./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-more-dec-subseq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:07:10,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:07:10,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:07:10,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:07:10,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:07:10,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:07:10,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:07:10,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:07:10,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:07:10,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:07:10,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:07:10,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:07:10,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:07:10,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:07:10,366 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:07:10,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:07:10,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:07:10,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:07:10,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:07:10,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:07:10,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:07:10,369 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:07:10,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:07:10,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:07:10,370 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:07:10,370 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:07:10,370 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:07:10,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:07:10,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:07:10,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:07:10,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:07:10,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:07:10,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:07:10,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:07:10,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:07:10,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:07:10,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:07:10,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:07:10,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:07:10,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:07:10,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:07:10,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:07:10,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:07:10,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:07:10,377 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f0e249de6560bdff430500b6d1ad159bf4a19253ccf183d061fafc41fe4114b [2024-10-12 00:07:10,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:07:10,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:07:10,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:07:10,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:07:10,768 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:07:10,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-10-12 00:07:12,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:07:12,494 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:07:12,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-dec-subseq.wvr.c [2024-10-12 00:07:12,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3f64d2bdf/cf37bfb91cd24dae847feb3944c734a5/FLAGe7ec6430c [2024-10-12 00:07:12,877 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/3f64d2bdf/cf37bfb91cd24dae847feb3944c734a5 [2024-10-12 00:07:12,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:07:12,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:07:12,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:07:12,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:07:12,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:07:12,898 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:07:12" (1/1) ... [2024-10-12 00:07:12,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e732bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:12, skipping insertion in model container [2024-10-12 00:07:12,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:07:12" (1/1) ... [2024-10-12 00:07:12,924 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:07:13,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:07:13,218 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:07:13,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:07:13,283 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:07:13,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13 WrapperNode [2024-10-12 00:07:13,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:07:13,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:07:13,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:07:13,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:07:13,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,346 INFO L138 Inliner]: procedures = 23, calls = 36, calls flagged for inlining = 12, calls inlined = 14, statements flattened = 199 [2024-10-12 00:07:13,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:07:13,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:07:13,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:07:13,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:07:13,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,385 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-12 00:07:13,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:07:13,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:07:13,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:07:13,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:07:13,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (1/1) ... [2024-10-12 00:07:13,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:07:13,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:13,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:07:13,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:07:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:07:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:07:13,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:07:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:07:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:07:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:07:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 00:07:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:07:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 00:07:13,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-12 00:07:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-12 00:07:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 00:07:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:07:13,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:07:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:07:13,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 00:07:13,591 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:07:13,741 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:07:13,743 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:07:14,145 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:07:14,146 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:07:14,478 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:07:14,478 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-12 00:07:14,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:07:14 BoogieIcfgContainer [2024-10-12 00:07:14,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:07:14,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:07:14,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:07:14,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:07:14,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:07:12" (1/3) ... [2024-10-12 00:07:14,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae48225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:07:14, skipping insertion in model container [2024-10-12 00:07:14,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:07:13" (2/3) ... [2024-10-12 00:07:14,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae48225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:07:14, skipping insertion in model container [2024-10-12 00:07:14,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:07:14" (3/3) ... [2024-10-12 00:07:14,489 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-dec-subseq.wvr.c [2024-10-12 00:07:14,509 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:07:14,509 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-12 00:07:14,509 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:07:14,572 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-12 00:07:14,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 100 flow [2024-10-12 00:07:14,658 INFO L124 PetriNetUnfolderBase]: 5/41 cut-off events. [2024-10-12 00:07:14,658 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:07:14,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 5/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 104 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-10-12 00:07:14,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 43 transitions, 100 flow [2024-10-12 00:07:14,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 39 transitions, 87 flow [2024-10-12 00:07:14,681 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:07:14,687 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;@7e109c12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:07:14,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-12 00:07:14,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:07:14,692 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-12 00:07:14,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:07:14,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:14,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-12 00:07:14,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:14,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:14,701 INFO L85 PathProgramCache]: Analyzing trace with hash 598072, now seen corresponding path program 1 times [2024-10-12 00:07:14,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:14,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379049387] [2024-10-12 00:07:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:14,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:15,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379049387] [2024-10-12 00:07:15,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379049387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:15,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:15,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:07:15,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816346184] [2024-10-12 00:07:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:15,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:07:15,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:15,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:07:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:07:15,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:15,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:15,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:15,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:15,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:15,460 INFO L124 PetriNetUnfolderBase]: 238/425 cut-off events. [2024-10-12 00:07:15,460 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-12 00:07:15,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 425 events. 238/425 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1833 event pairs, 142 based on Foata normal form. 2/292 useless extension candidates. Maximal degree in co-relation 751. Up to 368 conditions per place. [2024-10-12 00:07:15,468 INFO L140 encePairwiseOnDemand]: 30/43 looper letters, 29 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-10-12 00:07:15,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 167 flow [2024-10-12 00:07:15,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:07:15,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:07:15,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-10-12 00:07:15,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45348837209302323 [2024-10-12 00:07:15,486 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 87 flow. Second operand 4 states and 78 transitions. [2024-10-12 00:07:15,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 167 flow [2024-10-12 00:07:15,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:07:15,496 INFO L231 Difference]: Finished difference. Result has 42 places, 43 transitions, 138 flow [2024-10-12 00:07:15,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=138, PETRI_PLACES=42, PETRI_TRANSITIONS=43} [2024-10-12 00:07:15,503 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-10-12 00:07:15,504 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 43 transitions, 138 flow [2024-10-12 00:07:15,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:15,505 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:15,505 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-12 00:07:15,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:07:15,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:15,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash 637876464, now seen corresponding path program 1 times [2024-10-12 00:07:15,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:15,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873407541] [2024-10-12 00:07:15,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:15,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:15,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:15,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873407541] [2024-10-12 00:07:15,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873407541] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719505598] [2024-10-12 00:07:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:15,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:15,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:15,730 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:15,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 00:07:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:15,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:07:15,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:15,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:15,890 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:07:15,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719505598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:15,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:07:15,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-12 00:07:15,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088542087] [2024-10-12 00:07:15,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:15,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:07:15,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:15,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:07:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:07:15,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:15,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 43 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:15,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:15,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:15,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:16,118 INFO L124 PetriNetUnfolderBase]: 238/423 cut-off events. [2024-10-12 00:07:16,119 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-12 00:07:16,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 423 events. 238/423 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1827 event pairs, 142 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 791. Up to 358 conditions per place. [2024-10-12 00:07:16,126 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 22 selfloop transitions, 12 changer transitions 0/41 dead transitions. [2024-10-12 00:07:16,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 198 flow [2024-10-12 00:07:16,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:07:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:07:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-10-12 00:07:16,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3488372093023256 [2024-10-12 00:07:16,131 INFO L175 Difference]: Start difference. First operand has 42 places, 43 transitions, 138 flow. Second operand 6 states and 90 transitions. [2024-10-12 00:07:16,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 198 flow [2024-10-12 00:07:16,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:07:16,133 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 154 flow [2024-10-12 00:07:16,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-10-12 00:07:16,134 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2024-10-12 00:07:16,135 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 154 flow [2024-10-12 00:07:16,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:16,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:16,135 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-12 00:07:16,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 00:07:16,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:16,340 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:16,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1700665509, now seen corresponding path program 1 times [2024-10-12 00:07:16,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616938099] [2024-10-12 00:07:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:16,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:16,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:16,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:16,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616938099] [2024-10-12 00:07:16,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616938099] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:16,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001034994] [2024-10-12 00:07:16,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:16,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:16,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:16,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 00:07:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:16,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:07:16,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:16,591 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001034994] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:16,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:16,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-12 00:07:16,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247004521] [2024-10-12 00:07:16,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:16,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 00:07:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 00:07:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-12 00:07:16,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:16,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 154 flow. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:16,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:16,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:16,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:16,915 INFO L124 PetriNetUnfolderBase]: 244/447 cut-off events. [2024-10-12 00:07:16,915 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-10-12 00:07:16,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 447 events. 244/447 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2016 event pairs, 142 based on Foata normal form. 6/320 useless extension candidates. Maximal degree in co-relation 793. Up to 369 conditions per place. [2024-10-12 00:07:16,922 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 27 selfloop transitions, 25 changer transitions 0/59 dead transitions. [2024-10-12 00:07:16,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 372 flow [2024-10-12 00:07:16,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:07:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:07:16,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2024-10-12 00:07:16,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34418604651162793 [2024-10-12 00:07:16,927 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 154 flow. Second operand 10 states and 148 transitions. [2024-10-12 00:07:16,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 372 flow [2024-10-12 00:07:16,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 59 transitions, 314 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-12 00:07:16,932 INFO L231 Difference]: Finished difference. Result has 52 places, 59 transitions, 294 flow [2024-10-12 00:07:16,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=52, PETRI_TRANSITIONS=59} [2024-10-12 00:07:16,934 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 11 predicate places. [2024-10-12 00:07:16,935 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 59 transitions, 294 flow [2024-10-12 00:07:16,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 12 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:16,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:16,936 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:16,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 00:07:17,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:17,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:17,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:17,138 INFO L85 PathProgramCache]: Analyzing trace with hash -483914454, now seen corresponding path program 1 times [2024-10-12 00:07:17,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:17,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016160151] [2024-10-12 00:07:17,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:17,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:17,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:17,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016160151] [2024-10-12 00:07:17,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016160151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:17,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:17,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:07:17,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210640119] [2024-10-12 00:07:17,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:17,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:07:17,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:17,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:07:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:07:17,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:17,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 59 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:17,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:17,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:17,477 INFO L124 PetriNetUnfolderBase]: 302/581 cut-off events. [2024-10-12 00:07:17,477 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-12 00:07:17,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 581 events. 302/581 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2835 event pairs, 185 based on Foata normal form. 12/427 useless extension candidates. Maximal degree in co-relation 1156. Up to 384 conditions per place. [2024-10-12 00:07:17,482 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 72 selfloop transitions, 3 changer transitions 3/87 dead transitions. [2024-10-12 00:07:17,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 583 flow [2024-10-12 00:07:17,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:07:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:07:17,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-12 00:07:17,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2024-10-12 00:07:17,484 INFO L175 Difference]: Start difference. First operand has 52 places, 59 transitions, 294 flow. Second operand 4 states and 101 transitions. [2024-10-12 00:07:17,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 583 flow [2024-10-12 00:07:17,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 87 transitions, 549 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-12 00:07:17,491 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 285 flow [2024-10-12 00:07:17,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2024-10-12 00:07:17,493 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2024-10-12 00:07:17,493 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 285 flow [2024-10-12 00:07:17,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:17,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:17,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:07:17,495 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:17,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -483914420, now seen corresponding path program 1 times [2024-10-12 00:07:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:17,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729767204] [2024-10-12 00:07:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:17,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:17,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729767204] [2024-10-12 00:07:17,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729767204] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:17,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:17,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:07:17,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578218279] [2024-10-12 00:07:17,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:17,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:07:17,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:07:17,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:07:17,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:17,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:17,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:17,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:17,711 INFO L124 PetriNetUnfolderBase]: 476/852 cut-off events. [2024-10-12 00:07:17,712 INFO L125 PetriNetUnfolderBase]: For 134/154 co-relation queries the response was YES. [2024-10-12 00:07:17,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 852 events. 476/852 cut-off events. For 134/154 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4426 event pairs, 145 based on Foata normal form. 0/607 useless extension candidates. Maximal degree in co-relation 1894. Up to 402 conditions per place. [2024-10-12 00:07:17,718 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 64 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-10-12 00:07:17,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 464 flow [2024-10-12 00:07:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:07:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:07:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-10-12 00:07:17,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-10-12 00:07:17,720 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 285 flow. Second operand 3 states and 83 transitions. [2024-10-12 00:07:17,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 464 flow [2024-10-12 00:07:17,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 460 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-12 00:07:17,726 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 303 flow [2024-10-12 00:07:17,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2024-10-12 00:07:17,726 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2024-10-12 00:07:17,727 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 303 flow [2024-10-12 00:07:17,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:17,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:17,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:07:17,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:17,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:17,730 INFO L85 PathProgramCache]: Analyzing trace with hash -483914421, now seen corresponding path program 1 times [2024-10-12 00:07:17,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:17,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398380578] [2024-10-12 00:07:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:17,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:17,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:17,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398380578] [2024-10-12 00:07:17,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398380578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:17,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:07:17,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:07:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421238296] [2024-10-12 00:07:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:17,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:07:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:17,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:07:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:07:17,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:17,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:17,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:17,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:17,908 INFO L124 PetriNetUnfolderBase]: 431/819 cut-off events. [2024-10-12 00:07:17,909 INFO L125 PetriNetUnfolderBase]: For 186/208 co-relation queries the response was YES. [2024-10-12 00:07:17,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 819 events. 431/819 cut-off events. For 186/208 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 4442 event pairs, 285 based on Foata normal form. 36/652 useless extension candidates. Maximal degree in co-relation 1858. Up to 720 conditions per place. [2024-10-12 00:07:17,914 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 49 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2024-10-12 00:07:17,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 393 flow [2024-10-12 00:07:17,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:07:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:07:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-10-12 00:07:17,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5038759689922481 [2024-10-12 00:07:17,916 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 303 flow. Second operand 3 states and 65 transitions. [2024-10-12 00:07:17,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 393 flow [2024-10-12 00:07:17,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 381 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:07:17,919 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 283 flow [2024-10-12 00:07:17,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-10-12 00:07:17,922 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-10-12 00:07:17,923 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 283 flow [2024-10-12 00:07:17,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:17,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:17,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:17,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 00:07:17,924 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:17,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1224124274, now seen corresponding path program 1 times [2024-10-12 00:07:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:17,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806595091] [2024-10-12 00:07:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:17,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:18,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:18,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806595091] [2024-10-12 00:07:18,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806595091] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:18,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366558304] [2024-10-12 00:07:18,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:18,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:18,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:18,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:18,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 00:07:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:18,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 00:07:18,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:07:18,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:07:18,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366558304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:18,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:07:18,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-10-12 00:07:18,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360123514] [2024-10-12 00:07:18,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:18,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:07:18,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:18,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:07:18,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 00:07:18,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:18,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:18,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:18,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:18,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:18,341 INFO L124 PetriNetUnfolderBase]: 429/817 cut-off events. [2024-10-12 00:07:18,341 INFO L125 PetriNetUnfolderBase]: For 134/156 co-relation queries the response was YES. [2024-10-12 00:07:18,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 817 events. 429/817 cut-off events. For 134/156 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4367 event pairs, 285 based on Foata normal form. 2/616 useless extension candidates. Maximal degree in co-relation 1908. Up to 712 conditions per place. [2024-10-12 00:07:18,349 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 43 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-10-12 00:07:18,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 58 transitions, 377 flow [2024-10-12 00:07:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:07:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:07:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-10-12 00:07:18,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-10-12 00:07:18,351 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 283 flow. Second operand 3 states and 67 transitions. [2024-10-12 00:07:18,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 58 transitions, 377 flow [2024-10-12 00:07:18,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 376 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:07:18,354 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 290 flow [2024-10-12 00:07:18,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2024-10-12 00:07:18,355 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2024-10-12 00:07:18,356 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 290 flow [2024-10-12 00:07:18,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:18,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:18,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:18,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 00:07:18,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:18,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:18,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash 85303529, now seen corresponding path program 1 times [2024-10-12 00:07:18,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:18,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734493595] [2024-10-12 00:07:18,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:18,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:07:18,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:18,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734493595] [2024-10-12 00:07:18,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734493595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:18,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697654936] [2024-10-12 00:07:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:18,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:18,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:18,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:18,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 00:07:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:18,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:07:18,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:18,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:07:18,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:07:18,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697654936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:07:18,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:07:18,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-10-12 00:07:18,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452777446] [2024-10-12 00:07:18,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:07:18,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:07:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:18,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:07:18,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 00:07:18,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:18,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:18,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:18,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:18,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:18,934 INFO L124 PetriNetUnfolderBase]: 317/645 cut-off events. [2024-10-12 00:07:18,935 INFO L125 PetriNetUnfolderBase]: For 134/144 co-relation queries the response was YES. [2024-10-12 00:07:18,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 645 events. 317/645 cut-off events. For 134/144 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3272 event pairs, 216 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1472. Up to 554 conditions per place. [2024-10-12 00:07:18,939 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 45 selfloop transitions, 1 changer transitions 1/56 dead transitions. [2024-10-12 00:07:18,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 56 transitions, 376 flow [2024-10-12 00:07:18,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:07:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:07:18,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-10-12 00:07:18,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49612403100775193 [2024-10-12 00:07:18,941 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 290 flow. Second operand 3 states and 64 transitions. [2024-10-12 00:07:18,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 56 transitions, 376 flow [2024-10-12 00:07:18,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:07:18,944 INFO L231 Difference]: Finished difference. Result has 55 places, 55 transitions, 275 flow [2024-10-12 00:07:18,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=55, PETRI_TRANSITIONS=55} [2024-10-12 00:07:18,945 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 14 predicate places. [2024-10-12 00:07:18,945 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 55 transitions, 275 flow [2024-10-12 00:07:18,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:18,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:18,945 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:18,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 00:07:19,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-12 00:07:19,147 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:19,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash -61526606, now seen corresponding path program 1 times [2024-10-12 00:07:19,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:19,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557297062] [2024-10-12 00:07:19,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:19,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 00:07:19,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557297062] [2024-10-12 00:07:19,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557297062] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:19,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469091056] [2024-10-12 00:07:19,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:19,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:19,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:19,223 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:19,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 00:07:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:19,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-12 00:07:19,307 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:19,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:19,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:19,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469091056] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:19,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:19,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 14 [2024-10-12 00:07:19,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514798375] [2024-10-12 00:07:19,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:19,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 00:07:19,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:19,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 00:07:19,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-12 00:07:19,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:19,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 275 flow. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:19,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:19,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:19,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:20,035 INFO L124 PetriNetUnfolderBase]: 598/1106 cut-off events. [2024-10-12 00:07:20,036 INFO L125 PetriNetUnfolderBase]: For 191/207 co-relation queries the response was YES. [2024-10-12 00:07:20,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2566 conditions, 1106 events. 598/1106 cut-off events. For 191/207 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5848 event pairs, 140 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 2549. Up to 242 conditions per place. [2024-10-12 00:07:20,043 INFO L140 encePairwiseOnDemand]: 32/43 looper letters, 42 selfloop transitions, 28 changer transitions 42/119 dead transitions. [2024-10-12 00:07:20,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 119 transitions, 666 flow [2024-10-12 00:07:20,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 00:07:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-12 00:07:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 222 transitions. [2024-10-12 00:07:20,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3687707641196013 [2024-10-12 00:07:20,046 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 275 flow. Second operand 14 states and 222 transitions. [2024-10-12 00:07:20,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 119 transitions, 666 flow [2024-10-12 00:07:20,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 119 transitions, 665 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:07:20,050 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 337 flow [2024-10-12 00:07:20,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=337, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-10-12 00:07:20,051 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2024-10-12 00:07:20,051 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 337 flow [2024-10-12 00:07:20,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:20,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:20,051 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-12 00:07:20,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 00:07:20,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:20,253 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:20,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1000513299, now seen corresponding path program 2 times [2024-10-12 00:07:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776853493] [2024-10-12 00:07:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:20,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:20,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776853493] [2024-10-12 00:07:20,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776853493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:20,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477594638] [2024-10-12 00:07:20,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:07:20,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:20,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:20,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:20,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 00:07:20,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:07:20,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:07:20,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:07:20,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:07:20,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 00:07:20,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477594638] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:20,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:20,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-10-12 00:07:20,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935219026] [2024-10-12 00:07:20,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:20,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 00:07:20,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:20,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 00:07:20,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-10-12 00:07:20,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:20,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 337 flow. Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:20,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:20,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:20,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:20,934 INFO L124 PetriNetUnfolderBase]: 398/788 cut-off events. [2024-10-12 00:07:20,934 INFO L125 PetriNetUnfolderBase]: For 389/398 co-relation queries the response was YES. [2024-10-12 00:07:20,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 788 events. 398/788 cut-off events. For 389/398 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3918 event pairs, 274 based on Foata normal form. 4/698 useless extension candidates. Maximal degree in co-relation 1997. Up to 653 conditions per place. [2024-10-12 00:07:20,940 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 21 selfloop transitions, 32 changer transitions 0/60 dead transitions. [2024-10-12 00:07:20,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 60 transitions, 482 flow [2024-10-12 00:07:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-12 00:07:20,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-12 00:07:20,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 270 transitions. [2024-10-12 00:07:20,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2616279069767442 [2024-10-12 00:07:20,942 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 337 flow. Second operand 24 states and 270 transitions. [2024-10-12 00:07:20,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 60 transitions, 482 flow [2024-10-12 00:07:20,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 60 transitions, 468 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-12 00:07:20,946 INFO L231 Difference]: Finished difference. Result has 84 places, 60 transitions, 439 flow [2024-10-12 00:07:20,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=439, PETRI_PLACES=84, PETRI_TRANSITIONS=60} [2024-10-12 00:07:20,948 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 43 predicate places. [2024-10-12 00:07:20,948 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 60 transitions, 439 flow [2024-10-12 00:07:20,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:20,949 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:20,949 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1] [2024-10-12 00:07:20,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 00:07:21,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-12 00:07:21,151 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:21,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash 163657515, now seen corresponding path program 1 times [2024-10-12 00:07:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:21,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185368041] [2024-10-12 00:07:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:21,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185368041] [2024-10-12 00:07:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185368041] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212905063] [2024-10-12 00:07:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:21,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:21,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:21,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 00:07:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:21,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-12 00:07:21,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:21,470 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:21,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212905063] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:21,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:21,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-10-12 00:07:21,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602668488] [2024-10-12 00:07:21,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:21,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-12 00:07:21,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:21,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-12 00:07:21,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-10-12 00:07:21,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:21,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 60 transitions, 439 flow. Second operand has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:21,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:21,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:21,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:22,166 INFO L124 PetriNetUnfolderBase]: 419/876 cut-off events. [2024-10-12 00:07:22,167 INFO L125 PetriNetUnfolderBase]: For 892/901 co-relation queries the response was YES. [2024-10-12 00:07:22,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2395 conditions, 876 events. 419/876 cut-off events. For 892/901 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4359 event pairs, 274 based on Foata normal form. 14/793 useless extension candidates. Maximal degree in co-relation 2374. Up to 670 conditions per place. [2024-10-12 00:07:22,172 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 24 selfloop transitions, 71 changer transitions 0/102 dead transitions. [2024-10-12 00:07:22,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 1049 flow [2024-10-12 00:07:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-12 00:07:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-12 00:07:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 334 transitions. [2024-10-12 00:07:22,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29874776386404295 [2024-10-12 00:07:22,175 INFO L175 Difference]: Start difference. First operand has 84 places, 60 transitions, 439 flow. Second operand 26 states and 334 transitions. [2024-10-12 00:07:22,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 1049 flow [2024-10-12 00:07:22,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 102 transitions, 873 flow, removed 31 selfloop flow, removed 14 redundant places. [2024-10-12 00:07:22,181 INFO L231 Difference]: Finished difference. Result has 102 places, 102 transitions, 877 flow [2024-10-12 00:07:22,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=877, PETRI_PLACES=102, PETRI_TRANSITIONS=102} [2024-10-12 00:07:22,182 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 61 predicate places. [2024-10-12 00:07:22,182 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 102 transitions, 877 flow [2024-10-12 00:07:22,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 28 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:22,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:22,184 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:22,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 00:07:22,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:22,386 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:22,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:22,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1547408588, now seen corresponding path program 2 times [2024-10-12 00:07:22,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:22,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144967215] [2024-10-12 00:07:22,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:22,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-12 00:07:22,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144967215] [2024-10-12 00:07:22,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144967215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:22,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646661204] [2024-10-12 00:07:22,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:07:22,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:22,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:22,469 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:22,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 00:07:22,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:07:22,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:07:22,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:07:22,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:22,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 00:07:22,587 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:22,625 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 00:07:22,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646661204] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:22,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:22,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 5 [2024-10-12 00:07:22,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59802494] [2024-10-12 00:07:22,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:22,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 00:07:22,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 00:07:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 00:07:22,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-10-12 00:07:22,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 877 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:22,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:22,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-10-12 00:07:22,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:22,864 INFO L124 PetriNetUnfolderBase]: 533/1020 cut-off events. [2024-10-12 00:07:22,865 INFO L125 PetriNetUnfolderBase]: For 845/853 co-relation queries the response was YES. [2024-10-12 00:07:22,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 1020 events. 533/1020 cut-off events. For 845/853 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4998 event pairs, 88 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 2793. Up to 320 conditions per place. [2024-10-12 00:07:22,871 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 65 selfloop transitions, 1 changer transitions 73/142 dead transitions. [2024-10-12 00:07:22,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 1247 flow [2024-10-12 00:07:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 00:07:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-12 00:07:22,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 157 transitions. [2024-10-12 00:07:22,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.521594684385382 [2024-10-12 00:07:22,873 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 877 flow. Second operand 7 states and 157 transitions. [2024-10-12 00:07:22,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 1247 flow [2024-10-12 00:07:22,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 142 transitions, 1064 flow, removed 54 selfloop flow, removed 12 redundant places. [2024-10-12 00:07:22,884 INFO L231 Difference]: Finished difference. Result has 95 places, 69 transitions, 573 flow [2024-10-12 00:07:22,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=573, PETRI_PLACES=95, PETRI_TRANSITIONS=69} [2024-10-12 00:07:22,885 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 54 predicate places. [2024-10-12 00:07:22,885 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 69 transitions, 573 flow [2024-10-12 00:07:22,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:22,885 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:07:22,886 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 12, 1, 1, 1] [2024-10-12 00:07:22,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:07:23,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-12 00:07:23,086 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:07:23,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:07:23,087 INFO L85 PathProgramCache]: Analyzing trace with hash 827250642, now seen corresponding path program 2 times [2024-10-12 00:07:23,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:07:23,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933476894] [2024-10-12 00:07:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:07:23,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:07:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:07:23,692 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:07:23,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:07:23,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933476894] [2024-10-12 00:07:23,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933476894] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:07:23,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768855087] [2024-10-12 00:07:23,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:07:23,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:23,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:07:23,695 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:07:23,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-12 00:07:23,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 00:07:23,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:07:23,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 00:07:23,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:07:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-12 00:07:23,881 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:07:23,964 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-12 00:07:23,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768855087] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:07:23,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:07:23,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 3, 3] total 30 [2024-10-12 00:07:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361232689] [2024-10-12 00:07:23,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:07:23,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-12 00:07:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:07:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-12 00:07:23,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-10-12 00:07:24,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2024-10-12 00:07:24,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 69 transitions, 573 flow. Second operand has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:24,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:07:24,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2024-10-12 00:07:24,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:07:24,726 INFO L124 PetriNetUnfolderBase]: 15/141 cut-off events. [2024-10-12 00:07:24,726 INFO L125 PetriNetUnfolderBase]: For 617/617 co-relation queries the response was YES. [2024-10-12 00:07:24,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 141 events. 15/141 cut-off events. For 617/617 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 250 event pairs, 0 based on Foata normal form. 4/142 useless extension candidates. Maximal degree in co-relation 550. Up to 42 conditions per place. [2024-10-12 00:07:24,727 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-10-12 00:07:24,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 73 transitions, 733 flow [2024-10-12 00:07:24,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-12 00:07:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-12 00:07:24,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 343 transitions. [2024-10-12 00:07:24,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.26589147286821707 [2024-10-12 00:07:24,732 INFO L175 Difference]: Start difference. First operand has 95 places, 69 transitions, 573 flow. Second operand 30 states and 343 transitions. [2024-10-12 00:07:24,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 73 transitions, 733 flow [2024-10-12 00:07:24,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 676 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-10-12 00:07:24,736 INFO L231 Difference]: Finished difference. Result has 81 places, 0 transitions, 0 flow [2024-10-12 00:07:24,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=0, PETRI_PLACES=81, PETRI_TRANSITIONS=0} [2024-10-12 00:07:24,737 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, 40 predicate places. [2024-10-12 00:07:24,737 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 0 transitions, 0 flow [2024-10-12 00:07:24,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:07:24,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-12 00:07:24,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-12 00:07:24,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-12 00:07:24,741 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-10-12 00:07:24,742 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-12 00:07:24,743 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-12 00:07:24,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-12 00:07:24,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-12 00:07:24,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-12 00:07:24,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:07:24,945 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:07:24,951 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-12 00:07:24,951 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 00:07:24,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 12:07:24 BasicIcfg [2024-10-12 00:07:24,957 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 00:07:24,957 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:07:24,958 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:07:24,958 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:07:24,958 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:07:14" (3/4) ... [2024-10-12 00:07:24,960 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 00:07:24,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-12 00:07:24,962 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-12 00:07:24,970 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2024-10-12 00:07:24,971 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-10-12 00:07:24,971 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-12 00:07:24,972 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-12 00:07:25,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:07:25,077 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 00:07:25,077 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:07:25,078 INFO L158 Benchmark]: Toolchain (without parser) took 12192.75ms. Allocated memory was 174.1MB in the beginning and 249.6MB in the end (delta: 75.5MB). Free memory was 98.6MB in the beginning and 182.9MB in the end (delta: -84.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:07:25,078 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 174.1MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:07:25,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.69ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 85.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:07:25,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.22ms. Allocated memory is still 174.1MB. Free memory was 85.0MB in the beginning and 82.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:07:25,079 INFO L158 Benchmark]: Boogie Preprocessor took 53.08ms. Allocated memory is still 174.1MB. Free memory was 82.8MB in the beginning and 80.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:07:25,079 INFO L158 Benchmark]: RCFGBuilder took 1075.96ms. Allocated memory is still 174.1MB. Free memory was 80.2MB in the beginning and 85.2MB in the end (delta: -5.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-10-12 00:07:25,079 INFO L158 Benchmark]: TraceAbstraction took 10473.93ms. Allocated memory was 174.1MB in the beginning and 249.6MB in the end (delta: 75.5MB). Free memory was 84.4MB in the beginning and 188.2MB in the end (delta: -103.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:07:25,080 INFO L158 Benchmark]: Witness Printer took 119.95ms. Allocated memory is still 249.6MB. Free memory was 188.2MB in the beginning and 182.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:07:25,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 174.1MB. Free memory is still 143.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.69ms. Allocated memory is still 174.1MB. Free memory was 98.6MB in the beginning and 85.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.22ms. Allocated memory is still 174.1MB. Free memory was 85.0MB in the beginning and 82.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.08ms. Allocated memory is still 174.1MB. Free memory was 82.8MB in the beginning and 80.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1075.96ms. Allocated memory is still 174.1MB. Free memory was 80.2MB in the beginning and 85.2MB in the end (delta: -5.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10473.93ms. Allocated memory was 174.1MB in the beginning and 249.6MB in the end (delta: 75.5MB). Free memory was 84.4MB in the beginning and 188.2MB in the end (delta: -103.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 119.95ms. Allocated memory is still 249.6MB. Free memory was 188.2MB in the beginning and 182.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 117]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 61 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.3s, OverallIterations: 13, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 978 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 916 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 434 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1749 IncrementalHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 18 mSDtfsCounter, 1749 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 207 SyntacticMatches, 6 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1367 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=877occurred in iteration=11, InterpolantAutomatonStates: 137, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 325 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1343 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1086 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 28 InterpolantComputations, 7 PerfectInterpolantSequences, 502/1000 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-12 00:07:25,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE