./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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/06-symbeq_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:36:24,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:36:24,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:36:24,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:36:24,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:36:24,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:36:24,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:36:24,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:36:24,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:36:24,648 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:36:24,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:36:24,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:36:24,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:36:24,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:36:24,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:36:24,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:36:24,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:36:24,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:36:24,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:36:24,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:36:24,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:36:24,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:36:24,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:36:24,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:36:24,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:36:24,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:36:24,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:36:24,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:36:24,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:36:24,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:36:24,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:36:24,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:36:24,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:36:24,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:36:24,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:36:24,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:36:24,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:36:24,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:36:24,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:36:24,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:36:24,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:36:24,689 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:36:24,717 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:36:24,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:36:24,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:36:24,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:36:24,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:36:24,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:36:24,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:36:24,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:36:24,720 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:36:24,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:36:24,721 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:36:24,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:36:24,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:36:24,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:36:24,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:36:24,722 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:36:24,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:36:24,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:36:24,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:36:24,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:36:24,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:24,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:36:24,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:36:24,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:36:24,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:36:24,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:36:24,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:36:24,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:36:24,725 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:36:24,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:36:24,725 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:36:24,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:36:24,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:36:25,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:36:25,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:36:25,008 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:36:25,008 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:36:25,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i [2023-08-30 09:36:25,984 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:36:26,213 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:36:26,213 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i [2023-08-30 09:36:26,223 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96cb3e215/6fef404b30be41508a9d1c4dff0c3d20/FLAGe44629989 [2023-08-30 09:36:26,231 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96cb3e215/6fef404b30be41508a9d1c4dff0c3d20 [2023-08-30 09:36:26,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:36:26,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:36:26,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:26,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:36:26,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:36:26,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f9dfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26, skipping insertion in model container [2023-08-30 09:36:26,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:36:26,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:36:26,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:26,615 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:36:26,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:26,703 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:36:26,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26 WrapperNode [2023-08-30 09:36:26,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:26,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:26,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:36:26,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:36:26,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,757 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-08-30 09:36:26,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:26,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:36:26,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:36:26,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:36:26,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,790 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:36:26,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:36:26,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:36:26,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:36:26,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (1/1) ... [2023-08-30 09:36:26,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:26,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:26,826 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 09:36:26,856 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 09:36:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:36:26,871 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:36:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:36:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:36:26,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:36:26,873 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 09:36:26,987 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:36:26,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:36:27,128 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:36:27,132 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:36:27,132 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-30 09:36:27,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:27 BoogieIcfgContainer [2023-08-30 09:36:27,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:36:27,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:36:27,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:36:27,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:36:27,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:36:26" (1/3) ... [2023-08-30 09:36:27,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a1be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:27, skipping insertion in model container [2023-08-30 09:36:27,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:26" (2/3) ... [2023-08-30 09:36:27,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b4a1be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:27, skipping insertion in model container [2023-08-30 09:36:27,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:27" (3/3) ... [2023-08-30 09:36:27,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2023-08-30 09:36:27,143 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:36:27,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:36:27,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 09:36:27,149 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:36:27,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:36:27,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 183 flow [2023-08-30 09:36:27,245 INFO L130 PetriNetUnfolder]: 4/88 cut-off events. [2023-08-30 09:36:27,245 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:27,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 4/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 09:36:27,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 89 transitions, 183 flow [2023-08-30 09:36:27,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2023-08-30 09:36:27,253 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:36:27,259 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions, 179 flow [2023-08-30 09:36:27,260 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 88 transitions, 179 flow [2023-08-30 09:36:27,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 179 flow [2023-08-30 09:36:27,275 INFO L130 PetriNetUnfolder]: 4/88 cut-off events. [2023-08-30 09:36:27,275 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:27,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 4/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-08-30 09:36:27,276 INFO L119 LiptonReduction]: Number of co-enabled transitions 1254 [2023-08-30 09:36:29,050 INFO L134 LiptonReduction]: Checked pairs total: 1750 [2023-08-30 09:36:29,050 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-08-30 09:36:29,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:36:29,063 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;@40676244, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:36:29,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-30 09:36:29,065 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 09:36:29,065 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:29,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:29,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 09:36:29,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:29,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash 11112, now seen corresponding path program 1 times [2023-08-30 09:36:29,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:29,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141351388] [2023-08-30 09:36:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:29,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:29,203 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 09:36:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:29,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141351388] [2023-08-30 09:36:29,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141351388] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:29,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:29,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:36:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781375299] [2023-08-30 09:36:29,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:29,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:36:29,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:36:29,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:36:29,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-08-30 09:36:29,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 09:36:29,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:29,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-08-30 09:36:29,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:29,279 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-08-30 09:36:29,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:29,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 284 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-08-30 09:36:29,280 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-30 09:36:29,280 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-08-30 09:36:29,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:36:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:36:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-30 09:36:29,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708994708994709 [2023-08-30 09:36:29,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-30 09:36:29,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-30 09:36:29,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:29,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-30 09:36:29,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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 09:36:29,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:29,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:29,303 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 267 transitions. [2023-08-30 09:36:29,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-08-30 09:36:29,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:29,306 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-08-30 09:36:29,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 09:36:29,309 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-08-30 09:36:29,317 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-08-30 09:36:29,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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 09:36:29,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:29,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:36:29,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:36:29,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:29,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash 345664, now seen corresponding path program 1 times [2023-08-30 09:36:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:29,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840021627] [2023-08-30 09:36:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:29,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:29,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840021627] [2023-08-30 09:36:29,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840021627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:29,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:29,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:36:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549924768] [2023-08-30 09:36:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:36:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:36:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:36:29,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-08-30 09:36:29,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 09:36:29,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:29,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-08-30 09:36:29,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:29,431 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-08-30 09:36:29,431 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:29,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2023-08-30 09:36:29,432 INFO L137 encePairwiseOnDemand]: 187/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-30 09:36:29,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 80 flow [2023-08-30 09:36:29,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:36:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:36:29,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-08-30 09:36:29,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585537918871252 [2023-08-30 09:36:29,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-08-30 09:36:29,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-08-30 09:36:29,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:29,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-08-30 09:36:29,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 09:36:29,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:29,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:29,444 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 3 states and 260 transitions. [2023-08-30 09:36:29,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 80 flow [2023-08-30 09:36:29,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:29,445 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 44 flow [2023-08-30 09:36:29,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-08-30 09:36:29,446 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-08-30 09:36:29,446 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 44 flow [2023-08-30 09:36:29,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 09:36:29,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:29,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:36:29,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:36:29,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:29,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:29,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1708983365, now seen corresponding path program 1 times [2023-08-30 09:36:29,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:29,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431450106] [2023-08-30 09:36:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:29,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:29,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431450106] [2023-08-30 09:36:29,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431450106] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:29,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337230260] [2023-08-30 09:36:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:29,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:29,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:29,514 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 09:36:29,531 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 09:36:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:29,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:36:29,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:29,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:36:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:29,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337230260] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:36:29,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:36:29,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:36:29,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351500334] [2023-08-30 09:36:29,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:36:29,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:29,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:29,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:29,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 09:36:29,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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 09:36:29,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:29,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 09:36:29,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:29,672 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-08-30 09:36:29,672 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:29,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 189. Up to 89 conditions per place. [2023-08-30 09:36:29,673 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-30 09:36:29,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 96 flow [2023-08-30 09:36:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:36:29,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:36:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-08-30 09:36:29,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4435626102292769 [2023-08-30 09:36:29,674 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-08-30 09:36:29,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-08-30 09:36:29,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:29,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-08-30 09:36:29,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 09:36:29,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:29,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:29,678 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 44 flow. Second operand 6 states and 503 transitions. [2023-08-30 09:36:29,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 96 flow [2023-08-30 09:36:29,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:29,679 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-08-30 09:36:29,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 09:36:29,679 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 6 predicate places. [2023-08-30 09:36:29,679 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-08-30 09:36:29,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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 09:36:29,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:29,680 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:36:29,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:29,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:29,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:29,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:29,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1947830243, now seen corresponding path program 2 times [2023-08-30 09:36:29,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:29,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915556727] [2023-08-30 09:36:29,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:29,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915556727] [2023-08-30 09:36:29,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915556727] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:29,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990288812] [2023-08-30 09:36:29,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:36:29,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:29,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:29,961 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 09:36:29,963 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 09:36:30,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 09:36:30,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:36:30,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-30 09:36:30,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:30,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-08-30 09:36:30,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 09:36:30,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-08-30 09:36:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:36:30,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:36:30,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990288812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:30,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:36:30,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-08-30 09:36:30,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813022806] [2023-08-30 09:36:30,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:30,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 09:36:30,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:30,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 09:36:30,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-30 09:36:30,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 09:36:30,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:30,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:30,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 09:36:30,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:30,219 INFO L130 PetriNetUnfolder]: 27/72 cut-off events. [2023-08-30 09:36:30,220 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:36:30,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 72 events. 27/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 189 event pairs, 12 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 160. Up to 43 conditions per place. [2023-08-30 09:36:30,221 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 21 selfloop transitions, 3 changer transitions 4/28 dead transitions. [2023-08-30 09:36:30,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 151 flow [2023-08-30 09:36:30,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:36:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:36:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-08-30 09:36:30,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2023-08-30 09:36:30,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-08-30 09:36:30,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-08-30 09:36:30,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:30,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-08-30 09:36:30,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 09:36:30,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:30,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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 09:36:30,228 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 266 transitions. [2023-08-30 09:36:30,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 151 flow [2023-08-30 09:36:30,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 137 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:30,230 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 78 flow [2023-08-30 09:36:30,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-08-30 09:36:30,231 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 8 predicate places. [2023-08-30 09:36:30,231 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 78 flow [2023-08-30 09:36:30,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:30,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:30,232 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:36:30,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:30,436 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,SelfDestructingSolverStorable3 [2023-08-30 09:36:30,436 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:30,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1947828591, now seen corresponding path program 1 times [2023-08-30 09:36:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:30,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480956049] [2023-08-30 09:36:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:30,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:30,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480956049] [2023-08-30 09:36:30,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480956049] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:30,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066412883] [2023-08-30 09:36:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:30,505 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 09:36:30,507 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 09:36:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:30,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 09:36:30,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:30,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:36:30,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:30,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066412883] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:36:30,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:36:30,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-30 09:36:30,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367114806] [2023-08-30 09:36:30,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:36:30,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 09:36:30,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 09:36:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-30 09:36:30,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-08-30 09:36:30,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 78 flow. Second operand has 13 states, 13 states have (on average 81.3076923076923) internal successors, (1057), 13 states have internal predecessors, (1057), 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 09:36:30,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:30,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-08-30 09:36:30,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:30,691 INFO L130 PetriNetUnfolder]: 23/70 cut-off events. [2023-08-30 09:36:30,693 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-08-30 09:36:30,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 70 events. 23/70 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 22 based on Foata normal form. 6/64 useless extension candidates. Maximal degree in co-relation 182. Up to 61 conditions per place. [2023-08-30 09:36:30,694 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-08-30 09:36:30,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 166 flow [2023-08-30 09:36:30,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:36:30,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:36:30,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 992 transitions. [2023-08-30 09:36:30,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43738977072310403 [2023-08-30 09:36:30,697 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 992 transitions. [2023-08-30 09:36:30,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 992 transitions. [2023-08-30 09:36:30,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:30,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 992 transitions. [2023-08-30 09:36:30,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 82.66666666666667) internal successors, (992), 12 states have internal predecessors, (992), 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 09:36:30,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 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 09:36:30,703 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 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 09:36:30,704 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 78 flow. Second operand 12 states and 992 transitions. [2023-08-30 09:36:30,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 166 flow [2023-08-30 09:36:30,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 26 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:30,707 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 159 flow [2023-08-30 09:36:30,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=159, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2023-08-30 09:36:30,708 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 24 predicate places. [2023-08-30 09:36:30,708 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 159 flow [2023-08-30 09:36:30,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.3076923076923) internal successors, (1057), 13 states have internal predecessors, (1057), 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 09:36:30,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:30,709 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-08-30 09:36:30,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:30,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:30,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:30,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:30,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1139831407, now seen corresponding path program 2 times [2023-08-30 09:36:30,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:30,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127936444] [2023-08-30 09:36:30,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:30,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:31,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:31,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127936444] [2023-08-30 09:36:31,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127936444] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:31,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:31,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:36:31,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268643682] [2023-08-30 09:36:31,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:31,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:36:31,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:31,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:36:31,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:36:31,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 189 [2023-08-30 09:36:31,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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 09:36:31,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:31,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 189 [2023-08-30 09:36:31,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:31,155 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2023-08-30 09:36:31,156 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-08-30 09:36:31,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 58 events. 17/58 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 122 event pairs, 4 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 171. Up to 33 conditions per place. [2023-08-30 09:36:31,157 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 26 selfloop transitions, 5 changer transitions 2/33 dead transitions. [2023-08-30 09:36:31,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 33 transitions, 241 flow [2023-08-30 09:36:31,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:36:31,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:36:31,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2023-08-30 09:36:31,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45105820105820105 [2023-08-30 09:36:31,158 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 341 transitions. [2023-08-30 09:36:31,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 341 transitions. [2023-08-30 09:36:31,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:31,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 341 transitions. [2023-08-30 09:36:31,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 09:36:31,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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 09:36:31,160 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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 09:36:31,161 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 159 flow. Second operand 4 states and 341 transitions. [2023-08-30 09:36:31,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 33 transitions, 241 flow [2023-08-30 09:36:31,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 193 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:31,165 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 139 flow [2023-08-30 09:36:31,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2023-08-30 09:36:31,167 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 24 predicate places. [2023-08-30 09:36:31,167 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 139 flow [2023-08-30 09:36:31,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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 09:36:31,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:31,167 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:31,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:36:31,168 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:31,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash -755759592, now seen corresponding path program 1 times [2023-08-30 09:36:31,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:31,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033108843] [2023-08-30 09:36:31,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:31,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:31,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:31,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033108843] [2023-08-30 09:36:31,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033108843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:31,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:31,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:31,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538898443] [2023-08-30 09:36:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:31,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:31,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:31,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:31,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 189 [2023-08-30 09:36:31,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 139 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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 09:36:31,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:31,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 189 [2023-08-30 09:36:31,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:31,666 INFO L130 PetriNetUnfolder]: 21/68 cut-off events. [2023-08-30 09:36:31,666 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-30 09:36:31,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 68 events. 21/68 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 169 event pairs, 6 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 203. Up to 29 conditions per place. [2023-08-30 09:36:31,667 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 25 selfloop transitions, 10 changer transitions 7/42 dead transitions. [2023-08-30 09:36:31,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 42 transitions, 272 flow [2023-08-30 09:36:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 09:36:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 09:36:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 617 transitions. [2023-08-30 09:36:31,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080687830687831 [2023-08-30 09:36:31,669 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 617 transitions. [2023-08-30 09:36:31,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 617 transitions. [2023-08-30 09:36:31,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:31,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 617 transitions. [2023-08-30 09:36:31,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.125) internal successors, (617), 8 states have internal predecessors, (617), 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 09:36:31,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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 09:36:31,672 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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 09:36:31,672 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 139 flow. Second operand 8 states and 617 transitions. [2023-08-30 09:36:31,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 42 transitions, 272 flow [2023-08-30 09:36:31,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 42 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:36:31,673 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 179 flow [2023-08-30 09:36:31,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=179, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2023-08-30 09:36:31,674 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 31 predicate places. [2023-08-30 09:36:31,674 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 179 flow [2023-08-30 09:36:31,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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 09:36:31,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:31,674 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:31,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 09:36:31,674 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:31,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash -755785633, now seen corresponding path program 1 times [2023-08-30 09:36:31,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:31,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073861590] [2023-08-30 09:36:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:31,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:31,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:31,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073861590] [2023-08-30 09:36:31,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073861590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:31,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:31,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:31,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501193685] [2023-08-30 09:36:31,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:31,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:31,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:31,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 189 [2023-08-30 09:36:31,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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 09:36:31,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:31,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 189 [2023-08-30 09:36:31,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:32,030 INFO L130 PetriNetUnfolder]: 15/58 cut-off events. [2023-08-30 09:36:32,030 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2023-08-30 09:36:32,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 58 events. 15/58 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 135 event pairs, 2 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 181. Up to 17 conditions per place. [2023-08-30 09:36:32,031 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 23 selfloop transitions, 6 changer transitions 6/35 dead transitions. [2023-08-30 09:36:32,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 35 transitions, 245 flow [2023-08-30 09:36:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 09:36:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 09:36:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 617 transitions. [2023-08-30 09:36:32,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080687830687831 [2023-08-30 09:36:32,032 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 617 transitions. [2023-08-30 09:36:32,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 617 transitions. [2023-08-30 09:36:32,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:32,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 617 transitions. [2023-08-30 09:36:32,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.125) internal successors, (617), 8 states have internal predecessors, (617), 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 09:36:32,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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 09:36:32,035 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 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 09:36:32,035 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 179 flow. Second operand 8 states and 617 transitions. [2023-08-30 09:36:32,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 35 transitions, 245 flow [2023-08-30 09:36:32,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 35 transitions, 225 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:32,037 INFO L231 Difference]: Finished difference. Result has 55 places, 26 transitions, 136 flow [2023-08-30 09:36:32,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=26} [2023-08-30 09:36:32,037 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 32 predicate places. [2023-08-30 09:36:32,037 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 26 transitions, 136 flow [2023-08-30 09:36:32,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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 09:36:32,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:32,038 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:32,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 09:36:32,038 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:32,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:32,038 INFO L85 PathProgramCache]: Analyzing trace with hash -754341971, now seen corresponding path program 1 times [2023-08-30 09:36:32,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:32,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655380611] [2023-08-30 09:36:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:32,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:32,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655380611] [2023-08-30 09:36:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655380611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948871891] [2023-08-30 09:36:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:32,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:32,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 189 [2023-08-30 09:36:32,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 26 transitions, 136 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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 09:36:32,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:32,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 189 [2023-08-30 09:36:32,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:32,397 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2023-08-30 09:36:32,397 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-08-30 09:36:32,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 42 events. 9/42 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 4 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 132. Up to 16 conditions per place. [2023-08-30 09:36:32,398 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 23 selfloop transitions, 5 changer transitions 1/29 dead transitions. [2023-08-30 09:36:32,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 29 transitions, 198 flow [2023-08-30 09:36:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:36:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:36:32,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-08-30 09:36:32,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4038800705467372 [2023-08-30 09:36:32,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-08-30 09:36:32,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-08-30 09:36:32,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:32,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-08-30 09:36:32,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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 09:36:32,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:32,402 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:32,402 INFO L175 Difference]: Start difference. First operand has 55 places, 26 transitions, 136 flow. Second operand 6 states and 458 transitions. [2023-08-30 09:36:32,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 29 transitions, 198 flow [2023-08-30 09:36:32,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 29 transitions, 182 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 09:36:32,403 INFO L231 Difference]: Finished difference. Result has 49 places, 25 transitions, 126 flow [2023-08-30 09:36:32,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=126, PETRI_PLACES=49, PETRI_TRANSITIONS=25} [2023-08-30 09:36:32,404 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2023-08-30 09:36:32,404 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 25 transitions, 126 flow [2023-08-30 09:36:32,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 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 09:36:32,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:32,404 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:32,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 09:36:32,405 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:32,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash -754341972, now seen corresponding path program 1 times [2023-08-30 09:36:32,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:32,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363633045] [2023-08-30 09:36:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:32,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:32,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363633045] [2023-08-30 09:36:32,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363633045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:32,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:32,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76913084] [2023-08-30 09:36:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:32,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:32,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 189 [2023-08-30 09:36:32,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 25 transitions, 126 flow. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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 09:36:32,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:32,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 189 [2023-08-30 09:36:32,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:32,769 INFO L130 PetriNetUnfolder]: 7/36 cut-off events. [2023-08-30 09:36:32,770 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-30 09:36:32,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 36 events. 7/36 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 2 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 113. Up to 16 conditions per place. [2023-08-30 09:36:32,770 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 18 selfloop transitions, 2 changer transitions 7/27 dead transitions. [2023-08-30 09:36:32,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 182 flow [2023-08-30 09:36:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:36:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:36:32,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2023-08-30 09:36:32,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3945578231292517 [2023-08-30 09:36:32,773 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2023-08-30 09:36:32,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2023-08-30 09:36:32,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:32,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2023-08-30 09:36:32,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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 09:36:32,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 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 09:36:32,776 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 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 09:36:32,776 INFO L175 Difference]: Start difference. First operand has 49 places, 25 transitions, 126 flow. Second operand 7 states and 522 transitions. [2023-08-30 09:36:32,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 182 flow [2023-08-30 09:36:32,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 27 transitions, 170 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:32,777 INFO L231 Difference]: Finished difference. Result has 49 places, 20 transitions, 100 flow [2023-08-30 09:36:32,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=20} [2023-08-30 09:36:32,778 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2023-08-30 09:36:32,778 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 20 transitions, 100 flow [2023-08-30 09:36:32,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 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 09:36:32,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:32,778 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:32,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 09:36:32,779 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-30 09:36:32,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:32,779 INFO L85 PathProgramCache]: Analyzing trace with hash -755785632, now seen corresponding path program 2 times [2023-08-30 09:36:32,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:32,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709750281] [2023-08-30 09:36:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:32,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:32,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:32,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709750281] [2023-08-30 09:36:32,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709750281] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:32,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:32,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:32,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615662461] [2023-08-30 09:36:32,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:32,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:32,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:32,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:32,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 189 [2023-08-30 09:36:32,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 20 transitions, 100 flow. Second operand has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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 09:36:32,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:32,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 189 [2023-08-30 09:36:32,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:33,044 INFO L130 PetriNetUnfolder]: 2/21 cut-off events. [2023-08-30 09:36:33,044 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2023-08-30 09:36:33,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 21 events. 2/21 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 74. Up to 15 conditions per place. [2023-08-30 09:36:33,045 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-30 09:36:33,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 138 flow [2023-08-30 09:36:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:36:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:36:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2023-08-30 09:36:33,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012345679012346 [2023-08-30 09:36:33,046 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 455 transitions. [2023-08-30 09:36:33,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions. [2023-08-30 09:36:33,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:33,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions. [2023-08-30 09:36:33,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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 09:36:33,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:33,049 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 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 09:36:33,049 INFO L175 Difference]: Start difference. First operand has 49 places, 20 transitions, 100 flow. Second operand 6 states and 455 transitions. [2023-08-30 09:36:33,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 138 flow [2023-08-30 09:36:33,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:36:33,050 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 09:36:33,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-30 09:36:33,050 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 18 predicate places. [2023-08-30 09:36:33,050 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 09:36:33,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 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 09:36:33,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-30 09:36:33,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-30 09:36:33,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 09:36:33,054 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2023-08-30 09:36:33,057 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:36:33,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:36:33,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:36:33 BasicIcfg [2023-08-30 09:36:33,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:36:33,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:36:33,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:36:33,062 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:36:33,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:27" (3/4) ... [2023-08-30 09:36:33,064 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:36:33,067 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:36:33,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 09:36:33,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 09:36:33,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:36:33,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:36:33,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:36:33,093 INFO L158 Benchmark]: Toolchain (without parser) took 6859.80ms. Allocated memory was 69.2MB in the beginning and 151.0MB in the end (delta: 81.8MB). Free memory was 45.8MB in the beginning and 111.3MB in the end (delta: -65.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.92ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 34.6MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.25ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 32.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: Boogie Preprocessor took 39.16ms. Allocated memory is still 69.2MB. Free memory was 32.1MB in the beginning and 30.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: RCFGBuilder took 336.08ms. Allocated memory is still 69.2MB. Free memory was 30.6MB in the beginning and 36.0MB in the end (delta: -5.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,094 INFO L158 Benchmark]: TraceAbstraction took 5926.17ms. Allocated memory was 69.2MB in the beginning and 151.0MB in the end (delta: 81.8MB). Free memory was 35.4MB in the beginning and 113.4MB in the end (delta: -78.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,095 INFO L158 Benchmark]: Witness Printer took 31.64ms. Allocated memory is still 151.0MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:33,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 468.92ms. Allocated memory is still 69.2MB. Free memory was 45.5MB in the beginning and 34.6MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.25ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 32.1MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.16ms. Allocated memory is still 69.2MB. Free memory was 32.1MB in the beginning and 30.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.08ms. Allocated memory is still 69.2MB. Free memory was 30.6MB in the beginning and 36.0MB in the end (delta: -5.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5926.17ms. Allocated memory was 69.2MB in the beginning and 151.0MB in the end (delta: 81.8MB). Free memory was 35.4MB in the beginning and 113.4MB in the end (delta: -78.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 31.64ms. Allocated memory is still 151.0MB. Free memory was 113.4MB in the beginning and 111.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 88 PlacesBefore, 23 PlacesAfterwards, 88 TransitionsBefore, 20 TransitionsAfterwards, 1254 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 100 TotalNumberOfCompositions, 1750 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1192, independent conditional: 0, independent unconditional: 1192, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 742, independent: 720, independent conditional: 0, independent unconditional: 720, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1275, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 742, unknown conditional: 0, unknown unconditional: 742] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 755 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 531 mSDsluCounter, 301 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1448 IncrementalHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 26 mSDtfsCounter, 1448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=7, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 158 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 2 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 341/384 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:36:33,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE