./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:29:53,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:29:53,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:29:53,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:29:53,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:29:53,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:29:53,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:29:53,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:29:53,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:29:53,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:29:53,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:29:53,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:29:53,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:29:53,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:29:53,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:29:53,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:29:53,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:29:53,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:29:53,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:29:53,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:29:53,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:29:53,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:29:53,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:29:53,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:29:53,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:29:53,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:29:53,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:29:53,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:29:53,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:29:53,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:29:53,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:29:53,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:29:53,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:29:53,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:29:53,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:29:53,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:29:53,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:29:53,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:29:53,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:29:53,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:29:53,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:29:53,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:29:53,746 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:29:53,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:29:53,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:29:53,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:29:53,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:29:53,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:29:53,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:29:53,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:29:53,750 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:29:53,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:29:53,751 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:29:53,751 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:29:53,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:29:53,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:29:53,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:29:53,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:29:53,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:29:53,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:29:53,752 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:29:53,752 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:29:53,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:29:53,753 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:29:53,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:29:53,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:29:53,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:29:53,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:29:53,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:29:53,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:29:53,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:29:53,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:29:53,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:29:53,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:29:53,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:29:53,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:29:53,755 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:29:53,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:29:53,756 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:29:53,756 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dda5467f7679a243042daf02aae11f74f39b907c2525dfc042cb8ad8b69dcfc9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:29:54,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:29:54,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:29:54,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:29:54,081 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:29:54,081 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:29:54,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-30 14:29:55,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:29:55,551 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:29:55,555 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2023-08-30 14:29:55,574 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cae1384f/eee9e984c3a148bb92408d3981ead34f/FLAG4c564f1ac [2023-08-30 14:29:55,589 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cae1384f/eee9e984c3a148bb92408d3981ead34f [2023-08-30 14:29:55,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:29:55,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:29:55,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:29:55,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:29:55,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:29:55,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:29:55" (1/1) ... [2023-08-30 14:29:55,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132cf39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:55, skipping insertion in model container [2023-08-30 14:29:55,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:29:55" (1/1) ... [2023-08-30 14:29:55,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:29:55,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:29:56,009 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-30 14:29:56,024 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,024 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,025 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,025 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:29:56,081 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:29:56,167 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_92-evilcollapse_racing.i[47038,47051] [2023-08-30 14:29:56,172 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,174 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,175 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,175 WARN L1562 CHandler]: Possible shadowing of function new [2023-08-30 14:29:56,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:29:56,252 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:29:56,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56 WrapperNode [2023-08-30 14:29:56,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:29:56,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:29:56,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:29:56,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:29:56,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,307 INFO L138 Inliner]: procedures = 278, calls = 51, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 241 [2023-08-30 14:29:56,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:29:56,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:29:56,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:29:56,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:29:56,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:29:56,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:29:56,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:29:56,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:29:56,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (1/1) ... [2023-08-30 14:29:56,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:29:56,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:29:56,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 14:29:56,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 14:29:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:29:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 14:29:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:29:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:29:56,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 14:29:56,441 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 14:29:56,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:29:56,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:29:56,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:29:56,443 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:29:56,661 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:29:56,664 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:29:57,170 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:29:57,178 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:29:57,178 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-08-30 14:29:57,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:29:57 BoogieIcfgContainer [2023-08-30 14:29:57,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:29:57,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:29:57,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:29:57,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:29:57,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:29:55" (1/3) ... [2023-08-30 14:29:57,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6699c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:29:57, skipping insertion in model container [2023-08-30 14:29:57,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:29:56" (2/3) ... [2023-08-30 14:29:57,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6699c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:29:57, skipping insertion in model container [2023-08-30 14:29:57,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:29:57" (3/3) ... [2023-08-30 14:29:57,189 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2023-08-30 14:29:57,201 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:29:57,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:29:57,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-30 14:29:57,208 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:29:57,273 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 14:29:57,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 264 transitions, 536 flow [2023-08-30 14:29:57,398 INFO L130 PetriNetUnfolder]: 28/280 cut-off events. [2023-08-30 14:29:57,398 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-30 14:29:57,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 280 events. 28/280 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 522 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 146. Up to 4 conditions per place. [2023-08-30 14:29:57,406 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 264 transitions, 536 flow [2023-08-30 14:29:57,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 261 transitions, 530 flow [2023-08-30 14:29:57,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:29:57,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 261 transitions, 530 flow [2023-08-30 14:29:57,451 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 261 transitions, 530 flow [2023-08-30 14:29:57,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 261 transitions, 530 flow [2023-08-30 14:29:57,525 INFO L130 PetriNetUnfolder]: 27/277 cut-off events. [2023-08-30 14:29:57,526 INFO L131 PetriNetUnfolder]: For 1/2 co-relation queries the response was YES. [2023-08-30 14:29:57,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 277 events. 27/277 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 510 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 146. Up to 4 conditions per place. [2023-08-30 14:29:57,535 INFO L119 LiptonReduction]: Number of co-enabled transitions 5096 [2023-08-30 14:30:15,568 WARN L222 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 191 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 14:30:30,780 WARN L222 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 191 DAG size of output: 189 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 14:30:47,692 WARN L222 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 192 DAG size of output: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 14:31:07,311 WARN L222 SmtUtils]: Spent 14.64s on a formula simplification. DAG size of input: 192 DAG size of output: 191 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 14:31:13,257 WARN L222 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 14:31:13,269 INFO L134 LiptonReduction]: Checked pairs total: 5747 [2023-08-30 14:31:13,270 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-08-30 14:31:13,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:31:13,285 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@23caa50d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:31:13,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-30 14:31:13,289 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2023-08-30 14:31:13,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:31:13,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:13,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:31:13,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:13,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1034805, now seen corresponding path program 1 times [2023-08-30 14:31:13,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:13,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16900338] [2023-08-30 14:31:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:13,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:13,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:13,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360867532] [2023-08-30 14:31:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:13,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:13,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:13,421 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) [2023-08-30 14:31:13,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 14:31:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:13,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 14:31:13,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:13,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:31:13,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:13,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:13,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16900338] [2023-08-30 14:31:13,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:13,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360867532] [2023-08-30 14:31:13,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360867532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:13,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:13,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:31:13,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163048014] [2023-08-30 14:31:13,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:13,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:31:13,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:31:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:31:13,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 546 [2023-08-30 14:31:13,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 52 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2023-08-30 14:31:13,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:13,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 546 [2023-08-30 14:31:13,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:13,971 INFO L130 PetriNetUnfolder]: 102/233 cut-off events. [2023-08-30 14:31:13,972 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:31:13,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 233 events. 102/233 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 863 event pairs, 80 based on Foata normal form. 12/135 useless extension candidates. Maximal degree in co-relation 404. Up to 209 conditions per place. [2023-08-30 14:31:13,977 INFO L137 encePairwiseOnDemand]: 527/546 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-08-30 14:31:13,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 180 flow [2023-08-30 14:31:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:31:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:31:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 763 transitions. [2023-08-30 14:31:13,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4658119658119658 [2023-08-30 14:31:13,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 763 transitions. [2023-08-30 14:31:13,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 763 transitions. [2023-08-30 14:31:13,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:14,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 763 transitions. [2023-08-30 14:31:14,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.33333333333334) internal successors, (763), 3 states have internal predecessors, (763), 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) [2023-08-30 14:31:14,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:14,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:14,018 INFO L175 Difference]: Start difference. First operand has 41 places, 52 transitions, 112 flow. Second operand 3 states and 763 transitions. [2023-08-30 14:31:14,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 180 flow [2023-08-30 14:31:14,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 180 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:31:14,022 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 120 flow [2023-08-30 14:31:14,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2023-08-30 14:31:14,027 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-08-30 14:31:14,028 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 120 flow [2023-08-30 14:31:14,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2023-08-30 14:31:14,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:14,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:31:14,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-30 14:31:14,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-08-30 14:31:14,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:14,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:14,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1035057, now seen corresponding path program 1 times [2023-08-30 14:31:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:14,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862341602] [2023-08-30 14:31:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:14,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:14,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254041638] [2023-08-30 14:31:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:14,272 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) [2023-08-30 14:31:14,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 14:31:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:14,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 14:31:14,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:31:14,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:14,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:14,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862341602] [2023-08-30 14:31:14,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:14,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254041638] [2023-08-30 14:31:14,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254041638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:14,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:14,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:31:14,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861133882] [2023-08-30 14:31:14,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:14,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:31:14,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:14,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:31:14,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:31:14,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 546 [2023-08-30 14:31:14,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2023-08-30 14:31:14,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:14,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 546 [2023-08-30 14:31:14,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:14,576 INFO L130 PetriNetUnfolder]: 101/231 cut-off events. [2023-08-30 14:31:14,576 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 14:31:14,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 231 events. 101/231 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 861 event pairs, 80 based on Foata normal form. 2/128 useless extension candidates. Maximal degree in co-relation 445. Up to 210 conditions per place. [2023-08-30 14:31:14,578 INFO L137 encePairwiseOnDemand]: 544/546 looper letters, 37 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2023-08-30 14:31:14,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 188 flow [2023-08-30 14:31:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:31:14,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:31:14,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2023-08-30 14:31:14,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45726495726495725 [2023-08-30 14:31:14,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 749 transitions. [2023-08-30 14:31:14,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 749 transitions. [2023-08-30 14:31:14,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:14,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 749 transitions. [2023-08-30 14:31:14,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 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) [2023-08-30 14:31:14,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:14,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:14,588 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 120 flow. Second operand 3 states and 749 transitions. [2023-08-30 14:31:14,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 188 flow [2023-08-30 14:31:14,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 14:31:14,590 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 113 flow [2023-08-30 14:31:14,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-08-30 14:31:14,591 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2023-08-30 14:31:14,591 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 113 flow [2023-08-30 14:31:14,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 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) [2023-08-30 14:31:14,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:14,592 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2023-08-30 14:31:14,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-30 14:31:14,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-08-30 14:31:14,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:14,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash 994658976, now seen corresponding path program 1 times [2023-08-30 14:31:14,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:14,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657862294] [2023-08-30 14:31:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:14,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:14,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:14,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599147276] [2023-08-30 14:31:14,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:14,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:14,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:14,854 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) [2023-08-30 14:31:14,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 14:31:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:14,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-30 14:31:14,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:31:14,955 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:14,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657862294] [2023-08-30 14:31:14,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:14,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599147276] [2023-08-30 14:31:14,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599147276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 14:31:14,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947794336] [2023-08-30 14:31:14,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:14,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:31:14,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:14,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:31:14,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:31:14,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 546 [2023-08-30 14:31:14,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2023-08-30 14:31:14,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:14,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 546 [2023-08-30 14:31:14,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:15,223 INFO L130 PetriNetUnfolder]: 101/235 cut-off events. [2023-08-30 14:31:15,224 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 14:31:15,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 235 events. 101/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 875 event pairs, 80 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 461. Up to 212 conditions per place. [2023-08-30 14:31:15,225 INFO L137 encePairwiseOnDemand]: 541/546 looper letters, 38 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-08-30 14:31:15,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 205 flow [2023-08-30 14:31:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:31:15,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:31:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2023-08-30 14:31:15,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4597069597069597 [2023-08-30 14:31:15,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2023-08-30 14:31:15,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2023-08-30 14:31:15,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:15,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2023-08-30 14:31:15,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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) [2023-08-30 14:31:15,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:15,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:15,235 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 113 flow. Second operand 3 states and 753 transitions. [2023-08-30 14:31:15,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 205 flow [2023-08-30 14:31:15,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:31:15,237 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 134 flow [2023-08-30 14:31:15,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-08-30 14:31:15,237 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 5 predicate places. [2023-08-30 14:31:15,238 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 134 flow [2023-08-30 14:31:15,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.66666666666666) internal successors, (716), 3 states have internal predecessors, (716), 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) [2023-08-30 14:31:15,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:15,239 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:31:15,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-30 14:31:15,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:15,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:15,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:15,446 INFO L85 PathProgramCache]: Analyzing trace with hash 771621977, now seen corresponding path program 1 times [2023-08-30 14:31:15,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:15,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556498407] [2023-08-30 14:31:15,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:15,483 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:15,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535140665] [2023-08-30 14:31:15,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:15,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:15,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:15,485 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) [2023-08-30 14:31:15,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 14:31:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:15,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 14:31:15,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:15,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:31:15,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:31:15,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:15,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556498407] [2023-08-30 14:31:15,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:15,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535140665] [2023-08-30 14:31:15,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535140665] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:15,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:15,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-08-30 14:31:15,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485615429] [2023-08-30 14:31:15,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:15,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 14:31:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 14:31:15,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 14:31:15,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 546 [2023-08-30 14:31:15,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 134 flow. Second operand has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 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) [2023-08-30 14:31:15,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:15,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 546 [2023-08-30 14:31:15,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:16,121 INFO L130 PetriNetUnfolder]: 103/247 cut-off events. [2023-08-30 14:31:16,122 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-30 14:31:16,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 247 events. 103/247 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 935 event pairs, 80 based on Foata normal form. 6/145 useless extension candidates. Maximal degree in co-relation 508. Up to 210 conditions per place. [2023-08-30 14:31:16,124 INFO L137 encePairwiseOnDemand]: 539/546 looper letters, 42 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2023-08-30 14:31:16,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 278 flow [2023-08-30 14:31:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 14:31:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 14:31:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2023-08-30 14:31:16,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44963369963369965 [2023-08-30 14:31:16,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1473 transitions. [2023-08-30 14:31:16,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1473 transitions. [2023-08-30 14:31:16,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:16,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1473 transitions. [2023-08-30 14:31:16,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 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) [2023-08-30 14:31:16,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 546.0) internal successors, (3822), 7 states have internal predecessors, (3822), 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) [2023-08-30 14:31:16,140 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 546.0) internal successors, (3822), 7 states have internal predecessors, (3822), 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) [2023-08-30 14:31:16,140 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 134 flow. Second operand 6 states and 1473 transitions. [2023-08-30 14:31:16,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 278 flow [2023-08-30 14:31:16,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:31:16,142 INFO L231 Difference]: Finished difference. Result has 54 places, 48 transitions, 210 flow [2023-08-30 14:31:16,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2023-08-30 14:31:16,144 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2023-08-30 14:31:16,144 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 210 flow [2023-08-30 14:31:16,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 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) [2023-08-30 14:31:16,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:16,148 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1] [2023-08-30 14:31:16,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:16,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:16,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:16,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:16,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1618579232, now seen corresponding path program 2 times [2023-08-30 14:31:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:16,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179449730] [2023-08-30 14:31:16,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:16,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:16,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:16,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665871824] [2023-08-30 14:31:16,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 14:31:16,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:16,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:16,421 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) [2023-08-30 14:31:16,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-30 14:31:16,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 14:31:16,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:31:16,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 14:31:16,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-08-30 14:31:16,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:16,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:16,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179449730] [2023-08-30 14:31:16,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:16,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665871824] [2023-08-30 14:31:16,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665871824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:16,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:16,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:31:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500605585] [2023-08-30 14:31:16,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:16,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:31:16,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:31:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:31:16,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 546 [2023-08-30 14:31:16,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2023-08-30 14:31:16,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:16,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 546 [2023-08-30 14:31:16,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:16,818 INFO L130 PetriNetUnfolder]: 103/245 cut-off events. [2023-08-30 14:31:16,818 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-30 14:31:16,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 245 events. 103/245 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 921 event pairs, 80 based on Foata normal form. 1/139 useless extension candidates. Maximal degree in co-relation 540. Up to 224 conditions per place. [2023-08-30 14:31:16,820 INFO L137 encePairwiseOnDemand]: 542/546 looper letters, 41 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2023-08-30 14:31:16,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 298 flow [2023-08-30 14:31:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:31:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:31:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-08-30 14:31:16,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542124542124542 [2023-08-30 14:31:16,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-08-30 14:31:16,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-08-30 14:31:16,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:16,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-08-30 14:31:16,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2023-08-30 14:31:16,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:16,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:16,829 INFO L175 Difference]: Start difference. First operand has 54 places, 48 transitions, 210 flow. Second operand 3 states and 744 transitions. [2023-08-30 14:31:16,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 298 flow [2023-08-30 14:31:16,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 48 transitions, 287 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 14:31:16,832 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 212 flow [2023-08-30 14:31:16,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2023-08-30 14:31:16,833 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2023-08-30 14:31:16,833 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 212 flow [2023-08-30 14:31:16,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 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) [2023-08-30 14:31:16,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:16,834 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 2, 1, 1, 1] [2023-08-30 14:31:16,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:17,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:17,040 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:17,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1363655713, now seen corresponding path program 3 times [2023-08-30 14:31:17,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:17,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169266690] [2023-08-30 14:31:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:17,103 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:17,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144480857] [2023-08-30 14:31:17,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 14:31:17,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:17,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:17,105 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) [2023-08-30 14:31:17,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-30 14:31:17,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-30 14:31:17,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:31:17,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 14:31:17,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 14:31:17,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 14:31:17,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:17,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169266690] [2023-08-30 14:31:17,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:17,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144480857] [2023-08-30 14:31:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144480857] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:17,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2023-08-30 14:31:17,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269965580] [2023-08-30 14:31:17,671 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:17,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 14:31:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 14:31:17,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-08-30 14:31:17,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 546 [2023-08-30 14:31:17,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 212 flow. Second operand has 10 states, 10 states have (on average 230.4) internal successors, (2304), 10 states have internal predecessors, (2304), 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) [2023-08-30 14:31:17,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:17,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 546 [2023-08-30 14:31:17,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:20,544 INFO L130 PetriNetUnfolder]: 203/474 cut-off events. [2023-08-30 14:31:20,544 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-30 14:31:20,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 474 events. 203/474 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2006 event pairs, 160 based on Foata normal form. 2/270 useless extension candidates. Maximal degree in co-relation 1011. Up to 208 conditions per place. [2023-08-30 14:31:20,547 INFO L137 encePairwiseOnDemand]: 537/546 looper letters, 72 selfloop transitions, 15 changer transitions 0/91 dead transitions. [2023-08-30 14:31:20,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 91 transitions, 558 flow [2023-08-30 14:31:20,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 14:31:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 14:31:20,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2603 transitions. [2023-08-30 14:31:20,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4333999333999334 [2023-08-30 14:31:20,555 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2603 transitions. [2023-08-30 14:31:20,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2603 transitions. [2023-08-30 14:31:20,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:20,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2603 transitions. [2023-08-30 14:31:20,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 236.63636363636363) internal successors, (2603), 11 states have internal predecessors, (2603), 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) [2023-08-30 14:31:20,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 546.0) internal successors, (6552), 12 states have internal predecessors, (6552), 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) [2023-08-30 14:31:20,569 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 546.0) internal successors, (6552), 12 states have internal predecessors, (6552), 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) [2023-08-30 14:31:20,570 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 212 flow. Second operand 11 states and 2603 transitions. [2023-08-30 14:31:20,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 91 transitions, 558 flow [2023-08-30 14:31:20,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 91 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 14:31:20,573 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 334 flow [2023-08-30 14:31:20,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=334, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2023-08-30 14:31:20,574 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2023-08-30 14:31:20,574 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 334 flow [2023-08-30 14:31:20,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 230.4) internal successors, (2304), 10 states have internal predecessors, (2304), 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) [2023-08-30 14:31:20,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:20,575 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 2, 1, 1, 1] [2023-08-30 14:31:20,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:20,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:20,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:20,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash -676341647, now seen corresponding path program 1 times [2023-08-30 14:31:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:20,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551850094] [2023-08-30 14:31:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:20,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:20,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427527071] [2023-08-30 14:31:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:20,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:20,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:20,877 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) [2023-08-30 14:31:20,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-30 14:31:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:21,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 14:31:21,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-30 14:31:21,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-30 14:31:21,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:21,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551850094] [2023-08-30 14:31:21,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:21,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427527071] [2023-08-30 14:31:21,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427527071] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:21,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:21,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-08-30 14:31:21,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634258360] [2023-08-30 14:31:21,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:21,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 14:31:21,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 14:31:21,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-30 14:31:21,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 546 [2023-08-30 14:31:21,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 334 flow. Second operand has 12 states, 12 states have (on average 237.33333333333334) internal successors, (2848), 12 states have internal predecessors, (2848), 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) [2023-08-30 14:31:21,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:21,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 546 [2023-08-30 14:31:21,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:22,444 INFO L130 PetriNetUnfolder]: 203/510 cut-off events. [2023-08-30 14:31:22,445 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-08-30 14:31:22,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1258 conditions, 510 events. 203/510 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1989 event pairs, 160 based on Foata normal form. 18/325 useless extension candidates. Maximal degree in co-relation 1231. Up to 412 conditions per place. [2023-08-30 14:31:22,448 INFO L137 encePairwiseOnDemand]: 540/546 looper letters, 59 selfloop transitions, 21 changer transitions 0/84 dead transitions. [2023-08-30 14:31:22,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 84 transitions, 751 flow [2023-08-30 14:31:22,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 14:31:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 14:31:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2906 transitions. [2023-08-30 14:31:22,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4435286935286935 [2023-08-30 14:31:22,455 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2906 transitions. [2023-08-30 14:31:22,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2906 transitions. [2023-08-30 14:31:22,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:22,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2906 transitions. [2023-08-30 14:31:22,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 242.16666666666666) internal successors, (2906), 12 states have internal predecessors, (2906), 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) [2023-08-30 14:31:22,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 546.0) internal successors, (7098), 13 states have internal predecessors, (7098), 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) [2023-08-30 14:31:22,497 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 546.0) internal successors, (7098), 13 states have internal predecessors, (7098), 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) [2023-08-30 14:31:22,498 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 334 flow. Second operand 12 states and 2906 transitions. [2023-08-30 14:31:22,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 84 transitions, 751 flow [2023-08-30 14:31:22,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 721 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-30 14:31:22,503 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 494 flow [2023-08-30 14:31:22,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=494, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2023-08-30 14:31:22,504 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 42 predicate places. [2023-08-30 14:31:22,504 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 494 flow [2023-08-30 14:31:22,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 237.33333333333334) internal successors, (2848), 12 states have internal predecessors, (2848), 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) [2023-08-30 14:31:22,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:22,505 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 2, 1, 1, 1] [2023-08-30 14:31:22,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:22,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:22,717 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:22,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:22,717 INFO L85 PathProgramCache]: Analyzing trace with hash -983818799, now seen corresponding path program 2 times [2023-08-30 14:31:22,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:22,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104577156] [2023-08-30 14:31:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:22,856 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:22,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571520474] [2023-08-30 14:31:22,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 14:31:22,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:22,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:22,858 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) [2023-08-30 14:31:22,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-30 14:31:23,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 14:31:23,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:31:23,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 14:31:23,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-30 14:31:23,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-30 14:31:23,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104577156] [2023-08-30 14:31:23,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571520474] [2023-08-30 14:31:23,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571520474] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:23,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:23,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2023-08-30 14:31:23,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517125804] [2023-08-30 14:31:23,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:23,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-30 14:31:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:23,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-30 14:31:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-08-30 14:31:24,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 546 [2023-08-30 14:31:24,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 66 transitions, 494 flow. Second operand has 24 states, 24 states have (on average 237.16666666666666) internal successors, (5692), 24 states have internal predecessors, (5692), 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) [2023-08-30 14:31:24,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:24,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 546 [2023-08-30 14:31:24,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:26,233 INFO L130 PetriNetUnfolder]: 203/582 cut-off events. [2023-08-30 14:31:26,233 INFO L131 PetriNetUnfolder]: For 2393/2393 co-relation queries the response was YES. [2023-08-30 14:31:26,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 582 events. 203/582 cut-off events. For 2393/2393 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2148 event pairs, 160 based on Foata normal form. 36/415 useless extension candidates. Maximal degree in co-relation 1803. Up to 412 conditions per place. [2023-08-30 14:31:26,237 INFO L137 encePairwiseOnDemand]: 540/546 looper letters, 95 selfloop transitions, 33 changer transitions 0/132 dead transitions. [2023-08-30 14:31:26,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 132 transitions, 1580 flow [2023-08-30 14:31:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 14:31:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 14:31:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5786 transitions. [2023-08-30 14:31:26,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44154456654456653 [2023-08-30 14:31:26,249 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5786 transitions. [2023-08-30 14:31:26,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5786 transitions. [2023-08-30 14:31:26,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:26,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5786 transitions. [2023-08-30 14:31:26,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 241.08333333333334) internal successors, (5786), 24 states have internal predecessors, (5786), 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) [2023-08-30 14:31:26,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 546.0) internal successors, (13650), 25 states have internal predecessors, (13650), 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) [2023-08-30 14:31:26,294 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 546.0) internal successors, (13650), 25 states have internal predecessors, (13650), 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) [2023-08-30 14:31:26,294 INFO L175 Difference]: Start difference. First operand has 83 places, 66 transitions, 494 flow. Second operand 24 states and 5786 transitions. [2023-08-30 14:31:26,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 132 transitions, 1580 flow [2023-08-30 14:31:26,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 132 transitions, 1466 flow, removed 19 selfloop flow, removed 4 redundant places. [2023-08-30 14:31:26,304 INFO L231 Difference]: Finished difference. Result has 115 places, 81 transitions, 772 flow [2023-08-30 14:31:26,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=772, PETRI_PLACES=115, PETRI_TRANSITIONS=81} [2023-08-30 14:31:26,306 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 74 predicate places. [2023-08-30 14:31:26,306 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 81 transitions, 772 flow [2023-08-30 14:31:26,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 237.16666666666666) internal successors, (5692), 24 states have internal predecessors, (5692), 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) [2023-08-30 14:31:26,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:26,308 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 2, 1, 1, 1] [2023-08-30 14:31:26,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:26,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-08-30 14:31:26,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:26,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:26,520 INFO L85 PathProgramCache]: Analyzing trace with hash 870715537, now seen corresponding path program 3 times [2023-08-30 14:31:26,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:26,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623042088] [2023-08-30 14:31:26,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:26,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:26,802 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:26,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367698611] [2023-08-30 14:31:26,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-30 14:31:26,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:26,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:26,804 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) [2023-08-30 14:31:26,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-30 14:31:27,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-30 14:31:27,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:31:27,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-30 14:31:27,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-08-30 14:31:27,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:27,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623042088] [2023-08-30 14:31:27,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:27,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367698611] [2023-08-30 14:31:27,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367698611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:27,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:27,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 14:31:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467257850] [2023-08-30 14:31:27,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:27,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 14:31:27,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 14:31:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 14:31:27,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 546 [2023-08-30 14:31:27,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 81 transitions, 772 flow. Second operand has 7 states, 7 states have (on average 233.14285714285714) internal successors, (1632), 7 states have internal predecessors, (1632), 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) [2023-08-30 14:31:27,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:27,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 546 [2023-08-30 14:31:27,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:28,403 INFO L130 PetriNetUnfolder]: 201/538 cut-off events. [2023-08-30 14:31:28,403 INFO L131 PetriNetUnfolder]: For 1414/1414 co-relation queries the response was YES. [2023-08-30 14:31:28,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 538 events. 201/538 cut-off events. For 1414/1414 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1921 event pairs, 160 based on Foata normal form. 43/379 useless extension candidates. Maximal degree in co-relation 1523. Up to 468 conditions per place. [2023-08-30 14:31:28,407 INFO L137 encePairwiseOnDemand]: 540/546 looper letters, 79 selfloop transitions, 9 changer transitions 0/92 dead transitions. [2023-08-30 14:31:28,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 92 transitions, 993 flow [2023-08-30 14:31:28,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 14:31:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 14:31:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1433 transitions. [2023-08-30 14:31:28,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4374236874236874 [2023-08-30 14:31:28,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1433 transitions. [2023-08-30 14:31:28,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1433 transitions. [2023-08-30 14:31:28,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:28,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1433 transitions. [2023-08-30 14:31:28,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.83333333333334) internal successors, (1433), 6 states have internal predecessors, (1433), 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) [2023-08-30 14:31:28,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 546.0) internal successors, (3822), 7 states have internal predecessors, (3822), 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) [2023-08-30 14:31:28,418 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 546.0) internal successors, (3822), 7 states have internal predecessors, (3822), 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) [2023-08-30 14:31:28,418 INFO L175 Difference]: Start difference. First operand has 115 places, 81 transitions, 772 flow. Second operand 6 states and 1433 transitions. [2023-08-30 14:31:28,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 92 transitions, 993 flow [2023-08-30 14:31:28,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 92 transitions, 885 flow, removed 28 selfloop flow, removed 11 redundant places. [2023-08-30 14:31:28,429 INFO L231 Difference]: Finished difference. Result has 107 places, 71 transitions, 561 flow [2023-08-30 14:31:28,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=561, PETRI_PLACES=107, PETRI_TRANSITIONS=71} [2023-08-30 14:31:28,431 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 66 predicate places. [2023-08-30 14:31:28,431 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 71 transitions, 561 flow [2023-08-30 14:31:28,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 233.14285714285714) internal successors, (1632), 7 states have internal predecessors, (1632), 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) [2023-08-30 14:31:28,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:28,432 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:31:28,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:28,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:28,641 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:28,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:28,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1388126556, now seen corresponding path program 1 times [2023-08-30 14:31:28,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:28,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128121694] [2023-08-30 14:31:28,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:28,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:29,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1504593679] [2023-08-30 14:31:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:29,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:29,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:29,025 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:31:29,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-30 14:31:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:31,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 10510 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-30 14:31:31,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-08-30 14:31:31,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:32,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2023-08-30 14:31:32,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:32,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128121694] [2023-08-30 14:31:32,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:32,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504593679] [2023-08-30 14:31:32,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504593679] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:32,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:32,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2023-08-30 14:31:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141881629] [2023-08-30 14:31:32,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:32,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-08-30 14:31:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-08-30 14:31:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-08-30 14:31:32,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 546 [2023-08-30 14:31:32,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 71 transitions, 561 flow. Second operand has 32 states, 32 states have (on average 237.28125) internal successors, (7593), 32 states have internal predecessors, (7593), 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) [2023-08-30 14:31:32,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:32,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 546 [2023-08-30 14:31:32,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:34,893 INFO L130 PetriNetUnfolder]: 201/570 cut-off events. [2023-08-30 14:31:34,894 INFO L131 PetriNetUnfolder]: For 6922/6922 co-relation queries the response was YES. [2023-08-30 14:31:34,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1652 conditions, 570 events. 201/570 cut-off events. For 6922/6922 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1940 event pairs, 160 based on Foata normal form. 24/392 useless extension candidates. Maximal degree in co-relation 1605. Up to 411 conditions per place. [2023-08-30 14:31:34,898 INFO L137 encePairwiseOnDemand]: 542/546 looper letters, 61 selfloop transitions, 39 changer transitions 0/104 dead transitions. [2023-08-30 14:31:34,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 104 transitions, 1160 flow [2023-08-30 14:31:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-30 14:31:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-30 14:31:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7651 transitions. [2023-08-30 14:31:34,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.437900641025641 [2023-08-30 14:31:34,917 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7651 transitions. [2023-08-30 14:31:34,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7651 transitions. [2023-08-30 14:31:34,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:34,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7651 transitions. [2023-08-30 14:31:34,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 239.09375) internal successors, (7651), 32 states have internal predecessors, (7651), 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) [2023-08-30 14:31:34,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 546.0) internal successors, (18018), 33 states have internal predecessors, (18018), 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) [2023-08-30 14:31:34,961 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 546.0) internal successors, (18018), 33 states have internal predecessors, (18018), 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) [2023-08-30 14:31:34,961 INFO L175 Difference]: Start difference. First operand has 107 places, 71 transitions, 561 flow. Second operand 32 states and 7651 transitions. [2023-08-30 14:31:34,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 104 transitions, 1160 flow [2023-08-30 14:31:34,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 104 transitions, 1142 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 14:31:34,973 INFO L231 Difference]: Finished difference. Result has 142 places, 80 transitions, 760 flow [2023-08-30 14:31:34,974 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=760, PETRI_PLACES=142, PETRI_TRANSITIONS=80} [2023-08-30 14:31:34,975 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 101 predicate places. [2023-08-30 14:31:34,975 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 80 transitions, 760 flow [2023-08-30 14:31:34,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 237.28125) internal successors, (7593), 32 states have internal predecessors, (7593), 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) [2023-08-30 14:31:34,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:34,977 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:31:35,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:35,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-30 14:31:35,201 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:35,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash -885948836, now seen corresponding path program 2 times [2023-08-30 14:31:35,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:35,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936687592] [2023-08-30 14:31:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:35,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:35,740 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:35,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649741614] [2023-08-30 14:31:35,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 14:31:35,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:35,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:35,742 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:31:35,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-30 14:31:37,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 14:31:37,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:31:37,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 14:31:37,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2023-08-30 14:31:37,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 14:31:37,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:37,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936687592] [2023-08-30 14:31:37,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:37,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649741614] [2023-08-30 14:31:37,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649741614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:31:37,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:31:37,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 14:31:37,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065916276] [2023-08-30 14:31:37,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:31:37,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:31:37,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:37,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:31:37,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:31:37,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 546 [2023-08-30 14:31:37,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 80 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2023-08-30 14:31:37,825 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:37,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 546 [2023-08-30 14:31:37,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:38,153 INFO L130 PetriNetUnfolder]: 163/494 cut-off events. [2023-08-30 14:31:38,153 INFO L131 PetriNetUnfolder]: For 1758/1758 co-relation queries the response was YES. [2023-08-30 14:31:38,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 494 events. 163/494 cut-off events. For 1758/1758 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1558 event pairs, 128 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 1608. Up to 330 conditions per place. [2023-08-30 14:31:38,156 INFO L137 encePairwiseOnDemand]: 544/546 looper letters, 74 selfloop transitions, 1 changer transitions 0/79 dead transitions. [2023-08-30 14:31:38,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 79 transitions, 908 flow [2023-08-30 14:31:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:31:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:31:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2023-08-30 14:31:38,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4542124542124542 [2023-08-30 14:31:38,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2023-08-30 14:31:38,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2023-08-30 14:31:38,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:38,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2023-08-30 14:31:38,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2023-08-30 14:31:38,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:38,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 546.0) internal successors, (2184), 4 states have internal predecessors, (2184), 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) [2023-08-30 14:31:38,164 INFO L175 Difference]: Start difference. First operand has 142 places, 80 transitions, 760 flow. Second operand 3 states and 744 transitions. [2023-08-30 14:31:38,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 79 transitions, 908 flow [2023-08-30 14:31:38,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 79 transitions, 833 flow, removed 9 selfloop flow, removed 22 redundant places. [2023-08-30 14:31:38,178 INFO L231 Difference]: Finished difference. Result has 121 places, 79 transitions, 685 flow [2023-08-30 14:31:38,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=121, PETRI_TRANSITIONS=79} [2023-08-30 14:31:38,179 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 80 predicate places. [2023-08-30 14:31:38,179 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 79 transitions, 685 flow [2023-08-30 14:31:38,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2023-08-30 14:31:38,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:38,179 INFO L208 CegarLoopForPetriNet]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 14:31:38,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:38,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-30 14:31:38,392 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:38,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:38,393 INFO L85 PathProgramCache]: Analyzing trace with hash -885948837, now seen corresponding path program 1 times [2023-08-30 14:31:38,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:38,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416257737] [2023-08-30 14:31:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:38,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:38,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863572009] [2023-08-30 14:31:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:38,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:38,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:38,929 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:31:38,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-30 14:31:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:31:43,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 14254 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 14:31:43,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:31:43,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-30 14:31:43,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:31:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-30 14:31:43,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:31:43,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416257737] [2023-08-30 14:31:43,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:31:43,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863572009] [2023-08-30 14:31:43,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863572009] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:31:43,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:31:43,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-08-30 14:31:43,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930655474] [2023-08-30 14:31:43,340 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:31:43,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 14:31:43,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:31:43,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 14:31:43,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-08-30 14:31:43,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 546 [2023-08-30 14:31:43,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 79 transitions, 685 flow. Second operand has 8 states, 8 states have (on average 238.375) internal successors, (1907), 8 states have internal predecessors, (1907), 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) [2023-08-30 14:31:43,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:31:43,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 546 [2023-08-30 14:31:43,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:31:44,082 INFO L130 PetriNetUnfolder]: 174/498 cut-off events. [2023-08-30 14:31:44,083 INFO L131 PetriNetUnfolder]: For 4595/4595 co-relation queries the response was YES. [2023-08-30 14:31:44,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2424 conditions, 498 events. 174/498 cut-off events. For 4595/4595 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 780 event pairs, 64 based on Foata normal form. 4/426 useless extension candidates. Maximal degree in co-relation 2368. Up to 181 conditions per place. [2023-08-30 14:31:44,086 INFO L137 encePairwiseOnDemand]: 541/546 looper letters, 219 selfloop transitions, 28 changer transitions 0/251 dead transitions. [2023-08-30 14:31:44,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 251 transitions, 2846 flow [2023-08-30 14:31:44,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 14:31:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 14:31:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1943 transitions. [2023-08-30 14:31:44,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448260073260073 [2023-08-30 14:31:44,090 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1943 transitions. [2023-08-30 14:31:44,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1943 transitions. [2023-08-30 14:31:44,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:31:44,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1943 transitions. [2023-08-30 14:31:44,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 242.875) internal successors, (1943), 8 states have internal predecessors, (1943), 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) [2023-08-30 14:31:44,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 546.0) internal successors, (4914), 9 states have internal predecessors, (4914), 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) [2023-08-30 14:31:44,097 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 546.0) internal successors, (4914), 9 states have internal predecessors, (4914), 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) [2023-08-30 14:31:44,097 INFO L175 Difference]: Start difference. First operand has 121 places, 79 transitions, 685 flow. Second operand 8 states and 1943 transitions. [2023-08-30 14:31:44,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 251 transitions, 2846 flow [2023-08-30 14:31:44,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 251 transitions, 2845 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:31:44,118 INFO L231 Difference]: Finished difference. Result has 132 places, 98 transitions, 1214 flow [2023-08-30 14:31:44,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1214, PETRI_PLACES=132, PETRI_TRANSITIONS=98} [2023-08-30 14:31:44,119 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 91 predicate places. [2023-08-30 14:31:44,120 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 98 transitions, 1214 flow [2023-08-30 14:31:44,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 238.375) internal successors, (1907), 8 states have internal predecessors, (1907), 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) [2023-08-30 14:31:44,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:31:44,120 INFO L208 CegarLoopForPetriNet]: trace histogram [62, 3, 2, 1, 1] [2023-08-30 14:31:44,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-30 14:31:44,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-30 14:31:44,346 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:31:44,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:31:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash -886881956, now seen corresponding path program 4 times [2023-08-30 14:31:44,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:31:44,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697051912] [2023-08-30 14:31:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:31:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:31:44,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:31:44,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876623833] [2023-08-30 14:31:44,879 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-30 14:31:44,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:31:44,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:31:44,881 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:31:44,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-30 14:34:41,129 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-30 14:34:41,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 14:34:41,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 14680 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-30 14:34:41,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 14:34:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 0 proven. 1153 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-30 14:34:41,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 14:34:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2083 backedges. 0 proven. 191 refuted. 962 times theorem prover too weak. 930 trivial. 0 not checked. [2023-08-30 14:34:52,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:34:52,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697051912] [2023-08-30 14:34:52,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-30 14:34:52,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876623833] [2023-08-30 14:34:52,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876623833] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 14:34:52,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-08-30 14:34:52,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 12 [2023-08-30 14:34:52,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969028937] [2023-08-30 14:34:52,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-08-30 14:34:52,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 14:34:52,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:34:52,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 14:34:52,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=114, Unknown=4, NotChecked=0, Total=182 [2023-08-30 14:34:54,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:34:56,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:34:58,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:01,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:03,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:05,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:05,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 546 [2023-08-30 14:35:05,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 98 transitions, 1214 flow. Second operand has 14 states, 14 states have (on average 225.57142857142858) internal successors, (3158), 14 states have internal predecessors, (3158), 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) [2023-08-30 14:35:05,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:35:05,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 546 [2023-08-30 14:35:05,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:35:14,179 WARN L222 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 19 DAG size of output: 15 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 14:35:25,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:27,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:31,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:33,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-08-30 14:35:33,435 INFO L130 PetriNetUnfolder]: 143/466 cut-off events. [2023-08-30 14:35:33,436 INFO L131 PetriNetUnfolder]: For 5639/5639 co-relation queries the response was YES. [2023-08-30 14:35:33,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2384 conditions, 466 events. 143/466 cut-off events. For 5639/5639 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 746 event pairs, 64 based on Foata normal form. 32/422 useless extension candidates. Maximal degree in co-relation 2322. Up to 181 conditions per place. [2023-08-30 14:35:33,440 INFO L137 encePairwiseOnDemand]: 541/546 looper letters, 161 selfloop transitions, 18 changer transitions 0/183 dead transitions. [2023-08-30 14:35:33,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 183 transitions, 2210 flow [2023-08-30 14:35:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 14:35:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 14:35:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3411 transitions. [2023-08-30 14:35:33,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4164835164835165 [2023-08-30 14:35:33,446 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3411 transitions. [2023-08-30 14:35:33,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3411 transitions. [2023-08-30 14:35:33,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:35:33,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3411 transitions. [2023-08-30 14:35:33,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 227.4) internal successors, (3411), 15 states have internal predecessors, (3411), 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) [2023-08-30 14:35:33,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 546.0) internal successors, (8736), 16 states have internal predecessors, (8736), 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) [2023-08-30 14:35:33,459 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 546.0) internal successors, (8736), 16 states have internal predecessors, (8736), 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) [2023-08-30 14:35:33,459 INFO L175 Difference]: Start difference. First operand has 132 places, 98 transitions, 1214 flow. Second operand 15 states and 3411 transitions. [2023-08-30 14:35:33,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 183 transitions, 2210 flow [2023-08-30 14:35:33,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 183 transitions, 2105 flow, removed 41 selfloop flow, removed 4 redundant places. [2023-08-30 14:35:33,482 INFO L231 Difference]: Finished difference. Result has 144 places, 98 transitions, 1115 flow [2023-08-30 14:35:33,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=546, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1115, PETRI_PLACES=144, PETRI_TRANSITIONS=98} [2023-08-30 14:35:33,483 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 103 predicate places. [2023-08-30 14:35:33,483 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 98 transitions, 1115 flow [2023-08-30 14:35:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 225.57142857142858) internal successors, (3158), 14 states have internal predecessors, (3158), 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) [2023-08-30 14:35:33,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:35:33,484 INFO L208 CegarLoopForPetriNet]: trace histogram [93, 4, 3, 1, 1] [2023-08-30 14:35:33,697 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forcibly destroying the process [2023-08-30 14:35:33,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 137 [2023-08-30 14:35:33,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-30 14:35:33,781 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-08-30 14:35:33,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:35:33,782 INFO L85 PathProgramCache]: Analyzing trace with hash -776478999, now seen corresponding path program 5 times [2023-08-30 14:35:33,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:35:33,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486015337] [2023-08-30 14:35:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:35:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:35:34,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-30 14:35:34,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909318603] [2023-08-30 14:35:34,641 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-30 14:35:34,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 14:35:34,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:35:34,643 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 14:35:34,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process Killed by 15