./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:56:26,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:56:26,495 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:56:26,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:56:26,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:56:26,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:56:26,529 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:56:26,530 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:56:26,530 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:56:26,532 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:56:26,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:56:26,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:56:26,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:56:26,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:56:26,535 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:56:26,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:56:26,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:56:26,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:56:26,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:56:26,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:56:26,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:56:26,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:56:26,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:56:26,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:56:26,541 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:56:26,541 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:56:26,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:56:26,541 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:56:26,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:56:26,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:56:26,542 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:56:26,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:56:26,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:56:26,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:56:26,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:56:26,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:56:26,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:56:26,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:56:26,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:56:26,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:56:26,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:56:26,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:56:26,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:56:26,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:56:26,547 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-17 07:56:26,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:56:26,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:56:26,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:56:26,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:56:26,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:56:26,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-17 07:56:28,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:56:28,542 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:56:28,542 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-17 07:56:28,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5136c3f31/75b950e13b2e4847bf49b0c874df2aea/FLAG242ec06c3 [2024-11-17 07:56:28,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5136c3f31/75b950e13b2e4847bf49b0c874df2aea [2024-11-17 07:56:28,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:56:28,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:56:28,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:56:28,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:56:28,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:56:28,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73265149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28, skipping insertion in model container [2024-11-17 07:56:28,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:56:28,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:56:28,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:56:28,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:56:28,876 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:56:28,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28 WrapperNode [2024-11-17 07:56:28,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:56:28,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:56:28,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:56:28,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:56:28,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,912 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-17 07:56:28,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:56:28,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:56:28,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:56:28,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:56:28,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,941 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-17 07:56:28,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,947 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:56:28,954 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:56:28,954 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:56:28,954 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:56:28,955 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (1/1) ... [2024-11-17 07:56:28,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:56:28,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:28,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:56:28,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:56:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:56:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:56:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:56:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:56:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:56:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:56:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:56:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:56:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:56:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:56:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:56:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:56:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:56:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:56:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:56:29,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:56:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:56:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:56:29,050 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:56:29,162 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:56:29,164 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:56:29,458 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:56:29,458 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:56:29,634 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:56:29,634 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:56:29,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:29 BoogieIcfgContainer [2024-11-17 07:56:29,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:56:29,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:56:29,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:56:29,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:56:29,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:56:28" (1/3) ... [2024-11-17 07:56:29,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa5b2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:29, skipping insertion in model container [2024-11-17 07:56:29,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:28" (2/3) ... [2024-11-17 07:56:29,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa5b2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:29, skipping insertion in model container [2024-11-17 07:56:29,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:29" (3/3) ... [2024-11-17 07:56:29,645 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-17 07:56:29,663 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:56:29,663 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-17 07:56:29,663 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:56:29,733 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:56:29,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 50 transitions, 121 flow [2024-11-17 07:56:29,793 INFO L124 PetriNetUnfolderBase]: 6/47 cut-off events. [2024-11-17 07:56:29,793 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:56:29,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 6/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-17 07:56:29,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 50 transitions, 121 flow [2024-11-17 07:56:29,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-17 07:56:29,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:56:29,814 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;@6b13534f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:56:29,815 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-17 07:56:29,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:56:29,820 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:56:29,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:56:29,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:29,821 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:56:29,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:29,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:29,827 INFO L85 PathProgramCache]: Analyzing trace with hash 11072050, now seen corresponding path program 1 times [2024-11-17 07:56:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:29,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784209851] [2024-11-17 07:56:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:30,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:30,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784209851] [2024-11-17 07:56:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784209851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:30,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:56:30,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174683324] [2024-11-17 07:56:30,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:30,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:30,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:30,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:30,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-17 07:56:30,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:30,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:30,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-17 07:56:30,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:30,403 INFO L124 PetriNetUnfolderBase]: 303/543 cut-off events. [2024-11-17 07:56:30,404 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-17 07:56:30,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 543 events. 303/543 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2726 event pairs, 232 based on Foata normal form. 72/550 useless extension candidates. Maximal degree in co-relation 951. Up to 457 conditions per place. [2024-11-17 07:56:30,412 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 22 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-17 07:56:30,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 152 flow [2024-11-17 07:56:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:30,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-17 07:56:30,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58 [2024-11-17 07:56:30,430 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 4 states and 116 transitions. [2024-11-17 07:56:30,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 152 flow [2024-11-17 07:56:30,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:56:30,440 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 117 flow [2024-11-17 07:56:30,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-11-17 07:56:30,445 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-17 07:56:30,445 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 117 flow [2024-11-17 07:56:30,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:30,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:30,446 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:56:30,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:56:30,446 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:30,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:30,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1037903911, now seen corresponding path program 1 times [2024-11-17 07:56:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:30,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679268853] [2024-11-17 07:56:30,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:30,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:30,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:30,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:30,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679268853] [2024-11-17 07:56:30,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679268853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308903860] [2024-11-17 07:56:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:30,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:30,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:30,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:30,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:56:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:30,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:30,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:30,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:56:30,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308903860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:30,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:56:30,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:56:30,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442285167] [2024-11-17 07:56:30,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:30,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:56:30,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:30,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:56:30,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:56:30,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-17 07:56:30,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:30,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:30,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-17 07:56:30,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:30,987 INFO L124 PetriNetUnfolderBase]: 303/542 cut-off events. [2024-11-17 07:56:30,988 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-17 07:56:30,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 542 events. 303/542 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2730 event pairs, 232 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 1027. Up to 452 conditions per place. [2024-11-17 07:56:30,995 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 18 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-17 07:56:30,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 163 flow [2024-11-17 07:56:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:56:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:56:30,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-11-17 07:56:30,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2024-11-17 07:56:30,999 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 117 flow. Second operand 6 states and 152 transitions. [2024-11-17 07:56:30,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 163 flow [2024-11-17 07:56:30,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:56:31,002 INFO L231 Difference]: Finished difference. Result has 52 places, 43 transitions, 124 flow [2024-11-17 07:56:31,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=43} [2024-11-17 07:56:31,003 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2024-11-17 07:56:31,003 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 43 transitions, 124 flow [2024-11-17 07:56:31,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:31,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:31,004 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:56:31,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:56:31,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:31,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:31,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:31,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2110249894, now seen corresponding path program 1 times [2024-11-17 07:56:31,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:31,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276061508] [2024-11-17 07:56:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:31,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:31,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276061508] [2024-11-17 07:56:31,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276061508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201894211] [2024-11-17 07:56:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:31,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:31,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:56:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:31,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:31,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:31,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:31,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201894211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:31,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:31,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:56:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937878984] [2024-11-17 07:56:31,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:31,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:56:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:56:31,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:56:31,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-17 07:56:31,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 124 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:31,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:31,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-17 07:56:31,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:31,729 INFO L124 PetriNetUnfolderBase]: 306/560 cut-off events. [2024-11-17 07:56:31,730 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-17 07:56:31,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 560 events. 306/560 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2871 event pairs, 232 based on Foata normal form. 3/499 useless extension candidates. Maximal degree in co-relation 1028. Up to 459 conditions per place. [2024-11-17 07:56:31,734 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 21 selfloop transitions, 13 changer transitions 0/52 dead transitions. [2024-11-17 07:56:31,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 246 flow [2024-11-17 07:56:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:56:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:56:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-11-17 07:56:31,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.494 [2024-11-17 07:56:31,737 INFO L175 Difference]: Start difference. First operand has 52 places, 43 transitions, 124 flow. Second operand 10 states and 247 transitions. [2024-11-17 07:56:31,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 246 flow [2024-11-17 07:56:31,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 52 transitions, 216 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-17 07:56:31,743 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2024-11-17 07:56:31,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-11-17 07:56:31,745 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2024-11-17 07:56:31,745 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2024-11-17 07:56:31,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:31,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:31,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:31,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:56:31,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-17 07:56:31,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:31,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2077573772, now seen corresponding path program 1 times [2024-11-17 07:56:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500888839] [2024-11-17 07:56:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:32,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500888839] [2024-11-17 07:56:32,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500888839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:32,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:32,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:32,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196618258] [2024-11-17 07:56:32,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:32,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:32,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:32,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:32,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:32,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-17 07:56:32,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:32,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-17 07:56:32,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:32,238 INFO L124 PetriNetUnfolderBase]: 760/1360 cut-off events. [2024-11-17 07:56:32,238 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-11-17 07:56:32,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 1360 events. 760/1360 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7468 event pairs, 288 based on Foata normal form. 34/1247 useless extension candidates. Maximal degree in co-relation 2592. Up to 812 conditions per place. [2024-11-17 07:56:32,248 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 58 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2024-11-17 07:56:32,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 376 flow [2024-11-17 07:56:32,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:32,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-17 07:56:32,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-17 07:56:32,252 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 4 states and 132 transitions. [2024-11-17 07:56:32,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 376 flow [2024-11-17 07:56:32,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 365 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-17 07:56:32,256 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 210 flow [2024-11-17 07:56:32,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-11-17 07:56:32,257 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-17 07:56:32,258 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 210 flow [2024-11-17 07:56:32,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:32,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:32,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:56:32,259 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:32,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash -523024831, now seen corresponding path program 1 times [2024-11-17 07:56:32,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:32,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34074347] [2024-11-17 07:56:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:32,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:32,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:32,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34074347] [2024-11-17 07:56:32,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34074347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:32,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:32,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:32,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74981754] [2024-11-17 07:56:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:32,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:32,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-17 07:56:32,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:32,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-17 07:56:32,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:32,633 INFO L124 PetriNetUnfolderBase]: 1221/2109 cut-off events. [2024-11-17 07:56:32,634 INFO L125 PetriNetUnfolderBase]: For 655/884 co-relation queries the response was YES. [2024-11-17 07:56:32,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4624 conditions, 2109 events. 1221/2109 cut-off events. For 655/884 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12423 event pairs, 653 based on Foata normal form. 128/2059 useless extension candidates. Maximal degree in co-relation 4584. Up to 1257 conditions per place. [2024-11-17 07:56:32,652 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 62 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-17 07:56:32,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 430 flow [2024-11-17 07:56:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:32,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-17 07:56:32,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-17 07:56:32,654 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 210 flow. Second operand 4 states and 130 transitions. [2024-11-17 07:56:32,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 430 flow [2024-11-17 07:56:32,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 83 transitions, 421 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:56:32,659 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 236 flow [2024-11-17 07:56:32,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-11-17 07:56:32,660 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2024-11-17 07:56:32,661 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 236 flow [2024-11-17 07:56:32,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:32,662 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:32,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:56:32,662 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:32,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:32,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1976802733, now seen corresponding path program 1 times [2024-11-17 07:56:32,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:32,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626621169] [2024-11-17 07:56:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:32,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:32,753 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:56:32,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:32,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626621169] [2024-11-17 07:56:32,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626621169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:32,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:32,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:32,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952081675] [2024-11-17 07:56:32,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:32,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:32,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:32,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:32,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:32,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-17 07:56:32,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:32,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-17 07:56:32,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:32,948 INFO L124 PetriNetUnfolderBase]: 760/1297 cut-off events. [2024-11-17 07:56:32,949 INFO L125 PetriNetUnfolderBase]: For 663/876 co-relation queries the response was YES. [2024-11-17 07:56:32,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 1297 events. 760/1297 cut-off events. For 663/876 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7095 event pairs, 554 based on Foata normal form. 75/1226 useless extension candidates. Maximal degree in co-relation 3156. Up to 1092 conditions per place. [2024-11-17 07:56:32,959 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 35 selfloop transitions, 2 changer transitions 1/58 dead transitions. [2024-11-17 07:56:32,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 58 transitions, 310 flow [2024-11-17 07:56:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-17 07:56:32,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.57 [2024-11-17 07:56:32,961 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 236 flow. Second operand 4 states and 114 transitions. [2024-11-17 07:56:32,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 58 transitions, 310 flow [2024-11-17 07:56:32,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:56:32,967 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 237 flow [2024-11-17 07:56:32,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-11-17 07:56:32,968 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-17 07:56:32,968 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 237 flow [2024-11-17 07:56:32,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:32,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:32,969 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:56:32,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:56:32,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:32,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1947203333, now seen corresponding path program 2 times [2024-11-17 07:56:32,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:32,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948916513] [2024-11-17 07:56:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:32,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:33,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948916513] [2024-11-17 07:56:33,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948916513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:33,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104003427] [2024-11-17 07:56:33,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:56:33,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:33,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:33,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:33,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:56:33,223 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:56:33,223 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:56:33,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:56:33,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:33,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:33,334 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:33,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104003427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:33,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:33,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:56:33,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716124040] [2024-11-17 07:56:33,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:33,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:56:33,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:33,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:56:33,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:56:33,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-17 07:56:33,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 237 flow. Second operand has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:33,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:33,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-17 07:56:33,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:33,668 INFO L124 PetriNetUnfolderBase]: 761/1301 cut-off events. [2024-11-17 07:56:33,668 INFO L125 PetriNetUnfolderBase]: For 598/811 co-relation queries the response was YES. [2024-11-17 07:56:33,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3109 conditions, 1301 events. 761/1301 cut-off events. For 598/811 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7139 event pairs, 554 based on Foata normal form. 76/1231 useless extension candidates. Maximal degree in co-relation 3080. Up to 1080 conditions per place. [2024-11-17 07:56:33,677 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 26 selfloop transitions, 18 changer transitions 0/63 dead transitions. [2024-11-17 07:56:33,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 350 flow [2024-11-17 07:56:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:56:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:56:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 322 transitions. [2024-11-17 07:56:33,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-11-17 07:56:33,679 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 237 flow. Second operand 14 states and 322 transitions. [2024-11-17 07:56:33,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 63 transitions, 350 flow [2024-11-17 07:56:33,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 63 transitions, 334 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-17 07:56:33,682 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 266 flow [2024-11-17 07:56:33,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2024-11-17 07:56:33,682 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-17 07:56:33,683 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 266 flow [2024-11-17 07:56:33,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:33,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:33,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:33,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:56:33,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:33,888 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:33,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1577344870, now seen corresponding path program 1 times [2024-11-17 07:56:33,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:33,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901435112] [2024-11-17 07:56:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:33,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:56:33,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:33,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901435112] [2024-11-17 07:56:33,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901435112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:33,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235553220] [2024-11-17 07:56:33,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:33,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:33,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:33,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:33,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:56:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:34,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 07:56:34,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:34,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:34,345 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:34,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235553220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:34,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:34,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-17 07:56:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192041770] [2024-11-17 07:56:34,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:34,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:56:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:56:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:56:34,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-17 07:56:34,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 266 flow. Second operand has 19 states, 19 states have (on average 17.105263157894736) internal successors, (325), 19 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:34,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:34,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-17 07:56:34,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:35,655 INFO L124 PetriNetUnfolderBase]: 2474/4134 cut-off events. [2024-11-17 07:56:35,655 INFO L125 PetriNetUnfolderBase]: For 1412/1803 co-relation queries the response was YES. [2024-11-17 07:56:35,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9731 conditions, 4134 events. 2474/4134 cut-off events. For 1412/1803 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 26220 event pairs, 399 based on Foata normal form. 188/4019 useless extension candidates. Maximal degree in co-relation 5621. Up to 536 conditions per place. [2024-11-17 07:56:35,683 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 149 selfloop transitions, 28 changer transitions 12/202 dead transitions. [2024-11-17 07:56:35,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 202 transitions, 1082 flow [2024-11-17 07:56:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:56:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:56:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 415 transitions. [2024-11-17 07:56:35,686 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48823529411764705 [2024-11-17 07:56:35,686 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 266 flow. Second operand 17 states and 415 transitions. [2024-11-17 07:56:35,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 202 transitions, 1082 flow [2024-11-17 07:56:35,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 202 transitions, 1014 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-17 07:56:35,695 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 289 flow [2024-11-17 07:56:35,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=289, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-17 07:56:35,698 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-17 07:56:35,698 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 289 flow [2024-11-17 07:56:35,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.105263157894736) internal successors, (325), 19 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:35,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:35,700 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:35,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:56:35,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:35,901 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:35,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:35,901 INFO L85 PathProgramCache]: Analyzing trace with hash 344175795, now seen corresponding path program 1 times [2024-11-17 07:56:35,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:35,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154286894] [2024-11-17 07:56:35,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:35,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:56:35,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:35,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154286894] [2024-11-17 07:56:35,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154286894] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:35,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544044551] [2024-11-17 07:56:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:35,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:35,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:35,969 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:35,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:56:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:36,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 07:56:36,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:36,182 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:36,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:36,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544044551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:36,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:36,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-17 07:56:36,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066008487] [2024-11-17 07:56:36,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:36,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:56:36,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:56:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:56:36,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-17 07:56:36,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 289 flow. Second operand has 19 states, 19 states have (on average 17.31578947368421) internal successors, (329), 19 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:36,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:36,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-17 07:56:36,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:37,511 INFO L124 PetriNetUnfolderBase]: 2629/4399 cut-off events. [2024-11-17 07:56:37,511 INFO L125 PetriNetUnfolderBase]: For 3522/3687 co-relation queries the response was YES. [2024-11-17 07:56:37,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11342 conditions, 4399 events. 2629/4399 cut-off events. For 3522/3687 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 28607 event pairs, 407 based on Foata normal form. 62/4186 useless extension candidates. Maximal degree in co-relation 7611. Up to 635 conditions per place. [2024-11-17 07:56:37,540 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 101 selfloop transitions, 21 changer transitions 64/199 dead transitions. [2024-11-17 07:56:37,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 199 transitions, 1170 flow [2024-11-17 07:56:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:56:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:56:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 406 transitions. [2024-11-17 07:56:37,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4776470588235294 [2024-11-17 07:56:37,543 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 289 flow. Second operand 17 states and 406 transitions. [2024-11-17 07:56:37,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 199 transitions, 1170 flow [2024-11-17 07:56:37,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 199 transitions, 1061 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-17 07:56:37,554 INFO L231 Difference]: Finished difference. Result has 90 places, 58 transitions, 259 flow [2024-11-17 07:56:37,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=259, PETRI_PLACES=90, PETRI_TRANSITIONS=58} [2024-11-17 07:56:37,555 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-17 07:56:37,555 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 58 transitions, 259 flow [2024-11-17 07:56:37,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.31578947368421) internal successors, (329), 19 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:37,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:37,556 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:37,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:56:37,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:37,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:37,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:37,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1420298102, now seen corresponding path program 1 times [2024-11-17 07:56:37,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:37,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629689838] [2024-11-17 07:56:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:37,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:37,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629689838] [2024-11-17 07:56:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629689838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:37,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155908418] [2024-11-17 07:56:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:37,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:37,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:37,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:37,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:56:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:37,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:37,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:37,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155908418] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:37,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:37,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:56:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201762765] [2024-11-17 07:56:37,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:37,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:56:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:56:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:56:38,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-17 07:56:38,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 58 transitions, 259 flow. Second operand has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:38,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:38,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-17 07:56:38,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:38,691 INFO L124 PetriNetUnfolderBase]: 2548/4855 cut-off events. [2024-11-17 07:56:38,691 INFO L125 PetriNetUnfolderBase]: For 3825/3946 co-relation queries the response was YES. [2024-11-17 07:56:38,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12339 conditions, 4855 events. 2548/4855 cut-off events. For 3825/3946 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 33365 event pairs, 798 based on Foata normal form. 174/4906 useless extension candidates. Maximal degree in co-relation 12239. Up to 1558 conditions per place. [2024-11-17 07:56:38,719 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 145 selfloop transitions, 13 changer transitions 0/175 dead transitions. [2024-11-17 07:56:38,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 175 transitions, 1025 flow [2024-11-17 07:56:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:56:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:56:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 330 transitions. [2024-11-17 07:56:38,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-17 07:56:38,721 INFO L175 Difference]: Start difference. First operand has 90 places, 58 transitions, 259 flow. Second operand 10 states and 330 transitions. [2024-11-17 07:56:38,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 175 transitions, 1025 flow [2024-11-17 07:56:38,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 175 transitions, 867 flow, removed 12 selfloop flow, removed 14 redundant places. [2024-11-17 07:56:38,729 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 275 flow [2024-11-17 07:56:38,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2024-11-17 07:56:38,729 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-17 07:56:38,730 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 275 flow [2024-11-17 07:56:38,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:38,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:38,730 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:38,747 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:56:38,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:38,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:38,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash -766480599, now seen corresponding path program 1 times [2024-11-17 07:56:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956867926] [2024-11-17 07:56:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:39,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:39,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956867926] [2024-11-17 07:56:39,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956867926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:39,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106962985] [2024-11-17 07:56:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:39,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:39,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:39,012 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:39,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:56:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:39,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:39,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:39,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:39,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:39,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106962985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:39,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:39,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:56:39,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174916469] [2024-11-17 07:56:39,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:39,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:56:39,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:39,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:56:39,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:56:39,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-17 07:56:39,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 275 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:39,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:39,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-17 07:56:39,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:40,069 INFO L124 PetriNetUnfolderBase]: 5212/9267 cut-off events. [2024-11-17 07:56:40,069 INFO L125 PetriNetUnfolderBase]: For 7528/7828 co-relation queries the response was YES. [2024-11-17 07:56:40,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23160 conditions, 9267 events. 5212/9267 cut-off events. For 7528/7828 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 65284 event pairs, 1280 based on Foata normal form. 330/9398 useless extension candidates. Maximal degree in co-relation 23079. Up to 2962 conditions per place. [2024-11-17 07:56:40,126 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 191 selfloop transitions, 13 changer transitions 0/224 dead transitions. [2024-11-17 07:56:40,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 224 transitions, 1407 flow [2024-11-17 07:56:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:56:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:56:40,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 322 transitions. [2024-11-17 07:56:40,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.644 [2024-11-17 07:56:40,128 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 275 flow. Second operand 10 states and 322 transitions. [2024-11-17 07:56:40,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 224 transitions, 1407 flow [2024-11-17 07:56:40,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 224 transitions, 1324 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-17 07:56:40,137 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 344 flow [2024-11-17 07:56:40,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2024-11-17 07:56:40,138 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-17 07:56:40,139 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 344 flow [2024-11-17 07:56:40,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:40,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:40,139 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:40,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:56:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:40,340 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:40,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1350499903, now seen corresponding path program 2 times [2024-11-17 07:56:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962968741] [2024-11-17 07:56:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-17 07:56:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962968741] [2024-11-17 07:56:40,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962968741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221213661] [2024-11-17 07:56:40,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:56:40,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:40,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:40,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:40,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:56:40,631 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:56:40,631 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:56:40,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:56:40,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-17 07:56:40,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:40,836 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-17 07:56:40,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221213661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:40,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:40,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-17 07:56:40,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557126908] [2024-11-17 07:56:40,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:40,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 07:56:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:40,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 07:56:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-17 07:56:40,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-17 07:56:40,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 344 flow. Second operand has 13 states, 13 states have (on average 17.46153846153846) internal successors, (227), 13 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:40,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:40,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-17 07:56:40,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:43,291 INFO L124 PetriNetUnfolderBase]: 14307/23492 cut-off events. [2024-11-17 07:56:43,291 INFO L125 PetriNetUnfolderBase]: For 26708/27612 co-relation queries the response was YES. [2024-11-17 07:56:43,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63791 conditions, 23492 events. 14307/23492 cut-off events. For 26708/27612 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 175931 event pairs, 3603 based on Foata normal form. 212/23246 useless extension candidates. Maximal degree in co-relation 50406. Up to 4342 conditions per place. [2024-11-17 07:56:43,420 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 154 selfloop transitions, 39 changer transitions 45/254 dead transitions. [2024-11-17 07:56:43,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 254 transitions, 1634 flow [2024-11-17 07:56:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:56:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:56:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 398 transitions. [2024-11-17 07:56:43,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4682352941176471 [2024-11-17 07:56:43,422 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 344 flow. Second operand 17 states and 398 transitions. [2024-11-17 07:56:43,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 254 transitions, 1634 flow [2024-11-17 07:56:43,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 254 transitions, 1531 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-11-17 07:56:43,494 INFO L231 Difference]: Finished difference. Result has 103 places, 89 transitions, 499 flow [2024-11-17 07:56:43,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=499, PETRI_PLACES=103, PETRI_TRANSITIONS=89} [2024-11-17 07:56:43,495 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 55 predicate places. [2024-11-17 07:56:43,496 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 499 flow [2024-11-17 07:56:43,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.46153846153846) internal successors, (227), 13 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:43,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:43,496 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:43,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 07:56:43,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-17 07:56:43,701 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-17 07:56:43,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1476183906, now seen corresponding path program 2 times [2024-11-17 07:56:43,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:43,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504734011] [2024-11-17 07:56:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:43,892 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-17 07:56:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504734011] [2024-11-17 07:56:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504734011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151157273] [2024-11-17 07:56:43,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:56:43,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:43,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:43,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:43,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 07:56:43,968 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:56:43,968 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:56:43,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:56:43,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-17 07:56:44,040 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-17 07:56:44,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151157273] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:44,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:44,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-17 07:56:44,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100338477] [2024-11-17 07:56:44,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:44,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 07:56:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 07:56:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-17 07:56:44,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-17 07:56:44,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 499 flow. Second operand has 13 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:44,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:44,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-17 07:56:44,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:46,254 INFO L124 PetriNetUnfolderBase]: 13326/21219 cut-off events. [2024-11-17 07:56:46,254 INFO L125 PetriNetUnfolderBase]: For 37452/38688 co-relation queries the response was YES. [2024-11-17 07:56:46,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60187 conditions, 21219 events. 13326/21219 cut-off events. For 37452/38688 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 155348 event pairs, 2326 based on Foata normal form. 841/21979 useless extension candidates. Maximal degree in co-relation 44930. Up to 4731 conditions per place. [2024-11-17 07:56:46,311 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 0 selfloop transitions, 0 changer transitions 255/255 dead transitions. [2024-11-17 07:56:46,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 255 transitions, 1852 flow [2024-11-17 07:56:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 07:56:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-17 07:56:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 387 transitions. [2024-11-17 07:56:46,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45529411764705885 [2024-11-17 07:56:46,314 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 499 flow. Second operand 17 states and 387 transitions. [2024-11-17 07:56:46,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 255 transitions, 1852 flow [2024-11-17 07:56:46,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 255 transitions, 1819 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-17 07:56:46,376 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2024-11-17 07:56:46,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2024-11-17 07:56:46,377 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 59 predicate places. [2024-11-17 07:56:46,377 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2024-11-17 07:56:46,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:46,380 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-17 07:56:46,380 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-17 07:56:46,380 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-17 07:56:46,381 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-17 07:56:46,382 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-17 07:56:46,382 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-17 07:56:46,382 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-17 07:56:46,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 07:56:46,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-17 07:56:46,587 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:46,591 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:56:46,591 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:56:46,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:56:46 BasicIcfg [2024-11-17 07:56:46,595 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:56:46,596 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:56:46,596 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:56:46,596 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:56:46,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:29" (3/4) ... [2024-11-17 07:56:46,599 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:56:46,602 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:56:46,602 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:56:46,603 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-17 07:56:46,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-17 07:56:46,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-17 07:56:46,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-17 07:56:46,610 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 07:56:46,700 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:56:46,703 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:56:46,703 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:56:46,703 INFO L158 Benchmark]: Toolchain (without parser) took 18136.43ms. Allocated memory was 157.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 122.5MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 537.7MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,703 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 104.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.84ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 108.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.87ms. Allocated memory is still 157.3MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: Boogie Preprocessor took 39.62ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: IcfgBuilder took 681.40ms. Allocated memory is still 157.3MB. Free memory was 104.7MB in the beginning and 98.3MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: TraceAbstraction took 16958.47ms. Allocated memory was 157.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 97.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 623.6MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,704 INFO L158 Benchmark]: Witness Printer took 107.11ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:56:46,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 104.9MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.84ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 108.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.87ms. Allocated memory is still 157.3MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.62ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 681.40ms. Allocated memory is still 157.3MB. Free memory was 104.7MB in the beginning and 98.3MB in the end (delta: 6.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16958.47ms. Allocated memory was 157.3MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 97.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 623.6MB. Max. memory is 16.1GB. * Witness Printer took 107.11ms. Allocated memory is still 2.0GB. Free memory was 1.5GB in the beginning and 1.5GB 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: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: 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 7 procedures, 74 locations, 13 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: 16.8s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1491 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1385 mSDsluCounter, 1093 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1081 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5818 IncrementalHoareTripleChecker+Invalid, 5875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 12 mSDtfsCounter, 5818 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 563 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=12, InterpolantAutomatonStates: 134, 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, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 497 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 685 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 33 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 440/677 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:56:46,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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