./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.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 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:01:49,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:01:49,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:01:49,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:01:49,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:01:49,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:01:49,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:01:49,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:01:49,737 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:01:49,738 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:01:49,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:01:49,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:01:49,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:01:49,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:01:49,742 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:01:49,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:01:49,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:01:49,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:01:49,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:01:49,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:01:49,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:01:49,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:01:49,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:01:49,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:01:49,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:01:49,745 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:01:49,746 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:01:49,746 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:01:49,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:01:49,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:01:49,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:01:49,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:01:49,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:01:49,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:01:49,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:01:49,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:01:49,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:01:49,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:01:49,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:01:49,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:01:49,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:01:49,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:01:49,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:01:49,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:01:49,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf746ef76f8c8352051d8eb5f02d7a475e14d238622e290fcb51135a3348206 [2024-11-20 22:01:50,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:01:50,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:01:50,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:01:50,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:01:50,057 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:01:50,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-20 22:01:51,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:01:51,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:01:51,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-commit-2.wvr-bad.c [2024-11-20 22:01:51,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544a68217/8761185362e745b0afc641a9a784d123/FLAG06dd5bf16 [2024-11-20 22:01:51,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/544a68217/8761185362e745b0afc641a9a784d123 [2024-11-20 22:01:51,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:01:51,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:01:51,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:01:51,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:01:51,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:01:51,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:51" (1/1) ... [2024-11-20 22:01:51,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fbe490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:51, skipping insertion in model container [2024-11-20 22:01:51,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:01:51" (1/1) ... [2024-11-20 22:01:51,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:01:52,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:01:52,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:01:52,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:01:52,095 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:01:52,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52 WrapperNode [2024-11-20 22:01:52,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:01:52,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:01:52,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:01:52,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:01:52,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,148 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 495 [2024-11-20 22:01:52,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:01:52,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:01:52,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:01:52,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:01:52,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,186 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-20 22:01:52,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,213 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:01:52,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:01:52,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:01:52,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:01:52,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (1/1) ... [2024-11-20 22:01:52,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:01:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:01:52,252 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) [2024-11-20 22:01:52,257 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 [2024-11-20 22:01:52,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:01:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:01:52,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:01:52,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:01:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:01:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 22:01:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 22:01:52,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-20 22:01:52,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-20 22:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 22:01:52,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 22:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 22:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 22:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 22:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 22:01:52,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:01:52,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:01:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 22:01:52,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 22:01:52,317 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 22:01:52,428 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:01:52,430 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:01:53,138 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:01:53,139 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:01:53,627 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:01:53,629 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-20 22:01:53,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:53 BoogieIcfgContainer [2024-11-20 22:01:53,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:01:53,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:01:53,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:01:53,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:01:53,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:01:51" (1/3) ... [2024-11-20 22:01:53,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fd1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:53, skipping insertion in model container [2024-11-20 22:01:53,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:01:52" (2/3) ... [2024-11-20 22:01:53,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b8fd1c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:01:53, skipping insertion in model container [2024-11-20 22:01:53,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:01:53" (3/3) ... [2024-11-20 22:01:53,640 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-commit-2.wvr-bad.c [2024-11-20 22:01:53,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:01:53,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-11-20 22:01:53,660 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:01:53,765 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-20 22:01:53,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 122 transitions, 272 flow [2024-11-20 22:01:53,870 INFO L124 PetriNetUnfolderBase]: 24/118 cut-off events. [2024-11-20 22:01:53,870 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 22:01:53,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 118 events. 24/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 417 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 102. Up to 8 conditions per place. [2024-11-20 22:01:53,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 122 transitions, 272 flow [2024-11-20 22:01:53,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 116 transitions, 253 flow [2024-11-20 22:01:53,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:01:53,902 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;@21c0c973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:01:53,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-20 22:01:53,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:01:53,908 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 22:01:53,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:01:53,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:01:53,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 22:01:53,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:01:53,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:01:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1446319, now seen corresponding path program 1 times [2024-11-20 22:01:53,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:01:53,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025172912] [2024-11-20 22:01:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:01:53,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:01:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:01:54,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:01:54,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:01:54,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025172912] [2024-11-20 22:01:54,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025172912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:01:54,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:01:54,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:01:54,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596032604] [2024-11-20 22:01:54,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:01:54,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:01:54,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:01:54,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:01:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:01:54,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-20 22:01:54,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 116 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:01:54,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:01:54,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-20 22:01:54,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:01:59,965 INFO L124 PetriNetUnfolderBase]: 40188/53468 cut-off events. [2024-11-20 22:01:59,965 INFO L125 PetriNetUnfolderBase]: For 1549/1549 co-relation queries the response was YES. [2024-11-20 22:02:00,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103197 conditions, 53468 events. 40188/53468 cut-off events. For 1549/1549 co-relation queries the response was YES. Maximal size of possible extension queue 3601. Compared 344949 event pairs, 26584 based on Foata normal form. 4/33216 useless extension candidates. Maximal degree in co-relation 99324. Up to 48058 conditions per place. [2024-11-20 22:02:00,384 INFO L140 encePairwiseOnDemand]: 85/122 looper letters, 71 selfloop transitions, 13 changer transitions 0/112 dead transitions. [2024-11-20 22:02:00,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 112 transitions, 413 flow [2024-11-20 22:02:00,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:02:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:02:00,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2024-11-20 22:02:00,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48360655737704916 [2024-11-20 22:02:00,400 INFO L175 Difference]: Start difference. First operand has 105 places, 116 transitions, 253 flow. Second operand 4 states and 236 transitions. [2024-11-20 22:02:00,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 112 transitions, 413 flow [2024-11-20 22:02:00,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 112 transitions, 400 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-20 22:02:00,433 INFO L231 Difference]: Finished difference. Result has 92 places, 112 transitions, 324 flow [2024-11-20 22:02:00,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=92, PETRI_TRANSITIONS=112} [2024-11-20 22:02:00,439 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -13 predicate places. [2024-11-20 22:02:00,440 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 112 transitions, 324 flow [2024-11-20 22:02:00,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:02:00,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:02:00,440 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 22:02:00,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:02:00,441 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:02:00,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:02:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 139082869, now seen corresponding path program 1 times [2024-11-20 22:02:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:02:00,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914134951] [2024-11-20 22:02:00,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:00,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:02:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:02:00,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914134951] [2024-11-20 22:02:00,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914134951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:02:00,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505698191] [2024-11-20 22:02:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:02:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:02:00,603 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) [2024-11-20 22:02:00,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:02:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:00,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:02:00,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:02:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:00,761 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:02:00,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505698191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:02:00,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:02:00,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 22:02:00,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198624358] [2024-11-20 22:02:00,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:02:00,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:02:00,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:02:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:02:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:02:00,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-20 22:02:00,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 112 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2024-11-20 22:02:00,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:02:00,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-20 22:02:00,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:02:04,774 INFO L124 PetriNetUnfolderBase]: 40188/53464 cut-off events. [2024-11-20 22:02:04,774 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-20 22:02:04,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102742 conditions, 53464 events. 40188/53464 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 3601. Compared 345012 event pairs, 26584 based on Foata normal form. 4/33219 useless extension candidates. Maximal degree in co-relation 102646. Up to 48038 conditions per place. [2024-11-20 22:02:05,136 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 58 selfloop transitions, 22 changer transitions 0/108 dead transitions. [2024-11-20 22:02:05,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 108 transitions, 468 flow [2024-11-20 22:02:05,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:02:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:02:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2024-11-20 22:02:05,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3770491803278688 [2024-11-20 22:02:05,140 INFO L175 Difference]: Start difference. First operand has 92 places, 112 transitions, 324 flow. Second operand 6 states and 276 transitions. [2024-11-20 22:02:05,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 108 transitions, 468 flow [2024-11-20 22:02:05,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 108 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 22:02:05,143 INFO L231 Difference]: Finished difference. Result has 93 places, 108 transitions, 352 flow [2024-11-20 22:02:05,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=352, PETRI_PLACES=93, PETRI_TRANSITIONS=108} [2024-11-20 22:02:05,144 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -12 predicate places. [2024-11-20 22:02:05,144 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 108 transitions, 352 flow [2024-11-20 22:02:05,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.833333333333336) internal successors, (197), 6 states have internal predecessors, (197), 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) [2024-11-20 22:02:05,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:02:05,145 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 22:02:05,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 22:02:05,345 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 [2024-11-20 22:02:05,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:02:05,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:02:05,347 INFO L85 PathProgramCache]: Analyzing trace with hash 16603118, now seen corresponding path program 1 times [2024-11-20 22:02:05,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:02:05,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755545618] [2024-11-20 22:02:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:05,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:02:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:05,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:02:05,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755545618] [2024-11-20 22:02:05,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755545618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:02:05,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614371184] [2024-11-20 22:02:05,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:05,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:02:05,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:02:05,431 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) [2024-11-20 22:02:05,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:02:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:05,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:02:05,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:02:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:05,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:02:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:05,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614371184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:02:05,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:02:05,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-20 22:02:05,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152978647] [2024-11-20 22:02:05,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:02:05,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:02:05,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:02:05,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:02:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:02:05,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 122 [2024-11-20 22:02:05,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 108 transitions, 352 flow. Second operand has 12 states, 12 states have (on average 33.083333333333336) internal successors, (397), 12 states have internal predecessors, (397), 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) [2024-11-20 22:02:05,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:02:05,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 122 [2024-11-20 22:02:05,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:02:09,601 INFO L124 PetriNetUnfolderBase]: 40200/53512 cut-off events. [2024-11-20 22:02:09,601 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2024-11-20 22:02:09,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102930 conditions, 53512 events. 40200/53512 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 3600. Compared 345345 event pairs, 26584 based on Foata normal form. 12/33276 useless extension candidates. Maximal degree in co-relation 102648. Up to 48057 conditions per place. [2024-11-20 22:02:09,971 INFO L140 encePairwiseOnDemand]: 105/122 looper letters, 67 selfloop transitions, 49 changer transitions 0/144 dead transitions. [2024-11-20 22:02:09,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 144 transitions, 818 flow [2024-11-20 22:02:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:02:09,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:02:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 448 transitions. [2024-11-20 22:02:09,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36721311475409835 [2024-11-20 22:02:09,975 INFO L175 Difference]: Start difference. First operand has 93 places, 108 transitions, 352 flow. Second operand 10 states and 448 transitions. [2024-11-20 22:02:09,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 144 transitions, 818 flow [2024-11-20 22:02:09,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 144 transitions, 710 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-11-20 22:02:09,980 INFO L231 Difference]: Finished difference. Result has 100 places, 144 transitions, 642 flow [2024-11-20 22:02:09,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=642, PETRI_PLACES=100, PETRI_TRANSITIONS=144} [2024-11-20 22:02:09,981 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -5 predicate places. [2024-11-20 22:02:09,981 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 144 transitions, 642 flow [2024-11-20 22:02:09,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 33.083333333333336) internal successors, (397), 12 states have internal predecessors, (397), 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) [2024-11-20 22:02:09,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:02:09,983 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:02:09,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 22:02:10,184 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 [2024-11-20 22:02:10,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:02:10,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:02:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash -917776677, now seen corresponding path program 1 times [2024-11-20 22:02:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:02:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353909310] [2024-11-20 22:02:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:02:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:10,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:02:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353909310] [2024-11-20 22:02:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353909310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:02:10,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:02:10,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:02:10,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109442416] [2024-11-20 22:02:10,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:02:10,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:02:10,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:02:10,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:02:10,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:02:10,276 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 122 [2024-11-20 22:02:10,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 144 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:02:10,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:02:10,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 122 [2024-11-20 22:02:10,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:02:16,229 INFO L124 PetriNetUnfolderBase]: 68337/91069 cut-off events. [2024-11-20 22:02:16,229 INFO L125 PetriNetUnfolderBase]: For 854/854 co-relation queries the response was YES. [2024-11-20 22:02:16,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175384 conditions, 91069 events. 68337/91069 cut-off events. For 854/854 co-relation queries the response was YES. Maximal size of possible extension queue 5146. Compared 611142 event pairs, 21415 based on Foata normal form. 2363/60168 useless extension candidates. Maximal degree in co-relation 175255. Up to 50735 conditions per place. [2024-11-20 22:02:17,007 INFO L140 encePairwiseOnDemand]: 112/122 looper letters, 150 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2024-11-20 22:02:17,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 186 transitions, 1040 flow [2024-11-20 22:02:17,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:02:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:02:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2024-11-20 22:02:17,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6338797814207651 [2024-11-20 22:02:17,009 INFO L175 Difference]: Start difference. First operand has 100 places, 144 transitions, 642 flow. Second operand 3 states and 232 transitions. [2024-11-20 22:02:17,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 186 transitions, 1040 flow [2024-11-20 22:02:17,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 186 transitions, 990 flow, removed 12 selfloop flow, removed 2 redundant places. [2024-11-20 22:02:17,014 INFO L231 Difference]: Finished difference. Result has 101 places, 147 transitions, 628 flow [2024-11-20 22:02:17,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=101, PETRI_TRANSITIONS=147} [2024-11-20 22:02:17,016 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -4 predicate places. [2024-11-20 22:02:17,016 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 147 transitions, 628 flow [2024-11-20 22:02:17,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:02:17,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:02:17,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:02:17,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 22:02:17,017 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:02:17,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:02:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1613696648, now seen corresponding path program 1 times [2024-11-20 22:02:17,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:02:17,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970288521] [2024-11-20 22:02:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:17,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:02:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:17,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:02:17,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970288521] [2024-11-20 22:02:17,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970288521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:02:17,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:02:17,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:02:17,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149671522] [2024-11-20 22:02:17,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:02:17,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:02:17,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:02:17,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:02:17,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:02:17,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 122 [2024-11-20 22:02:17,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 147 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 22:02:17,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:02:17,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 122 [2024-11-20 22:02:17,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:02:25,720 INFO L124 PetriNetUnfolderBase]: 97694/129568 cut-off events. [2024-11-20 22:02:25,721 INFO L125 PetriNetUnfolderBase]: For 9896/10064 co-relation queries the response was YES. [2024-11-20 22:02:26,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269418 conditions, 129568 events. 97694/129568 cut-off events. For 9896/10064 co-relation queries the response was YES. Maximal size of possible extension queue 3481. Compared 821643 event pairs, 31944 based on Foata normal form. 0/98062 useless extension candidates. Maximal degree in co-relation 269294. Up to 66408 conditions per place. [2024-11-20 22:02:26,652 INFO L140 encePairwiseOnDemand]: 117/122 looper letters, 155 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2024-11-20 22:02:26,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 184 transitions, 1032 flow [2024-11-20 22:02:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:02:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:02:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2024-11-20 22:02:26,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5683060109289617 [2024-11-20 22:02:26,654 INFO L175 Difference]: Start difference. First operand has 101 places, 147 transitions, 628 flow. Second operand 3 states and 208 transitions. [2024-11-20 22:02:26,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 184 transitions, 1032 flow [2024-11-20 22:02:26,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 184 transitions, 1028 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:02:26,660 INFO L231 Difference]: Finished difference. Result has 104 places, 148 transitions, 646 flow [2024-11-20 22:02:26,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=104, PETRI_TRANSITIONS=148} [2024-11-20 22:02:26,661 INFO L277 CegarLoopForPetriNet]: 105 programPoint places, -1 predicate places. [2024-11-20 22:02:26,661 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 148 transitions, 646 flow [2024-11-20 22:02:26,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-20 22:02:26,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:02:26,662 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:02:26,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 22:02:26,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-20 22:02:26,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:02:26,662 INFO L85 PathProgramCache]: Analyzing trace with hash -440361410, now seen corresponding path program 1 times [2024-11-20 22:02:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:02:26,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571978832] [2024-11-20 22:02:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:02:26,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:02:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:02:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:02:26,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:02:26,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571978832] [2024-11-20 22:02:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571978832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:02:26,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:02:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:02:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254227037] [2024-11-20 22:02:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:02:26,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:02:26,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:02:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:02:26,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:02:26,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 122 [2024-11-20 22:02:26,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 148 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:02:26,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:02:26,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 122 [2024-11-20 22:02:26,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand