56:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:56:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-11-23 01:56:39,508 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-11-23 01:56:39,509 INFO L175 Difference]: Start difference. First operand has 89 places, 117 transitions, 499 flow. Second operand 4 states and 253 transitions. [2024-11-23 01:56:39,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 173 transitions, 903 flow [2024-11-23 01:56:39,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 173 transitions, 866 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-23 01:56:39,514 INFO L231 Difference]: Finished difference. Result has 92 places, 120 transitions, 491 flow [2024-11-23 01:56:39,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=491, PETRI_PLACES=92, PETRI_TRANSITIONS=120} [2024-11-23 01:56:39,515 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 13 predicate places. [2024-11-23 01:56:39,516 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 120 transitions, 491 flow [2024-11-23 01:56:39,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-23 01:56:39,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:39,517 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:39,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 01:56:39,517 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:39,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1008619896, now seen corresponding path program 1 times [2024-11-23 01:56:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734591751] [2024-11-23 01:56:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:39,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:39,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734591751] [2024-11-23 01:56:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734591751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:39,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:39,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:56:39,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137928857] [2024-11-23 01:56:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:39,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:56:39,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:56:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:56:39,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-23 01:56:39,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 120 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-11-23 01:56:39,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:39,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-23 01:56:39,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:41,002 INFO L124 PetriNetUnfolderBase]: 13551/22409 cut-off events. [2024-11-23 01:56:41,003 INFO L125 PetriNetUnfolderBase]: For 2780/2780 co-relation queries the response was YES. [2024-11-23 01:56:41,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42722 conditions, 22409 events. 13551/22409 cut-off events. For 2780/2780 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 170572 event pairs, 8268 based on Foata normal form. 230/16741 useless extension candidates. Maximal degree in co-relation 42598. Up to 8647 conditions per place. [2024-11-23 01:56:41,191 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 135 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2024-11-23 01:56:41,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 176 transitions, 974 flow [2024-11-23 01:56:41,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:56:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:56:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions. [2024-11-23 01:56:41,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6314606741573033 [2024-11-23 01:56:41,192 INFO L175 Difference]: Start difference. First operand has 92 places, 120 transitions, 491 flow. Second operand 5 states and 281 transitions. [2024-11-23 01:56:41,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 176 transitions, 974 flow [2024-11-23 01:56:41,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 176 transitions, 969 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:56:41,199 INFO L231 Difference]: Finished difference. Result has 97 places, 121 transitions, 522 flow [2024-11-23 01:56:41,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=522, PETRI_PLACES=97, PETRI_TRANSITIONS=121} [2024-11-23 01:56:41,200 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 18 predicate places. [2024-11-23 01:56:41,201 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 121 transitions, 522 flow [2024-11-23 01:56:41,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-11-23 01:56:41,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:41,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:41,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:56:41,201 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:41,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash 763029596, now seen corresponding path program 1 times [2024-11-23 01:56:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596206716] [2024-11-23 01:56:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:41,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:41,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:41,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596206716] [2024-11-23 01:56:41,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596206716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:41,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:41,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:56:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451834289] [2024-11-23 01:56:41,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:41,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:56:41,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:41,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:56:41,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:56:41,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-23 01:56:41,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 121 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-11-23 01:56:41,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:41,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-23 01:56:41,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:43,317 INFO L124 PetriNetUnfolderBase]: 22204/33004 cut-off events. [2024-11-23 01:56:43,317 INFO L125 PetriNetUnfolderBase]: For 4096/4456 co-relation queries the response was YES. [2024-11-23 01:56:43,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66410 conditions, 33004 events. 22204/33004 cut-off events. For 4096/4456 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 217860 event pairs, 10634 based on Foata normal form. 448/25807 useless extension candidates. Maximal degree in co-relation 66282. Up to 21124 conditions per place. [2024-11-23 01:56:43,563 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 143 selfloop transitions, 4 changer transitions 0/179 dead transitions. [2024-11-23 01:56:43,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 179 transitions, 962 flow [2024-11-23 01:56:43,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:56:43,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:56:43,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-23 01:56:43,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-23 01:56:43,566 INFO L175 Difference]: Start difference. First operand has 97 places, 121 transitions, 522 flow. Second operand 4 states and 251 transitions. [2024-11-23 01:56:43,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 179 transitions, 962 flow [2024-11-23 01:56:43,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 179 transitions, 959 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-23 01:56:43,575 INFO L231 Difference]: Finished difference. Result has 101 places, 124 transitions, 548 flow [2024-11-23 01:56:43,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=548, PETRI_PLACES=101, PETRI_TRANSITIONS=124} [2024-11-23 01:56:43,575 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 22 predicate places. [2024-11-23 01:56:43,576 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 124 transitions, 548 flow [2024-11-23 01:56:43,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-11-23 01:56:43,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:43,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:43,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 01:56:43,576 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:43,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:43,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1202446551, now seen corresponding path program 1 times [2024-11-23 01:56:43,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:43,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552756091] [2024-11-23 01:56:43,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:43,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:43,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552756091] [2024-11-23 01:56:43,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552756091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:43,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:43,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:56:43,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007078279] [2024-11-23 01:56:43,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:43,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:56:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:56:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:56:43,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-23 01:56:43,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 124 transitions, 548 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-11-23 01:56:43,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:43,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-23 01:56:43,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:47,549 INFO L124 PetriNetUnfolderBase]: 39672/66276 cut-off events. [2024-11-23 01:56:47,550 INFO L125 PetriNetUnfolderBase]: For 18639/18711 co-relation queries the response was YES. [2024-11-23 01:56:47,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135360 conditions, 66276 events. 39672/66276 cut-off events. For 18639/18711 co-relation queries the response was YES. Maximal size of possible extension queue 2561. Compared 581585 event pairs, 24248 based on Foata normal form. 656/54034 useless extension candidates. Maximal degree in co-relation 135145. Up to 24784 conditions per place. [2024-11-23 01:56:48,104 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 155 selfloop transitions, 12 changer transitions 0/200 dead transitions. [2024-11-23 01:56:48,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 200 transitions, 1212 flow [2024-11-23 01:56:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 01:56:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 01:56:48,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 364 transitions. [2024-11-23 01:56:48,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5842696629213483 [2024-11-23 01:56:48,106 INFO L175 Difference]: Start difference. First operand has 101 places, 124 transitions, 548 flow. Second operand 7 states and 364 transitions. [2024-11-23 01:56:48,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 200 transitions, 1212 flow [2024-11-23 01:56:48,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 200 transitions, 1207 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:56:48,148 INFO L231 Difference]: Finished difference. Result has 111 places, 133 transitions, 667 flow [2024-11-23 01:56:48,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=667, PETRI_PLACES=111, PETRI_TRANSITIONS=133} [2024-11-23 01:56:48,150 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 32 predicate places. [2024-11-23 01:56:48,150 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 133 transitions, 667 flow [2024-11-23 01:56:48,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 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) [2024-11-23 01:56:48,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:48,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:48,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:56:48,152 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:48,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2115853692, now seen corresponding path program 1 times [2024-11-23 01:56:48,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:48,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854016459] [2024-11-23 01:56:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:48,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:48,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:48,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:48,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854016459] [2024-11-23 01:56:48,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854016459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:48,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:56:48,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 01:56:48,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934622053] [2024-11-23 01:56:48,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:48,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 01:56:48,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:48,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 01:56:48,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 01:56:48,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-23 01:56:48,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 133 transitions, 667 flow. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2024-11-23 01:56:48,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:48,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-23 01:56:48,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:56:56,383 INFO L124 PetriNetUnfolderBase]: 82740/136532 cut-off events. [2024-11-23 01:56:56,383 INFO L125 PetriNetUnfolderBase]: For 25675/25819 co-relation queries the response was YES. [2024-11-23 01:56:57,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273074 conditions, 136532 events. 82740/136532 cut-off events. For 25675/25819 co-relation queries the response was YES. Maximal size of possible extension queue 5112. Compared 1285217 event pairs, 50552 based on Foata normal form. 920/108364 useless extension candidates. Maximal degree in co-relation 272852. Up to 52400 conditions per place. [2024-11-23 01:56:57,843 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 121 selfloop transitions, 20 changer transitions 0/176 dead transitions. [2024-11-23 01:56:57,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 176 transitions, 1065 flow [2024-11-23 01:56:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:56:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:56:57,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions. [2024-11-23 01:56:57,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6247191011235955 [2024-11-23 01:56:57,845 INFO L175 Difference]: Start difference. First operand has 111 places, 133 transitions, 667 flow. Second operand 5 states and 278 transitions. [2024-11-23 01:56:57,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 176 transitions, 1065 flow [2024-11-23 01:56:57,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 176 transitions, 1063 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-23 01:56:57,916 INFO L231 Difference]: Finished difference. Result has 117 places, 134 transitions, 722 flow [2024-11-23 01:56:57,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=722, PETRI_PLACES=117, PETRI_TRANSITIONS=134} [2024-11-23 01:56:57,916 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 38 predicate places. [2024-11-23 01:56:57,916 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 134 transitions, 722 flow [2024-11-23 01:56:57,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 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) [2024-11-23 01:56:57,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:56:57,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:56:57,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 01:56:57,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:56:57,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:56:57,918 INFO L85 PathProgramCache]: Analyzing trace with hash -674956817, now seen corresponding path program 1 times [2024-11-23 01:56:57,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:56:57,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53646210] [2024-11-23 01:56:57,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:57,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:56:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:56:58,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:56:58,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53646210] [2024-11-23 01:56:58,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53646210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:56:58,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655973877] [2024-11-23 01:56:58,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:56:58,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:56:58,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:56:58,019 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) [2024-11-23 01:56:58,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 01:56:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:56:58,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:56:58,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:56:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 01:56:58,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:56:58,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655973877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:56:58,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:56:58,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-11-23 01:56:58,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478996487] [2024-11-23 01:56:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:56:58,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:56:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:56:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:56:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:56:58,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89 [2024-11-23 01:56:58,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 134 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-11-23 01:56:58,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:56:58,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89 [2024-11-23 01:56:58,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:05,673 INFO L124 PetriNetUnfolderBase]: 74320/124980 cut-off events. [2024-11-23 01:57:05,673 INFO L125 PetriNetUnfolderBase]: For 32565/32709 co-relation queries the response was YES. [2024-11-23 01:57:06,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250851 conditions, 124980 events. 74320/124980 cut-off events. For 32565/32709 co-relation queries the response was YES. Maximal size of possible extension queue 4460. Compared 1185120 event pairs, 46544 based on Foata normal form. 1496/101512 useless extension candidates. Maximal degree in co-relation 250623. Up to 92978 conditions per place. [2024-11-23 01:57:07,059 INFO L140 encePairwiseOnDemand]: 87/89 looper letters, 95 selfloop transitions, 1 changer transitions 0/132 dead transitions. [2024-11-23 01:57:07,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 132 transitions, 900 flow [2024-11-23 01:57:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:57:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:57:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 163 transitions. [2024-11-23 01:57:07,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6104868913857678 [2024-11-23 01:57:07,064 INFO L175 Difference]: Start difference. First operand has 117 places, 134 transitions, 722 flow. Second operand 3 states and 163 transitions. [2024-11-23 01:57:07,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 132 transitions, 900 flow [2024-11-23 01:57:07,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 132 transitions, 858 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-23 01:57:07,133 INFO L231 Difference]: Finished difference. Result has 113 places, 132 transitions, 668 flow [2024-11-23 01:57:07,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=113, PETRI_TRANSITIONS=132} [2024-11-23 01:57:07,134 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 34 predicate places. [2024-11-23 01:57:07,134 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 132 transitions, 668 flow [2024-11-23 01:57:07,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2024-11-23 01:57:07,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:07,135 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:07,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 01:57:07,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:07,336 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-23 01:57:07,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1166954146, now seen corresponding path program 1 times [2024-11-23 01:57:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556962885] [2024-11-23 01:57:07,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:07,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:07,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:07,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556962885] [2024-11-23 01:57:07,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556962885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:07,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:07,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:07,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637764083] [2024-11-23 01:57:07,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:07,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:07,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:07,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:07,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:07,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-23 01:57:07,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 132 transitions, 668 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:57:07,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:07,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-23 01:57:07,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand