./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:38:59,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:39:00,033 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:39:00,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:39:00,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:39:00,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:39:00,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:39:00,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:39:00,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:39:00,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:39:00,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:39:00,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:39:00,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:39:00,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:39:00,068 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:39:00,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:39:00,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:39:00,069 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:39:00,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:39:00,069 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:39:00,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:39:00,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:39:00,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:39:00,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:39:00,071 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:39:00,071 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:39:00,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:39:00,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:39:00,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:39:00,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:39:00,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:39:00,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:39:00,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:39:00,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:39:00,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:39:00,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:39:00,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:39:00,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:39:00,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:39:00,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:39:00,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:39:00,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:39:00,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:39:00,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:39:00,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d61eb304445c3cb39dfadfa4748d680ea5f0f4958f8bc176e8bc3c77c47e674 [2024-10-13 16:39:00,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:39:00,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:39:00,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:39:00,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:39:00,321 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:39:00,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-10-13 16:39:01,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:39:01,805 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:39:01,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/safestack_relacy.i [2024-10-13 16:39:01,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a393aec/2d097327286440d0a36fb4ded6bd137f/FLAG0ef15a5a2 [2024-10-13 16:39:01,839 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a393aec/2d097327286440d0a36fb4ded6bd137f [2024-10-13 16:39:01,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:39:01,843 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:39:01,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:39:01,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:39:01,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:39:01,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:39:01" (1/1) ... [2024-10-13 16:39:01,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1839242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:01, skipping insertion in model container [2024-10-13 16:39:01,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:39:01" (1/1) ... [2024-10-13 16:39:01,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:39:02,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:39:02,465 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:39:02,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:39:02,677 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:39:02,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02 WrapperNode [2024-10-13 16:39:02,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:39:02,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:39:02,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:39:02,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:39:02,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,768 INFO L138 Inliner]: procedures = 481, calls = 75, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 304 [2024-10-13 16:39:02,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:39:02,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:39:02,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:39:02,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:39:02,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,793 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,826 INFO L175 MemorySlicer]: Split 48 memory accesses to 4 slices as follows [2, 5, 7, 34]. 71 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 3, 2, 8]. The 15 writes are split as follows [0, 1, 2, 12]. [2024-10-13 16:39:02,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:39:02,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:39:02,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:39:02,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:39:02,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (1/1) ... [2024-10-13 16:39:02,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:39:02,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:02,916 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) [2024-10-13 16:39:02,924 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 [2024-10-13 16:39:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:39:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 16:39:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-13 16:39:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:39:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 16:39:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 16:39:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 16:39:02,972 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:39:03,198 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:39:03,200 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:39:03,567 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:39:03,568 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:39:03,802 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:39:03,802 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-13 16:39:03,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:39:03 BoogieIcfgContainer [2024-10-13 16:39:03,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:39:03,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:39:03,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:39:03,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:39:03,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:39:01" (1/3) ... [2024-10-13 16:39:03,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78edb420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:39:03, skipping insertion in model container [2024-10-13 16:39:03,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:39:02" (2/3) ... [2024-10-13 16:39:03,811 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78edb420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:39:03, skipping insertion in model container [2024-10-13 16:39:03,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:39:03" (3/3) ... [2024-10-13 16:39:03,813 INFO L112 eAbstractionObserver]: Analyzing ICFG safestack_relacy.i [2024-10-13 16:39:03,830 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:39:03,830 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-13 16:39:03,830 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:39:03,890 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 16:39:03,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 87 transitions, 181 flow [2024-10-13 16:39:03,957 INFO L124 PetriNetUnfolderBase]: 12/91 cut-off events. [2024-10-13 16:39:03,958 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 16:39:03,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 12/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 51. Up to 3 conditions per place. [2024-10-13 16:39:03,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 87 transitions, 181 flow [2024-10-13 16:39:03,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 86 transitions, 179 flow [2024-10-13 16:39:03,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:39:03,986 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;@70c343c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:39:03,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-13 16:39:03,990 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:39:03,991 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-13 16:39:03,991 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:03,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:03,992 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:39:03,992 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:03,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:03,997 INFO L85 PathProgramCache]: Analyzing trace with hash -913335993, now seen corresponding path program 1 times [2024-10-13 16:39:04,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:04,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811046990] [2024-10-13 16:39:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:04,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:04,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:04,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811046990] [2024-10-13 16:39:04,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811046990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:04,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:04,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:39:04,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927861319] [2024-10-13 16:39:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:04,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:04,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:04,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:04,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:04,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 87 [2024-10-13 16:39:04,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:04,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:04,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 87 [2024-10-13 16:39:04,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:04,746 INFO L124 PetriNetUnfolderBase]: 223/496 cut-off events. [2024-10-13 16:39:04,746 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 16:39:04,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 496 events. 223/496 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1950 event pairs, 180 based on Foata normal form. 3/366 useless extension candidates. Maximal degree in co-relation 886. Up to 432 conditions per place. [2024-10-13 16:39:04,752 INFO L140 encePairwiseOnDemand]: 77/87 looper letters, 52 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-10-13 16:39:04,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 78 transitions, 271 flow [2024-10-13 16:39:04,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-10-13 16:39:04,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5134099616858238 [2024-10-13 16:39:04,773 INFO L175 Difference]: Start difference. First operand has 78 places, 86 transitions, 179 flow. Second operand 3 states and 134 transitions. [2024-10-13 16:39:04,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 78 transitions, 271 flow [2024-10-13 16:39:04,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 271 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:39:04,782 INFO L231 Difference]: Finished difference. Result has 76 places, 78 transitions, 167 flow [2024-10-13 16:39:04,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=76, PETRI_TRANSITIONS=78} [2024-10-13 16:39:04,788 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, -2 predicate places. [2024-10-13 16:39:04,790 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 78 transitions, 167 flow [2024-10-13 16:39:04,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:04,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:04,791 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:04,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:39:04,791 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:04,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:04,792 INFO L85 PathProgramCache]: Analyzing trace with hash -573887276, now seen corresponding path program 1 times [2024-10-13 16:39:04,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:04,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092762651] [2024-10-13 16:39:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:04,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:04,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:04,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:04,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092762651] [2024-10-13 16:39:04,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092762651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:04,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:04,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420557606] [2024-10-13 16:39:04,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:04,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:04,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:04,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:04,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:04,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 87 [2024-10-13 16:39:04,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:04,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:04,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 87 [2024-10-13 16:39:04,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:05,120 INFO L124 PetriNetUnfolderBase]: 224/512 cut-off events. [2024-10-13 16:39:05,120 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 16:39:05,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 512 events. 224/512 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2081 event pairs, 180 based on Foata normal form. 1/378 useless extension candidates. Maximal degree in co-relation 906. Up to 446 conditions per place. [2024-10-13 16:39:05,125 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 60 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2024-10-13 16:39:05,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 85 transitions, 309 flow [2024-10-13 16:39:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-10-13 16:39:05,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478927203065134 [2024-10-13 16:39:05,130 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 167 flow. Second operand 3 states and 143 transitions. [2024-10-13 16:39:05,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 85 transitions, 309 flow [2024-10-13 16:39:05,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 85 transitions, 303 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:05,135 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 184 flow [2024-10-13 16:39:05,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=184, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2024-10-13 16:39:05,156 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, -1 predicate places. [2024-10-13 16:39:05,156 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 184 flow [2024-10-13 16:39:05,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:05,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:05,156 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:05,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:39:05,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:05,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:05,157 INFO L85 PathProgramCache]: Analyzing trace with hash 2039049889, now seen corresponding path program 1 times [2024-10-13 16:39:05,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:05,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120790306] [2024-10-13 16:39:05,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:05,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:05,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:05,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120790306] [2024-10-13 16:39:05,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120790306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:05,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:05,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:05,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452067599] [2024-10-13 16:39:05,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:05,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:05,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:05,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:05,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 87 [2024-10-13 16:39:05,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:05,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:05,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 87 [2024-10-13 16:39:05,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:05,476 INFO L124 PetriNetUnfolderBase]: 224/510 cut-off events. [2024-10-13 16:39:05,476 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 16:39:05,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 510 events. 224/510 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2066 event pairs, 180 based on Foata normal form. 2/380 useless extension candidates. Maximal degree in co-relation 906. Up to 448 conditions per place. [2024-10-13 16:39:05,478 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 61 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2024-10-13 16:39:05,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 85 transitions, 324 flow [2024-10-13 16:39:05,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:05,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-10-13 16:39:05,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46839080459770116 [2024-10-13 16:39:05,480 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 184 flow. Second operand 4 states and 163 transitions. [2024-10-13 16:39:05,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 85 transitions, 324 flow [2024-10-13 16:39:05,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:05,482 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 202 flow [2024-10-13 16:39:05,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2024-10-13 16:39:05,483 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2024-10-13 16:39:05,483 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 202 flow [2024-10-13 16:39:05,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:05,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:05,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:05,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:39:05,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:05,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -883999795, now seen corresponding path program 1 times [2024-10-13 16:39:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076250489] [2024-10-13 16:39:05,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:05,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076250489] [2024-10-13 16:39:05,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076250489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:05,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:05,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364503702] [2024-10-13 16:39:05,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:05,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:05,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:05,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 87 [2024-10-13 16:39:05,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:05,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:05,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 87 [2024-10-13 16:39:05,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:05,811 INFO L124 PetriNetUnfolderBase]: 223/505 cut-off events. [2024-10-13 16:39:05,812 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-13 16:39:05,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 978 conditions, 505 events. 223/505 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1956 event pairs, 180 based on Foata normal form. 1/376 useless extension candidates. Maximal degree in co-relation 941. Up to 432 conditions per place. [2024-10-13 16:39:05,815 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 57 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-10-13 16:39:05,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 321 flow [2024-10-13 16:39:05,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:05,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-13 16:39:05,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41954022988505746 [2024-10-13 16:39:05,819 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 202 flow. Second operand 4 states and 146 transitions. [2024-10-13 16:39:05,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 321 flow [2024-10-13 16:39:05,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 82 transitions, 315 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:05,822 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 201 flow [2024-10-13 16:39:05,825 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2024-10-13 16:39:05,826 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 5 predicate places. [2024-10-13 16:39:05,826 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 201 flow [2024-10-13 16:39:05,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:05,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:05,827 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:05,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:39:05,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:05,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:05,829 INFO L85 PathProgramCache]: Analyzing trace with hash 172316855, now seen corresponding path program 1 times [2024-10-13 16:39:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:05,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517038677] [2024-10-13 16:39:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:05,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:05,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:05,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517038677] [2024-10-13 16:39:05,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517038677] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966132424] [2024-10-13 16:39:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:05,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:05,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:05,950 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) [2024-10-13 16:39:05,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:39:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:06,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 16:39:06,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:06,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:06,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:39:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966132424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:06,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:39:06,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 16:39:06,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494629248] [2024-10-13 16:39:06,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:06,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:06,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:06,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:06,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:39:06,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 87 [2024-10-13 16:39:06,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:06,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:06,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 87 [2024-10-13 16:39:06,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:06,288 INFO L124 PetriNetUnfolderBase]: 223/503 cut-off events. [2024-10-13 16:39:06,288 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-13 16:39:06,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 503 events. 223/503 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1946 event pairs, 180 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 935. Up to 436 conditions per place. [2024-10-13 16:39:06,291 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 53 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-10-13 16:39:06,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 311 flow [2024-10-13 16:39:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 151 transitions. [2024-10-13 16:39:06,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4339080459770115 [2024-10-13 16:39:06,292 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 201 flow. Second operand 4 states and 151 transitions. [2024-10-13 16:39:06,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 311 flow [2024-10-13 16:39:06,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 78 transitions, 303 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:39:06,294 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 197 flow [2024-10-13 16:39:06,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-10-13 16:39:06,295 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2024-10-13 16:39:06,295 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 197 flow [2024-10-13 16:39:06,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:06,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:06,295 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:06,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:39:06,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:06,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:06,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:06,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1046856044, now seen corresponding path program 1 times [2024-10-13 16:39:06,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:06,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289599786] [2024-10-13 16:39:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:06,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:06,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289599786] [2024-10-13 16:39:06,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289599786] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:06,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452299910] [2024-10-13 16:39:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:06,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:06,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:06,611 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) [2024-10-13 16:39:06,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:39:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:06,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:39:06,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:06,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:06,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452299910] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:06,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:06,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-13 16:39:06,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933284235] [2024-10-13 16:39:06,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:06,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 16:39:06,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:06,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 16:39:06,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:39:06,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 87 [2024-10-13 16:39:06,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 197 flow. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:06,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:06,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 87 [2024-10-13 16:39:06,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:07,075 INFO L124 PetriNetUnfolderBase]: 225/527 cut-off events. [2024-10-13 16:39:07,075 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-13 16:39:07,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 527 events. 225/527 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2149 event pairs, 180 based on Foata normal form. 3/400 useless extension candidates. Maximal degree in co-relation 979. Up to 442 conditions per place. [2024-10-13 16:39:07,077 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 62 selfloop transitions, 9 changer transitions 0/91 dead transitions. [2024-10-13 16:39:07,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 91 transitions, 377 flow [2024-10-13 16:39:07,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:39:07,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:39:07,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-10-13 16:39:07,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3973727422003284 [2024-10-13 16:39:07,079 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 197 flow. Second operand 7 states and 242 transitions. [2024-10-13 16:39:07,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 91 transitions, 377 flow [2024-10-13 16:39:07,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 91 transitions, 357 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:39:07,081 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 243 flow [2024-10-13 16:39:07,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=243, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2024-10-13 16:39:07,083 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 10 predicate places. [2024-10-13 16:39:07,083 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 243 flow [2024-10-13 16:39:07,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:07,084 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:07,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 16:39:07,284 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,SelfDestructingSolverStorable5 [2024-10-13 16:39:07,285 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:07,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1892252298, now seen corresponding path program 1 times [2024-10-13 16:39:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:07,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014602744] [2024-10-13 16:39:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:07,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 16:39:07,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:07,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014602744] [2024-10-13 16:39:07,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014602744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:07,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:07,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:07,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856922212] [2024-10-13 16:39:07,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:07,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:07,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:07,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 87 [2024-10-13 16:39:07,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:07,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 87 [2024-10-13 16:39:07,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:07,484 INFO L124 PetriNetUnfolderBase]: 189/478 cut-off events. [2024-10-13 16:39:07,484 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-13 16:39:07,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 478 events. 189/478 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2014 event pairs, 92 based on Foata normal form. 33/425 useless extension candidates. Maximal degree in co-relation 878. Up to 237 conditions per place. [2024-10-13 16:39:07,487 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 89 selfloop transitions, 5 changer transitions 3/113 dead transitions. [2024-10-13 16:39:07,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 113 transitions, 493 flow [2024-10-13 16:39:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:07,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-10-13 16:39:07,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6360153256704981 [2024-10-13 16:39:07,489 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 243 flow. Second operand 3 states and 166 transitions. [2024-10-13 16:39:07,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 113 transitions, 493 flow [2024-10-13 16:39:07,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 113 transitions, 483 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:07,495 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 224 flow [2024-10-13 16:39:07,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2024-10-13 16:39:07,496 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 5 predicate places. [2024-10-13 16:39:07,496 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 224 flow [2024-10-13 16:39:07,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:07,496 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:07,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:39:07,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:07,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash 643317505, now seen corresponding path program 1 times [2024-10-13 16:39:07,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:07,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027959084] [2024-10-13 16:39:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:39:07,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:07,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027959084] [2024-10-13 16:39:07,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027959084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754392792] [2024-10-13 16:39:07,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:07,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:07,660 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) [2024-10-13 16:39:07,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:39:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:07,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:39:07,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:39:07,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:07,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:39:07,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754392792] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:07,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:07,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-10-13 16:39:07,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63929459] [2024-10-13 16:39:07,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:07,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 16:39:07,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:07,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 16:39:07,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-13 16:39:07,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 87 [2024-10-13 16:39:07,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 224 flow. Second operand has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 13 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:07,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 87 [2024-10-13 16:39:07,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:08,151 INFO L124 PetriNetUnfolderBase]: 188/441 cut-off events. [2024-10-13 16:39:08,152 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-10-13 16:39:08,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 441 events. 188/441 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1581 event pairs, 150 based on Foata normal form. 2/388 useless extension candidates. Maximal degree in co-relation 894. Up to 364 conditions per place. [2024-10-13 16:39:08,153 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 56 selfloop transitions, 9 changer transitions 0/77 dead transitions. [2024-10-13 16:39:08,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 348 flow [2024-10-13 16:39:08,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:39:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:39:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-10-13 16:39:08,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3275862068965517 [2024-10-13 16:39:08,155 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 224 flow. Second operand 6 states and 171 transitions. [2024-10-13 16:39:08,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 348 flow [2024-10-13 16:39:08,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 338 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:39:08,156 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 233 flow [2024-10-13 16:39:08,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-10-13 16:39:08,157 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 5 predicate places. [2024-10-13 16:39:08,157 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 233 flow [2024-10-13 16:39:08,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.76923076923077) internal successors, (270), 13 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:08,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:08,158 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:08,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 16:39:08,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:08,359 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:08,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:08,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2104797876, now seen corresponding path program 1 times [2024-10-13 16:39:08,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:08,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764247679] [2024-10-13 16:39:08,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:08,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-13 16:39:08,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:08,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764247679] [2024-10-13 16:39:08,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764247679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:08,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:08,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:08,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470872268] [2024-10-13 16:39:08,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:08,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:08,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:08,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:08,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 87 [2024-10-13 16:39:08,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:08,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:08,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 87 [2024-10-13 16:39:08,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:08,576 INFO L124 PetriNetUnfolderBase]: 188/440 cut-off events. [2024-10-13 16:39:08,576 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-10-13 16:39:08,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 440 events. 188/440 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1574 event pairs, 150 based on Foata normal form. 1/386 useless extension candidates. Maximal degree in co-relation 865. Up to 375 conditions per place. [2024-10-13 16:39:08,579 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 50 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2024-10-13 16:39:08,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 74 transitions, 349 flow [2024-10-13 16:39:08,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:08,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-10-13 16:39:08,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43103448275862066 [2024-10-13 16:39:08,580 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 233 flow. Second operand 4 states and 150 transitions. [2024-10-13 16:39:08,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 74 transitions, 349 flow [2024-10-13 16:39:08,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 74 transitions, 338 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 16:39:08,583 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 246 flow [2024-10-13 16:39:08,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2024-10-13 16:39:08,584 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2024-10-13 16:39:08,584 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 246 flow [2024-10-13 16:39:08,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:08,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:08,585 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:08,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:39:08,586 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-13 16:39:08,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash 924928574, now seen corresponding path program 2 times [2024-10-13 16:39:08,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:08,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313653162] [2024-10-13 16:39:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:08,619 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:39:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:08,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:39:08,669 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 16:39:08,670 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-10-13 16:39:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-10-13 16:39:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-10-13 16:39:08,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-10-13 16:39:08,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-10-13 16:39:08,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-10-13 16:39:08,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-10-13 16:39:08,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-10-13 16:39:08,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 16:39:08,674 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:08,678 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 16:39:08,678 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 16:39:08,734 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 16:39:08,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 131 transitions, 278 flow [2024-10-13 16:39:08,747 INFO L124 PetriNetUnfolderBase]: 23/158 cut-off events. [2024-10-13 16:39:08,747 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-13 16:39:08,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 158 events. 23/158 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 563 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 102. Up to 6 conditions per place. [2024-10-13 16:39:08,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 131 transitions, 278 flow [2024-10-13 16:39:08,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 131 transitions, 278 flow [2024-10-13 16:39:08,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:39:08,753 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;@70c343c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:39:08,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-13 16:39:08,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:39:08,755 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-13 16:39:08,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:08,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:08,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:39:08,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:08,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1332870553, now seen corresponding path program 1 times [2024-10-13 16:39:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520409977] [2024-10-13 16:39:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:08,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:08,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520409977] [2024-10-13 16:39:08,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520409977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:08,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:08,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:39:08,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951423339] [2024-10-13 16:39:08,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:08,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:08,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:08,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:08,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:08,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:08,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 131 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:08,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:08,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:08,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:10,749 INFO L124 PetriNetUnfolderBase]: 15608/23920 cut-off events. [2024-10-13 16:39:10,749 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2024-10-13 16:39:10,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46989 conditions, 23920 events. 15608/23920 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 150293 event pairs, 13528 based on Foata normal form. 3/17783 useless extension candidates. Maximal degree in co-relation 38630. Up to 22895 conditions per place. [2024-10-13 16:39:10,883 INFO L140 encePairwiseOnDemand]: 118/131 looper letters, 89 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-10-13 16:39:10,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 120 transitions, 438 flow [2024-10-13 16:39:10,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-10-13 16:39:10,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48091603053435117 [2024-10-13 16:39:10,885 INFO L175 Difference]: Start difference. First operand has 114 places, 131 transitions, 278 flow. Second operand 3 states and 189 transitions. [2024-10-13 16:39:10,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 120 transitions, 438 flow [2024-10-13 16:39:10,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 120 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:39:10,888 INFO L231 Difference]: Finished difference. Result has 112 places, 120 transitions, 260 flow [2024-10-13 16:39:10,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=112, PETRI_TRANSITIONS=120} [2024-10-13 16:39:10,889 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, -2 predicate places. [2024-10-13 16:39:10,889 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 120 transitions, 260 flow [2024-10-13 16:39:10,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:10,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:10,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:10,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:39:10,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:10,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash -573002793, now seen corresponding path program 1 times [2024-10-13 16:39:10,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:10,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192412027] [2024-10-13 16:39:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:10,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:10,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:10,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192412027] [2024-10-13 16:39:10,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192412027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:10,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:10,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430746534] [2024-10-13 16:39:10,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:10,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:10,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:10,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 131 [2024-10-13 16:39:10,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 120 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:10,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:10,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 131 [2024-10-13 16:39:10,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:12,760 INFO L124 PetriNetUnfolderBase]: 15609/23936 cut-off events. [2024-10-13 16:39:12,760 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2024-10-13 16:39:12,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47018 conditions, 23936 events. 15609/23936 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 150373 event pairs, 13528 based on Foata normal form. 1/17795 useless extension candidates. Maximal degree in co-relation 46950. Up to 22909 conditions per place. [2024-10-13 16:39:12,882 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 97 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-10-13 16:39:12,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 127 transitions, 476 flow [2024-10-13 16:39:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:12,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-10-13 16:39:12,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4961832061068702 [2024-10-13 16:39:12,884 INFO L175 Difference]: Start difference. First operand has 112 places, 120 transitions, 260 flow. Second operand 3 states and 195 transitions. [2024-10-13 16:39:12,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 127 transitions, 476 flow [2024-10-13 16:39:12,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 127 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:12,887 INFO L231 Difference]: Finished difference. Result has 113 places, 122 transitions, 277 flow [2024-10-13 16:39:12,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=113, PETRI_TRANSITIONS=122} [2024-10-13 16:39:12,888 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, -1 predicate places. [2024-10-13 16:39:12,888 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 122 transitions, 277 flow [2024-10-13 16:39:12,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:12,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:12,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:12,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:39:12,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:12,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1457046300, now seen corresponding path program 1 times [2024-10-13 16:39:12,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:12,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90088639] [2024-10-13 16:39:12,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:12,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:12,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:12,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90088639] [2024-10-13 16:39:12,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90088639] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:12,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:12,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:12,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215341975] [2024-10-13 16:39:12,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:12,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:12,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:12,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:12,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 122 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:12,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:12,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:12,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:14,705 INFO L124 PetriNetUnfolderBase]: 15609/23934 cut-off events. [2024-10-13 16:39:14,705 INFO L125 PetriNetUnfolderBase]: For 267/267 co-relation queries the response was YES. [2024-10-13 16:39:14,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47025 conditions, 23934 events. 15609/23934 cut-off events. For 267/267 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 150335 event pairs, 13528 based on Foata normal form. 2/17797 useless extension candidates. Maximal degree in co-relation 46950. Up to 22911 conditions per place. [2024-10-13 16:39:14,854 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 98 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-10-13 16:39:14,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 127 transitions, 491 flow [2024-10-13 16:39:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:14,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:14,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 220 transitions. [2024-10-13 16:39:14,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4198473282442748 [2024-10-13 16:39:14,859 INFO L175 Difference]: Start difference. First operand has 113 places, 122 transitions, 277 flow. Second operand 4 states and 220 transitions. [2024-10-13 16:39:14,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 127 transitions, 491 flow [2024-10-13 16:39:14,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 127 transitions, 488 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:14,861 INFO L231 Difference]: Finished difference. Result has 117 places, 123 transitions, 295 flow [2024-10-13 16:39:14,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=117, PETRI_TRANSITIONS=123} [2024-10-13 16:39:14,864 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 3 predicate places. [2024-10-13 16:39:14,864 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 123 transitions, 295 flow [2024-10-13 16:39:14,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:14,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:14,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:14,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:39:14,865 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:14,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash -128467849, now seen corresponding path program 1 times [2024-10-13 16:39:14,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408101182] [2024-10-13 16:39:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:14,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:14,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408101182] [2024-10-13 16:39:14,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408101182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:14,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:14,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:14,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231750489] [2024-10-13 16:39:14,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:14,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:14,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:14,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:14,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:14,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 131 [2024-10-13 16:39:14,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 123 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:14,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:14,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 131 [2024-10-13 16:39:14,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:17,250 INFO L124 PetriNetUnfolderBase]: 15608/23929 cut-off events. [2024-10-13 16:39:17,250 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-10-13 16:39:17,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47023 conditions, 23929 events. 15608/23929 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 150173 event pairs, 13528 based on Foata normal form. 1/17793 useless extension candidates. Maximal degree in co-relation 46985. Up to 22895 conditions per place. [2024-10-13 16:39:17,394 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 94 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2024-10-13 16:39:17,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 124 transitions, 488 flow [2024-10-13 16:39:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:17,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-10-13 16:39:17,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38740458015267176 [2024-10-13 16:39:17,397 INFO L175 Difference]: Start difference. First operand has 117 places, 123 transitions, 295 flow. Second operand 4 states and 203 transitions. [2024-10-13 16:39:17,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 124 transitions, 488 flow [2024-10-13 16:39:17,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 124 transitions, 482 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:17,400 INFO L231 Difference]: Finished difference. Result has 119 places, 122 transitions, 294 flow [2024-10-13 16:39:17,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=119, PETRI_TRANSITIONS=122} [2024-10-13 16:39:17,401 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-10-13 16:39:17,401 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 122 transitions, 294 flow [2024-10-13 16:39:17,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:17,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:17,401 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:17,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:39:17,401 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:17,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash 350260247, now seen corresponding path program 1 times [2024-10-13 16:39:17,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:17,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184248375] [2024-10-13 16:39:17,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:17,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:17,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184248375] [2024-10-13 16:39:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184248375] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364024397] [2024-10-13 16:39:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:17,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:17,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:17,468 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) [2024-10-13 16:39:17,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:39:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:17,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 16:39:17,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:17,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:17,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:39:17,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364024397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:17,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:39:17,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-13 16:39:17,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388955505] [2024-10-13 16:39:17,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:17,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:17,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:17,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:17,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:39:17,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 131 [2024-10-13 16:39:17,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:17,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:17,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 131 [2024-10-13 16:39:17,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:19,643 INFO L124 PetriNetUnfolderBase]: 15608/23927 cut-off events. [2024-10-13 16:39:19,644 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-10-13 16:39:19,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47024 conditions, 23927 events. 15608/23927 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 150295 event pairs, 13528 based on Foata normal form. 2/17792 useless extension candidates. Maximal degree in co-relation 46979. Up to 22899 conditions per place. [2024-10-13 16:39:19,774 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 90 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2024-10-13 16:39:19,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 120 transitions, 478 flow [2024-10-13 16:39:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2024-10-13 16:39:19,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3969465648854962 [2024-10-13 16:39:19,776 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 294 flow. Second operand 4 states and 208 transitions. [2024-10-13 16:39:19,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 120 transitions, 478 flow [2024-10-13 16:39:19,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 120 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:39:19,779 INFO L231 Difference]: Finished difference. Result has 117 places, 120 transitions, 290 flow [2024-10-13 16:39:19,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=117, PETRI_TRANSITIONS=120} [2024-10-13 16:39:19,780 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 3 predicate places. [2024-10-13 16:39:19,780 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 120 transitions, 290 flow [2024-10-13 16:39:19,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:19,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:19,780 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:19,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 16:39:19,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-13 16:39:19,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:19,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2026833265, now seen corresponding path program 1 times [2024-10-13 16:39:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:19,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111386965] [2024-10-13 16:39:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:20,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:20,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111386965] [2024-10-13 16:39:20,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111386965] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:20,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213612484] [2024-10-13 16:39:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:20,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:20,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:20,080 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) [2024-10-13 16:39:20,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:39:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:20,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:39:20,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:20,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:20,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213612484] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:20,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:20,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-13 16:39:20,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79022259] [2024-10-13 16:39:20,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:20,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 16:39:20,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:20,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 16:39:20,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:39:20,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:20,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 120 transitions, 290 flow. Second operand has 10 states, 10 states have (on average 31.1) internal successors, (311), 10 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:20,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:20,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:20,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:22,554 INFO L124 PetriNetUnfolderBase]: 15610/23951 cut-off events. [2024-10-13 16:39:22,554 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2024-10-13 16:39:22,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47067 conditions, 23951 events. 15610/23951 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 150510 event pairs, 13528 based on Foata normal form. 3/17817 useless extension candidates. Maximal degree in co-relation 47023. Up to 22905 conditions per place. [2024-10-13 16:39:22,673 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 99 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2024-10-13 16:39:22,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 133 transitions, 544 flow [2024-10-13 16:39:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:39:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:39:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 314 transitions. [2024-10-13 16:39:22,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34242093784078514 [2024-10-13 16:39:22,675 INFO L175 Difference]: Start difference. First operand has 117 places, 120 transitions, 290 flow. Second operand 7 states and 314 transitions. [2024-10-13 16:39:22,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 133 transitions, 544 flow [2024-10-13 16:39:22,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 133 transitions, 524 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:39:22,677 INFO L231 Difference]: Finished difference. Result has 124 places, 125 transitions, 336 flow [2024-10-13 16:39:22,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=336, PETRI_PLACES=124, PETRI_TRANSITIONS=125} [2024-10-13 16:39:22,678 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 10 predicate places. [2024-10-13 16:39:22,678 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 125 transitions, 336 flow [2024-10-13 16:39:22,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.1) internal successors, (311), 10 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:22,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:22,679 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:22,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 16:39:22,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 16:39:22,883 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:22,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:22,883 INFO L85 PathProgramCache]: Analyzing trace with hash 452924471, now seen corresponding path program 1 times [2024-10-13 16:39:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:22,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102543206] [2024-10-13 16:39:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:22,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 16:39:22,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:22,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102543206] [2024-10-13 16:39:22,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102543206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:22,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:22,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:22,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397090160] [2024-10-13 16:39:22,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:22,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:22,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:22,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:22,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:22,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:22,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:22,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:25,076 INFO L124 PetriNetUnfolderBase]: 17842/27478 cut-off events. [2024-10-13 16:39:25,077 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-10-13 16:39:25,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53615 conditions, 27478 events. 17842/27478 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 185668 event pairs, 7605 based on Foata normal form. 98/20914 useless extension candidates. Maximal degree in co-relation 53566. Up to 19004 conditions per place. [2024-10-13 16:39:25,268 INFO L140 encePairwiseOnDemand]: 122/131 looper letters, 170 selfloop transitions, 6 changer transitions 1/200 dead transitions. [2024-10-13 16:39:25,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 200 transitions, 846 flow [2024-10-13 16:39:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-10-13 16:39:25,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6692111959287532 [2024-10-13 16:39:25,270 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 336 flow. Second operand 3 states and 263 transitions. [2024-10-13 16:39:25,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 200 transitions, 846 flow [2024-10-13 16:39:25,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 200 transitions, 836 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:25,274 INFO L231 Difference]: Finished difference. Result has 125 places, 126 transitions, 358 flow [2024-10-13 16:39:25,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=125, PETRI_TRANSITIONS=126} [2024-10-13 16:39:25,275 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 11 predicate places. [2024-10-13 16:39:25,275 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 126 transitions, 358 flow [2024-10-13 16:39:25,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:25,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:25,276 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:25,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 16:39:25,276 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:25,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:25,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1538161035, now seen corresponding path program 1 times [2024-10-13 16:39:25,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:25,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339056126] [2024-10-13 16:39:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:25,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 16:39:25,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339056126] [2024-10-13 16:39:25,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339056126] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:25,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846965318] [2024-10-13 16:39:25,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:25,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:25,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:25,379 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) [2024-10-13 16:39:25,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:39:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:25,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:39:25,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 16:39:25,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 16:39:25,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846965318] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:25,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:25,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-10-13 16:39:25,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992859863] [2024-10-13 16:39:25,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:25,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 16:39:25,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:25,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 16:39:25,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 16:39:25,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 131 [2024-10-13 16:39:25,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 126 transitions, 358 flow. Second operand has 11 states, 11 states have (on average 23.454545454545453) internal successors, (258), 11 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:25,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:25,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 131 [2024-10-13 16:39:25,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:28,201 INFO L124 PetriNetUnfolderBase]: 15548/24059 cut-off events. [2024-10-13 16:39:28,201 INFO L125 PetriNetUnfolderBase]: For 5376/5376 co-relation queries the response was YES. [2024-10-13 16:39:28,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50333 conditions, 24059 events. 15548/24059 cut-off events. For 5376/5376 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 161819 event pairs, 6519 based on Foata normal form. 1029/20096 useless extension candidates. Maximal degree in co-relation 50282. Up to 15604 conditions per place. [2024-10-13 16:39:28,359 INFO L140 encePairwiseOnDemand]: 118/131 looper letters, 236 selfloop transitions, 13 changer transitions 2/270 dead transitions. [2024-10-13 16:39:28,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 270 transitions, 1147 flow [2024-10-13 16:39:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 16:39:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 16:39:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 423 transitions. [2024-10-13 16:39:28,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35877862595419846 [2024-10-13 16:39:28,361 INFO L175 Difference]: Start difference. First operand has 125 places, 126 transitions, 358 flow. Second operand 9 states and 423 transitions. [2024-10-13 16:39:28,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 270 transitions, 1147 flow [2024-10-13 16:39:28,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 270 transitions, 1142 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:39:28,368 INFO L231 Difference]: Finished difference. Result has 132 places, 124 transitions, 377 flow [2024-10-13 16:39:28,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=377, PETRI_PLACES=132, PETRI_TRANSITIONS=124} [2024-10-13 16:39:28,369 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 18 predicate places. [2024-10-13 16:39:28,369 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 124 transitions, 377 flow [2024-10-13 16:39:28,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.454545454545453) internal successors, (258), 11 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:28,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:28,370 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:28,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 16:39:28,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 16:39:28,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:28,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1904927924, now seen corresponding path program 1 times [2024-10-13 16:39:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404864587] [2024-10-13 16:39:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:28,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-13 16:39:28,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:28,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404864587] [2024-10-13 16:39:28,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404864587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:28,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:28,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:39:28,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81457491] [2024-10-13 16:39:28,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:28,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:28,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:28,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:28,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:28,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:28,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 124 transitions, 377 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:28,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:28,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:28,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:30,583 INFO L124 PetriNetUnfolderBase]: 13331/20559 cut-off events. [2024-10-13 16:39:30,584 INFO L125 PetriNetUnfolderBase]: For 5000/6037 co-relation queries the response was YES. [2024-10-13 16:39:30,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44056 conditions, 20559 events. 13331/20559 cut-off events. For 5000/6037 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 127952 event pairs, 11565 based on Foata normal form. 1/17184 useless extension candidates. Maximal degree in co-relation 44002. Up to 19715 conditions per place. [2024-10-13 16:39:30,755 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 91 selfloop transitions, 9 changer transitions 0/124 dead transitions. [2024-10-13 16:39:30,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 124 transitions, 575 flow [2024-10-13 16:39:30,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:30,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-10-13 16:39:30,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40076335877862596 [2024-10-13 16:39:30,757 INFO L175 Difference]: Start difference. First operand has 132 places, 124 transitions, 377 flow. Second operand 4 states and 210 transitions. [2024-10-13 16:39:30,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 124 transitions, 575 flow [2024-10-13 16:39:30,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 124 transitions, 558 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:39:30,761 INFO L231 Difference]: Finished difference. Result has 128 places, 124 transitions, 384 flow [2024-10-13 16:39:30,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=384, PETRI_PLACES=128, PETRI_TRANSITIONS=124} [2024-10-13 16:39:30,761 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 14 predicate places. [2024-10-13 16:39:30,762 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 124 transitions, 384 flow [2024-10-13 16:39:30,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:30,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:30,762 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:30,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 16:39:30,762 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:30,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:30,762 INFO L85 PathProgramCache]: Analyzing trace with hash 11485839, now seen corresponding path program 2 times [2024-10-13 16:39:30,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:30,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061949122] [2024-10-13 16:39:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:30,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:30,863 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-13 16:39:30,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:30,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061949122] [2024-10-13 16:39:30,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061949122] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:39:30,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494774581] [2024-10-13 16:39:30,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:39:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:30,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:39:30,865 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) [2024-10-13 16:39:30,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 16:39:30,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:39:30,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:39:30,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:39:30,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:39:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-13 16:39:31,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:39:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-13 16:39:31,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494774581] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:39:31,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:39:31,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-10-13 16:39:31,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176810362] [2024-10-13 16:39:31,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:39:31,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 16:39:31,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 16:39:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:39:31,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 131 [2024-10-13 16:39:31,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 124 transitions, 384 flow. Second operand has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:31,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:31,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 131 [2024-10-13 16:39:31,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:32,959 INFO L124 PetriNetUnfolderBase]: 13331/20558 cut-off events. [2024-10-13 16:39:32,959 INFO L125 PetriNetUnfolderBase]: For 4840/5877 co-relation queries the response was YES. [2024-10-13 16:39:33,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42920 conditions, 20558 events. 13331/20558 cut-off events. For 4840/5877 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 127909 event pairs, 11565 based on Foata normal form. 1/17183 useless extension candidates. Maximal degree in co-relation 42865. Up to 19703 conditions per place. [2024-10-13 16:39:33,113 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 96 selfloop transitions, 9 changer transitions 0/125 dead transitions. [2024-10-13 16:39:33,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 125 transitions, 592 flow [2024-10-13 16:39:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:39:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 193 transitions. [2024-10-13 16:39:33,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3683206106870229 [2024-10-13 16:39:33,114 INFO L175 Difference]: Start difference. First operand has 128 places, 124 transitions, 384 flow. Second operand 4 states and 193 transitions. [2024-10-13 16:39:33,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 125 transitions, 592 flow [2024-10-13 16:39:33,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 125 transitions, 572 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 16:39:33,117 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 389 flow [2024-10-13 16:39:33,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=389, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2024-10-13 16:39:33,118 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 13 predicate places. [2024-10-13 16:39:33,118 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 389 flow [2024-10-13 16:39:33,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:33,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:33,119 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:33,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 16:39:33,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:39:33,319 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:33,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2456664, now seen corresponding path program 1 times [2024-10-13 16:39:33,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:33,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070947192] [2024-10-13 16:39:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:33,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-13 16:39:33,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:33,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070947192] [2024-10-13 16:39:33,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070947192] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:33,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:33,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:33,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777070112] [2024-10-13 16:39:33,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:33,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:33,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:33,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:33,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:33,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 131 [2024-10-13 16:39:33,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:33,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:33,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 131 [2024-10-13 16:39:33,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:35,252 INFO L124 PetriNetUnfolderBase]: 13376/20597 cut-off events. [2024-10-13 16:39:35,253 INFO L125 PetriNetUnfolderBase]: For 1662/1662 co-relation queries the response was YES. [2024-10-13 16:39:35,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43093 conditions, 20597 events. 13376/20597 cut-off events. For 1662/1662 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 125771 event pairs, 9346 based on Foata normal form. 1/17238 useless extension candidates. Maximal degree in co-relation 43007. Up to 16113 conditions per place. [2024-10-13 16:39:35,402 INFO L140 encePairwiseOnDemand]: 123/131 looper letters, 161 selfloop transitions, 8 changer transitions 0/192 dead transitions. [2024-10-13 16:39:35,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 859 flow [2024-10-13 16:39:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:39:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:39:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-10-13 16:39:35,404 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6361323155216285 [2024-10-13 16:39:35,404 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 389 flow. Second operand 3 states and 250 transitions. [2024-10-13 16:39:35,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 859 flow [2024-10-13 16:39:35,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 192 transitions, 848 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 16:39:35,419 INFO L231 Difference]: Finished difference. Result has 126 places, 124 transitions, 402 flow [2024-10-13 16:39:35,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=126, PETRI_TRANSITIONS=124} [2024-10-13 16:39:35,420 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 12 predicate places. [2024-10-13 16:39:35,420 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 124 transitions, 402 flow [2024-10-13 16:39:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:35,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:35,420 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:35,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 16:39:35,421 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-13 16:39:35,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:35,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1934081085, now seen corresponding path program 1 times [2024-10-13 16:39:35,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:35,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458266855] [2024-10-13 16:39:35,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:35,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:35,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:39:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:35,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:39:35,471 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-10-13 16:39:35,471 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-10-13 16:39:35,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-10-13 16:39:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-10-13 16:39:35,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-10-13 16:39:35,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-10-13 16:39:35,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-10-13 16:39:35,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 16:39:35,474 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:35,475 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 16:39:35,475 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 16:39:35,552 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 16:39:35,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 175 transitions, 377 flow [2024-10-13 16:39:35,581 INFO L124 PetriNetUnfolderBase]: 37/244 cut-off events. [2024-10-13 16:39:35,581 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-13 16:39:35,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 244 events. 37/244 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 970 event pairs, 1 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 166. Up to 12 conditions per place. [2024-10-13 16:39:35,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 175 transitions, 377 flow [2024-10-13 16:39:35,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 175 transitions, 377 flow [2024-10-13 16:39:35,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:39:35,587 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;@70c343c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:39:35,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-13 16:39:35,591 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:39:35,591 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-10-13 16:39:35,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:35,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:35,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 16:39:35,592 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-13 16:39:35,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:35,592 INFO L85 PathProgramCache]: Analyzing trace with hash -450733049, now seen corresponding path program 1 times [2024-10-13 16:39:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:35,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81326473] [2024-10-13 16:39:35,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:35,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:35,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:35,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81326473] [2024-10-13 16:39:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81326473] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:35,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:39:35,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052926521] [2024-10-13 16:39:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:35,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:39:35,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:35,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:39:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:39:35,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 175 [2024-10-13 16:39:35,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 175 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:35,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:35,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 175 [2024-10-13 16:39:35,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand