./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:48:47,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:48:47,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:48:47,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:48:47,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:48:47,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:48:47,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:48:47,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:48:47,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:48:47,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:48:47,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:48:47,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:48:47,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:48:47,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:48:47,551 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:48:47,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:48:47,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:48:47,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:48:47,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:48:47,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:48:47,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:48:47,557 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:48:47,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:48:47,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:48:47,558 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:48:47,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:48:47,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:48:47,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:48:47,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:48:47,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:48:47,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:48:47,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:48:47,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:48:47,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:48:47,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:48:47,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:48:47,561 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:48:47,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:48:47,562 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde6fe221f69c3fccb0f7c90e011f0b13ab5ca582ddcd328a459cbb512a8fd7f [2024-11-17 07:48:47,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:48:47,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:48:47,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:48:47,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:48:47,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:48:47,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-17 07:48:49,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:48:49,218 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:48:49,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_71-funloop_racing.i [2024-11-17 07:48:49,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e23616b/e8fca2f563f04743bbfbdfe9cf3f00d4/FLAGd8525d496 [2024-11-17 07:48:49,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2e23616b/e8fca2f563f04743bbfbdfe9cf3f00d4 [2024-11-17 07:48:49,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:48:49,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:48:49,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:48:49,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:48:49,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:48:49,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73983faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49, skipping insertion in model container [2024-11-17 07:48:49,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:48:49,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:48:49,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:48:49,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:48:49,787 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:48:49,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49 WrapperNode [2024-11-17 07:48:49,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:48:49,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:48:49,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:48:49,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:48:49,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,833 INFO L138 Inliner]: procedures = 272, calls = 108, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 346 [2024-11-17 07:48:49,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:48:49,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:48:49,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:48:49,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:48:49,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,859 INFO L175 MemorySlicer]: Split 84 memory accesses to 4 slices as follows [2, 5, 2, 75]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 7 writes are split as follows [0, 0, 1, 6]. [2024-11-17 07:48:49,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,867 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:48:49,877 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:48:49,877 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:48:49,877 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:48:49,878 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (1/1) ... [2024-11-17 07:48:49,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:48:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:49,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:48:49,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:48:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:48:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:48:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:48:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:48:49,944 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:48:50,050 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:48:50,051 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:48:50,347 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:48:50,348 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:48:50,415 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:48:50,416 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:48:50,720 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:48:50,720 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:48:50,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:48:50 BoogieIcfgContainer [2024-11-17 07:48:50,722 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:48:50,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:48:50,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:48:50,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:48:50,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:48:49" (1/3) ... [2024-11-17 07:48:50,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a3b884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:48:50, skipping insertion in model container [2024-11-17 07:48:50,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:48:49" (2/3) ... [2024-11-17 07:48:50,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a3b884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:48:50, skipping insertion in model container [2024-11-17 07:48:50,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:48:50" (3/3) ... [2024-11-17 07:48:50,730 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_71-funloop_racing.i [2024-11-17 07:48:50,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:48:50,746 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-17 07:48:50,746 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:48:50,797 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:48:50,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 186 transitions, 379 flow [2024-11-17 07:48:50,884 INFO L124 PetriNetUnfolderBase]: 68/293 cut-off events. [2024-11-17 07:48:50,884 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:48:50,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 293 events. 68/293 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1420 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 168. Up to 8 conditions per place. [2024-11-17 07:48:50,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 186 transitions, 379 flow [2024-11-17 07:48:50,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 185 transitions, 377 flow [2024-11-17 07:48:50,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:48:50,906 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;@5d5ef856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:48:50,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-17 07:48:50,910 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:48:50,910 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:48:50,910 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:48:50,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:50,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:48:50,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:50,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 26709773, now seen corresponding path program 1 times [2024-11-17 07:48:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:50,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755217490] [2024-11-17 07:48:50,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:51,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:51,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755217490] [2024-11-17 07:48:51,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755217490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:51,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:51,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:48:51,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976024864] [2024-11-17 07:48:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:51,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:48:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:48:51,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:48:51,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2024-11-17 07:48:51,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 185 transitions, 377 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:51,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:51,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2024-11-17 07:48:51,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:51,709 INFO L124 PetriNetUnfolderBase]: 894/3002 cut-off events. [2024-11-17 07:48:51,709 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:48:51,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4694 conditions, 3002 events. 894/3002 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 25514 event pairs, 740 based on Foata normal form. 852/3542 useless extension candidates. Maximal degree in co-relation 4536. Up to 1685 conditions per place. [2024-11-17 07:48:51,729 INFO L140 encePairwiseOnDemand]: 145/186 looper letters, 67 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2024-11-17 07:48:51,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 152 transitions, 451 flow [2024-11-17 07:48:51,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:48:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:48:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2024-11-17 07:48:51,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873655913978495 [2024-11-17 07:48:51,746 INFO L175 Difference]: Start difference. First operand has 147 places, 185 transitions, 377 flow. Second operand 4 states and 437 transitions. [2024-11-17 07:48:51,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 152 transitions, 451 flow [2024-11-17 07:48:51,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 152 transitions, 451 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:48:51,753 INFO L231 Difference]: Finished difference. Result has 152 places, 152 transitions, 331 flow [2024-11-17 07:48:51,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=152, PETRI_TRANSITIONS=152} [2024-11-17 07:48:51,760 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 5 predicate places. [2024-11-17 07:48:51,760 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 152 transitions, 331 flow [2024-11-17 07:48:51,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:51,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:51,761 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:48:51,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:48:51,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:51,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:51,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1061092600, now seen corresponding path program 1 times [2024-11-17 07:48:51,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:51,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419576542] [2024-11-17 07:48:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:51,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:51,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:51,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419576542] [2024-11-17 07:48:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419576542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:48:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970917402] [2024-11-17 07:48:51,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:51,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:51,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:48:51,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:48:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:51,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:48:51,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:48:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:52,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:48:52,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970917402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:52,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:48:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:48:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052191838] [2024-11-17 07:48:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:52,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:48:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:48:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:48:52,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2024-11-17 07:48:52,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 152 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:52,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:52,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2024-11-17 07:48:52,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:52,447 INFO L124 PetriNetUnfolderBase]: 894/3001 cut-off events. [2024-11-17 07:48:52,448 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-17 07:48:52,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 3001 events. 894/3001 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 25474 event pairs, 740 based on Foata normal form. 1/2690 useless extension candidates. Maximal degree in co-relation 4685. Up to 1679 conditions per place. [2024-11-17 07:48:52,463 INFO L140 encePairwiseOnDemand]: 181/186 looper letters, 63 selfloop transitions, 6 changer transitions 0/151 dead transitions. [2024-11-17 07:48:52,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 465 flow [2024-11-17 07:48:52,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:48:52,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:48:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 562 transitions. [2024-11-17 07:48:52,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.503584229390681 [2024-11-17 07:48:52,466 INFO L175 Difference]: Start difference. First operand has 152 places, 152 transitions, 331 flow. Second operand 6 states and 562 transitions. [2024-11-17 07:48:52,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 465 flow [2024-11-17 07:48:52,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 151 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:48:52,473 INFO L231 Difference]: Finished difference. Result has 155 places, 151 transitions, 337 flow [2024-11-17 07:48:52,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=337, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2024-11-17 07:48:52,475 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-11-17 07:48:52,475 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 337 flow [2024-11-17 07:48:52,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:52,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:52,476 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:48:52,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:48:52,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:52,678 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:52,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:52,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1465867054, now seen corresponding path program 1 times [2024-11-17 07:48:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:52,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497070339] [2024-11-17 07:48:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:48:52,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:52,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497070339] [2024-11-17 07:48:52,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497070339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:52,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:52,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:48:52,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067089494] [2024-11-17 07:48:52,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:52,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:48:52,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:52,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:48:52,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:48:52,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 186 [2024-11-17 07:48:52,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:52,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:52,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 186 [2024-11-17 07:48:52,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:52,994 INFO L124 PetriNetUnfolderBase]: 894/3000 cut-off events. [2024-11-17 07:48:52,995 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-17 07:48:52,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4705 conditions, 3000 events. 894/3000 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 25496 event pairs, 740 based on Foata normal form. 1/2691 useless extension candidates. Maximal degree in co-relation 4680. Up to 1682 conditions per place. [2024-11-17 07:48:53,005 INFO L140 encePairwiseOnDemand]: 183/186 looper letters, 63 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-11-17 07:48:53,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 467 flow [2024-11-17 07:48:53,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:48:53,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:48:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2024-11-17 07:48:53,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5645161290322581 [2024-11-17 07:48:53,008 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 337 flow. Second operand 3 states and 315 transitions. [2024-11-17 07:48:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 467 flow [2024-11-17 07:48:53,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 150 transitions, 457 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:48:53,014 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 331 flow [2024-11-17 07:48:53,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-11-17 07:48:53,015 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 5 predicate places. [2024-11-17 07:48:53,015 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 331 flow [2024-11-17 07:48:53,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:53,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:53,016 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:53,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:48:53,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:53,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1036892925, now seen corresponding path program 1 times [2024-11-17 07:48:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:53,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647102918] [2024-11-17 07:48:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:53,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:53,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647102918] [2024-11-17 07:48:53,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647102918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:48:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431735655] [2024-11-17 07:48:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:53,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:48:53,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:48:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:53,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:48:53,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:48:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:53,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:48:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:53,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431735655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:48:53,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:48:53,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:48:53,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357185516] [2024-11-17 07:48:53,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:48:53,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:48:53,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:53,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:48:53,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:48:53,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2024-11-17 07:48:53,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 331 flow. Second operand has 10 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:53,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:53,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2024-11-17 07:48:53,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:53,572 INFO L124 PetriNetUnfolderBase]: 894/3006 cut-off events. [2024-11-17 07:48:53,572 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-17 07:48:53,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4721 conditions, 3006 events. 894/3006 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 25467 event pairs, 740 based on Foata normal form. 2/2698 useless extension candidates. Maximal degree in co-relation 4675. Up to 1681 conditions per place. [2024-11-17 07:48:53,582 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 64 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2024-11-17 07:48:53,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 153 transitions, 495 flow [2024-11-17 07:48:53,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:48:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:48:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2024-11-17 07:48:53,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4969278033794163 [2024-11-17 07:48:53,584 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 331 flow. Second operand 7 states and 647 transitions. [2024-11-17 07:48:53,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 153 transitions, 495 flow [2024-11-17 07:48:53,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 153 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:48:53,586 INFO L231 Difference]: Finished difference. Result has 158 places, 153 transitions, 364 flow [2024-11-17 07:48:53,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=364, PETRI_PLACES=158, PETRI_TRANSITIONS=153} [2024-11-17 07:48:53,587 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-17 07:48:53,588 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 153 transitions, 364 flow [2024-11-17 07:48:53,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:53,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:53,588 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:53,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:48:53,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-17 07:48:53,789 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:53,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1540745363, now seen corresponding path program 2 times [2024-11-17 07:48:53,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:53,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717951778] [2024-11-17 07:48:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:53,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:48:53,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:53,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717951778] [2024-11-17 07:48:53,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717951778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:53,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:53,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:48:53,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866524729] [2024-11-17 07:48:53,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:53,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:48:53,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:53,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:48:53,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:48:53,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 186 [2024-11-17 07:48:53,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 153 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:53,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:53,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 186 [2024-11-17 07:48:53,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:54,217 INFO L124 PetriNetUnfolderBase]: 929/2959 cut-off events. [2024-11-17 07:48:54,218 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-17 07:48:54,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4741 conditions, 2959 events. 929/2959 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 24507 event pairs, 222 based on Foata normal form. 21/2706 useless extension candidates. Maximal degree in co-relation 4690. Up to 1682 conditions per place. [2024-11-17 07:48:54,230 INFO L140 encePairwiseOnDemand]: 180/186 looper letters, 112 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2024-11-17 07:48:54,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 676 flow [2024-11-17 07:48:54,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:48:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:48:54,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2024-11-17 07:48:54,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873655913978495 [2024-11-17 07:48:54,232 INFO L175 Difference]: Start difference. First operand has 158 places, 153 transitions, 364 flow. Second operand 4 states and 437 transitions. [2024-11-17 07:48:54,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 676 flow [2024-11-17 07:48:54,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 194 transitions, 668 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:48:54,237 INFO L231 Difference]: Finished difference. Result has 158 places, 151 transitions, 362 flow [2024-11-17 07:48:54,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=158, PETRI_TRANSITIONS=151} [2024-11-17 07:48:54,239 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-11-17 07:48:54,239 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 151 transitions, 362 flow [2024-11-17 07:48:54,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:54,240 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:54,240 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:54,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:48:54,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:54,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:54,241 INFO L85 PathProgramCache]: Analyzing trace with hash -893692561, now seen corresponding path program 1 times [2024-11-17 07:48:54,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:54,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038481968] [2024-11-17 07:48:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:54,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:54,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:54,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038481968] [2024-11-17 07:48:54,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038481968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:48:54,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151180395] [2024-11-17 07:48:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:54,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:54,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:54,363 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:48:54,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:48:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:54,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:48:54,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:48:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:54,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:48:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:54,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151180395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:48:54,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:48:54,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:48:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178559808] [2024-11-17 07:48:54,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:48:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:48:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:48:54,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:48:54,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2024-11-17 07:48:54,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 151 transitions, 362 flow. Second operand has 18 states, 18 states have (on average 83.27777777777777) internal successors, (1499), 18 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:54,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:54,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2024-11-17 07:48:54,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:54,950 INFO L124 PetriNetUnfolderBase]: 886/2925 cut-off events. [2024-11-17 07:48:54,951 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-17 07:48:54,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4666 conditions, 2925 events. 886/2925 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 24434 event pairs, 740 based on Foata normal form. 4/2638 useless extension candidates. Maximal degree in co-relation 4569. Up to 1645 conditions per place. [2024-11-17 07:48:54,963 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 64 selfloop transitions, 15 changer transitions 0/159 dead transitions. [2024-11-17 07:48:54,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 159 transitions, 584 flow [2024-11-17 07:48:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:48:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:48:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1313 transitions. [2024-11-17 07:48:54,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4706093189964158 [2024-11-17 07:48:54,966 INFO L175 Difference]: Start difference. First operand has 158 places, 151 transitions, 362 flow. Second operand 15 states and 1313 transitions. [2024-11-17 07:48:54,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 159 transitions, 584 flow [2024-11-17 07:48:54,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 159 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:48:54,969 INFO L231 Difference]: Finished difference. Result has 173 places, 159 transitions, 469 flow [2024-11-17 07:48:54,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=469, PETRI_PLACES=173, PETRI_TRANSITIONS=159} [2024-11-17 07:48:54,970 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2024-11-17 07:48:54,970 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 159 transitions, 469 flow [2024-11-17 07:48:54,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 83.27777777777777) internal successors, (1499), 18 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:54,971 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:54,971 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:54,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:48:55,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:55,172 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:55,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1594273213, now seen corresponding path program 2 times [2024-11-17 07:48:55,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:55,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796161981] [2024-11-17 07:48:55,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:55,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:55,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796161981] [2024-11-17 07:48:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796161981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:48:55,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599141044] [2024-11-17 07:48:55,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:48:55,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:55,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:48:55,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:48:55,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:48:55,501 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:48:55,501 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:48:55,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:48:55,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:48:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:55,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:48:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:48:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599141044] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:48:55,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:48:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-17 07:48:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067288713] [2024-11-17 07:48:55,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:48:55,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 07:48:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 07:48:55,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-17 07:48:55,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 186 [2024-11-17 07:48:55,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 159 transitions, 469 flow. Second operand has 23 states, 23 states have (on average 83.26086956521739) internal successors, (1915), 23 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:55,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:55,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 186 [2024-11-17 07:48:55,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:48:56,222 INFO L124 PetriNetUnfolderBase]: 886/2937 cut-off events. [2024-11-17 07:48:56,222 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-17 07:48:56,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4716 conditions, 2937 events. 886/2937 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 24413 event pairs, 740 based on Foata normal form. 3/2649 useless extension candidates. Maximal degree in co-relation 4550. Up to 1645 conditions per place. [2024-11-17 07:48:56,233 INFO L140 encePairwiseOnDemand]: 182/186 looper letters, 64 selfloop transitions, 21 changer transitions 0/165 dead transitions. [2024-11-17 07:48:56,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 165 transitions, 705 flow [2024-11-17 07:48:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:48:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:48:56,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1810 transitions. [2024-11-17 07:48:56,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.463389656938044 [2024-11-17 07:48:56,238 INFO L175 Difference]: Start difference. First operand has 173 places, 159 transitions, 469 flow. Second operand 21 states and 1810 transitions. [2024-11-17 07:48:56,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 165 transitions, 705 flow [2024-11-17 07:48:56,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 165 transitions, 687 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:48:56,244 INFO L231 Difference]: Finished difference. Result has 192 places, 165 transitions, 574 flow [2024-11-17 07:48:56,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=574, PETRI_PLACES=192, PETRI_TRANSITIONS=165} [2024-11-17 07:48:56,245 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2024-11-17 07:48:56,245 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 165 transitions, 574 flow [2024-11-17 07:48:56,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 83.26086956521739) internal successors, (1915), 23 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:56,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:56,246 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:48:56,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:48:56,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:48:56,447 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-17 07:48:56,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1933871710, now seen corresponding path program 3 times [2024-11-17 07:48:56,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:56,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239827858] [2024-11-17 07:48:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:56,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:48:56,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:48:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:48:56,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:48:56,521 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:48:56,522 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-17 07:48:56,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-17 07:48:56,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-17 07:48:56,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-17 07:48:56,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-17 07:48:56,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-17 07:48:56,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-17 07:48:56,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-17 07:48:56,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-17 07:48:56,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-17 07:48:56,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-17 07:48:56,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-17 07:48:56,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-17 07:48:56,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-17 07:48:56,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-17 07:48:56,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-17 07:48:56,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:48:56,531 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-17 07:48:56,532 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:48:56,532 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:48:56,558 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:48:56,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 193 places, 244 transitions, 504 flow [2024-11-17 07:48:56,585 INFO L124 PetriNetUnfolderBase]: 110/480 cut-off events. [2024-11-17 07:48:56,585 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:48:56,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 480 events. 110/480 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2656 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 295. Up to 12 conditions per place. [2024-11-17 07:48:56,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 244 transitions, 504 flow [2024-11-17 07:48:56,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 244 transitions, 504 flow [2024-11-17 07:48:56,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:48:56,592 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;@5d5ef856, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:48:56,593 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-17 07:48:56,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:48:56,594 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:48:56,594 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:48:56,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:48:56,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:48:56,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:48:56,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:48:56,595 INFO L85 PathProgramCache]: Analyzing trace with hash 34221069, now seen corresponding path program 1 times [2024-11-17 07:48:56,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:48:56,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119732655] [2024-11-17 07:48:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:48:56,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:48:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:48:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:48:56,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:48:56,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119732655] [2024-11-17 07:48:56,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119732655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:48:56,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:48:56,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:48:56,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803764226] [2024-11-17 07:48:56,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:48:56,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:48:56,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:48:56,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:48:56,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:48:56,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2024-11-17 07:48:56,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 244 transitions, 504 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:48:56,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:48:56,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2024-11-17 07:48:56,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:01,981 INFO L124 PetriNetUnfolderBase]: 37447/84535 cut-off events. [2024-11-17 07:49:01,981 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-17 07:49:02,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138867 conditions, 84535 events. 37447/84535 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 2557. Compared 1019378 event pairs, 32342 based on Foata normal form. 27150/103239 useless extension candidates. Maximal degree in co-relation 103046. Up to 54218 conditions per place. [2024-11-17 07:49:02,383 INFO L140 encePairwiseOnDemand]: 192/244 looper letters, 91 selfloop transitions, 3 changer transitions 0/200 dead transitions. [2024-11-17 07:49:02,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 200 transitions, 604 flow [2024-11-17 07:49:02,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 568 transitions. [2024-11-17 07:49:02,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5819672131147541 [2024-11-17 07:49:02,386 INFO L175 Difference]: Start difference. First operand has 193 places, 244 transitions, 504 flow. Second operand 4 states and 568 transitions. [2024-11-17 07:49:02,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 200 transitions, 604 flow [2024-11-17 07:49:02,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 200 transitions, 604 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:02,392 INFO L231 Difference]: Finished difference. Result has 198 places, 200 transitions, 436 flow [2024-11-17 07:49:02,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=436, PETRI_PLACES=198, PETRI_TRANSITIONS=200} [2024-11-17 07:49:02,393 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 5 predicate places. [2024-11-17 07:49:02,393 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 200 transitions, 436 flow [2024-11-17 07:49:02,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:02,393 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:02,393 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:49:02,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:49:02,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:49:02,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:02,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1536014072, now seen corresponding path program 1 times [2024-11-17 07:49:02,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:02,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144064658] [2024-11-17 07:49:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:02,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:02,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:02,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144064658] [2024-11-17 07:49:02,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144064658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:02,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489713475] [2024-11-17 07:49:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:02,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:02,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:02,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:49:02,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:49:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:02,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:49:02,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:02,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:02,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489713475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:02,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:02,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:49:02,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816373717] [2024-11-17 07:49:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:02,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:49:02,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:49:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:49:02,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2024-11-17 07:49:02,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 200 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:02,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:02,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2024-11-17 07:49:02,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:08,043 INFO L124 PetriNetUnfolderBase]: 37447/84534 cut-off events. [2024-11-17 07:49:08,043 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2024-11-17 07:49:08,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138877 conditions, 84534 events. 37447/84534 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 2557. Compared 1019197 event pairs, 32342 based on Foata normal form. 1/76089 useless extension candidates. Maximal degree in co-relation 138857. Up to 54212 conditions per place. [2024-11-17 07:49:08,469 INFO L140 encePairwiseOnDemand]: 239/244 looper letters, 87 selfloop transitions, 6 changer transitions 0/199 dead transitions. [2024-11-17 07:49:08,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 199 transitions, 618 flow [2024-11-17 07:49:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2024-11-17 07:49:08,471 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49863387978142076 [2024-11-17 07:49:08,471 INFO L175 Difference]: Start difference. First operand has 198 places, 200 transitions, 436 flow. Second operand 6 states and 730 transitions. [2024-11-17 07:49:08,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 199 transitions, 618 flow [2024-11-17 07:49:08,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 199 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:08,474 INFO L231 Difference]: Finished difference. Result has 201 places, 199 transitions, 442 flow [2024-11-17 07:49:08,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=201, PETRI_TRANSITIONS=199} [2024-11-17 07:49:08,475 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 8 predicate places. [2024-11-17 07:49:08,475 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 199 transitions, 442 flow [2024-11-17 07:49:08,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:08,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:08,475 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:49:08,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 07:49:08,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-17 07:49:08,676 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:49:08,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash 371796934, now seen corresponding path program 1 times [2024-11-17 07:49:08,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846204351] [2024-11-17 07:49:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:08,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:49:08,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:08,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846204351] [2024-11-17 07:49:08,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846204351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:08,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635644375] [2024-11-17 07:49:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:08,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:08,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:08,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:08,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:08,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 244 [2024-11-17 07:49:08,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 199 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:08,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:08,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 244 [2024-11-17 07:49:08,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:14,112 INFO L124 PetriNetUnfolderBase]: 37447/84533 cut-off events. [2024-11-17 07:49:14,113 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-11-17 07:49:14,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138878 conditions, 84533 events. 37447/84533 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 2557. Compared 1019076 event pairs, 32342 based on Foata normal form. 1/76090 useless extension candidates. Maximal degree in co-relation 138852. Up to 54215 conditions per place. [2024-11-17 07:49:14,566 INFO L140 encePairwiseOnDemand]: 241/244 looper letters, 87 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2024-11-17 07:49:14,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 198 transitions, 620 flow [2024-11-17 07:49:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2024-11-17 07:49:14,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5614754098360656 [2024-11-17 07:49:14,568 INFO L175 Difference]: Start difference. First operand has 201 places, 199 transitions, 442 flow. Second operand 3 states and 411 transitions. [2024-11-17 07:49:14,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 198 transitions, 620 flow [2024-11-17 07:49:14,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 198 transitions, 610 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:14,572 INFO L231 Difference]: Finished difference. Result has 198 places, 198 transitions, 436 flow [2024-11-17 07:49:14,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=198, PETRI_TRANSITIONS=198} [2024-11-17 07:49:14,573 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 5 predicate places. [2024-11-17 07:49:14,573 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 198 transitions, 436 flow [2024-11-17 07:49:14,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:14,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:14,574 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:14,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:49:14,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:49:14,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:14,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1712742097, now seen corresponding path program 1 times [2024-11-17 07:49:14,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:14,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263345609] [2024-11-17 07:49:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:14,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263345609] [2024-11-17 07:49:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263345609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867721478] [2024-11-17 07:49:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:14,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:14,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:14,629 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:49:14,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:49:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:14,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:49:14,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:14,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:14,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867721478] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:14,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:14,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:49:14,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87074854] [2024-11-17 07:49:14,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:14,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:49:14,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:14,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:49:14,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:49:14,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2024-11-17 07:49:14,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 198 transitions, 436 flow. Second operand has 10 states, 10 states have (on average 107.4) internal successors, (1074), 10 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:14,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:14,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2024-11-17 07:49:14,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:20,409 INFO L124 PetriNetUnfolderBase]: 37447/84539 cut-off events. [2024-11-17 07:49:20,409 INFO L125 PetriNetUnfolderBase]: For 200/200 co-relation queries the response was YES. [2024-11-17 07:49:20,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138894 conditions, 84539 events. 37447/84539 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 2557. Compared 1018944 event pairs, 32342 based on Foata normal form. 2/76097 useless extension candidates. Maximal degree in co-relation 138847. Up to 54214 conditions per place. [2024-11-17 07:49:20,863 INFO L140 encePairwiseOnDemand]: 240/244 looper letters, 88 selfloop transitions, 7 changer transitions 0/201 dead transitions. [2024-11-17 07:49:20,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 201 transitions, 648 flow [2024-11-17 07:49:20,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:49:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:49:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 839 transitions. [2024-11-17 07:49:20,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49121779859484777 [2024-11-17 07:49:20,866 INFO L175 Difference]: Start difference. First operand has 198 places, 198 transitions, 436 flow. Second operand 7 states and 839 transitions. [2024-11-17 07:49:20,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 201 transitions, 648 flow [2024-11-17 07:49:20,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 201 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:20,869 INFO L231 Difference]: Finished difference. Result has 204 places, 201 transitions, 469 flow [2024-11-17 07:49:20,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=469, PETRI_PLACES=204, PETRI_TRANSITIONS=201} [2024-11-17 07:49:20,870 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 11 predicate places. [2024-11-17 07:49:20,870 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 201 transitions, 469 flow [2024-11-17 07:49:20,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.4) internal successors, (1074), 10 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:20,870 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:20,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:49:21,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:21,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:49:21,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:21,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1926298009, now seen corresponding path program 2 times [2024-11-17 07:49:21,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:21,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913850126] [2024-11-17 07:49:21,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:21,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:21,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:49:21,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913850126] [2024-11-17 07:49:21,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913850126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:21,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:21,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:21,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183863614] [2024-11-17 07:49:21,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:21,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:21,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:21,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 244 [2024-11-17 07:49:21,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 201 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:21,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:21,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 244 [2024-11-17 07:49:21,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:27,044 INFO L124 PetriNetUnfolderBase]: 41065/92558 cut-off events. [2024-11-17 07:49:27,045 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-11-17 07:49:27,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152376 conditions, 92558 events. 41065/92558 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 2568. Compared 1118080 event pairs, 22820 based on Foata normal form. 21/82986 useless extension candidates. Maximal degree in co-relation 152324. Up to 59611 conditions per place. [2024-11-17 07:49:27,519 INFO L140 encePairwiseOnDemand]: 238/244 looper letters, 140 selfloop transitions, 3 changer transitions 0/246 dead transitions. [2024-11-17 07:49:27,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 246 transitions, 845 flow [2024-11-17 07:49:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 561 transitions. [2024-11-17 07:49:27,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5747950819672131 [2024-11-17 07:49:27,521 INFO L175 Difference]: Start difference. First operand has 204 places, 201 transitions, 469 flow. Second operand 4 states and 561 transitions. [2024-11-17 07:49:27,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 246 transitions, 845 flow [2024-11-17 07:49:27,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 246 transitions, 837 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:27,524 INFO L231 Difference]: Finished difference. Result has 207 places, 203 transitions, 485 flow [2024-11-17 07:49:27,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=485, PETRI_PLACES=207, PETRI_TRANSITIONS=203} [2024-11-17 07:49:27,525 INFO L277 CegarLoopForPetriNet]: 193 programPoint places, 14 predicate places. [2024-11-17 07:49:27,525 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 203 transitions, 485 flow [2024-11-17 07:49:27,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:27,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:27,525 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:27,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:49:27,525 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-17 07:49:27,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:27,525 INFO L85 PathProgramCache]: Analyzing trace with hash -914094131, now seen corresponding path program 1 times [2024-11-17 07:49:27,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:27,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070799791] [2024-11-17 07:49:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:27,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:27,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:27,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070799791] [2024-11-17 07:49:27,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070799791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:27,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652612317] [2024-11-17 07:49:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:27,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:27,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:27,626 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:49:27,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:49:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:27,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:49:27,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:27,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:27,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652612317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:27,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:27,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:49:27,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068168892] [2024-11-17 07:49:27,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:27,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:49:27,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:49:27,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:49:27,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 244 [2024-11-17 07:49:27,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 203 transitions, 485 flow. Second operand has 18 states, 18 states have (on average 107.33333333333333) internal successors, (1932), 18 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:27,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:27,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 244 [2024-11-17 07:49:27,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand