./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:59:12,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:59:13,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:59:13,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:59:13,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:59:13,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:59:13,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:59:13,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:59:13,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:59:13,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:59:13,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:59:13,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:59:13,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:59:13,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:59:13,052 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:59:13,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:59:13,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:59:13,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:59:13,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:59:13,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:59:13,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:59:13,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:59:13,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:59:13,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:59:13,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:59:13,057 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:59:13,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:59:13,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:59:13,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:59:13,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:59:13,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:59:13,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:59:13,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:59:13,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:59:13,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:59:13,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:59:13,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:59:13,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:59:13,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:59:13,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:59:13,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:59:13,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:59:13,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:59:13,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:59:13,062 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-10-11 23:59:13,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:59:13,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:59:13,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:59:13,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:59:13,393 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:59:13,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-11 23:59:14,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:59:15,115 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:59:15,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-11 23:59:15,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7591830b3/18076849cc0147c6840039fe38e733db/FLAG1578cbd80 [2024-10-11 23:59:15,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7591830b3/18076849cc0147c6840039fe38e733db [2024-10-11 23:59:15,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:59:15,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:59:15,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:59:15,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:59:15,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:59:15,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b10957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15, skipping insertion in model container [2024-10-11 23:59:15,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:59:15,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:59:15,748 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:59:15,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:59:15,877 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:59:15,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15 WrapperNode [2024-10-11 23:59:15,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:59:15,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:59:15,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:59:15,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:59:15,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,942 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 236 [2024-10-11 23:59:15,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:59:15,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:59:15,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:59:15,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:59:15,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,989 INFO L175 MemorySlicer]: Split 20 memory accesses to 4 slices as follows [2, 5, 11, 2]. 55 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0, 0]. The 6 writes are split as follows [0, 0, 5, 1]. [2024-10-11 23:59:15,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:15,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:59:16,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:59:16,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:59:16,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:59:16,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (1/1) ... [2024-10-11 23:59:16,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:59:16,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:16,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:59:16,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:59:16,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:59:16,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 23:59:16,132 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:59:16,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 23:59:16,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:59:16,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:59:16,134 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:59:16,283 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:59:16,286 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:59:16,627 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:59:16,627 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:59:16,829 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:59:16,831 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-11 23:59:16,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:59:16 BoogieIcfgContainer [2024-10-11 23:59:16,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:59:16,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:59:16,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:59:16,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:59:16,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:59:15" (1/3) ... [2024-10-11 23:59:16,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:59:16, skipping insertion in model container [2024-10-11 23:59:16,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:15" (2/3) ... [2024-10-11 23:59:16,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:59:16, skipping insertion in model container [2024-10-11 23:59:16,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:59:16" (3/3) ... [2024-10-11 23:59:16,842 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-10-11 23:59:16,861 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:59:16,861 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-11 23:59:16,861 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:59:16,915 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 23:59:16,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 115 transitions, 237 flow [2024-10-11 23:59:17,011 INFO L124 PetriNetUnfolderBase]: 35/162 cut-off events. [2024-10-11 23:59:17,033 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 23:59:17,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 35/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 639 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-10-11 23:59:17,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 115 transitions, 237 flow [2024-10-11 23:59:17,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 114 transitions, 235 flow [2024-10-11 23:59:17,071 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:59:17,078 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;@5ec722a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:59:17,078 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-11 23:59:17,096 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:59:17,096 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-11 23:59:17,096 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:59:17,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:17,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 23:59:17,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:17,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:17,103 INFO L85 PathProgramCache]: Analyzing trace with hash 654710, now seen corresponding path program 1 times [2024-10-11 23:59:17,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:17,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237068838] [2024-10-11 23:59:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:17,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:17,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237068838] [2024-10-11 23:59:17,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237068838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:17,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:17,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:17,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118708535] [2024-10-11 23:59:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:17,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:17,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:17,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:17,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-10-11 23:59:17,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:17,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:17,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:17,952 INFO L124 PetriNetUnfolderBase]: 486/1500 cut-off events. [2024-10-11 23:59:17,953 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 23:59:17,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1500 events. 486/1500 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10094 event pairs, 440 based on Foata normal form. 281/1596 useless extension candidates. Maximal degree in co-relation 2390. Up to 974 conditions per place. [2024-10-11 23:59:17,972 INFO L140 encePairwiseOnDemand]: 89/115 looper letters, 49 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-10-11 23:59:17,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 303 flow [2024-10-11 23:59:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:17,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-10-11 23:59:17,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456521739130434 [2024-10-11 23:59:17,988 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 235 flow. Second operand 4 states and 251 transitions. [2024-10-11 23:59:17,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 303 flow [2024-10-11 23:59:18,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:59:18,022 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 219 flow [2024-10-11 23:59:18,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-10-11 23:59:18,035 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-10-11 23:59:18,036 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 219 flow [2024-10-11 23:59:18,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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) [2024-10-11 23:59:18,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:18,041 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-11 23:59:18,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:59:18,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:18,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:18,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1969687330, now seen corresponding path program 1 times [2024-10-11 23:59:18,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:18,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193981868] [2024-10-11 23:59:18,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:18,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:18,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:18,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193981868] [2024-10-11 23:59:18,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193981868] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:18,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521986949] [2024-10-11 23:59:18,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:18,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:18,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:18,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:18,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 23:59:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:18,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:59:18,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:18,350 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:59:18,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521986949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:18,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:59:18,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-11 23:59:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269346894] [2024-10-11 23:59:18,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:18,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:59:18,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:18,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:59:18,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:59:18,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:18,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-10-11 23:59:18,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:18,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:18,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:18,686 INFO L124 PetriNetUnfolderBase]: 486/1499 cut-off events. [2024-10-11 23:59:18,686 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 23:59:18,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2491 conditions, 1499 events. 486/1499 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10095 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2473. Up to 969 conditions per place. [2024-10-11 23:59:18,698 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 45 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-10-11 23:59:18,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 317 flow [2024-10-11 23:59:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:59:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:59:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2024-10-11 23:59:18,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4579710144927536 [2024-10-11 23:59:18,702 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 219 flow. Second operand 6 states and 316 transitions. [2024-10-11 23:59:18,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 317 flow [2024-10-11 23:59:18,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:59:18,720 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 225 flow [2024-10-11 23:59:18,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-10-11 23:59:18,723 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-10-11 23:59:18,723 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 225 flow [2024-10-11 23:59:18,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-10-11 23:59:18,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:18,724 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-11 23:59:18,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 23:59:18,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:18,926 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:18,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:18,927 INFO L85 PathProgramCache]: Analyzing trace with hash -930764397, now seen corresponding path program 1 times [2024-10-11 23:59:18,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:18,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514019412] [2024-10-11 23:59:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:18,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:59:18,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:18,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514019412] [2024-10-11 23:59:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514019412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:18,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:18,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:18,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757474190] [2024-10-11 23:59:18,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:18,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:18,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:18,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:19,000 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:19,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-10-11 23:59:19,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:19,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:19,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:19,210 INFO L124 PetriNetUnfolderBase]: 486/1498 cut-off events. [2024-10-11 23:59:19,211 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 23:59:19,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1498 events. 486/1498 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10105 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2469. Up to 972 conditions per place. [2024-10-11 23:59:19,223 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 46 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-10-11 23:59:19,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 321 flow [2024-10-11 23:59:19,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:19,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:19,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-10-11 23:59:19,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5246376811594203 [2024-10-11 23:59:19,226 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 225 flow. Second operand 3 states and 181 transitions. [2024-10-11 23:59:19,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 321 flow [2024-10-11 23:59:19,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 299 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-11 23:59:19,230 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 207 flow [2024-10-11 23:59:19,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-10-11 23:59:19,234 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2024-10-11 23:59:19,234 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 207 flow [2024-10-11 23:59:19,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-10-11 23:59:19,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:19,235 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:19,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:59:19,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:19,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1113109505, now seen corresponding path program 1 times [2024-10-11 23:59:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:19,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416766539] [2024-10-11 23:59:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416766539] [2024-10-11 23:59:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416766539] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:19,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605105760] [2024-10-11 23:59:19,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:19,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:19,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:19,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 23:59:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:19,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 23:59:19,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:19,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:19,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605105760] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:19,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:19,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-11 23:59:19,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802238600] [2024-10-11 23:59:19,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:19,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 23:59:19,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 23:59:19,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:59:19,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:19,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 207 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2024-10-11 23:59:19,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:19,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:19,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:19,859 INFO L124 PetriNetUnfolderBase]: 486/1502 cut-off events. [2024-10-11 23:59:19,860 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-11 23:59:19,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 1502 events. 486/1502 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10127 event pairs, 440 based on Foata normal form. 2/1321 useless extension candidates. Maximal degree in co-relation 2462. Up to 970 conditions per place. [2024-10-11 23:59:19,868 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2024-10-11 23:59:19,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 328 flow [2024-10-11 23:59:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:59:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:59:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 363 transitions. [2024-10-11 23:59:19,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4509316770186335 [2024-10-11 23:59:19,870 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 207 flow. Second operand 7 states and 363 transitions. [2024-10-11 23:59:19,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 328 flow [2024-10-11 23:59:19,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:19,875 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 233 flow [2024-10-11 23:59:19,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=233, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2024-10-11 23:59:19,876 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-11 23:59:19,877 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 233 flow [2024-10-11 23:59:19,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 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) [2024-10-11 23:59:19,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:19,878 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:19,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 23:59:20,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:20,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash -711593217, now seen corresponding path program 2 times [2024-10-11 23:59:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:20,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681620025] [2024-10-11 23:59:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:20,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:59:20,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:20,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681620025] [2024-10-11 23:59:20,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681620025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:20,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:20,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:20,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276080728] [2024-10-11 23:59:20,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:20,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:20,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:20,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 115 [2024-10-11 23:59:20,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2024-10-11 23:59:20,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:20,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 115 [2024-10-11 23:59:20,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:20,446 INFO L124 PetriNetUnfolderBase]: 483/1378 cut-off events. [2024-10-11 23:59:20,447 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 23:59:20,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1378 events. 483/1378 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9164 event pairs, 0 based on Foata normal form. 21/1266 useless extension candidates. Maximal degree in co-relation 2339. Up to 912 conditions per place. [2024-10-11 23:59:20,454 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 92 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2024-10-11 23:59:20,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 501 flow [2024-10-11 23:59:20,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:20,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:20,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-10-11 23:59:20,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5760869565217391 [2024-10-11 23:59:20,456 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 233 flow. Second operand 4 states and 265 transitions. [2024-10-11 23:59:20,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 501 flow [2024-10-11 23:59:20,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 497 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:20,460 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 235 flow [2024-10-11 23:59:20,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2024-10-11 23:59:20,461 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-11 23:59:20,462 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 235 flow [2024-10-11 23:59:20,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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) [2024-10-11 23:59:20,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:20,462 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:20,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:59:20,463 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:20,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:20,463 INFO L85 PathProgramCache]: Analyzing trace with hash -940060096, now seen corresponding path program 1 times [2024-10-11 23:59:20,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:20,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22389746] [2024-10-11 23:59:20,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:59:20,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:20,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22389746] [2024-10-11 23:59:20,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22389746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:20,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:20,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749713823] [2024-10-11 23:59:20,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:20,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:20,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:20,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:20,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:20,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:20,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-10-11 23:59:20,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:20,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:20,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:20,824 INFO L124 PetriNetUnfolderBase]: 506/1511 cut-off events. [2024-10-11 23:59:20,825 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-11 23:59:20,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1511 events. 506/1511 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10147 event pairs, 378 based on Foata normal form. 23/1365 useless extension candidates. Maximal degree in co-relation 2542. Up to 875 conditions per place. [2024-10-11 23:59:20,834 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 95 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-10-11 23:59:20,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 138 transitions, 525 flow [2024-10-11 23:59:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:20,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-10-11 23:59:20,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-11 23:59:20,837 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 235 flow. Second operand 4 states and 270 transitions. [2024-10-11 23:59:20,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 138 transitions, 525 flow [2024-10-11 23:59:20,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 138 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:59:20,842 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 233 flow [2024-10-11 23:59:20,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-10-11 23:59:20,843 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-10-11 23:59:20,843 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 233 flow [2024-10-11 23:59:20,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-10-11 23:59:20,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:20,844 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:20,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:59:20,844 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:20,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:20,845 INFO L85 PathProgramCache]: Analyzing trace with hash 885748387, now seen corresponding path program 1 times [2024-10-11 23:59:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:20,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402496085] [2024-10-11 23:59:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:20,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:20,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:20,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402496085] [2024-10-11 23:59:20,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402496085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:20,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207946234] [2024-10-11 23:59:20,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:20,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:20,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:20,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:20,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 23:59:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:21,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 23:59:21,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:21,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:21,200 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:21,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207946234] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:21,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:21,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-11 23:59:21,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210659865] [2024-10-11 23:59:21,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:21,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 23:59:21,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:21,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 23:59:21,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 23:59:21,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:21,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 233 flow. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 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) [2024-10-11 23:59:21,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:21,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:21,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:21,559 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-10-11 23:59:21,559 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-10-11 23:59:21,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2578 conditions, 1486 events. 485/1486 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9841 event pairs, 440 based on Foata normal form. 4/1340 useless extension candidates. Maximal degree in co-relation 2503. Up to 946 conditions per place. [2024-10-11 23:59:21,569 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2024-10-11 23:59:21,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 102 transitions, 403 flow [2024-10-11 23:59:21,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 23:59:21,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 23:59:21,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 725 transitions. [2024-10-11 23:59:21,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375 [2024-10-11 23:59:21,573 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 233 flow. Second operand 15 states and 725 transitions. [2024-10-11 23:59:21,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 102 transitions, 403 flow [2024-10-11 23:59:21,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 102 transitions, 397 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:59:21,576 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 324 flow [2024-10-11 23:59:21,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2024-10-11 23:59:21,577 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2024-10-11 23:59:21,577 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 324 flow [2024-10-11 23:59:21,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 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) [2024-10-11 23:59:21,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:21,579 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:21,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 23:59:21,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:21,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:21,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:21,781 INFO L85 PathProgramCache]: Analyzing trace with hash -2022234973, now seen corresponding path program 2 times [2024-10-11 23:59:21,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:21,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610371991] [2024-10-11 23:59:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:22,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:22,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610371991] [2024-10-11 23:59:22,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610371991] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:22,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755217462] [2024-10-11 23:59:22,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:59:22,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:22,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:22,090 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:22,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 23:59:22,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 23:59:22,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:59:22,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 23:59:22,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:22,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 23:59:22,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755217462] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:22,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:22,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-11 23:59:22,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662267591] [2024-10-11 23:59:22,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:22,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 23:59:22,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:22,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 23:59:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 23:59:22,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-11 23:59:22,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 324 flow. Second operand has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 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) [2024-10-11 23:59:22,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:22,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-11 23:59:22,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:22,942 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-10-11 23:59:22,943 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-10-11 23:59:22,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2565 conditions, 1486 events. 485/1486 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9748 event pairs, 440 based on Foata normal form. 3/1343 useless extension candidates. Maximal degree in co-relation 2430. Up to 947 conditions per place. [2024-10-11 23:59:22,949 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 21 changer transitions 0/108 dead transitions. [2024-10-11 23:59:22,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 108 transitions, 512 flow [2024-10-11 23:59:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 23:59:22,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 23:59:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 994 transitions. [2024-10-11 23:59:22,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4115942028985507 [2024-10-11 23:59:22,953 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 324 flow. Second operand 21 states and 994 transitions. [2024-10-11 23:59:22,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 108 transitions, 512 flow [2024-10-11 23:59:22,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 108 transitions, 502 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 23:59:22,956 INFO L231 Difference]: Finished difference. Result has 136 places, 108 transitions, 425 flow [2024-10-11 23:59:22,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=425, PETRI_PLACES=136, PETRI_TRANSITIONS=108} [2024-10-11 23:59:22,957 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2024-10-11 23:59:22,958 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 108 transitions, 425 flow [2024-10-11 23:59:22,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 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) [2024-10-11 23:59:22,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:22,958 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:22,977 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 23:59:23,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 23:59:23,159 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-11 23:59:23,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:23,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2024115397, now seen corresponding path program 3 times [2024-10-11 23:59:23,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:23,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544008173] [2024-10-11 23:59:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:23,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:59:23,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:59:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:59:23,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:59:23,226 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:59:23,227 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-11 23:59:23,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-10-11 23:59:23,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-10-11 23:59:23,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-10-11 23:59:23,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-10-11 23:59:23,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-10-11 23:59:23,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-10-11 23:59:23,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-10-11 23:59:23,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-10-11 23:59:23,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-10-11 23:59:23,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-10-11 23:59:23,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-10-11 23:59:23,232 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-10-11 23:59:23,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-10-11 23:59:23,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-10-11 23:59:23,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-10-11 23:59:23,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-10-11 23:59:23,237 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-10-11 23:59:23,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 23:59:23,237 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2024-10-11 23:59:23,240 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 23:59:23,240 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 23:59:23,275 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 23:59:23,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 165 transitions, 346 flow [2024-10-11 23:59:23,299 INFO L124 PetriNetUnfolderBase]: 59/278 cut-off events. [2024-10-11 23:59:23,299 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 23:59:23,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 59/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1290 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2024-10-11 23:59:23,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 165 transitions, 346 flow [2024-10-11 23:59:23,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 165 transitions, 346 flow [2024-10-11 23:59:23,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:59:23,306 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;@5ec722a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:59:23,307 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-11 23:59:23,308 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:59:23,308 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-11 23:59:23,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:59:23,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:23,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-11 23:59:23,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:23,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash 818555, now seen corresponding path program 1 times [2024-10-11 23:59:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005061925] [2024-10-11 23:59:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:23,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:23,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:23,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005061925] [2024-10-11 23:59:23,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005061925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:23,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:23,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:23,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171510961] [2024-10-11 23:59:23,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:23,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:23,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:23,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:23,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:23,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:23,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2024-10-11 23:59:23,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:23,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:23,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:27,603 INFO L124 PetriNetUnfolderBase]: 20921/44082 cut-off events. [2024-10-11 23:59:27,603 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-10-11 23:59:27,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75381 conditions, 44082 events. 20921/44082 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449962 event pairs, 19440 based on Foata normal form. 9270/48624 useless extension candidates. Maximal degree in co-relation 59170. Up to 31185 conditions per place. [2024-10-11 23:59:27,864 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 72 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-10-11 23:59:27,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 440 flow [2024-10-11 23:59:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2024-10-11 23:59:27,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-10-11 23:59:27,866 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 346 flow. Second operand 4 states and 356 transitions. [2024-10-11 23:59:27,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 440 flow [2024-10-11 23:59:27,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:59:27,870 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 310 flow [2024-10-11 23:59:27,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-10-11 23:59:27,871 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-10-11 23:59:27,871 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 310 flow [2024-10-11 23:59:27,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2024-10-11 23:59:27,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:27,872 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-11 23:59:27,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 23:59:27,872 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:27,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:27,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1383384386, now seen corresponding path program 1 times [2024-10-11 23:59:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:27,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943498516] [2024-10-11 23:59:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943498516] [2024-10-11 23:59:27,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943498516] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:27,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462108862] [2024-10-11 23:59:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:27,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:27,920 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:27,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 23:59:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:27,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:59:27,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:28,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:59:28,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462108862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:28,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:59:28,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-11 23:59:28,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236193849] [2024-10-11 23:59:28,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:28,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:59:28,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:28,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:59:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:59:28,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:28,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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) [2024-10-11 23:59:28,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:28,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:28,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:31,152 INFO L124 PetriNetUnfolderBase]: 20921/44081 cut-off events. [2024-10-11 23:59:31,152 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-11 23:59:31,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75391 conditions, 44081 events. 20921/44081 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449849 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75372. Up to 31180 conditions per place. [2024-10-11 23:59:31,641 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-10-11 23:59:31,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 454 flow [2024-10-11 23:59:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:59:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:59:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2024-10-11 23:59:31,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45151515151515154 [2024-10-11 23:59:31,654 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 310 flow. Second operand 6 states and 447 transitions. [2024-10-11 23:59:31,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 454 flow [2024-10-11 23:59:31,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 136 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:59:31,658 INFO L231 Difference]: Finished difference. Result has 142 places, 136 transitions, 316 flow [2024-10-11 23:59:31,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=142, PETRI_TRANSITIONS=136} [2024-10-11 23:59:31,659 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2024-10-11 23:59:31,659 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 136 transitions, 316 flow [2024-10-11 23:59:31,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 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) [2024-10-11 23:59:31,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:31,660 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-11 23:59:31,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 23:59:31,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 23:59:31,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:31,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:31,864 INFO L85 PathProgramCache]: Analyzing trace with hash 64757848, now seen corresponding path program 1 times [2024-10-11 23:59:31,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:31,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259851810] [2024-10-11 23:59:31,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:31,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:59:31,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:31,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259851810] [2024-10-11 23:59:31,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259851810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:31,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:31,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:31,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713643013] [2024-10-11 23:59:31,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:31,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:31,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:31,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:31,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 136 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-10-11 23:59:31,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:31,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:31,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:34,941 INFO L124 PetriNetUnfolderBase]: 20921/44080 cut-off events. [2024-10-11 23:59:34,942 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-10-11 23:59:35,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75393 conditions, 44080 events. 20921/44080 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449976 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75368. Up to 31183 conditions per place. [2024-10-11 23:59:35,208 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-10-11 23:59:35,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 135 transitions, 458 flow [2024-10-11 23:59:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-10-11 23:59:35,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2024-10-11 23:59:35,210 INFO L175 Difference]: Start difference. First operand has 142 places, 136 transitions, 316 flow. Second operand 3 states and 258 transitions. [2024-10-11 23:59:35,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 135 transitions, 458 flow [2024-10-11 23:59:35,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 436 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-11 23:59:35,214 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 298 flow [2024-10-11 23:59:35,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-10-11 23:59:35,215 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 3 predicate places. [2024-10-11 23:59:35,215 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 298 flow [2024-10-11 23:59:35,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-10-11 23:59:35,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:35,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:35,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 23:59:35,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:35,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:35,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2101079636, now seen corresponding path program 1 times [2024-10-11 23:59:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:35,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957999017] [2024-10-11 23:59:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:35,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:35,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:35,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:35,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957999017] [2024-10-11 23:59:35,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957999017] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:35,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849803185] [2024-10-11 23:59:35,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:35,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:35,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:35,270 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:35,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 23:59:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:35,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 23:59:35,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:35,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:59:35,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849803185] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:35,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:35,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-11 23:59:35,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372853489] [2024-10-11 23:59:35,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:35,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 23:59:35,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 23:59:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:59:35,425 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:35,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 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) [2024-10-11 23:59:35,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:35,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:35,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:38,451 INFO L124 PetriNetUnfolderBase]: 20921/44084 cut-off events. [2024-10-11 23:59:38,452 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-11 23:59:38,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75396 conditions, 44084 events. 20921/44084 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449980 event pairs, 19440 based on Foata normal form. 2/39360 useless extension candidates. Maximal degree in co-relation 75361. Up to 31181 conditions per place. [2024-10-11 23:59:38,674 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 69 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2024-10-11 23:59:38,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 465 flow [2024-10-11 23:59:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:59:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:59:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 512 transitions. [2024-10-11 23:59:38,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4432900432900433 [2024-10-11 23:59:38,677 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 298 flow. Second operand 7 states and 512 transitions. [2024-10-11 23:59:38,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 465 flow [2024-10-11 23:59:38,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:38,681 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 324 flow [2024-10-11 23:59:38,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=324, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-10-11 23:59:38,682 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2024-10-11 23:59:38,682 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 324 flow [2024-10-11 23:59:38,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 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) [2024-10-11 23:59:38,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:38,683 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:38,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 23:59:38,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 23:59:38,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:38,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:38,885 INFO L85 PathProgramCache]: Analyzing trace with hash 775482228, now seen corresponding path program 2 times [2024-10-11 23:59:38,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:38,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457810541] [2024-10-11 23:59:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:38,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:38,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:59:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457810541] [2024-10-11 23:59:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457810541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:38,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:38,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436640884] [2024-10-11 23:59:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:38,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:38,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:38,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:38,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:38,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165 [2024-10-11 23:59:38,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2024-10-11 23:59:38,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:38,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165 [2024-10-11 23:59:38,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:42,217 INFO L124 PetriNetUnfolderBase]: 23016/46825 cut-off events. [2024-10-11 23:59:42,218 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-10-11 23:59:42,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81493 conditions, 46825 events. 23016/46825 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 469792 event pairs, 10580 based on Foata normal form. 21/41770 useless extension candidates. Maximal degree in co-relation 81453. Up to 34473 conditions per place. [2024-10-11 23:59:42,427 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 119 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-10-11 23:59:42,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 654 flow [2024-10-11 23:59:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2024-10-11 23:59:42,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2024-10-11 23:59:42,430 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 324 flow. Second operand 4 states and 364 transitions. [2024-10-11 23:59:42,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 654 flow [2024-10-11 23:59:42,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 181 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:42,434 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 344 flow [2024-10-11 23:59:42,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-10-11 23:59:42,435 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-10-11 23:59:42,436 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 344 flow [2024-10-11 23:59:42,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 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) [2024-10-11 23:59:42,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:42,436 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:42,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 23:59:42,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:42,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2084661739, now seen corresponding path program 1 times [2024-10-11 23:59:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:42,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704437104] [2024-10-11 23:59:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:59:42,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:42,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704437104] [2024-10-11 23:59:42,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704437104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:42,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:42,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249303231] [2024-10-11 23:59:42,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:42,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:42,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:42,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:42,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:42,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-10-11 23:59:42,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:42,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:42,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:45,582 INFO L124 PetriNetUnfolderBase]: 21407/40857 cut-off events. [2024-10-11 23:59:45,583 INFO L125 PetriNetUnfolderBase]: For 1134/2063 co-relation queries the response was YES. [2024-10-11 23:59:45,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 40857 events. 21407/40857 cut-off events. For 1134/2063 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 395656 event pairs, 440 based on Foata normal form. 526/37645 useless extension candidates. Maximal degree in co-relation 74076. Up to 28198 conditions per place. [2024-10-11 23:59:45,777 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 167 selfloop transitions, 3 changer transitions 0/231 dead transitions. [2024-10-11 23:59:45,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 231 transitions, 896 flow [2024-10-11 23:59:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:45,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 411 transitions. [2024-10-11 23:59:45,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-10-11 23:59:45,779 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 344 flow. Second operand 4 states and 411 transitions. [2024-10-11 23:59:45,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 231 transitions, 896 flow [2024-10-11 23:59:45,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 231 transitions, 892 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:59:45,783 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 346 flow [2024-10-11 23:59:45,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2024-10-11 23:59:45,784 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 13 predicate places. [2024-10-11 23:59:45,784 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 346 flow [2024-10-11 23:59:45,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-10-11 23:59:45,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:45,785 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:45,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 23:59:45,785 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:45,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash -200003581, now seen corresponding path program 1 times [2024-10-11 23:59:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:45,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115722086] [2024-10-11 23:59:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:45,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:59:45,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:45,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115722086] [2024-10-11 23:59:45,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115722086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:45,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:45,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:45,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036194156] [2024-10-11 23:59:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:45,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:45,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:45,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:45,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:45,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:45,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-10-11 23:59:45,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:45,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:45,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:49,352 INFO L124 PetriNetUnfolderBase]: 20844/43253 cut-off events. [2024-10-11 23:59:49,353 INFO L125 PetriNetUnfolderBase]: For 2073/2949 co-relation queries the response was YES. [2024-10-11 23:59:49,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77022 conditions, 43253 events. 20844/43253 cut-off events. For 2073/2949 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 437036 event pairs, 15754 based on Foata normal form. 525/39532 useless extension candidates. Maximal degree in co-relation 76981. Up to 26761 conditions per place. [2024-10-11 23:59:49,557 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 166 selfloop transitions, 3 changer transitions 0/230 dead transitions. [2024-10-11 23:59:49,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 230 transitions, 894 flow [2024-10-11 23:59:49,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:49,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2024-10-11 23:59:49,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-10-11 23:59:49,558 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 346 flow. Second operand 4 states and 410 transitions. [2024-10-11 23:59:49,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 230 transitions, 894 flow [2024-10-11 23:59:49,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 230 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:59:49,567 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 344 flow [2024-10-11 23:59:49,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-10-11 23:59:49,568 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-10-11 23:59:49,568 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 344 flow [2024-10-11 23:59:49,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 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) [2024-10-11 23:59:49,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:49,569 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:49,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 23:59:49,569 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:49,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -281275738, now seen corresponding path program 1 times [2024-10-11 23:59:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93660639] [2024-10-11 23:59:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:49,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:49,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93660639] [2024-10-11 23:59:49,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93660639] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:49,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788459525] [2024-10-11 23:59:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:49,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:49,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:49,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:49,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 23:59:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:49,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 23:59:49,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:49,816 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:49,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:49,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788459525] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:49,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:49,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-11 23:59:49,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977363089] [2024-10-11 23:59:49,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:49,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 23:59:49,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:49,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 23:59:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 23:59:49,923 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:49,924 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 344 flow. Second operand has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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) [2024-10-11 23:59:49,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:49,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:49,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:53,684 INFO L124 PetriNetUnfolderBase]: 20919/44308 cut-off events. [2024-10-11 23:59:53,684 INFO L125 PetriNetUnfolderBase]: For 2589/3459 co-relation queries the response was YES. [2024-10-11 23:59:53,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78137 conditions, 44308 events. 20919/44308 cut-off events. For 2589/3459 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453349 event pairs, 19440 based on Foata normal form. 22/39995 useless extension candidates. Maximal degree in co-relation 78060. Up to 31203 conditions per place. [2024-10-11 23:59:53,926 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 15 changer transitions 0/146 dead transitions. [2024-10-11 23:59:53,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 146 transitions, 562 flow [2024-10-11 23:59:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 23:59:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-11 23:59:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1018 transitions. [2024-10-11 23:59:53,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4113131313131313 [2024-10-11 23:59:53,930 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 344 flow. Second operand 15 states and 1018 transitions. [2024-10-11 23:59:53,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 146 transitions, 562 flow [2024-10-11 23:59:53,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:59:53,935 INFO L231 Difference]: Finished difference. Result has 161 places, 146 transitions, 435 flow [2024-10-11 23:59:53,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=435, PETRI_PLACES=161, PETRI_TRANSITIONS=146} [2024-10-11 23:59:53,936 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 27 predicate places. [2024-10-11 23:59:53,936 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 146 transitions, 435 flow [2024-10-11 23:59:53,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 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) [2024-10-11 23:59:53,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:53,937 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:53,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 23:59:54,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:54,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:54,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash 882673766, now seen corresponding path program 2 times [2024-10-11 23:59:54,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:54,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972420966] [2024-10-11 23:59:54,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:54,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:54,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972420966] [2024-10-11 23:59:54,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972420966] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:54,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574464975] [2024-10-11 23:59:54,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 23:59:54,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:54,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:54,717 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:54,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 23:59:54,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 23:59:54,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:59:54,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 23:59:54,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:54,875 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:54,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:59:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 23:59:55,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574464975] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:59:55,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:59:55,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-11 23:59:55,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200668560] [2024-10-11 23:59:55,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:59:55,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 23:59:55,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:55,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 23:59:55,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-11 23:59:55,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:55,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 146 transitions, 435 flow. Second operand has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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) [2024-10-11 23:59:55,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:55,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:55,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:58,933 INFO L124 PetriNetUnfolderBase]: 20919/44317 cut-off events. [2024-10-11 23:59:58,934 INFO L125 PetriNetUnfolderBase]: For 1163/2033 co-relation queries the response was YES. [2024-10-11 23:59:59,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76680 conditions, 44317 events. 20919/44317 cut-off events. For 1163/2033 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453270 event pairs, 19440 based on Foata normal form. 21/40003 useless extension candidates. Maximal degree in co-relation 76543. Up to 31203 conditions per place. [2024-10-11 23:59:59,207 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 21 changer transitions 0/152 dead transitions. [2024-10-11 23:59:59,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 152 transitions, 671 flow [2024-10-11 23:59:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 23:59:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 23:59:59,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2024-10-11 23:59:59,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4025974025974026 [2024-10-11 23:59:59,212 INFO L175 Difference]: Start difference. First operand has 161 places, 146 transitions, 435 flow. Second operand 21 states and 1395 transitions. [2024-10-11 23:59:59,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 152 transitions, 671 flow [2024-10-11 23:59:59,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 661 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 23:59:59,218 INFO L231 Difference]: Finished difference. Result has 180 places, 152 transitions, 536 flow [2024-10-11 23:59:59,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=536, PETRI_PLACES=180, PETRI_TRANSITIONS=152} [2024-10-11 23:59:59,218 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 46 predicate places. [2024-10-11 23:59:59,219 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 152 transitions, 536 flow [2024-10-11 23:59:59,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 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) [2024-10-11 23:59:59,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:59,220 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:59,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 23:59:59,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 23:59:59,424 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-11 23:59:59,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:59,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1030794019, now seen corresponding path program 3 times [2024-10-11 23:59:59,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:59,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031772696] [2024-10-11 23:59:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-11 23:59:59,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:59,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031772696] [2024-10-11 23:59:59,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031772696] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:59,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194868764] [2024-10-11 23:59:59,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 23:59:59,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:59,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:59,550 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:59:59,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 23:59:59,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 23:59:59,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 23:59:59,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 23:59:59,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-11 23:59:59,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:59:59,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194868764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:59,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:59:59,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-11 23:59:59,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074589051] [2024-10-11 23:59:59,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:59,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:59:59,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:59:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:59:59,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 165 [2024-10-11 23:59:59,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 152 transitions, 536 flow. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:59:59,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:59,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 165 [2024-10-11 23:59:59,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand