./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.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 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:35:53,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:35:53,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:35:53,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:35:53,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:35:53,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:35:53,385 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:35:53,385 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:35:53,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:35:53,386 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:35:53,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:35:53,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:35:53,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:35:53,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:35:53,387 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:35:53,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:35:53,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:35:53,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:35:53,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:35:53,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:35:53,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:35:53,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:35:53,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:35:53,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:35:53,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:35:53,391 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:35:53,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:35:53,392 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:35:53,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:35:53,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:35:53,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:35:53,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:35:53,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:35:53,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:35:53,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:35:53,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:35:53,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:35:53,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:35:53,394 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:35:53,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:35:53,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:35:53,395 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:35:53,395 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:35:53,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:35:53,395 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e3b4cf7a6885129025777f14c3b33a959debd694827832fbe127376cb0a5f9 [2024-10-24 23:35:53,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:35:53,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:35:53,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:35:53,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:35:53,649 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:35:53,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-10-24 23:35:54,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:35:55,175 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:35:55,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_76-tricky_address3_racefree.i [2024-10-24 23:35:55,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6552de7f/88dfd0beb91044b884df0f6b322632f8/FLAGe02991b89 [2024-10-24 23:35:55,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6552de7f/88dfd0beb91044b884df0f6b322632f8 [2024-10-24 23:35:55,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:35:55,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:35:55,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:35:55,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:35:55,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:35:55,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ade65de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55, skipping insertion in model container [2024-10-24 23:35:55,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:35:55,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:35:55,694 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:35:55,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:35:55,806 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:35:55,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55 WrapperNode [2024-10-24 23:35:55,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:35:55,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:35:55,808 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:35:55,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:35:55,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,860 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 236 [2024-10-24 23:35:55,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:35:55,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:35:55,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:35:55,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:35:55,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,898 INFO L175 MemorySlicer]: Split 20 memory accesses to 4 slices as follows [2, 11, 2, 5]. 55 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 6 writes are split as follows [0, 5, 1, 0]. [2024-10-24 23:35:55,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,918 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:35:55,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:35:55,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:35:55,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:35:55,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (1/1) ... [2024-10-24 23:35:55,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:35:55,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:35:55,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:35:55,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:35:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:35:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:35:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 23:35:56,011 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:35:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:35:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:35:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:35:56,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:35:56,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:35:56,013 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:35:56,170 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:35:56,172 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:35:56,516 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:35:56,516 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:35:56,688 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:35:56,688 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-24 23:35:56,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:35:56 BoogieIcfgContainer [2024-10-24 23:35:56,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:35:56,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:35:56,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:35:56,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:35:56,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:35:55" (1/3) ... [2024-10-24 23:35:56,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633bd47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:35:56, skipping insertion in model container [2024-10-24 23:35:56,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:35:55" (2/3) ... [2024-10-24 23:35:56,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633bd47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:35:56, skipping insertion in model container [2024-10-24 23:35:56,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:35:56" (3/3) ... [2024-10-24 23:35:56,695 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_76-tricky_address3_racefree.i [2024-10-24 23:35:56,711 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:35:56,711 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-24 23:35:56,711 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:35:56,751 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 23:35:56,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 115 transitions, 237 flow [2024-10-24 23:35:56,830 INFO L124 PetriNetUnfolderBase]: 35/162 cut-off events. [2024-10-24 23:35:56,831 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 23:35:56,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 35/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 639 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-10-24 23:35:56,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 115 transitions, 237 flow [2024-10-24 23:35:56,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 114 transitions, 235 flow [2024-10-24 23:35:56,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:35:56,859 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;@47662546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:35:56,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-24 23:35:56,864 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:35:56,864 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-24 23:35:56,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:35:56,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:56,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 23:35:56,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:56,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:56,870 INFO L85 PathProgramCache]: Analyzing trace with hash 654710, now seen corresponding path program 1 times [2024-10-24 23:35:56,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:56,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553193188] [2024-10-24 23:35:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:56,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:57,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:57,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:57,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553193188] [2024-10-24 23:35:57,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553193188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:35:57,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:35:57,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:35:57,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913732363] [2024-10-24 23:35:57,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:35:57,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:35:57,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:35:57,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:35:57,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:35:57,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 114 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:57,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:57,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:35:57,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:57,599 INFO L124 PetriNetUnfolderBase]: 486/1500 cut-off events. [2024-10-24 23:35:57,599 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 23:35:57,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1500 events. 486/1500 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10094 event pairs, 440 based on Foata normal form. 281/1596 useless extension candidates. Maximal degree in co-relation 2390. Up to 974 conditions per place. [2024-10-24 23:35:57,617 INFO L140 encePairwiseOnDemand]: 89/115 looper letters, 49 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-10-24 23:35:57,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 96 transitions, 303 flow [2024-10-24 23:35:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:35:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:35:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-10-24 23:35:57,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5456521739130434 [2024-10-24 23:35:57,630 INFO L175 Difference]: Start difference. First operand has 94 places, 114 transitions, 235 flow. Second operand 4 states and 251 transitions. [2024-10-24 23:35:57,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 96 transitions, 303 flow [2024-10-24 23:35:57,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:35:57,636 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 219 flow [2024-10-24 23:35:57,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-10-24 23:35:57,641 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-10-24 23:35:57,641 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 219 flow [2024-10-24 23:35:57,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:57,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:57,642 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 23:35:57,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:35:57,642 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:57,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:57,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1969687330, now seen corresponding path program 1 times [2024-10-24 23:35:57,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:57,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326364307] [2024-10-24 23:35:57,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:57,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:57,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326364307] [2024-10-24 23:35:57,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326364307] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:35:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736235217] [2024-10-24 23:35:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:57,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:35:57,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:35:57,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:35:57,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 23:35:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:57,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:35:57,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:35:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:57,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:35:57,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736235217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:35:57,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:35:57,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 23:35:57,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673086712] [2024-10-24 23:35:57,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:35:57,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:35:57,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:57,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:35:57,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:35:57,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:35:57,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:57,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:57,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:35:57,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:58,150 INFO L124 PetriNetUnfolderBase]: 486/1499 cut-off events. [2024-10-24 23:35:58,150 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 23:35:58,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2491 conditions, 1499 events. 486/1499 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10095 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2473. Up to 969 conditions per place. [2024-10-24 23:35:58,161 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 45 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-10-24 23:35:58,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 317 flow [2024-10-24 23:35:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:35:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:35:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2024-10-24 23:35:58,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4579710144927536 [2024-10-24 23:35:58,168 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 219 flow. Second operand 6 states and 316 transitions. [2024-10-24 23:35:58,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 317 flow [2024-10-24 23:35:58,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 95 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:35:58,171 INFO L231 Difference]: Finished difference. Result has 102 places, 95 transitions, 225 flow [2024-10-24 23:35:58,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=102, PETRI_TRANSITIONS=95} [2024-10-24 23:35:58,172 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-10-24 23:35:58,172 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 95 transitions, 225 flow [2024-10-24 23:35:58,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:58,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:58,173 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-24 23:35:58,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 23:35:58,374 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 [2024-10-24 23:35:58,374 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:58,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash -930764397, now seen corresponding path program 1 times [2024-10-24 23:35:58,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:58,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170830623] [2024-10-24 23:35:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:58,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:35:58,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:58,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170830623] [2024-10-24 23:35:58,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170830623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:35:58,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:35:58,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:35:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953076992] [2024-10-24 23:35:58,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:35:58,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:35:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:35:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:35:58,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:35:58,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 95 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:58,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:58,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:35:58,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:58,611 INFO L124 PetriNetUnfolderBase]: 486/1498 cut-off events. [2024-10-24 23:35:58,611 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 23:35:58,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1498 events. 486/1498 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10105 event pairs, 440 based on Foata normal form. 1/1315 useless extension candidates. Maximal degree in co-relation 2469. Up to 972 conditions per place. [2024-10-24 23:35:58,618 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 46 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2024-10-24 23:35:58,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 94 transitions, 321 flow [2024-10-24 23:35:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:35:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:35:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 181 transitions. [2024-10-24 23:35:58,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5246376811594203 [2024-10-24 23:35:58,622 INFO L175 Difference]: Start difference. First operand has 102 places, 95 transitions, 225 flow. Second operand 3 states and 181 transitions. [2024-10-24 23:35:58,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 94 transitions, 321 flow [2024-10-24 23:35:58,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 299 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-24 23:35:58,627 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 207 flow [2024-10-24 23:35:58,627 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2024-10-24 23:35:58,628 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2024-10-24 23:35:58,628 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 207 flow [2024-10-24 23:35:58,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:58,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:58,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:35:58,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:35:58,629 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1113109505, now seen corresponding path program 1 times [2024-10-24 23:35:58,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:58,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400918423] [2024-10-24 23:35:58,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:58,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:58,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400918423] [2024-10-24 23:35:58,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400918423] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:35:58,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004666697] [2024-10-24 23:35:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:35:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:35:58,716 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:35:58,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 23:35:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:58,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:35:58,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:35:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:58,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:35:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:35:58,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004666697] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:35:58,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:35:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-24 23:35:58,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573074005] [2024-10-24 23:35:58,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:35:58,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 23:35:58,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:58,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 23:35:58,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:35:58,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:35:58,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 207 flow. Second operand has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:58,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:58,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:35:58,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:59,074 INFO L124 PetriNetUnfolderBase]: 486/1502 cut-off events. [2024-10-24 23:35:59,076 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 23:35:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 1502 events. 486/1502 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10127 event pairs, 440 based on Foata normal form. 2/1321 useless extension candidates. Maximal degree in co-relation 2462. Up to 970 conditions per place. [2024-10-24 23:35:59,081 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 7 changer transitions 0/97 dead transitions. [2024-10-24 23:35:59,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 328 flow [2024-10-24 23:35:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:35:59,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 23:35:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 363 transitions. [2024-10-24 23:35:59,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4509316770186335 [2024-10-24 23:35:59,083 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 207 flow. Second operand 7 states and 363 transitions. [2024-10-24 23:35:59,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 328 flow [2024-10-24 23:35:59,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:35:59,086 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 233 flow [2024-10-24 23:35:59,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=233, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2024-10-24 23:35:59,086 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-24 23:35:59,087 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 233 flow [2024-10-24 23:35:59,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 45.3) internal successors, (453), 10 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:59,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:59,088 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-24 23:35:59,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 23:35:59,288 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 [2024-10-24 23:35:59,289 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:59,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:59,289 INFO L85 PathProgramCache]: Analyzing trace with hash -711593217, now seen corresponding path program 2 times [2024-10-24 23:35:59,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751004057] [2024-10-24 23:35:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:59,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:35:59,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:59,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751004057] [2024-10-24 23:35:59,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751004057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:35:59,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:35:59,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:35:59,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181864721] [2024-10-24 23:35:59,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:35:59,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:35:59,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:59,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:35:59,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:35:59,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 115 [2024-10-24 23:35:59,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 233 flow. Second operand has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:59,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:59,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 115 [2024-10-24 23:35:59,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:59,543 INFO L124 PetriNetUnfolderBase]: 483/1378 cut-off events. [2024-10-24 23:35:59,543 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-24 23:35:59,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2378 conditions, 1378 events. 483/1378 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9164 event pairs, 0 based on Foata normal form. 21/1266 useless extension candidates. Maximal degree in co-relation 2339. Up to 912 conditions per place. [2024-10-24 23:35:59,548 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 92 selfloop transitions, 3 changer transitions 0/136 dead transitions. [2024-10-24 23:35:59,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 136 transitions, 501 flow [2024-10-24 23:35:59,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:35:59,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:35:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-10-24 23:35:59,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5760869565217391 [2024-10-24 23:35:59,550 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 233 flow. Second operand 4 states and 265 transitions. [2024-10-24 23:35:59,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 136 transitions, 501 flow [2024-10-24 23:35:59,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 136 transitions, 497 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:35:59,556 INFO L231 Difference]: Finished difference. Result has 103 places, 95 transitions, 235 flow [2024-10-24 23:35:59,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=103, PETRI_TRANSITIONS=95} [2024-10-24 23:35:59,557 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-24 23:35:59,557 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 95 transitions, 235 flow [2024-10-24 23:35:59,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:59,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:59,559 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:35:59,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:35:59,559 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:59,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash -940060096, now seen corresponding path program 1 times [2024-10-24 23:35:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:59,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240638335] [2024-10-24 23:35:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:35:59,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:59,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240638335] [2024-10-24 23:35:59,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240638335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:35:59,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:35:59,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:35:59,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658359885] [2024-10-24 23:35:59,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:35:59,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:35:59,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:35:59,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:35:59,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:35:59,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:35:59,630 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 95 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:59,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:35:59,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:35:59,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:35:59,866 INFO L124 PetriNetUnfolderBase]: 506/1511 cut-off events. [2024-10-24 23:35:59,866 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-24 23:35:59,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2581 conditions, 1511 events. 506/1511 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10147 event pairs, 378 based on Foata normal form. 23/1365 useless extension candidates. Maximal degree in co-relation 2542. Up to 875 conditions per place. [2024-10-24 23:35:59,872 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 95 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-10-24 23:35:59,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 138 transitions, 525 flow [2024-10-24 23:35:59,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:35:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:35:59,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-10-24 23:35:59,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5869565217391305 [2024-10-24 23:35:59,874 INFO L175 Difference]: Start difference. First operand has 103 places, 95 transitions, 235 flow. Second operand 4 states and 270 transitions. [2024-10-24 23:35:59,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 138 transitions, 525 flow [2024-10-24 23:35:59,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 138 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:35:59,876 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 233 flow [2024-10-24 23:35:59,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2024-10-24 23:35:59,877 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-10-24 23:35:59,877 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 233 flow [2024-10-24 23:35:59,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:35:59,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:35:59,877 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:35:59,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:35:59,878 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:35:59,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:35:59,878 INFO L85 PathProgramCache]: Analyzing trace with hash 885748387, now seen corresponding path program 1 times [2024-10-24 23:35:59,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:35:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385422700] [2024-10-24 23:35:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:35:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:35:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:35:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:35:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385422700] [2024-10-24 23:35:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385422700] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:35:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612645167] [2024-10-24 23:35:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:35:59,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:35:59,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:35:59,965 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:35:59,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 23:36:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:00,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:36:00,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:36:00,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:36:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612645167] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:00,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-24 23:36:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044581797] [2024-10-24 23:36:00,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:00,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 23:36:00,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 23:36:00,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 23:36:00,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:36:00,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 233 flow. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:00,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:00,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:36:00,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:00,397 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-10-24 23:36:00,397 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-10-24 23:36:00,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2578 conditions, 1486 events. 485/1486 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9841 event pairs, 440 based on Foata normal form. 4/1340 useless extension candidates. Maximal degree in co-relation 2503. Up to 946 conditions per place. [2024-10-24 23:36:00,403 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2024-10-24 23:36:00,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 102 transitions, 403 flow [2024-10-24 23:36:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:36:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:36:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 725 transitions. [2024-10-24 23:36:00,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42028985507246375 [2024-10-24 23:36:00,406 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 233 flow. Second operand 15 states and 725 transitions. [2024-10-24 23:36:00,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 102 transitions, 403 flow [2024-10-24 23:36:00,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 102 transitions, 397 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:36:00,408 INFO L231 Difference]: Finished difference. Result has 117 places, 102 transitions, 324 flow [2024-10-24 23:36:00,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=324, PETRI_PLACES=117, PETRI_TRANSITIONS=102} [2024-10-24 23:36:00,409 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 23 predicate places. [2024-10-24 23:36:00,409 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 102 transitions, 324 flow [2024-10-24 23:36:00,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:00,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:00,409 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:00,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 23:36:00,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:00,612 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:36:00,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2022234973, now seen corresponding path program 2 times [2024-10-24 23:36:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905807115] [2024-10-24 23:36:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:36:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:00,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905807115] [2024-10-24 23:36:00,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905807115] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:00,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911236218] [2024-10-24 23:36:00,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:36:00,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:00,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:00,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:00,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 23:36:00,939 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:36:00,940 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:36:00,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 23:36:00,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:01,006 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:36:01,007 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 23:36:01,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911236218] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:01,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:01,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-24 23:36:01,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861671630] [2024-10-24 23:36:01,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:01,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 23:36:01,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 23:36:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 23:36:01,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 115 [2024-10-24 23:36:01,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 102 transitions, 324 flow. Second operand has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:01,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:01,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 115 [2024-10-24 23:36:01,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:01,566 INFO L124 PetriNetUnfolderBase]: 485/1486 cut-off events. [2024-10-24 23:36:01,566 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-10-24 23:36:01,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2565 conditions, 1486 events. 485/1486 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9748 event pairs, 440 based on Foata normal form. 3/1343 useless extension candidates. Maximal degree in co-relation 2430. Up to 947 conditions per place. [2024-10-24 23:36:01,576 INFO L140 encePairwiseOnDemand]: 111/115 looper letters, 46 selfloop transitions, 21 changer transitions 0/108 dead transitions. [2024-10-24 23:36:01,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 108 transitions, 512 flow [2024-10-24 23:36:01,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 23:36:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 23:36:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 994 transitions. [2024-10-24 23:36:01,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4115942028985507 [2024-10-24 23:36:01,579 INFO L175 Difference]: Start difference. First operand has 117 places, 102 transitions, 324 flow. Second operand 21 states and 994 transitions. [2024-10-24 23:36:01,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 108 transitions, 512 flow [2024-10-24 23:36:01,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 108 transitions, 502 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-24 23:36:01,582 INFO L231 Difference]: Finished difference. Result has 136 places, 108 transitions, 425 flow [2024-10-24 23:36:01,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=425, PETRI_PLACES=136, PETRI_TRANSITIONS=108} [2024-10-24 23:36:01,583 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2024-10-24 23:36:01,583 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 108 transitions, 425 flow [2024-10-24 23:36:01,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 45.21739130434783) internal successors, (1040), 23 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:01,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:01,584 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:01,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 23:36:01,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:01,789 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-24 23:36:01,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:01,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2024115397, now seen corresponding path program 3 times [2024-10-24 23:36:01,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:01,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988892514] [2024-10-24 23:36:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:36:01,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:36:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:36:01,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:36:01,855 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 23:36:01,856 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-10-24 23:36:01,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-10-24 23:36:01,858 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-10-24 23:36:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-10-24 23:36:01,860 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-10-24 23:36:01,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 23:36:01,861 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2024-10-24 23:36:01,863 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 23:36:01,863 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 23:36:01,889 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:36:01,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 165 transitions, 346 flow [2024-10-24 23:36:01,911 INFO L124 PetriNetUnfolderBase]: 59/278 cut-off events. [2024-10-24 23:36:01,911 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 23:36:01,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 278 events. 59/278 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1290 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 164. Up to 12 conditions per place. [2024-10-24 23:36:01,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 165 transitions, 346 flow [2024-10-24 23:36:01,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 165 transitions, 346 flow [2024-10-24 23:36:01,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:36:01,918 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;@47662546, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:36:01,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-10-24 23:36:01,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:36:01,919 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-24 23:36:01,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:36:01,919 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:01,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-24 23:36:01,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:01,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:01,920 INFO L85 PathProgramCache]: Analyzing trace with hash 818555, now seen corresponding path program 1 times [2024-10-24 23:36:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:01,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205961332] [2024-10-24 23:36:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:01,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205961332] [2024-10-24 23:36:01,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205961332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:01,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:01,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:36:01,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417248232] [2024-10-24 23:36:01,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:01,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:01,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:01,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:01,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:01,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 165 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:01,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:01,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:01,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:04,896 INFO L124 PetriNetUnfolderBase]: 20921/44082 cut-off events. [2024-10-24 23:36:04,897 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-10-24 23:36:04,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75381 conditions, 44082 events. 20921/44082 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449962 event pairs, 19440 based on Foata normal form. 9270/48624 useless extension candidates. Maximal degree in co-relation 59170. Up to 31185 conditions per place. [2024-10-24 23:36:05,115 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 72 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-10-24 23:36:05,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 440 flow [2024-10-24 23:36:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:05,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:05,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2024-10-24 23:36:05,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-10-24 23:36:05,118 INFO L175 Difference]: Start difference. First operand has 134 places, 165 transitions, 346 flow. Second operand 4 states and 356 transitions. [2024-10-24 23:36:05,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 440 flow [2024-10-24 23:36:05,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 137 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:36:05,122 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 310 flow [2024-10-24 23:36:05,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-10-24 23:36:05,124 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2024-10-24 23:36:05,125 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 310 flow [2024-10-24 23:36:05,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:05,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:05,125 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-24 23:36:05,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 23:36:05,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:05,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1383384386, now seen corresponding path program 1 times [2024-10-24 23:36:05,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:05,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866939971] [2024-10-24 23:36:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:05,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:05,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866939971] [2024-10-24 23:36:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866939971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524719148] [2024-10-24 23:36:05,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:05,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:05,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:05,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:05,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 23:36:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:05,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 23:36:05,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:05,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:36:05,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524719148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:05,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:36:05,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-24 23:36:05,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192141199] [2024-10-24 23:36:05,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:05,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:36:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:05,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:36:05,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 23:36:05,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:05,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:05,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:05,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:05,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:08,019 INFO L124 PetriNetUnfolderBase]: 20921/44081 cut-off events. [2024-10-24 23:36:08,019 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-24 23:36:08,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75391 conditions, 44081 events. 20921/44081 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449849 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75372. Up to 31180 conditions per place. [2024-10-24 23:36:08,240 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-10-24 23:36:08,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 454 flow [2024-10-24 23:36:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:36:08,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:36:08,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 447 transitions. [2024-10-24 23:36:08,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45151515151515154 [2024-10-24 23:36:08,242 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 310 flow. Second operand 6 states and 447 transitions. [2024-10-24 23:36:08,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 454 flow [2024-10-24 23:36:08,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 136 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:36:08,244 INFO L231 Difference]: Finished difference. Result has 142 places, 136 transitions, 316 flow [2024-10-24 23:36:08,244 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=142, PETRI_TRANSITIONS=136} [2024-10-24 23:36:08,245 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2024-10-24 23:36:08,245 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 136 transitions, 316 flow [2024-10-24 23:36:08,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.833333333333336) internal successors, (377), 6 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:08,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:08,245 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-24 23:36:08,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 23:36:08,446 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,SelfDestructingSolverStorable10 [2024-10-24 23:36:08,446 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:08,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 64757848, now seen corresponding path program 1 times [2024-10-24 23:36:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:08,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467212043] [2024-10-24 23:36:08,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:08,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 23:36:08,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:08,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467212043] [2024-10-24 23:36:08,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467212043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:08,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:08,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:36:08,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443504145] [2024-10-24 23:36:08,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:08,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 23:36:08,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:08,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 23:36:08,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 23:36:08,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:08,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 136 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:08,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:08,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:08,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:11,332 INFO L124 PetriNetUnfolderBase]: 20921/44080 cut-off events. [2024-10-24 23:36:11,332 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-10-24 23:36:11,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75393 conditions, 44080 events. 20921/44080 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449976 event pairs, 19440 based on Foata normal form. 1/39354 useless extension candidates. Maximal degree in co-relation 75368. Up to 31183 conditions per place. [2024-10-24 23:36:11,526 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-10-24 23:36:11,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 135 transitions, 458 flow [2024-10-24 23:36:11,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 23:36:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 23:36:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-10-24 23:36:11,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2024-10-24 23:36:11,528 INFO L175 Difference]: Start difference. First operand has 142 places, 136 transitions, 316 flow. Second operand 3 states and 258 transitions. [2024-10-24 23:36:11,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 135 transitions, 458 flow [2024-10-24 23:36:11,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 436 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-24 23:36:11,531 INFO L231 Difference]: Finished difference. Result has 137 places, 135 transitions, 298 flow [2024-10-24 23:36:11,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=137, PETRI_TRANSITIONS=135} [2024-10-24 23:36:11,533 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 3 predicate places. [2024-10-24 23:36:11,533 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 135 transitions, 298 flow [2024-10-24 23:36:11,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:11,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:11,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:11,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:36:11,533 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:11,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash 2101079636, now seen corresponding path program 1 times [2024-10-24 23:36:11,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:11,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382678296] [2024-10-24 23:36:11,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:11,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:11,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382678296] [2024-10-24 23:36:11,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382678296] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:11,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308739357] [2024-10-24 23:36:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:11,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:11,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:11,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:11,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 23:36:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:11,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:36:11,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:11,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:11,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:11,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:36:11,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308739357] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:11,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-24 23:36:11,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889108043] [2024-10-24 23:36:11,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:11,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 23:36:11,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 23:36:11,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 23:36:11,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:11,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 135 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:11,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:11,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:11,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:14,431 INFO L124 PetriNetUnfolderBase]: 20921/44084 cut-off events. [2024-10-24 23:36:14,431 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-24 23:36:14,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75396 conditions, 44084 events. 20921/44084 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 449980 event pairs, 19440 based on Foata normal form. 2/39360 useless extension candidates. Maximal degree in co-relation 75361. Up to 31181 conditions per place. [2024-10-24 23:36:14,618 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 69 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2024-10-24 23:36:14,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 138 transitions, 465 flow [2024-10-24 23:36:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 23:36:14,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 23:36:14,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 512 transitions. [2024-10-24 23:36:14,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4432900432900433 [2024-10-24 23:36:14,619 INFO L175 Difference]: Start difference. First operand has 137 places, 135 transitions, 298 flow. Second operand 7 states and 512 transitions. [2024-10-24 23:36:14,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 138 transitions, 465 flow [2024-10-24 23:36:14,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:14,622 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 324 flow [2024-10-24 23:36:14,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=324, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-10-24 23:36:14,622 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2024-10-24 23:36:14,622 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 324 flow [2024-10-24 23:36:14,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.3) internal successors, (633), 10 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:14,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:14,623 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:14,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 23:36:14,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:14,824 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:14,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:14,824 INFO L85 PathProgramCache]: Analyzing trace with hash 775482228, now seen corresponding path program 2 times [2024-10-24 23:36:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:14,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736344697] [2024-10-24 23:36:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:36:14,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:14,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736344697] [2024-10-24 23:36:14,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736344697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:14,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:14,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:14,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761855903] [2024-10-24 23:36:14,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:14,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:14,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165 [2024-10-24 23:36:14,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:14,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:14,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165 [2024-10-24 23:36:14,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:17,892 INFO L124 PetriNetUnfolderBase]: 23016/46825 cut-off events. [2024-10-24 23:36:17,892 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-10-24 23:36:17,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81493 conditions, 46825 events. 23016/46825 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 469792 event pairs, 10580 based on Foata normal form. 21/41770 useless extension candidates. Maximal degree in co-relation 81453. Up to 34473 conditions per place. [2024-10-24 23:36:18,090 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 119 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-10-24 23:36:18,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 181 transitions, 654 flow [2024-10-24 23:36:18,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:18,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2024-10-24 23:36:18,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2024-10-24 23:36:18,091 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 324 flow. Second operand 4 states and 364 transitions. [2024-10-24 23:36:18,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 181 transitions, 654 flow [2024-10-24 23:36:18,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 181 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:36:18,094 INFO L231 Difference]: Finished difference. Result has 146 places, 140 transitions, 344 flow [2024-10-24 23:36:18,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=140} [2024-10-24 23:36:18,095 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-10-24 23:36:18,095 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 140 transitions, 344 flow [2024-10-24 23:36:18,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.0) internal successors, (252), 4 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:18,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:18,095 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:18,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 23:36:18,095 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:18,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash -2084661739, now seen corresponding path program 1 times [2024-10-24 23:36:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:18,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086934703] [2024-10-24 23:36:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:36:18,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:18,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086934703] [2024-10-24 23:36:18,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086934703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:18,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:18,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:18,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534228173] [2024-10-24 23:36:18,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:18,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:18,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:18,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:18,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:18,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 140 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:18,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:18,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:18,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:20,947 INFO L124 PetriNetUnfolderBase]: 21407/40857 cut-off events. [2024-10-24 23:36:20,947 INFO L125 PetriNetUnfolderBase]: For 1134/2063 co-relation queries the response was YES. [2024-10-24 23:36:21,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74117 conditions, 40857 events. 21407/40857 cut-off events. For 1134/2063 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 395656 event pairs, 440 based on Foata normal form. 526/37645 useless extension candidates. Maximal degree in co-relation 74076. Up to 28198 conditions per place. [2024-10-24 23:36:21,169 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 167 selfloop transitions, 3 changer transitions 0/231 dead transitions. [2024-10-24 23:36:21,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 231 transitions, 896 flow [2024-10-24 23:36:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:21,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 411 transitions. [2024-10-24 23:36:21,171 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-10-24 23:36:21,171 INFO L175 Difference]: Start difference. First operand has 146 places, 140 transitions, 344 flow. Second operand 4 states and 411 transitions. [2024-10-24 23:36:21,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 231 transitions, 896 flow [2024-10-24 23:36:21,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 231 transitions, 892 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:36:21,175 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 346 flow [2024-10-24 23:36:21,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=346, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2024-10-24 23:36:21,175 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 13 predicate places. [2024-10-24 23:36:21,176 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 346 flow [2024-10-24 23:36:21,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:21,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:21,176 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:21,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 23:36:21,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:21,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash -200003581, now seen corresponding path program 1 times [2024-10-24 23:36:21,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:21,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820854510] [2024-10-24 23:36:21,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:21,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 23:36:21,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:21,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820854510] [2024-10-24 23:36:21,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820854510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:21,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:21,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:21,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756347871] [2024-10-24 23:36:21,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:21,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:21,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:21,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:21,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:21,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:21,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 139 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:21,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:21,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:21,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:24,595 INFO L124 PetriNetUnfolderBase]: 20844/43253 cut-off events. [2024-10-24 23:36:24,596 INFO L125 PetriNetUnfolderBase]: For 2073/2949 co-relation queries the response was YES. [2024-10-24 23:36:24,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77022 conditions, 43253 events. 20844/43253 cut-off events. For 2073/2949 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 437036 event pairs, 15754 based on Foata normal form. 525/39532 useless extension candidates. Maximal degree in co-relation 76981. Up to 26761 conditions per place. [2024-10-24 23:36:24,804 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 166 selfloop transitions, 3 changer transitions 0/230 dead transitions. [2024-10-24 23:36:24,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 230 transitions, 894 flow [2024-10-24 23:36:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2024-10-24 23:36:24,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6212121212121212 [2024-10-24 23:36:24,806 INFO L175 Difference]: Start difference. First operand has 147 places, 139 transitions, 346 flow. Second operand 4 states and 410 transitions. [2024-10-24 23:36:24,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 230 transitions, 894 flow [2024-10-24 23:36:24,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 230 transitions, 888 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:36:24,812 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 344 flow [2024-10-24 23:36:24,812 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-10-24 23:36:24,813 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 12 predicate places. [2024-10-24 23:36:24,813 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 344 flow [2024-10-24 23:36:24,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.5) internal successors, (258), 4 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:24,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:24,813 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:24,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 23:36:24,814 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:24,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash -281275738, now seen corresponding path program 1 times [2024-10-24 23:36:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:24,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201904321] [2024-10-24 23:36:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:24,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:24,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201904321] [2024-10-24 23:36:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201904321] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977952924] [2024-10-24 23:36:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:24,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:24,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:24,887 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:24,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 23:36:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:24,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 23:36:24,961 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:24,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:25,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977952924] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:25,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:25,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-10-24 23:36:25,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668326029] [2024-10-24 23:36:25,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:25,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 23:36:25,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:25,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 23:36:25,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 23:36:25,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:25,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 344 flow. Second operand has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:25,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:25,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:25,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:28,326 INFO L124 PetriNetUnfolderBase]: 20919/44308 cut-off events. [2024-10-24 23:36:28,327 INFO L125 PetriNetUnfolderBase]: For 2589/3459 co-relation queries the response was YES. [2024-10-24 23:36:28,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78137 conditions, 44308 events. 20919/44308 cut-off events. For 2589/3459 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453349 event pairs, 19440 based on Foata normal form. 22/39995 useless extension candidates. Maximal degree in co-relation 78060. Up to 31203 conditions per place. [2024-10-24 23:36:28,778 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 15 changer transitions 0/146 dead transitions. [2024-10-24 23:36:28,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 146 transitions, 562 flow [2024-10-24 23:36:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 23:36:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 23:36:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1018 transitions. [2024-10-24 23:36:28,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4113131313131313 [2024-10-24 23:36:28,781 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 344 flow. Second operand 15 states and 1018 transitions. [2024-10-24 23:36:28,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 146 transitions, 562 flow [2024-10-24 23:36:28,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 556 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:36:28,785 INFO L231 Difference]: Finished difference. Result has 161 places, 146 transitions, 435 flow [2024-10-24 23:36:28,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=435, PETRI_PLACES=161, PETRI_TRANSITIONS=146} [2024-10-24 23:36:28,785 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 27 predicate places. [2024-10-24 23:36:28,785 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 146 transitions, 435 flow [2024-10-24 23:36:28,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 63.27777777777778) internal successors, (1139), 18 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:28,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:28,786 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:28,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 23:36:28,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:28,991 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:28,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash 882673766, now seen corresponding path program 2 times [2024-10-24 23:36:28,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:28,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350710863] [2024-10-24 23:36:28,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:28,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:29,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:29,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350710863] [2024-10-24 23:36:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350710863] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126767434] [2024-10-24 23:36:29,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 23:36:29,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:29,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:29,206 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:29,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 23:36:29,288 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 23:36:29,288 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:36:29,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 23:36:29,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:29,341 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:29,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 23:36:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 23:36:29,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126767434] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 23:36:29,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 23:36:29,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-10-24 23:36:29,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540258471] [2024-10-24 23:36:29,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 23:36:29,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 23:36:29,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:29,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 23:36:29,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-24 23:36:29,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-24 23:36:29,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 146 transitions, 435 flow. Second operand has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:29,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:29,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-24 23:36:29,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:32,833 INFO L124 PetriNetUnfolderBase]: 20919/44317 cut-off events. [2024-10-24 23:36:32,833 INFO L125 PetriNetUnfolderBase]: For 1163/2033 co-relation queries the response was YES. [2024-10-24 23:36:32,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76680 conditions, 44317 events. 20919/44317 cut-off events. For 1163/2033 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 453270 event pairs, 19440 based on Foata normal form. 21/40003 useless extension candidates. Maximal degree in co-relation 76543. Up to 31203 conditions per place. [2024-10-24 23:36:33,128 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 70 selfloop transitions, 21 changer transitions 0/152 dead transitions. [2024-10-24 23:36:33,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 152 transitions, 671 flow [2024-10-24 23:36:33,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 23:36:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-24 23:36:33,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1395 transitions. [2024-10-24 23:36:33,131 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4025974025974026 [2024-10-24 23:36:33,131 INFO L175 Difference]: Start difference. First operand has 161 places, 146 transitions, 435 flow. Second operand 21 states and 1395 transitions. [2024-10-24 23:36:33,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 152 transitions, 671 flow [2024-10-24 23:36:33,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 152 transitions, 661 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-24 23:36:33,135 INFO L231 Difference]: Finished difference. Result has 180 places, 152 transitions, 536 flow [2024-10-24 23:36:33,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=536, PETRI_PLACES=180, PETRI_TRANSITIONS=152} [2024-10-24 23:36:33,136 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 46 predicate places. [2024-10-24 23:36:33,136 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 152 transitions, 536 flow [2024-10-24 23:36:33,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 63.26086956521739) internal successors, (1455), 23 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:33,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:33,136 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:33,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 23:36:33,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-24 23:36:33,340 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:33,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1030794019, now seen corresponding path program 3 times [2024-10-24 23:36:33,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:33,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20590403] [2024-10-24 23:36:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:36:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20590403] [2024-10-24 23:36:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20590403] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 23:36:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525722831] [2024-10-24 23:36:33,415 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 23:36:33,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:36:33,417 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 23:36:33,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 23:36:33,492 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 23:36:33,492 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 23:36:33,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 23:36:33,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 23:36:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-24 23:36:33,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 23:36:33,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525722831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:33,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 23:36:33,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-24 23:36:33,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587706798] [2024-10-24 23:36:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:33,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:36:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:33,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:36:33,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-24 23:36:33,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 165 [2024-10-24 23:36:33,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 152 transitions, 536 flow. Second operand has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:33,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:33,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 165 [2024-10-24 23:36:33,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:36:36,980 INFO L124 PetriNetUnfolderBase]: 23079/43735 cut-off events. [2024-10-24 23:36:36,980 INFO L125 PetriNetUnfolderBase]: For 1212/1212 co-relation queries the response was YES. [2024-10-24 23:36:37,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80480 conditions, 43735 events. 23079/43735 cut-off events. For 1212/1212 co-relation queries the response was YES. Maximal size of possible extension queue 1158. Compared 415503 event pairs, 2140 based on Foata normal form. 441/40215 useless extension candidates. Maximal degree in co-relation 80319. Up to 27099 conditions per place. [2024-10-24 23:36:37,262 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 169 selfloop transitions, 6 changer transitions 0/231 dead transitions. [2024-10-24 23:36:37,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 231 transitions, 1042 flow [2024-10-24 23:36:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:36:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:36:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 395 transitions. [2024-10-24 23:36:37,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5984848484848485 [2024-10-24 23:36:37,263 INFO L175 Difference]: Start difference. First operand has 180 places, 152 transitions, 536 flow. Second operand 4 states and 395 transitions. [2024-10-24 23:36:37,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 231 transitions, 1042 flow [2024-10-24 23:36:37,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 231 transitions, 999 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-10-24 23:36:37,272 INFO L231 Difference]: Finished difference. Result has 169 places, 151 transitions, 501 flow [2024-10-24 23:36:37,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=166, 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=4, PETRI_FLOW=501, PETRI_PLACES=169, PETRI_TRANSITIONS=151} [2024-10-24 23:36:37,273 INFO L277 CegarLoopForPetriNet]: 134 programPoint places, 35 predicate places. [2024-10-24 23:36:37,273 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 151 transitions, 501 flow [2024-10-24 23:36:37,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:37,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:36:37,273 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 23:36:37,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 23:36:37,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 23:36:37,475 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-10-24 23:36:37,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:36:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1889844393, now seen corresponding path program 1 times [2024-10-24 23:36:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:36:37,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899331801] [2024-10-24 23:36:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:36:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:36:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:36:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-24 23:36:37,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:36:37,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899331801] [2024-10-24 23:36:37,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899331801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:36:37,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:36:37,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:36:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606236112] [2024-10-24 23:36:37,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:36:37,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:36:37,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:36:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:36:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:36:37,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 165 [2024-10-24 23:36:37,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 151 transitions, 501 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:36:37,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:36:37,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 165 [2024-10-24 23:36:37,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand